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phoenix-firestorm/indra/newview/llface.cpp

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/**
* @file llface.cpp
* @brief LLFace class implementation
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "lldrawable.h" // lldrawable needs to be included before llface
#include "llface.h"
#include "llviewertextureanim.h"
#include "llviewercontrol.h"
#include "llvolume.h"
#include "m3math.h"
#include "llmatrix4a.h"
#include "v3color.h"
#include "lldefs.h"
#include "lldrawpoolavatar.h"
#include "lldrawpoolbump.h"
#include "llgl.h"
#include "llrender.h"
#include "lllightconstants.h"
#include "llsky.h"
#include "llviewercamera.h"
#include "llviewertexturelist.h"
#include "llvopartgroup.h"
#include "llvosky.h"
#include "llvovolume.h"
#include "pipeline.h"
#include "llviewerregion.h"
#include "llviewerwindow.h"
#include "llviewershadermgr.h"
#include "llviewertexture.h"
#include "llvoavatar.h"
#include "llsculptidsize.h"
#include "llmeshrepository.h"
#if LL_LINUX
// Work-around spurious used before init warning on Vector4a
//
#pragma GCC diagnostic ignored "-Wuninitialized"
#endif
extern BOOL gGLDebugLoggingEnabled;
#define LL_MAX_INDICES_COUNT 1000000
static LLStaticHashedString sTextureIndexIn("texture_index_in");
static LLStaticHashedString sColorIn("color_in");
BOOL LLFace::sSafeRenderSelect = TRUE; // FALSE
#define DOTVEC(a,b) (a.mV[0]*b.mV[0] + a.mV[1]*b.mV[1] + a.mV[2]*b.mV[2])
/*
For each vertex, given:
B - binormal
T - tangent
N - normal
P - position
The resulting texture coordinate <u,v> is:
u = 2(B dot P)
v = 2(T dot P)
*/
void planarProjection(LLVector2 &tc, const LLVector4a& normal,
const LLVector4a &center, const LLVector4a& vec)
{
LLVector4a binormal;
F32 d = normal[0];
if (d >= 0.5f || d <= -0.5f)
{
if (d < 0)
{
binormal.set(0,-1,0);
}
else
{
binormal.set(0, 1, 0);
}
}
else
{
if (normal[1] > 0)
{
binormal.set(-1,0,0);
}
else
{
binormal.set(1,0,0);
}
}
LLVector4a tangent;
tangent.setCross3(binormal,normal);
tc.mV[1] = -((tangent.dot3(vec).getF32())*2 - 0.5f);
tc.mV[0] = 1.0f+((binormal.dot3(vec).getF32())*2 - 0.5f);
}
////////////////////
//
// LLFace implementation
//
void LLFace::init(LLDrawable* drawablep, LLViewerObject* objp)
{
LL_PROFILE_ZONE_SCOPED;
mLastUpdateTime = gFrameTimeSeconds;
mLastMoveTime = 0.f;
mLastSkinTime = gFrameTimeSeconds;
mVSize = 0.f;
mPixelArea = 16.f;
mState = GLOBAL;
mDrawPoolp = NULL;
mPoolType = 0;
mCenterLocal = objp->getPosition();
mCenterAgent = drawablep->getPositionAgent();
mDistance = 0.f;
mGeomCount = 0;
mGeomIndex = 0;
mIndicesCount = 0;
//special value to indicate uninitialized position
mIndicesIndex = 0xFFFFFFFF;
for (U32 i = 0; i < LLRender::NUM_TEXTURE_CHANNELS; ++i)
{
mIndexInTex[i] = 0;
mTexture[i] = NULL;
}
mTEOffset = -1;
mTextureIndex = FACE_DO_NOT_BATCH_TEXTURES;
setDrawable(drawablep);
mVObjp = objp;
mReferenceIndex = -1;
mTextureMatrix = NULL;
mDrawInfo = NULL;
mFaceColor = LLColor4(1,0,0,1);
mImportanceToCamera = 0.f ;
mBoundingSphereRadius = 0.0f ;
mHasMedia = false ;
mIsMediaAllowed = true;
}
void LLFace::destroy()
{
if (gDebugGL)
{
gPipeline.checkReferences(this);
}
for (U32 i = 0; i < LLRender::NUM_TEXTURE_CHANNELS; ++i)
{
if(mTexture[i].notNull())
{
mTexture[i]->removeFace(i, this) ;
mTexture[i] = NULL;
}
}
if (isState(LLFace::PARTICLE))
{
LLVOPartGroup::freeVBSlot(getGeomIndex()/4);
clearState(LLFace::PARTICLE);
}
if (mDrawPoolp)
{
mDrawPoolp->removeFace(this);
mDrawPoolp = NULL;
}
if (mTextureMatrix)
{
delete mTextureMatrix;
mTextureMatrix = NULL;
if (mDrawablep)
{
LLSpatialGroup* group = mDrawablep->getSpatialGroup();
if (group)
{
group->dirtyGeom();
gPipeline.markRebuild(group, TRUE);
}
}
}
setDrawInfo(NULL);
mDrawablep = NULL;
mVObjp = NULL;
}
void LLFace::setWorldMatrix(const LLMatrix4 &mat)
{
LL_ERRS() << "Faces on this drawable are not independently modifiable\n" << LL_ENDL;
}
void LLFace::setPool(LLFacePool* pool)
{
mDrawPoolp = pool;
}
void LLFace::setPool(LLFacePool* new_pool, LLViewerTexture *texturep)
{
LL_PROFILE_ZONE_SCOPED
if (!new_pool)
{
LL_ERRS() << "Setting pool to null!" << LL_ENDL;
}
if (new_pool != mDrawPoolp)
{
// Remove from old pool
if (mDrawPoolp)
{
mDrawPoolp->removeFace(this);
if (mDrawablep)
{
gPipeline.markRebuild(mDrawablep, LLDrawable::REBUILD_ALL, TRUE);
}
}
mGeomIndex = 0;
// Add to new pool
if (new_pool)
{
new_pool->addFace(this);
}
mDrawPoolp = new_pool;
}
setTexture(texturep) ;
}
void LLFace::setTexture(U32 ch, LLViewerTexture* tex)
{
llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
if(mTexture[ch] == tex)
{
return ;
}
if(mTexture[ch].notNull())
{
mTexture[ch]->removeFace(ch, this) ;
}
if(tex)
{
tex->addFace(ch, this) ;
}
mTexture[ch] = tex ;
}
void LLFace::setTexture(LLViewerTexture* tex)
{
setDiffuseMap(tex);
}
void LLFace::setDiffuseMap(LLViewerTexture* tex)
{
setTexture(LLRender::DIFFUSE_MAP, tex);
}
void LLFace::setAlternateDiffuseMap(LLViewerTexture* tex)
{
setTexture(LLRender::ALTERNATE_DIFFUSE_MAP, tex);
}
void LLFace::setNormalMap(LLViewerTexture* tex)
{
setTexture(LLRender::NORMAL_MAP, tex);
}
void LLFace::setSpecularMap(LLViewerTexture* tex)
{
setTexture(LLRender::SPECULAR_MAP, tex);
}
void LLFace::dirtyTexture()
{
LL_PROFILE_ZONE_SCOPED
LLDrawable* drawablep = getDrawable();
if (mVObjp.notNull() && mVObjp->getVolume())
{
for (U32 ch = 0; ch < LLRender::NUM_TEXTURE_CHANNELS; ++ch)
{
if (mTexture[ch].notNull() && mTexture[ch]->getComponents() == 4)
{ //dirty texture on an alpha object should be treated as an LoD update
LLVOVolume* vobj = drawablep->getVOVolume();
if (vobj)
{
vobj->mLODChanged = TRUE;
vobj->updateVisualComplexity();
}
gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_VOLUME, FALSE);
}
}
}
gPipeline.markTextured(drawablep);
}
void LLFace::notifyAboutCreatingTexture(LLViewerTexture *texture)
{
LLDrawable* drawablep = getDrawable();
if(mVObjp.notNull() && mVObjp->getVolume())
{
LLVOVolume *vobj = drawablep->getVOVolume();
if(vobj && vobj->notifyAboutCreatingTexture(texture))
{
gPipeline.markTextured(drawablep);
gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_VOLUME);
}
}
}
void LLFace::notifyAboutMissingAsset(LLViewerTexture *texture)
{
LLDrawable* drawablep = getDrawable();
if(mVObjp.notNull() && mVObjp->getVolume())
{
LLVOVolume *vobj = drawablep->getVOVolume();
if(vobj && vobj->notifyAboutMissingAsset(texture))
{
gPipeline.markTextured(drawablep);
gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_VOLUME);
}
}
}
void LLFace::switchTexture(U32 ch, LLViewerTexture* new_texture)
{
llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
if(mTexture[ch] == new_texture)
{
return ;
}
if(!new_texture)
{
LL_ERRS() << "Can not switch to a null texture." << LL_ENDL;
return;
}
llassert(mTexture[ch].notNull());
new_texture->addTextureStats(mTexture[ch]->getMaxVirtualSize()) ;
if (ch == LLRender::DIFFUSE_MAP)
{
getViewerObject()->changeTEImage(mTEOffset, new_texture) ;
}
setTexture(ch, new_texture) ;
dirtyTexture();
}
void LLFace::setTEOffset(const S32 te_offset)
{
mTEOffset = te_offset;
}
void LLFace::setFaceColor(const LLColor4& color)
{
mFaceColor = color;
setState(USE_FACE_COLOR);
}
void LLFace::unsetFaceColor()
{
clearState(USE_FACE_COLOR);
}
void LLFace::setDrawable(LLDrawable *drawable)
{
mDrawablep = drawable;
mXform = &drawable->mXform;
}
void LLFace::setSize(S32 num_vertices, S32 num_indices, bool align)
{
if (align)
{
//allocate vertices in blocks of 4 for alignment
num_vertices = (num_vertices + 0x3) & ~0x3;
}
if (mGeomCount != num_vertices ||
mIndicesCount != num_indices)
{
mGeomCount = num_vertices;
mIndicesCount = num_indices;
mVertexBuffer = NULL;
}
llassert(verify());
}
void LLFace::setGeomIndex(U16 idx)
{
if (mGeomIndex != idx)
{
mGeomIndex = idx;
mVertexBuffer = NULL;
}
}
void LLFace::setTextureIndex(U8 index)
{
if (index != mTextureIndex)
{
mTextureIndex = index;
if (mTextureIndex != FACE_DO_NOT_BATCH_TEXTURES)
{
mDrawablep->setState(LLDrawable::REBUILD_POSITION);
}
else
{
if (mDrawInfo && !mDrawInfo->mTextureList.empty())
{
LL_ERRS() << "Face with no texture index references indexed texture draw info." << LL_ENDL;
}
}
}
}
void LLFace::setIndicesIndex(S32 idx)
{
if (mIndicesIndex != idx)
{
mIndicesIndex = idx;
mVertexBuffer = NULL;
}
}
//============================================================================
U16 LLFace::getGeometryAvatar(
