273 lines
6.5 KiB
C++
273 lines
6.5 KiB
C++
/**
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* @file lldrawpooltree.cpp
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* @brief LLDrawPoolTree class implementation
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*
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* Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
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* $License$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "lldrawpooltree.h"
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#include "lldrawable.h"
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#include "llface.h"
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#include "llsky.h"
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#include "llviewerwindow.h"
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#include "llvotree.h"
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#include "pipeline.h"
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#include "llviewercamera.h"
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#include "llglslshader.h"
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S32 LLDrawPoolTree::sDiffTex = 0;
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LLDrawPoolTree::LLDrawPoolTree(LLViewerImage *texturep) :
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LLFacePool(POOL_TREE),
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mTexturep(texturep)
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{
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mTexturep->bind(0);
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mTexturep->setClamp(FALSE, FALSE);
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}
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LLDrawPool *LLDrawPoolTree::instancePool()
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{
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return new LLDrawPoolTree(mTexturep);
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}
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void LLDrawPoolTree::prerender()
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{
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mVertexShaderLevel = 0;
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}
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void LLDrawPoolTree::beginRenderPass(S32 pass)
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{
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnableClientState(GL_NORMAL_ARRAY);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glAlphaFunc(GL_GREATER, 0.5f);
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}
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void LLDrawPoolTree::render(S32 pass)
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{
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LLFastTimer t(LLFastTimer::FTM_RENDER_TREES);
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if (mDrawFace.empty())
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{
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return;
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}
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gPipeline.enableLightsDynamic(1.f);
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LLGLSPipelineAlpha gls_pipeline_alpha;
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LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
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renderTree();
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}
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void LLDrawPoolTree::endRenderPass(S32 pass)
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{
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glAlphaFunc(GL_GREATER, 0.01f);
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glDisableClientState(GL_NORMAL_ARRAY);
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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}
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void LLDrawPoolTree::renderForSelect()
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{
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if (mDrawFace.empty())
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{
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return;
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}
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glEnableClientState (GL_VERTEX_ARRAY);
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glEnableClientState (GL_TEXTURE_COORD_ARRAY);
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LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
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LLGLSObjectSelectAlpha gls_alpha;
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glBlendFunc(GL_ONE, GL_ZERO);
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glAlphaFunc(GL_GREATER, 0.5f);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_MODULATE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, GL_PRIMARY_COLOR_ARB);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, GL_SRC_ALPHA);
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renderTree(TRUE);
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glAlphaFunc(GL_GREATER, 0.01f);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glDisableClientState (GL_TEXTURE_COORD_ARRAY);
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}
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void LLDrawPoolTree::renderTree(BOOL selecting)
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{
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LLGLState normalize(GL_NORMALIZE, TRUE);
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// Bind the texture for this tree.
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LLViewerImage::bindTexture(mTexturep,sDiffTex);
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if (mTexturep)
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{
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if (mTexturep->getClampS()) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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}
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if (mTexturep->getClampT()) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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}
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}
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U32 indices_drawn = 0;
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glMatrixMode(GL_MODELVIEW);
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for (std::vector<LLFace*>::iterator iter = mDrawFace.begin();
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iter != mDrawFace.end(); iter++)
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{
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LLFace *face = *iter;
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LLDrawable *drawablep = face->getDrawable();
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if (drawablep->isDead() || face->mVertexBuffer.isNull())
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{
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continue;
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}
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face->mVertexBuffer->setBuffer(LLDrawPoolTree::VERTEX_DATA_MASK);
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U32* indicesp = (U32*) face->mVertexBuffer->getIndicesPointer();
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// Render each of the trees
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LLVOTree *treep = (LLVOTree *)drawablep->getVObj();
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LLColor4U color(255,255,255,255);
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if (!selecting || treep->mGLName != 0)
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{
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if (selecting)
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{
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S32 name = treep->mGLName;
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color = LLColor4U((U8)(name >> 16), (U8)(name >> 8), (U8)name, 255);
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}
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glPushMatrix();
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// Translate to tree base HACK - adjustment in Z plants tree underground
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const LLVector3 &pos_agent = treep->getPositionAgent();
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glTranslatef(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
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// Rotate to tree position
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F32 angle_radians, x, y, z;
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treep->getRotation().getAngleAxis(&angle_radians, &x, &y, &z);
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glRotatef(angle_radians * RAD_TO_DEG, x, y, z);
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// Rotate and bend for current trunk/wind
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// Note that trunk stiffness controls the amount of bend at the trunk as
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// opposed to the crown of the tree
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//
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glRotatef(90.f, 0, 0, 1);
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const F32 TRUNK_STIFF = 22.f;
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glRotatef(treep->mTrunkBend.magVec()*TRUNK_STIFF, treep->mTrunkBend.mV[VX], treep->mTrunkBend.mV[VY], 0);
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F32 radius = treep->getScale().magVec()*0.5f;
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radius *= 0.1f;
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glScalef(radius, radius, radius);
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const F32 THRESH_ANGLE_FOR_BILLBOARD = 15.f;
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const F32 BLEND_RANGE_FOR_BILLBOARD = 3.f;
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F32 droop = treep->mDroop + 25.f*(1.f - treep->mTrunkBend.magVec());
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S32 stop_depth = 0;
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F32 app_angle = treep->getAppAngle()*LLVOTree::sTreeFactor;
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F32 alpha = 1.0;
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S32 trunk_LOD = 0;
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for (S32 j = 0; j < 4; j++)
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{
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if (app_angle > LLVOTree::sLODAngles[j])
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{
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trunk_LOD = j;
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break;
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}
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}
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if (app_angle < (THRESH_ANGLE_FOR_BILLBOARD - BLEND_RANGE_FOR_BILLBOARD))
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{
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//
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// Draw only the billboard
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//
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// Only the billboard, can use closer to normal alpha func.
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stop_depth = -1;
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LLFacePool::LLOverrideFaceColor clr(this, color);
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indices_drawn += treep->drawBranchPipeline(indicesp, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
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}
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else // if (app_angle > (THRESH_ANGLE_FOR_BILLBOARD + BLEND_RANGE_FOR_BILLBOARD))
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{
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//
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// Draw only the full geometry tree
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//
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//stop_depth = (app_angle < THRESH_ANGLE_FOR_RECURSION_REDUCTION);
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LLFacePool::LLOverrideFaceColor clr(this, color);
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indices_drawn += treep->drawBranchPipeline(indicesp, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
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}
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glPopMatrix();
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}
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}
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if (mTexturep)
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{
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if (mTexturep->getClampS()) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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}
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if (mTexturep->getClampT()) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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}
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}
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addIndicesDrawn(indices_drawn);
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}
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BOOL LLDrawPoolTree::verify() const
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{
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/* BOOL ok = TRUE;
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if (!ok)
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{
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printDebugInfo();
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}
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return ok;*/
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return TRUE;
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}
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LLViewerImage *LLDrawPoolTree::getTexture()
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{
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return mTexturep;
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}
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LLViewerImage *LLDrawPoolTree::getDebugTexture()
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{
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return mTexturep;
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}
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LLColor3 LLDrawPoolTree::getDebugColor() const
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{
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return LLColor3(1.f, 0.f, 1.f);
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}
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S32 LLDrawPoolTree::getMaterialAttribIndex()
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{
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return gObjectSimpleProgram.mAttribute[LLShaderMgr::MATERIAL_COLOR];
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}
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