LLStrider<LLVector3> &vertices,
LLStrider<LLVector3> &normals,
LLStrider<LLVector2> &tex_coords,
LLStrider<F32> &vertex_weights,
LLStrider<LLVector4> &clothing_weights)
{
if (mVertexBuffer.notNull())
{
mVertexBuffer->getVertexStrider (vertices, mGeomIndex, mGeomCount);
mVertexBuffer->getNormalStrider (normals, mGeomIndex, mGeomCount);
mVertexBuffer->getTexCoord0Strider (tex_coords, mGeomIndex, mGeomCount);
mVertexBuffer->getWeightStrider(vertex_weights, mGeomIndex, mGeomCount);
mVertexBuffer->getClothWeightStrider(clothing_weights, mGeomIndex, mGeomCount);
}
return mGeomIndex;
}
U16 LLFace::getGeometry(LLStrider<LLVector3> &vertices, LLStrider<LLVector3> &normals,
LLStrider<LLVector2> &tex_coords, LLStrider<U16> &indicesp)
{
if (mVertexBuffer.notNull())
{
mVertexBuffer->getVertexStrider(vertices, mGeomIndex, mGeomCount);
if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_NORMAL))
{
mVertexBuffer->getNormalStrider(normals, mGeomIndex, mGeomCount);
}
if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD0))
{
mVertexBuffer->getTexCoord0Strider(tex_coords, mGeomIndex, mGeomCount);
}
mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex, mIndicesCount);
}
return mGeomIndex;
}
void LLFace::updateCenterAgent()
{
if (mDrawablep->isActive())
{
mCenterAgent = mCenterLocal * getRenderMatrix();
}
else
{
mCenterAgent = mCenterLocal;
}
}
void LLFace::renderSelected(LLViewerTexture *imagep, const LLColor4& color)
{
LL_PROFILE_ZONE_SCOPED
if (mDrawablep == NULL || mDrawablep->getSpatialGroup() == NULL)
{
return;
}
mDrawablep->getSpatialGroup()->rebuildGeom();
mDrawablep->getSpatialGroup()->rebuildMesh();
if(mVertexBuffer.isNull())
{
return;
}
if (mGeomCount > 0 && mIndicesCount > 0)
{
gGL.getTexUnit(0)->bind(imagep);
gGL.pushMatrix();
if (mDrawablep->isActive())
{
gGL.multMatrix((GLfloat*)mDrawablep->getRenderMatrix().mMatrix);
}
else
{
gGL.multMatrix((GLfloat*)mDrawablep->getRegion()->mRenderMatrix.mMatrix);
}
gGL.diffuseColor4fv(color.mV);
if (mDrawablep->isState(LLDrawable::RIGGED))
{
LLVOVolume* volume = mDrawablep->getVOVolume();
if (volume)
{
LLRiggedVolume* rigged = volume->getRiggedVolume();
if (rigged)
{
// called when selecting a face during edit of a mesh object
LLGLEnable offset(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(-1.f, -1.f);
gGL.multMatrix((F32*) volume->getRelativeXform().mMatrix);
const LLVolumeFace& vol_face = rigged->getVolumeFace(getTEOffset());
LLVertexBuffer::unbind();
glVertexPointer(3, GL_FLOAT, 16, vol_face.mPositions);
if (vol_face.mTexCoords)
{
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 8, vol_face.mTexCoords);
}
gGL.syncMatrices();
LL_PROFILER_GPU_ZONEC( "gl.DrawElements", 0x00FF00 );
glDrawElements(GL_TRIANGLES, vol_face.mNumIndices, GL_UNSIGNED_SHORT, vol_face.mIndices);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
}
}
else
{
// cheaters sometimes prosper...
//
mVertexBuffer->setBuffer(mVertexBuffer->getTypeMask());
mVertexBuffer->draw(LLRender::TRIANGLES, mIndicesCount, mIndicesIndex);
}
gGL.popMatrix();
}
}
void renderFace(LLDrawable* drawable, LLFace *face)
{
LL_PROFILE_ZONE_SCOPED
LLVOVolume* vobj = drawable->getVOVolume();
if (vobj)
{
LLVolume* volume = NULL;
if (drawable->isState(LLDrawable::RIGGED))
{
volume = vobj->getRiggedVolume();
}
else
{
volume = vobj->getVolume();
}
if (volume)
{
const LLVolumeFace& vol_face = volume->getVolumeFace(face->getTEOffset());
LLVertexBuffer::drawElements(LLRender::TRIANGLES, vol_face.mPositions, NULL, vol_face.mNumIndices, vol_face.mIndices);
}
}
}
void LLFace::renderOneWireframe(const LLColor4 &color, F32 fogCfx, bool wireframe_selection, bool bRenderHiddenSelections, bool shader)
{
if (bRenderHiddenSelections)
{
gGL.blendFunc(LLRender::BF_SOURCE_COLOR, LLRender::BF_ONE);
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE, GL_GEQUAL);
if (shader)
{
gGL.diffuseColor4f(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], 0.4f);
renderFace(mDrawablep, this);
}
else
{
LLGLEnable fog(GL_FOG);
glFogi(GL_FOG_MODE, GL_LINEAR);
float d = (LLViewerCamera::getInstance()->getPointOfInterest() - LLViewerCamera::getInstance()->getOrigin()).magVec();
LLColor4 fogCol = color * fogCfx;
glFogf(GL_FOG_START, d);
glFogf(GL_FOG_END, d*(1 + (LLViewerCamera::getInstance()->getView() / LLViewerCamera::getInstance()->getDefaultFOV())));
glFogfv(GL_FOG_COLOR, fogCol.mV);
gGL.flush();
{
gGL.diffuseColor4f(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], 0.4f);
renderFace(mDrawablep, this);
}
}
}
gGL.flush();
gGL.setSceneBlendType(LLRender::BT_ALPHA);
gGL.diffuseColor4f(color.mV[VRED] * 2, color.mV[VGREEN] * 2, color.mV[VBLUE] * 2, color.mV[VALPHA]);
{
LLGLDisable depth(wireframe_selection ? 0 : GL_BLEND);
LLGLEnable stencil(wireframe_selection ? 0 : GL_STENCIL_TEST);
if (!wireframe_selection)
{ //modify wireframe into outline selection mode
glStencilFunc(GL_NOTEQUAL, 2, 0xffff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
}
LLGLEnable offset(GL_POLYGON_OFFSET_LINE);
glPolygonOffset(3.f, 3.f);
glLineWidth(5.f);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
renderFace(mDrawablep, this);
}
}
/* removed in lieu of raycast uv detection
void LLFace::renderSelectedUV()
{
LLViewerTexture* red_blue_imagep = LLViewerTextureManager::getFetchedTextureFromFile("uv_test1.j2c", TRUE, LLGLTexture::BOOST_UI);
LLViewerTexture* green_imagep = LLViewerTextureManager::getFetchedTextureFromFile("uv_test2.tga", TRUE, LLGLTexture::BOOST_UI);
LLGLSUVSelect object_select;
// use red/blue gradient to get coarse UV coordinates
renderSelected(red_blue_imagep, LLColor4::white);
static F32 bias = 0.f;
static F32 factor = -10.f;
glPolygonOffset(factor, bias);
// add green dither pattern on top of red/blue gradient
gGL.blendFunc(LLRender::BF_ONE, LLRender::BF_ONE);
gGL.matrixMode(LLRender::MM_TEXTURE);
gGL.pushMatrix();
// make green pattern repeat once per texel in red/blue texture
gGL.scalef(256.f, 256.f, 1.f);
gGL.matrixMode(LLRender::MM_MODELVIEW);
renderSelected(green_imagep, LLColor4::white);
gGL.matrixMode(LLRender::MM_TEXTURE);
gGL.popMatrix();
gGL.matrixMode(LLRender::MM_MODELVIEW);
gGL.blendFunc(LLRender::BF_SOURCE_ALPHA, LLRender::BF_ONE_MINUS_SOURCE_ALPHA);
}
*/
void LLFace::setDrawInfo(LLDrawInfo* draw_info)
{
if (draw_info)
{
if (draw_info->mFace)
{
draw_info->mFace->setDrawInfo(NULL);
}
draw_info->mFace = this;
}
if (mDrawInfo)
{
mDrawInfo->mFace = NULL;
}
mDrawInfo = draw_info;
}
void LLFace::printDebugInfo() const
{
LLFacePool *poolp = getPool();
LL_INFOS() << "Object: " << getViewerObject()->mID << LL_ENDL;
if (getDrawable())
{
LL_INFOS() << "Type: " << LLPrimitive::pCodeToString(getDrawable()->getVObj()->getPCode()) << LL_ENDL;
}
if (getTexture())
{
LL_INFOS() << "Texture: " << getTexture() << " Comps: " << (U32)getTexture()->getComponents() << LL_ENDL;
}
else
{
LL_INFOS() << "No texture: " << LL_ENDL;
}
LL_INFOS() << "Face: " << this << LL_ENDL;
LL_INFOS() << "State: " << getState() << LL_ENDL;
LL_INFOS() << "Geom Index Data:" << LL_ENDL;
LL_INFOS() << "--------------------" << LL_ENDL;
LL_INFOS() << "GI: " << mGeomIndex << " Count:" << mGeomCount << LL_ENDL;
LL_INFOS() << "Face Index Data:" << LL_ENDL;
LL_INFOS() << "--------------------" << LL_ENDL;
LL_INFOS() << "II: " << mIndicesIndex << " Count:" << mIndicesCount << LL_ENDL;
LL_INFOS() << LL_ENDL;
if (poolp)
{
poolp->printDebugInfo();
S32 pool_references = 0;
for (std::vector<LLFace*>::iterator iter = poolp->mReferences.begin();
iter != poolp->mReferences.end(); iter++)
{
LLFace *facep = *iter;
if (facep == this)
{
LL_INFOS() << "Pool reference: " << pool_references << LL_ENDL;
pool_references++;
}
}
if (pool_references != 1)
{
LL_INFOS() << "Incorrect number of pool references!" << LL_ENDL;
}
}
#if 0
LL_INFOS() << "Indices:" << LL_ENDL;
LL_INFOS() << "--------------------" << LL_ENDL;
const U32 *indicesp = getRawIndices();
S32 indices_count = getIndicesCount();
S32 geom_start = getGeomStart();
for (S32 i = 0; i < indices_count; i++)
{
LL_INFOS() << i << ":" << indicesp[i] << ":" << (S32)(indicesp[i] - geom_start) << LL_ENDL;
}
LL_INFOS() << LL_ENDL;
LL_INFOS() << "Vertices:" << LL_ENDL;
LL_INFOS() << "--------------------" << LL_ENDL;
for (S32 i = 0; i < mGeomCount; i++)
{
LL_INFOS() << mGeomIndex + i << ":" << poolp->getVertex(mGeomIndex + i) << LL_ENDL;
}
LL_INFOS() << LL_ENDL;
#endif
}
// Transform the texture coordinates for this face.
static void xform(LLVector2 &tex_coord, F32 cosAng, F32 sinAng, F32 offS, F32 offT, F32 magS, F32 magT)
{
// New, good way
F32 s = tex_coord.mV[0];
F32 t = tex_coord.mV[1];
// Texture transforms are done about the center of the face.
s -= 0.5;
t -= 0.5;
// Handle rotation
F32 temp = s;
s = s * cosAng + t * sinAng;
t = -temp * sinAng + t * cosAng;
// Then scale
s *= magS;
t *= magT;
// Then offset
s += offS + 0.5f;
t += offT + 0.5f;
tex_coord.mV[0] = s;
tex_coord.mV[1] = t;
}
// Transform the texture coordinates for this face.
static void xform4a(LLVector4a &tex_coord, const LLVector4a& trans, const LLVector4Logical& mask, const LLVector4a& rot0, const LLVector4a& rot1, const LLVector4a& offset, const LLVector4a& scale)
{
//tex coord is two coords, <s0, t0, s1, t1>
LLVector4a st;
// Texture transforms are done about the center of the face.
st.setAdd(tex_coord, trans);
// Handle rotation
LLVector4a rot_st;
// <s0 * cosAng, s0*-sinAng, s1*cosAng, s1*-sinAng>
LLVector4a s0;
s0.splat(st, 0);
LLVector4a s1;
s1.splat(st, 2);
LLVector4a ss;
ss.setSelectWithMask(mask, s1, s0);
LLVector4a a;
a.setMul(rot0, ss);
// <t0*sinAng, t0*cosAng, t1*sinAng, t1*cosAng>
LLVector4a t0;
t0.splat(st, 1);
LLVector4a t1;
t1.splat(st, 3);
LLVector4a tt;
tt.setSelectWithMask(mask, t1, t0);
LLVector4a b;
b.setMul(rot1, tt);
st.setAdd(a,b);
// Then scale
st.mul(scale);
// Then offset
tex_coord.setAdd(st, offset);
}
bool less_than_max_mag(const LLVector4a& vec)
{
LLVector4a MAX_MAG;
MAX_MAG.splat(1024.f*1024.f);
LLVector4a val;
val.setAbs(vec);
S32 lt = val.lessThan(MAX_MAG).getGatheredBits() & 0x7;
return lt == 0x7;
}
BOOL LLFace::genVolumeBBoxes(const LLVolume &volume, S32 f,
const LLMatrix4& mat_vert_in, BOOL global_volume)
{
LL_PROFILE_ZONE_SCOPED
//get bounding box
if (mDrawablep->isState(LLDrawable::REBUILD_VOLUME | LLDrawable::REBUILD_POSITION | LLDrawable::REBUILD_RIGGED))
{
if (f >= volume.getNumVolumeFaces())
{
LL_WARNS() << "Generating bounding box for invalid face index!" << LL_ENDL;
f = 0;
}
const LLVolumeFace &face = volume.getVolumeFace(f);
LL_DEBUGS("RiggedBox") << "updating extents for face " << f
<< " starting extents " << mExtents[0] << ", " << mExtents[1]
<< " starting vf extents " << face.mExtents[0] << ", " << face.mExtents[1]
<< " num verts " << face.mNumVertices << LL_ENDL;
// MAINT-8264 - stray vertices, especially in low LODs, cause bounding box errors.
if (face.mNumVertices < 3)
{
LL_DEBUGS("RiggedBox") << "skipping face " << f << ", bad num vertices "
<< face.mNumVertices << " " << face.mNumIndices << " " << face.mWeights << LL_ENDL;
return FALSE;
}
//VECTORIZE THIS
LLMatrix4a mat_vert;
mat_vert.loadu(mat_vert_in);
LLVector4a new_extents[2];
llassert(less_than_max_mag(face.mExtents[0]));
llassert(less_than_max_mag(face.mExtents[1]));
matMulBoundBox(mat_vert, face.mExtents, mExtents);
LL_DEBUGS("RiggedBox") << "updated extents for face " << f
<< " bbox gave extents " << mExtents[0] << ", " << mExtents[1] << LL_ENDL;
if (!mDrawablep->isActive())
{ // Shift position for region
LLVector4a offset;
offset.load3(mDrawablep->getRegion()->getOriginAgent().mV);
mExtents[0].add(offset);
mExtents[1].add(offset);
LL_DEBUGS("RiggedBox") << "updating extents for face " << f
<< " not active, added offset " << offset << LL_ENDL;
}
LL_DEBUGS("RiggedBox") << "updated extents for face " << f
<< " to " << mExtents[0] << ", " << mExtents[1] << LL_ENDL;
LLVector4a t;
t.setAdd(mExtents[0],mExtents[1]);
t.mul(0.5f);
mCenterLocal.set(t.getF32ptr());
t.setSub(mExtents[1],mExtents[0]);
mBoundingSphereRadius = t.getLength3().getF32()*0.5f;
updateCenterAgent();
}
return TRUE;
}
// convert surface coordinates to texture coordinates, based on
// the values in the texture entry. probably should be
// integrated with getGeometryVolume() for its texture coordinate
// generation - but i'll leave that to someone more familiar
// with the implications.
LLVector2 LLFace::surfaceToTexture(LLVector2 surface_coord, const LLVector4a& position, const LLVector4a& normal)
{
LLVector2 tc = surface_coord;
const LLTextureEntry *tep = getTextureEntry();
if (tep == NULL)
{
// can't do much without the texture entry
return surface_coord;
}
//VECTORIZE THIS
// see if we have a non-default mapping
U8 texgen = getTextureEntry()->getTexGen();
if (texgen != LLTextureEntry::TEX_GEN_DEFAULT)
{
LLVector4a& center = *(mDrawablep->getVOVolume()->getVolume()->getVolumeFace(mTEOffset).mCenter);
LLVector4a volume_position;
LLVector3 v_position(position.getF32ptr());
volume_position.load3(mDrawablep->getVOVolume()->agentPositionToVolume(v_position).mV);
if (!mDrawablep->getVOVolume()->isVolumeGlobal())
{
LLVector4a scale;
scale.load3(mVObjp->getScale().mV);
volume_position.mul(scale);
}
LLVector4a volume_normal;
LLVector3 v_normal(normal.getF32ptr());
volume_normal.load3(mDrawablep->getVOVolume()->agentDirectionToVolume(v_normal).mV);
volume_normal.normalize3fast();
if (texgen == LLTextureEntry::TEX_GEN_PLANAR)
{
planarProjection(tc, volume_normal, center, volume_position);
}
}
if (mTextureMatrix) // if we have a texture matrix, use it
{
LLVector3 tc3(tc);
tc3 = tc3 * *mTextureMatrix;
tc = LLVector2(tc3);
}
else // otherwise use the texture entry parameters
{
xform(tc, cos(tep->getRotation()), sin(tep->getRotation()),
tep->mOffsetS, tep->mOffsetT, tep->mScaleS, tep->mScaleT);
}
return tc;
}
// Returns scale compared to default texgen, and face orientation as calculated
// by planarProjection(). This is needed to match planar texgen parameters.
void LLFace::getPlanarProjectedParams(LLQuaternion* face_rot, LLVector3* face_pos, F32* scale) const
{
const LLMatrix4& vol_mat = getWorldMatrix();
const LLVolumeFace& vf = getViewerObject()->getVolume()->getVolumeFace(mTEOffset);
const LLVector4a& normal4a = vf.mNormals[0];
const LLVector4a& tangent = vf.mTangents[0];
if (!&tangent)
{
return;
}
LLVector4a binormal4a;
binormal4a.setCross3(normal4a, tangent);
binormal4a.mul(tangent.getF32ptr()[3]);
LLVector2 projected_binormal;
planarProjection(projected_binormal, normal4a, *vf.mCenter, binormal4a);
projected_binormal -= LLVector2(0.5f, 0.5f); // this normally happens in xform()
*scale = projected_binormal.length();
// rotate binormal to match what planarProjection() thinks it is,
// then find rotation from that:
projected_binormal.normalize();
F32 ang = acos(projected_binormal.mV[VY]);
ang = (projected_binormal.mV[VX] < 0.f) ? -ang : ang;
//VECTORIZE THIS
LLVector3 binormal(binormal4a.getF32ptr());
LLVector3 normal(normal4a.getF32ptr());
binormal.rotVec(ang, normal);
LLQuaternion local_rot( binormal % normal, binormal, normal );
*face_rot = local_rot * vol_mat.quaternion();
*face_pos = vol_mat.getTranslation();
}
// Returns the necessary texture transform to align this face's TE to align_to's TE
bool LLFace::calcAlignedPlanarTE(const LLFace* align_to, LLVector2* res_st_offset,
LLVector2* res_st_scale, F32* res_st_rot, LLRender::eTexIndex map) const
{
if (!align_to)
{
return false;
}
const LLTextureEntry *orig_tep = align_to->getTextureEntry();
if ((orig_tep->getTexGen() != LLTextureEntry::TEX_GEN_PLANAR) ||
(getTextureEntry()->getTexGen() != LLTextureEntry::TEX_GEN_PLANAR))
{
return false;
}
F32 map_rot = 0.f, map_scaleS = 0.f, map_scaleT = 0.f, map_offsS = 0.f, map_offsT = 0.f;
switch (map)
{
case LLRender::DIFFUSE_MAP:
map_rot = orig_tep->getRotation();
map_scaleS = orig_tep->mScaleS;
map_scaleT = orig_tep->mScaleT;
map_offsS = orig_tep->mOffsetS;
map_offsT = orig_tep->mOffsetT;
break;
case LLRender::NORMAL_MAP:
if (orig_tep->getMaterialParams()->getNormalID().isNull())
{
return false;
}
map_rot = orig_tep->getMaterialParams()->getNormalRotation();
map_scaleS = orig_tep->getMaterialParams()->getNormalRepeatX();
map_scaleT = orig_tep->getMaterialParams()->getNormalRepeatY();
map_offsS = orig_tep->getMaterialParams()->getNormalOffsetX();
map_offsT = orig_tep->getMaterialParams()->getNormalOffsetY();
break;
case LLRender::SPECULAR_MAP:
if (orig_tep->getMaterialParams()->getSpecularID().isNull())
{
return false;
}
map_rot = orig_tep->getMaterialParams()->getSpecularRotation();
map_scaleS = orig_tep->getMaterialParams()->getSpecularRepeatX();
map_scaleT = orig_tep->getMaterialParams()->getSpecularRepeatY();
map_offsS = orig_tep->getMaterialParams()->getSpecularOffsetX();
map_offsT = orig_tep->getMaterialParams()->getSpecularOffsetY();
break;
default: /*make compiler happy*/
break;
}
LLVector3 orig_pos, this_pos;
LLQuaternion orig_face_rot, this_face_rot;
F32 orig_proj_scale, this_proj_scale;
align_to->getPlanarProjectedParams(&orig_face_rot, &orig_pos, &orig_proj_scale);
getPlanarProjectedParams(&this_face_rot, &this_pos, &this_proj_scale);
// The rotation of "this face's" texture:
LLQuaternion orig_st_rot = LLQuaternion(map_rot, LLVector3::z_axis) * orig_face_rot;
LLQuaternion this_st_rot = orig_st_rot * ~this_face_rot;
F32 x_ang, y_ang, z_ang;
this_st_rot.getEulerAngles(&x_ang, &y_ang, &z_ang);
*res_st_rot = z_ang;
// Offset and scale of "this face's" texture:
LLVector3 centers_dist = (this_pos - orig_pos) * ~orig_st_rot;
LLVector3 st_scale(map_scaleS, map_scaleT, 1.f);
st_scale *= orig_proj_scale;
centers_dist.scaleVec(st_scale);
LLVector2 orig_st_offset(map_offsS, map_offsT);
*res_st_offset = orig_st_offset + (LLVector2)centers_dist;
res_st_offset->mV[VX] -= (S32)res_st_offset->mV[VX];
res_st_offset->mV[VY] -= (S32)res_st_offset->mV[VY];
st_scale /= this_proj_scale;
*res_st_scale = (LLVector2)st_scale;
return true;
}
void LLFace::updateRebuildFlags()
{
if (mDrawablep->isState(LLDrawable::REBUILD_VOLUME))
{ //this rebuild is zero overhead (direct consequence of some change that affects this face)
mLastUpdateTime = gFrameTimeSeconds;
}
else
{ //this rebuild is overhead (side effect of some change that does not affect this face)
mLastMoveTime = gFrameTimeSeconds;
}
}
bool LLFace::canRenderAsMask()
{
if (LLPipeline::sNoAlpha)
{
return true;
}
const LLTextureEntry* te = getTextureEntry();
if( !te || !getViewerObject() || !getTexture() )
{
return false;
}
LLMaterial* mat = te->getMaterialParams();
if (mat && mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_BLEND)
{
return false;
}
if ((te->getColor().mV[3] == 1.0f) && // can't treat as mask if we have face alpha
(te->getGlow() == 0.f) && // glowing masks are hard to implement - don't mask
getTexture()->getIsAlphaMask()) // texture actually qualifies for masking (lazily recalculated but expensive)
{
if (LLPipeline::sRenderDeferred)
{
if (getViewerObject()->isHUDAttachment() || te->getFullbright())
{ //hud attachments and fullbright objects are NOT subject to the deferred rendering pipe
return LLPipeline::sAutoMaskAlphaNonDeferred;
}
else
{
return LLPipeline::sAutoMaskAlphaDeferred;
}
}
else
{
return LLPipeline::sAutoMaskAlphaNonDeferred;
}
}
return false;
}
//static
void LLFace::cacheFaceInVRAM(const LLVolumeFace& vf)
{
LL_PROFILE_ZONE_SCOPED;
U32 mask = LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_TEXCOORD0 |
LLVertexBuffer::MAP_TANGENT | LLVertexBuffer::MAP_NORMAL;
if (vf.mWeights)
{
mask |= LLVertexBuffer::MAP_WEIGHT4;
}
LLVertexBuffer* buff = new LLVertexBuffer(mask, GL_STATIC_DRAW_ARB);
vf.mVertexBuffer = buff;
buff->allocateBuffer(vf.mNumVertices, 0, true);
LLStrider<LLVector4a> f_vert;
LLStrider<LLVector4a> f_tangent;
LLStrider<LLVector3> f_norm;
LLStrider<LLVector2> f_tc;
buff->getTangentStrider(f_tangent);
buff->getVertexStrider(f_vert);
buff->getNormalStrider(f_norm);
buff->getTexCoord0Strider(f_tc);
for (U32 i = 0; i < vf.mNumVertices; ++i)
{
*f_vert++ = vf.mPositions[i];
*f_tangent++ = vf.mTangents[i];
*f_tc++ = vf.mTexCoords[i];
(*f_norm++).set(vf.mNormals[i].getF32ptr());
}
if (vf.mWeights)
{
LLStrider<LLVector4> f_wght;
buff->getWeight4Strider(f_wght);
for (U32 i = 0; i < vf.mNumVertices; ++i)
{
(*f_wght++).set(vf.mWeights[i].getF32ptr());
}
}
buff->flush();
}
//helper function for pushing primitives for transform shaders and cleaning up
//uninitialized data on the tail, plus tracking number of expected primitives
void push_for_transform(LLVertexBuffer* buff, U32 source_count, U32 dest_count)
{
if (source_count > 0 && dest_count >= source_count) //protect against possible U32 wrapping
{
//push source primitives
buff->drawArrays(LLRender::POINTS, 0, source_count);
U32 tail = dest_count-source_count;
for (U32 i = 0; i < tail; ++i)
{ //copy last source primitive into each element in tail
buff->drawArrays(LLRender::POINTS, source_count-1, 1);
}
gPipeline.mTransformFeedbackPrimitives += dest_count;
}
}
BOOL LLFace::getGeometryVolume(const LLVolume& volume,
const S32 &f,
const LLMatrix4& mat_vert_in, const LLMatrix3& mat_norm_in,
const U16 &index_offset,
bool force_rebuild)
{
LL_PROFILE_ZONE_SCOPED;
llassert(verify());
if (volume.getNumVolumeFaces() <= f) {
LL_WARNS() << "Attempt get volume face out of range! Total Faces: " << volume.getNumVolumeFaces() << " Attempt get access to: " << f << LL_ENDL;
return FALSE;
}
bool rigged = isState(RIGGED);
const LLVolumeFace &vf = volume.getVolumeFace(f);
S32 num_vertices = (S32)vf.mNumVertices;
S32 num_indices = (S32) vf.mNumIndices;
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCTREE))
{
updateRebuildFlags();
}
//don't use map range (generates many redundant unmap calls)
bool map_range = false; //gGLManager.mHasMapBufferRange || gGLManager.mHasFlushBufferRange;
if (mVertexBuffer.notNull())
{
if (num_indices + (S32) mIndicesIndex > mVertexBuffer->getNumIndices())
{
if (gDebugGL)
{
LL_WARNS() << "Index buffer overflow!" << LL_ENDL;
LL_WARNS() << "Indices Count: " << mIndicesCount
<< " VF Num Indices: " << num_indices
<< " Indices Index: " << mIndicesIndex
<< " VB Num Indices: " << mVertexBuffer->getNumIndices() << LL_ENDL;
LL_WARNS() << " Face Index: " << f
<< " Pool Type: " << mPoolType << LL_ENDL;
}
return FALSE;
}
if (num_vertices + mGeomIndex > mVertexBuffer->getNumVerts())
{
if (gDebugGL)
{
LL_WARNS() << "Vertex buffer overflow!" << LL_ENDL;
}
return FALSE;
}
}
LLStrider<LLVector3> vert;
LLStrider<LLVector2> tex_coords0;
LLStrider<LLVector2> tex_coords1;
LLStrider<LLVector2> tex_coords2;
LLStrider<LLVector3> norm;
LLStrider<LLColor4U> colors;
LLStrider<LLVector3> tangent;
LLStrider<U16> indicesp;
LLStrider<LLVector4> wght;
BOOL full_rebuild = force_rebuild || mDrawablep->isState(LLDrawable::REBUILD_VOLUME);
BOOL global_volume = mDrawablep->getVOVolume()->isVolumeGlobal();
LLVector3 scale;
if (global_volume)
{
scale.setVec(1,1,1);
}
else
{
scale = mVObjp->getScale();
}
bool rebuild_pos = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_POSITION);
bool rebuild_color = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_COLOR);
bool rebuild_emissive = rebuild_color && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_EMISSIVE);
bool rebuild_tcoord = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_TCOORD);
bool rebuild_normal = rebuild_pos && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_NORMAL);
bool rebuild_tangent = rebuild_pos && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TANGENT);
bool rebuild_weights = rebuild_pos && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_WEIGHT4);
const LLTextureEntry *tep = mVObjp->getTE(f);
const U8 bump_code = tep ? tep->getBumpmap() : 0;
BOOL is_static = mDrawablep->isStatic();
BOOL is_global = is_static;
LLVector3 center_sum(0.f, 0.f, 0.f);
if (is_global)
{
setState(GLOBAL);
}
else
{
clearState(GLOBAL);
}
LLColor4U color = tep->getColor();
if (rebuild_color)
{ //decide if shiny goes in alpha channel of color
if (tep &&
getPoolType() != LLDrawPool::POOL_ALPHA) // <--- alpha channel MUST contain transparency, not shiny
{
LLMaterial* mat = tep->getMaterialParams().get();
bool shiny_in_alpha = false;
if (LLPipeline::sRenderDeferred)
{ //store shiny in alpha if we don't have a specular map
if (!mat || mat->getSpecularID().isNull())
{
shiny_in_alpha = true;
}
}
else
{
if (!mat || mat->getDiffuseAlphaMode() != LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
{
shiny_in_alpha = true;
}
}
if (shiny_in_alpha)
{
static const GLfloat SHININESS_TO_ALPHA[4] =
{
0.0000f,
0.25f,
0.5f,
0.75f
};
llassert(tep->getShiny() <= 3);
color.mV[3] = U8 (SHININESS_TO_ALPHA[tep->getShiny()] * 255);
}
}
}
// INDICES
if (full_rebuild)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - indices");
mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex, mIndicesCount, map_range);
volatile __m128i* dst = (__m128i*) indicesp.get();
__m128i* src = (__m128i*) vf.mIndices;
__m128i offset = _mm_set1_epi16(index_offset);
S32 end = num_indices/8;
for (S32 i = 0; i < end; i++)
{
__m128i res = _mm_add_epi16(src[i], offset);
_mm_storeu_si128((__m128i*) dst++, res);
}
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - indices tail");
U16* idx = (U16*) dst;
for (S32 i = end*8; i < num_indices; ++i)
{
*idx++ = vf.mIndices[i]+index_offset;
}
}
if (map_range)
{
mVertexBuffer->flush();
}
}
F32 r = 0, os = 0, ot = 0, ms = 0, mt = 0, cos_ang = 0, sin_ang = 0;
bool do_xform = false;
if (rebuild_tcoord)
{
if (tep)
{
r = tep->getRotation();
os = tep->mOffsetS;
ot = tep->mOffsetT;
ms = tep->mScaleS;
mt = tep->mScaleT;
cos_ang = cos(r);
sin_ang = sin(r);
if (cos_ang != 1.f ||
sin_ang != 0.f ||
os != 0.f ||
ot != 0.f ||
ms != 1.f ||
mt != 1.f)
{
do_xform = true;
}
else
{
do_xform = false;
}
}
else
{
do_xform = false;
}
}
const LLMeshSkinInfo* skin = nullptr;
LLMatrix4a mat_vert;
LLMatrix4a mat_normal;
// prepare mat_vert
if (rebuild_pos)
{
if (rigged)
{ //override with bind shape matrix if rigged
skin = mSkinInfo;
mat_vert = skin->mBindShapeMatrix;
}
else
{
mat_vert.loadu(mat_vert_in);
}
}
if (rebuild_normal || rebuild_tangent)
{ //override mat_normal with inverse of skin->mBindShapeMatrix
LL_PROFILE_ZONE_NAMED("getGeometryVolume - norm mat override");
if (rigged)
{
if (skin == nullptr)
{
skin = mSkinInfo;
}
//TODO -- cache this (check profile marker above)?
glh::matrix4f m((F32*) skin->mBindShapeMatrix.getF32ptr());
m = m.inverse().transpose();
mat_normal.loadu(m.m);
}
else
{
mat_normal.loadu(mat_norm_in);
}
}
static LLCachedControl<bool> use_transform_feedback(gSavedSettings, "RenderUseTransformFeedback", false);
#ifdef GL_TRANSFORM_FEEDBACK_BUFFER
if (use_transform_feedback &&
mVertexBuffer->getUsage() == GL_DYNAMIC_COPY_ARB &&
gTransformPositionProgram.mProgramObject && //transform shaders are loaded
mVertexBuffer->useVBOs() && //target buffer is in VRAM
!rebuild_weights && //TODO: add support for weights
!volume.isUnique()) //source volume is NOT flexi
{ //use transform feedback to pack vertex buffer
//gGLDebugLoggingEnabled = TRUE;
LL_PROFILE_ZONE_NAMED("getGeometryVolume - transform feedback");
LLGLEnable discard(GL_RASTERIZER_DISCARD);
LLVertexBuffer* buff = (LLVertexBuffer*) vf.mVertexBuffer.get();
if (vf.mVertexBuffer.isNull() || buff->getNumVerts() != vf.mNumVertices)
{
mVObjp->getVolume()->genTangents(f);
LLFace::cacheFaceInVRAM(vf);
buff = (LLVertexBuffer*) vf.mVertexBuffer.get();
}
LLGLSLShader* cur_shader = LLGLSLShader::sCurBoundShaderPtr;
gGL.pushMatrix();
gGL.loadMatrix((GLfloat*) mat_vert_in.mMatrix);
if (rebuild_pos)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf position");
gTransformPositionProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_VERTEX, mGeomIndex, mGeomCount);
U8 index = mTextureIndex < FACE_DO_NOT_BATCH_TEXTURES ? mTextureIndex : 0;
S32 val = 0;
U8* vp = (U8*) &val;
vp[0] = index;
vp[1] = 0;
vp[2] = 0;
vp[3] = 0;
gTransformPositionProgram.uniform1i(sTextureIndexIn, val);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_VERTEX);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
if (rebuild_color)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf color");
gTransformColorProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_COLOR, mGeomIndex, mGeomCount);
S32 val = *((S32*) color.mV);
gTransformColorProgram.uniform1i(sColorIn, val);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_VERTEX);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
if (rebuild_emissive)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf emissive");
gTransformColorProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_EMISSIVE, mGeomIndex, mGeomCount);
U8 glow = (U8) llclamp((S32) (getTextureEntry()->getGlow()*255), 0, 255);
S32 glow32 = glow |
(glow << 8) |
(glow << 16) |
(glow << 24);
gTransformColorProgram.uniform1i(sColorIn, glow32);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_VERTEX);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
if (rebuild_normal)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf normal");
gTransformNormalProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_NORMAL, mGeomIndex, mGeomCount);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_NORMAL);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
if (rebuild_tangent)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf tangent");
gTransformTangentProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_TANGENT, mGeomIndex, mGeomCount);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_TANGENT);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
if (rebuild_tcoord)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tf tcoord");
gTransformTexCoordProgram.bind();
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_TEXCOORD0, mGeomIndex, mGeomCount);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_TEXCOORD0);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
bool do_bump = bump_code && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1);
if (do_bump)
{
mVertexBuffer->bindForFeedback(0, LLVertexBuffer::TYPE_TEXCOORD1, mGeomIndex, mGeomCount);
glBeginTransformFeedback(GL_POINTS);
buff->setBuffer(LLVertexBuffer::MAP_TEXCOORD0);
push_for_transform(buff, vf.mNumVertices, mGeomCount);
glEndTransformFeedback();
}
}
glBindBufferARB(GL_TRANSFORM_FEEDBACK_BUFFER, 0);
gGL.popMatrix();
if (cur_shader)
{
cur_shader->bind();
}
}
else
#endif
{
//if it's not fullbright and has no normals, bake sunlight based on face normal
//bool bake_sunlight = !getTextureEntry()->getFullbright() &&
// !mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_NORMAL);
if (rebuild_tcoord)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tcoord");
//bump setup
LLVector4a binormal_dir( -sin_ang, cos_ang, 0.f );
LLVector4a bump_s_primary_light_ray(0.f, 0.f, 0.f);
LLVector4a bump_t_primary_light_ray(0.f, 0.f, 0.f);
LLQuaternion bump_quat;
if (mDrawablep->isActive())
{
bump_quat = LLQuaternion(mDrawablep->getRenderMatrix());
}
if (bump_code)
{
mVObjp->getVolume()->genTangents(f);
F32 offset_multiple;
switch( bump_code )
{
case BE_NO_BUMP:
offset_multiple = 0.f;
break;
case BE_BRIGHTNESS:
case BE_DARKNESS:
if( mTexture[LLRender::DIFFUSE_MAP].notNull() && mTexture[LLRender::DIFFUSE_MAP]->hasGLTexture())
{
// Offset by approximately one texel
S32 cur_discard = mTexture[LLRender::DIFFUSE_MAP]->getDiscardLevel();
S32 max_size = llmax( mTexture[LLRender::DIFFUSE_MAP]->getWidth(), mTexture[LLRender::DIFFUSE_MAP]->getHeight() );
max_size <<= cur_discard;
const F32 ARTIFICIAL_OFFSET = 2.f;
offset_multiple = ARTIFICIAL_OFFSET / (F32)max_size;
}
else
{
offset_multiple = 1.f/256;
}
break;
default: // Standard bumpmap textures. Assumed to be 256x256
offset_multiple = 1.f / 256;
break;
}
F32 s_scale = 1.f;
F32 t_scale = 1.f;
if( tep )
{
tep->getScale( &s_scale, &t_scale );
}
// Use the nudged south when coming from above sun angle, such
// that emboss mapping always shows up on the upward faces of cubes when
// it's noon (since a lot of builders build with the sun forced to noon).
LLVector3 sun_ray = gSky.mVOSkyp->mBumpSunDir;
LLVector3 moon_ray = gSky.mVOSkyp->getMoon().getDirection();
LLVector3& primary_light_ray = (sun_ray.mV[VZ] > 0) ? sun_ray : moon_ray;
bump_s_primary_light_ray.load3((offset_multiple * s_scale * primary_light_ray).mV);
bump_t_primary_light_ray.load3((offset_multiple * t_scale * primary_light_ray).mV);
}
U8 texgen = getTextureEntry()->getTexGen();
if (rebuild_tcoord && texgen != LLTextureEntry::TEX_GEN_DEFAULT)
{ //planar texgen needs binormals
mVObjp->getVolume()->genTangents(f);
}
U8 tex_mode = 0;
bool tex_anim = false;
LLVOVolume* vobj = (LLVOVolume*) (LLViewerObject*) mVObjp;
tex_mode = vobj->mTexAnimMode;
if (vobj->mTextureAnimp)
{ //texture animation is in play, override specular and normal map tex coords with diffuse texcoords
tex_anim = true;
}
if (isState(TEXTURE_ANIM))
{
if (!tex_mode)
{
clearState(TEXTURE_ANIM);
}
else
{
os = ot = 0.f;
r = 0.f;
cos_ang = 1.f;
sin_ang = 0.f;
ms = mt = 1.f;
do_xform = false;
}
if (getVirtualSize() >= MIN_TEX_ANIM_SIZE) // || isState(LLFace::RIGGED))
{ //don't override texture transform during tc bake
tex_mode = 0;
}
}
LLVector4a scalea;
scalea.load3(scale.mV);
LLMaterial* mat = tep->getMaterialParams().get();
bool do_bump = bump_code && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1);
if (mat && !do_bump)
{
do_bump = mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1)
|| mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD2);
}
bool do_tex_mat = tex_mode && mTextureMatrix;
if (!do_bump)
{ //not bump mapped, might be able to do a cheap update
mVertexBuffer->getTexCoord0Strider(tex_coords0, mGeomIndex, mGeomCount);
if (texgen != LLTextureEntry::TEX_GEN_PLANAR)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - texgen");
if (!do_tex_mat)
{
if (!do_xform)
{
LL_PROFILE_ZONE_NAMED("ggv - texgen 1");
S32 tc_size = (num_vertices*2*sizeof(F32)+0xF) & ~0xF;
LLVector4a::memcpyNonAliased16((F32*) tex_coords0.get(), (F32*) vf.mTexCoords, tc_size);
}
else
{
LL_PROFILE_ZONE_NAMED("ggv - texgen 2");
F32* dst = (F32*) tex_coords0.get();
LLVector4a* src = (LLVector4a*) vf.mTexCoords;
LLVector4a trans;
trans.splat(-0.5f);
LLVector4a rot0;
rot0.set(cos_ang, -sin_ang, cos_ang, -sin_ang);
LLVector4a rot1;
rot1.set(sin_ang, cos_ang, sin_ang, cos_ang);
LLVector4a scale;
scale.set(ms, mt, ms, mt);
LLVector4a offset;
offset.set(os+0.5f, ot+0.5f, os+0.5f, ot+0.5f);
LLVector4Logical mask;
mask.clear();
mask.setElement<2>();
mask.setElement<3>();
U32 count = num_vertices/2 + num_vertices%2;
for (S32 i = 0; i < count; i++)
{
LLVector4a res = *src++;
xform4a(res, trans, mask, rot0, rot1, offset, scale);
res.store4a(dst);
dst += 4;
}
}
}
else
{ //do tex mat, no texgen, no bump
for (S32 i = 0; i < num_vertices; i++)
{
LLVector2 tc(vf.mTexCoords[i]);
LLVector3 tmp(tc.mV[0], tc.mV[1], 0.f);
tmp = tmp * *mTextureMatrix;
tc.mV[0] = tmp.mV[0];
tc.mV[1] = tmp.mV[1];
*tex_coords0++ = tc;
}
}
}
else
{ //no bump, tex gen planar
LL_PROFILE_ZONE_NAMED("getGeometryVolume - texgen planar");
if (do_tex_mat)
{
for (S32 i = 0; i < num_vertices; i++)
{
LLVector2 tc(vf.mTexCoords[i]);
LLVector4a& norm = vf.mNormals[i];
LLVector4a& center = *(vf.mCenter);
LLVector4a vec = vf.mPositions[i];
vec.mul(scalea);
planarProjection(tc, norm, center, vec);
LLVector3 tmp(tc.mV[0], tc.mV[1], 0.f);
tmp = tmp * *mTextureMatrix;
tc.mV[0] = tmp.mV[0];
tc.mV[1] = tmp.mV[1];
*tex_coords0++ = tc;
}
}
else
{
for (S32 i = 0; i < num_vertices; i++)
{
LLVector2 tc(vf.mTexCoords[i]);
LLVector4a& norm = vf.mNormals[i];
LLVector4a& center = *(vf.mCenter);
LLVector4a vec = vf.mPositions[i];
vec.mul(scalea);
planarProjection(tc, norm, center, vec);
xform(tc, cos_ang, sin_ang, os, ot, ms, mt);
*tex_coords0++ = tc;
}
}
}
if (map_range)
{
mVertexBuffer->flush();
}
}
else
{ //bump mapped or has material, just do the whole expensive loop
LL_PROFILE_ZONE_NAMED("getGeometryVolume - texgen default");
std::vector<LLVector2> bump_tc;
if (mat && !mat->getNormalID().isNull())
{ //writing out normal and specular texture coordinates, not bump offsets
do_bump = false;
}
LLStrider<LLVector2> dst;
for (U32 ch = 0; ch < 3; ++ch)
{
switch (ch)
{
case 0:
mVertexBuffer->getTexCoord0Strider(dst, mGeomIndex, mGeomCount, map_range);
break;
case 1:
if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1))
{
mVertexBuffer->getTexCoord1Strider(dst, mGeomIndex, mGeomCount, map_range);
if (mat && !tex_anim)
{
r = mat->getNormalRotation();
mat->getNormalOffset(os, ot);
mat->getNormalRepeat(ms, mt);
cos_ang = cos(r);
sin_ang = sin(r);
}
}
else
{
continue;
}
break;
case 2:
if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD2))
{
mVertexBuffer->getTexCoord2Strider(dst, mGeomIndex, mGeomCount, map_range);
if (mat && !tex_anim)
{
r = mat->getSpecularRotation();
mat->getSpecularOffset(os, ot);
mat->getSpecularRepeat(ms, mt);
cos_ang = cos(r);
sin_ang = sin(r);
}
}
else
{
continue;
}
break;
}
for (S32 i = 0; i < num_vertices; i++)
{
LLVector2 tc(vf.mTexCoords[i]);
LLVector4a& norm = vf.mNormals[i];
LLVector4a& center = *(vf.mCenter);
if (texgen != LLTextureEntry::TEX_GEN_DEFAULT)
{
LLVector4a vec = vf.mPositions[i];
vec.mul(scalea);
if (texgen == LLTextureEntry::TEX_GEN_PLANAR)
{
planarProjection(tc, norm, center, vec);
}
}
if (tex_mode && mTextureMatrix)
{
LLVector3 tmp(tc.mV[0], tc.mV[1], 0.f);
tmp = tmp * *mTextureMatrix;
tc.mV[0] = tmp.mV[0];
tc.mV[1] = tmp.mV[1];
}
else
{
xform(tc, cos_ang, sin_ang, os, ot, ms, mt);
}
*dst++ = tc;
if (do_bump)
{
bump_tc.push_back(tc);
}
}
}
if (map_range)
{
mVertexBuffer->flush();
}
if (!mat && do_bump)
{
mVertexBuffer->getTexCoord1Strider(tex_coords1, mGeomIndex, mGeomCount, map_range);
for (S32 i = 0; i < num_vertices; i++)
{
LLVector4a tangent = vf.mTangents[i];
LLVector4a binorm;
binorm.setCross3(vf.mNormals[i], tangent);
binorm.mul(tangent.getF32ptr()[3]);
LLMatrix4a tangent_to_object;
tangent_to_object.setRows(tangent, binorm, vf.mNormals[i]);
LLVector4a t;
tangent_to_object.rotate(binormal_dir, t);
LLVector4a binormal;
mat_normal.rotate(t, binormal);
//VECTORIZE THIS
if (mDrawablep->isActive())
{
LLVector3 t;
t.set(binormal.getF32ptr());
t *= bump_quat;
binormal.load3(t.mV);
}
binormal.normalize3fast();
LLVector2 tc = bump_tc[i];
tc += LLVector2( bump_s_primary_light_ray.dot3(tangent).getF32(), bump_t_primary_light_ray.dot3(binormal).getF32() );
*tex_coords1++ = tc;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
}
}
if (rebuild_pos)
{
LLVector4a* src = vf.mPositions;
//_mm_prefetch((char*)src, _MM_HINT_T0);
LLVector4a* end = src+num_vertices;
//LLVector4a* end_64 = end-4;
llassert(num_vertices > 0);
mVertexBuffer->getVertexStrider(vert, mGeomIndex, mGeomCount, map_range);
F32* dst = (F32*) vert.get();
F32* end_f32 = dst+mGeomCount*4;
//_mm_prefetch((char*)dst, _MM_HINT_NTA);
//_mm_prefetch((char*)src, _MM_HINT_NTA);
//_mm_prefetch((char*)dst, _MM_HINT_NTA);
LLVector4a res0; //,res1,res2,res3;
LLVector4a texIdx;
S32 index = mTextureIndex < FACE_DO_NOT_BATCH_TEXTURES ? mTextureIndex : 0;
F32 val = 0.f;
S32* vp = (S32*) &val;
*vp = index;
llassert(index <= LLGLSLShader::sIndexedTextureChannels-1);
LLVector4Logical mask;
mask.clear();
mask.setElement<3>();
texIdx.set(0,0,0,val);
LLVector4a tmp;
while (src < end)
{
mat_vert.affineTransform(*src++, res0);
tmp.setSelectWithMask(mask, texIdx, res0);
tmp.store4a((F32*) dst);
dst += 4;
}
while (dst < end_f32)
{
res0.store4a((F32*) dst);
dst += 4;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
if (rebuild_normal)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - normal");
mVertexBuffer->getNormalStrider(norm, mGeomIndex, mGeomCount, map_range);
F32* normals = (F32*) norm.get();
LLVector4a* src = vf.mNormals;
LLVector4a* end = src+num_vertices;
while (src < end)
{
LLVector4a normal;
mat_normal.rotate(*src++, normal);
normal.store4a(normals);
normals += 4;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
if (rebuild_tangent)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - tangent");
mVertexBuffer->getTangentStrider(tangent, mGeomIndex, mGeomCount, map_range);
F32* tangents = (F32*) tangent.get();
mVObjp->getVolume()->genTangents(f);
LLVector4Logical mask;
mask.clear();
mask.setElement<3>();
LLVector4a* src = vf.mTangents;
LLVector4a* end = vf.mTangents+num_vertices;
while (src < end)
{
LLVector4a tangent_out;
mat_normal.rotate(*src, tangent_out);
tangent_out.normalize3fast();
tangent_out.setSelectWithMask(mask, *src, tangent_out);
tangent_out.store4a(tangents);
src++;
tangents += 4;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
if (rebuild_weights && vf.mWeights)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - weight");
mVertexBuffer->getWeight4Strider(wght, mGeomIndex, mGeomCount, map_range);
F32* weights = (F32*) wght.get();
LLVector4a::memcpyNonAliased16(weights, (F32*) vf.mWeights, num_vertices*4*sizeof(F32));
if (map_range)
{
mVertexBuffer->flush();
}
}
if (rebuild_color && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_COLOR) )
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - color");
mVertexBuffer->getColorStrider(colors, mGeomIndex, mGeomCount, map_range);
LLVector4a src;
U32 vec[4];
vec[0] = vec[1] = vec[2] = vec[3] = color.asRGBA();
src.loadua((F32*) vec);
F32* dst = (F32*) colors.get();
S32 num_vecs = num_vertices/4;
if (num_vertices%4 > 0)
{
++num_vecs;
}
for (S32 i = 0; i < num_vecs; i++)
{
src.store4a(dst);
dst += 4;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
if (rebuild_emissive)
{
LL_PROFILE_ZONE_NAMED("getGeometryVolume - emissive");
LLStrider<LLColor4U> emissive;
mVertexBuffer->getEmissiveStrider(emissive, mGeomIndex, mGeomCount, map_range);
U8 glow = (U8) llclamp((S32) (getTextureEntry()->getGlow()*255), 0, 255);
LLVector4a src;
LLColor4U glow4u = LLColor4U(0,0,0,glow);
U32 glow32 = glow4u.asRGBA();
U32 vec[4];
vec[0] = vec[1] = vec[2] = vec[3] = glow32;
src.loadua((F32*) vec);
F32* dst = (F32*) emissive.get();
S32 num_vecs = num_vertices/4;
if (num_vertices%4 > 0)
{
++num_vecs;
}
for (S32 i = 0; i < num_vecs; i++)
{
src.store4a(dst);
dst += 4;
}
if (map_range)
{
mVertexBuffer->flush();
}
}
}
if (rebuild_tcoord)
{
mTexExtents[0].setVec(0,0);
mTexExtents[1].setVec(1,1);
xform(mTexExtents[0], cos_ang, sin_ang, os, ot, ms, mt);
xform(mTexExtents[1], cos_ang, sin_ang, os, ot, ms, mt);
F32 es = vf.mTexCoordExtents[1].mV[0] - vf.mTexCoordExtents[0].mV[0] ;
F32 et = vf.mTexCoordExtents[1].mV[1] - vf.mTexCoordExtents[0].mV[1] ;
mTexExtents[0][0] *= es ;
mTexExtents[1][0] *= es ;
mTexExtents[0][1] *= et ;
mTexExtents[1][1] *= et ;
}
return TRUE;
}
//check if the face has a media
BOOL LLFace::hasMedia() const
{
if(mHasMedia)
{
return TRUE ;
}
if(mTexture[LLRender::DIFFUSE_MAP].notNull())
{
return mTexture[LLRender::DIFFUSE_MAP]->hasParcelMedia() ; //if has a parcel media
}
return FALSE ; //no media.
}
const F32 LEAST_IMPORTANCE = 0.05f ;
const F32 LEAST_IMPORTANCE_FOR_LARGE_IMAGE = 0.3f ;
void LLFace::resetVirtualSize()
{
setVirtualSize(0.f);
mImportanceToCamera = 0.f;
}
F32 LLFace::getTextureVirtualSize()
{
F32 radius;
F32 cos_angle_to_view_dir;
BOOL in_frustum = calcPixelArea(cos_angle_to_view_dir, radius);
if (mPixelArea < F_ALMOST_ZERO || !in_frustum)
{
setVirtualSize(0.f) ;
return 0.f;
}
//get area of circle in texture space
LLVector2 tdim = mTexExtents[1] - mTexExtents[0];
F32 texel_area = (tdim * 0.5f).lengthSquared()*3.14159f;
if (texel_area <= 0)
{
// Probably animated, use default
texel_area = 1.f;
}
F32 face_area;
if (mVObjp->isSculpted() && texel_area > 1.f)
{
//sculpts can break assumptions about texel area
face_area = mPixelArea;
}
else
{
//apply texel area to face area to get accurate ratio
//face_area /= llclamp(texel_area, 1.f/64.f, 16.f);
face_area = mPixelArea / llclamp(texel_area, 0.015625f, 128.f);
}
face_area = LLFace::adjustPixelArea(mImportanceToCamera, face_area) ;
if(face_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
{
if(mImportanceToCamera > LEAST_IMPORTANCE_FOR_LARGE_IMAGE && mTexture[LLRender::DIFFUSE_MAP].notNull() && mTexture[LLRender::DIFFUSE_MAP]->isLargeImage())
{
face_area *= adjustPartialOverlapPixelArea(cos_angle_to_view_dir, radius );
}
}
setVirtualSize(face_area) ;
return face_area;
}
BOOL LLFace::calcPixelArea(F32& cos_angle_to_view_dir, F32& radius)
{
LL_PROFILE_ZONE_SCOPED
//VECTORIZE THIS
//get area of circle around face
LLVector4a center;
center.load3(getPositionAgent().mV);
LLVector4a size;
size.setSub(mExtents[1], mExtents[0]);
size.mul(0.5f);
LLViewerCamera* camera = LLViewerCamera::getInstance();
F32 size_squared = size.dot3(size).getF32();
LLVector4a lookAt;
LLVector4a t;
t.load3(camera->getOrigin().mV);
lookAt.setSub(center, t);
F32 dist = lookAt.getLength3().getF32();
dist = llmax(dist-size.getLength3().getF32(), 0.001f);
//ramp down distance for nearby objects
if (dist < 16.f)
{
dist /= 16.f;
dist *= dist;
dist *= 16.f;
}
lookAt.normalize3fast() ;
//get area of circle around node
F32 app_angle = atanf((F32) sqrt(size_squared) / dist);
radius = app_angle*LLDrawable::sCurPixelAngle;
mPixelArea = radius*radius * 3.14159f;
LLVector4a x_axis;
x_axis.load3(camera->getXAxis().mV);
cos_angle_to_view_dir = lookAt.dot3(x_axis).getF32();
//if has media, check if the face is out of the view frustum.
if(hasMedia())
{
if(!camera->AABBInFrustum(center, size))
{
mImportanceToCamera = 0.f ;
return false ;
}
if(cos_angle_to_view_dir > camera->getCosHalfFov()) //the center is within the view frustum
{
cos_angle_to_view_dir = 1.0f ;
}
else
{
LLVector4a d;
d.setSub(lookAt, x_axis);
if(dist * dist * d.dot3(d) < size_squared)
{
cos_angle_to_view_dir = 1.0f ;
}
}
}
if(dist < mBoundingSphereRadius) //camera is very close
{
cos_angle_to_view_dir = 1.0f ;
mImportanceToCamera = 1.0f ;
}
else
{
mImportanceToCamera = LLFace::calcImportanceToCamera(cos_angle_to_view_dir, dist) ;
}
return true ;
}
//the projection of the face partially overlaps with the screen
F32 LLFace::adjustPartialOverlapPixelArea(F32 cos_angle_to_view_dir, F32 radius )
{
F32 screen_radius = (F32)llmax(gViewerWindow->getWindowWidthRaw(), gViewerWindow->getWindowHeightRaw()) ;
F32 center_angle = acosf(cos_angle_to_view_dir) ;
F32 d = center_angle * LLDrawable::sCurPixelAngle ;
if(d + radius > screen_radius + 5.f)
{
//----------------------------------------------
//calculate the intersection area of two circles
//F32 radius_square = radius * radius ;
//F32 d_square = d * d ;
//F32 screen_radius_square = screen_radius * screen_radius ;
//face_area =
// radius_square * acosf((d_square + radius_square - screen_radius_square)/(2 * d * radius)) +
// screen_radius_square * acosf((d_square + screen_radius_square - radius_square)/(2 * d * screen_radius)) -
// 0.5f * sqrtf((-d + radius + screen_radius) * (d + radius - screen_radius) * (d - radius + screen_radius) * (d + radius + screen_radius)) ;
//----------------------------------------------
//the above calculation is too expensive
//the below is a good estimation: bounding box of the bounding sphere:
F32 alpha = 0.5f * (radius + screen_radius - d) / radius ;
alpha = llclamp(alpha, 0.f, 1.f) ;
return alpha * alpha ;
}
return 1.0f ;
}
const S8 FACE_IMPORTANCE_LEVEL = 4 ;
const F32 FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[FACE_IMPORTANCE_LEVEL][2] = //{distance, importance_weight}
{{16.1f, 1.0f}, {32.1f, 0.5f}, {48.1f, 0.2f}, {96.1f, 0.05f} } ;
const F32 FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[FACE_IMPORTANCE_LEVEL][2] = //{cos(angle), importance_weight}
{{0.985f /*cos(10 degrees)*/, 1.0f}, {0.94f /*cos(20 degrees)*/, 0.8f}, {0.866f /*cos(30 degrees)*/, 0.64f}, {0.0f, 0.36f}} ;
//static
F32 LLFace::calcImportanceToCamera(F32 cos_angle_to_view_dir, F32 dist)
{
F32 importance = 0.f ;
if(cos_angle_to_view_dir > LLViewerCamera::getInstance()->getCosHalfFov() &&
dist < FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[FACE_IMPORTANCE_LEVEL - 1][0])
{
LLViewerCamera* camera = LLViewerCamera::getInstance();
F32 camera_moving_speed = camera->getAverageSpeed() ;
F32 camera_angular_speed = camera->getAverageAngularSpeed();
if(camera_moving_speed > 10.0f || camera_angular_speed > 1.0f)
{
//if camera moves or rotates too fast, ignore the importance factor
return 0.f ;
}
S32 i = 0 ;
for(i = 0; i < FACE_IMPORTANCE_LEVEL && dist > FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[i][0]; ++i);
i = llmin(i, FACE_IMPORTANCE_LEVEL - 1) ;
F32 dist_factor = FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[i][1] ;
for(i = 0; i < FACE_IMPORTANCE_LEVEL && cos_angle_to_view_dir < FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[i][0] ; ++i) ;
i = llmin(i, FACE_IMPORTANCE_LEVEL - 1) ;
importance = dist_factor * FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[i][1] ;
}
return importance ;
}
//static
F32 LLFace::adjustPixelArea(F32 importance, F32 pixel_area)
{
if(pixel_area > LLViewerTexture::sMaxSmallImageSize)
{
if(importance < LEAST_IMPORTANCE) //if the face is not important, do not load hi-res.
{
static const F32 MAX_LEAST_IMPORTANCE_IMAGE_SIZE = 128.0f * 128.0f ;
pixel_area = llmin(pixel_area * 0.5f, MAX_LEAST_IMPORTANCE_IMAGE_SIZE) ;
}
else if(pixel_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
{
if(importance < LEAST_IMPORTANCE_FOR_LARGE_IMAGE)//if the face is not important, do not load hi-res.
{
pixel_area = LLViewerTexture::sMinLargeImageSize ;
}
}
}
return pixel_area ;
}
BOOL LLFace::verify(const U32* indices_array) const
{
BOOL ok = TRUE;
if( mVertexBuffer.isNull() )
{ //no vertex buffer, face is implicitly valid
return TRUE;
}
// First, check whether the face data fits within the pool's range.
if ((mGeomIndex + mGeomCount) > mVertexBuffer->getNumVerts())
{
ok = FALSE;
LL_INFOS() << "Face references invalid vertices!" << LL_ENDL;
}
S32 indices_count = (S32)getIndicesCount();
if (!indices_count)
{
return TRUE;
}
if (indices_count > LL_MAX_INDICES_COUNT)
{
ok = FALSE;
LL_INFOS() << "Face has bogus indices count" << LL_ENDL;
}
if (mIndicesIndex + mIndicesCount > mVertexBuffer->getNumIndices())
{
ok = FALSE;
LL_INFOS() << "Face references invalid indices!" << LL_ENDL;
}
#if 0
S32 geom_start = getGeomStart();
S32 geom_count = mGeomCount;
const U32 *indicesp = indices_array ? indices_array + mIndicesIndex : getRawIndices();
for (S32 i = 0; i < indices_count; i++)
{
S32 delta = indicesp[i] - geom_start;
if (0 > delta)
{
LL_WARNS() << "Face index too low!" << LL_ENDL;
LL_INFOS() << "i:" << i << " Index:" << indicesp[i] << " GStart: " << geom_start << LL_ENDL;
ok = FALSE;
}
else if (delta >= geom_count)
{
LL_WARNS() << "Face index too high!" << LL_ENDL;
LL_INFOS() << "i:" << i << " Index:" << indicesp[i] << " GEnd: " << geom_start + geom_count << LL_ENDL;
ok = FALSE;
}
}
#endif
if (!ok)
{
printDebugInfo();
}
return ok;
}
void LLFace::setViewerObject(LLViewerObject* objp)
{
mVObjp = objp;
}
const LLColor4& LLFace::getRenderColor() const
{
if (isState(USE_FACE_COLOR))
{
return mFaceColor; // Face Color
}
else
{
const LLTextureEntry* tep = getTextureEntry();
return (tep ? tep->getColor() : LLColor4::white);
}
}
void LLFace::renderSetColor() const
{
if (!LLFacePool::LLOverrideFaceColor::sOverrideFaceColor)
{
const LLColor4* color = &(getRenderColor());
gGL.diffuseColor4fv(color->mV);
}
}
S32 LLFace::pushVertices(const U16* index_array) const
{
if (mIndicesCount)
{
U32 render_type = LLRender::TRIANGLES;
if (mDrawInfo)
{
render_type = mDrawInfo->mDrawMode;
}
mVertexBuffer->drawRange(render_type, mGeomIndex, mGeomIndex+mGeomCount-1, mIndicesCount, mIndicesIndex);
gPipeline.addTrianglesDrawn(mIndicesCount, render_type);
}
return mIndicesCount;
}
const LLMatrix4& LLFace::getRenderMatrix() const
{
return mDrawablep->getRenderMatrix();
}
S32 LLFace::renderElements(const U16 *index_array) const
{
LL_PROFILE_ZONE_SCOPED
S32 ret = 0;
if (isState(GLOBAL))
{
ret = pushVertices(index_array);
}
else
{
gGL.pushMatrix();
gGL.multMatrix((float*)getRenderMatrix().mMatrix);
ret = pushVertices(index_array);
gGL.popMatrix();
}
return ret;
}
S32 LLFace::renderIndexed()
{
LL_PROFILE_ZONE_SCOPED
if(mDrawablep == NULL || mDrawPoolp == NULL)
{
return 0;
}
return renderIndexed(mDrawPoolp->getVertexDataMask());
}
S32 LLFace::renderIndexed(U32 mask)
{
LL_PROFILE_ZONE_SCOPED
if (mVertexBuffer.isNull())
{
return 0;
}
mVertexBuffer->setBuffer(mask);
U16* index_array = (U16*) mVertexBuffer->getIndicesPointer();
return renderElements(index_array);
}
//============================================================================
// From llface.inl
S32 LLFace::getColors(LLStrider<LLColor4U> &colors)
{
if (!mGeomCount)
{
return -1;
}
// llassert(mGeomIndex >= 0);
mVertexBuffer->getColorStrider(colors, mGeomIndex, mGeomCount);
return mGeomIndex;
}
S32 LLFace::getIndices(LLStrider<U16> &indicesp)
{
mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex, mIndicesCount);
llassert(indicesp[0] != indicesp[1]);
return mIndicesIndex;
}
LLVector3 LLFace::getPositionAgent() const
{
if (mDrawablep->isStatic())
{
return mCenterAgent;
}
else
{
return mCenterLocal * getRenderMatrix();
}
}
LLViewerTexture* LLFace::getTexture(U32 ch) const
{
llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
return mTexture[ch] ;
}
void LLFace::setVertexBuffer(LLVertexBuffer* buffer)
{
if (buffer)
{
LLSculptIDSize::instance().inc(mDrawablep, buffer->getSize() + buffer->getIndicesSize());
}
if (mVertexBuffer)
{
LLSculptIDSize::instance().dec(mDrawablep);
}
mVertexBuffer = buffer;
llassert(verify());
}
void LLFace::clearVertexBuffer()
{
if (mVertexBuffer)
{
LLSculptIDSize::instance().dec(mDrawablep);
}
mVertexBuffer = NULL;
}
S32 LLFace::getRiggedIndex(U32 type) const
{
if (mRiggedIndex.empty())
{
return -1;
}
llassert(type < mRiggedIndex.size());
return mRiggedIndex[type];
}
U64 LLFace::getSkinHash()
{
return mSkinInfo ? mSkinInfo->mHash : 0;
}
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