548 lines
15 KiB
C++
548 lines
15 KiB
C++
/**
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* @file llviewerjoint.cpp
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* @brief Implementation of LLViewerJoint class
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2007, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlife.com/developers/opensource/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at http://secondlife.com/developers/opensource/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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//-----------------------------------------------------------------------------
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// Header Files
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//-----------------------------------------------------------------------------
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#include "llviewerprecompiledheaders.h"
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#include "llviewerjoint.h"
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#include "llgl.h"
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#include "llglimmediate.h"
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#include "llmath.h"
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#include "llglheaders.h"
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#include "llrendersphere.h"
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#include "llvoavatar.h"
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#include "pipeline.h"
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#define DEFAULT_LOD 0.0f
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const S32 MIN_PIXEL_AREA_3PASS_HAIR = 64*64;
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//-----------------------------------------------------------------------------
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// Static Data
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//-----------------------------------------------------------------------------
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BOOL LLViewerJoint::sDisableLOD = FALSE;
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//-----------------------------------------------------------------------------
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// LLViewerJoint()
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// Class Constructor
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//-----------------------------------------------------------------------------
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LLViewerJoint::LLViewerJoint()
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{
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mUpdateXform = TRUE;
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mValid = FALSE;
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mComponents = SC_JOINT | SC_BONE | SC_AXES;
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mMinPixelArea = DEFAULT_LOD;
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mPickName = PN_DEFAULT;
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mVisible = TRUE;
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}
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//-----------------------------------------------------------------------------
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// LLViewerJoint()
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// Class Constructor
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//-----------------------------------------------------------------------------
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LLViewerJoint::LLViewerJoint(const std::string &name, LLJoint *parent) :
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LLJoint(name, parent)
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{
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mValid = FALSE;
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mComponents = SC_JOINT | SC_BONE | SC_AXES;
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mMinPixelArea = DEFAULT_LOD;
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mPickName = PN_DEFAULT;
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}
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//-----------------------------------------------------------------------------
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// ~LLViewerJoint()
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// Class Destructor
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//-----------------------------------------------------------------------------
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LLViewerJoint::~LLViewerJoint()
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{
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}
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//--------------------------------------------------------------------
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// setValid()
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//--------------------------------------------------------------------
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void LLViewerJoint::setValid( BOOL valid, BOOL recursive )
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{
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//----------------------------------------------------------------
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// set visibility for this joint
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//----------------------------------------------------------------
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mValid = valid;
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//----------------------------------------------------------------
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// set visibility for children
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//----------------------------------------------------------------
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if (recursive)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->setValid(valid, TRUE);
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}
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}
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}
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//--------------------------------------------------------------------
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// renderSkeleton()
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//--------------------------------------------------------------------
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void LLViewerJoint::renderSkeleton(BOOL recursive)
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{
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F32 nc = 0.57735f;
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//----------------------------------------------------------------
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// push matrix stack
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//----------------------------------------------------------------
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glPushMatrix();
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//----------------------------------------------------------------
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// render the bone to my parent
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//----------------------------------------------------------------
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if (mComponents & SC_BONE)
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{
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drawBone();
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}
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//----------------------------------------------------------------
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// offset to joint position and
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// rotate to our orientation
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//----------------------------------------------------------------
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glLoadIdentity();
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glMultMatrixf( &getWorldMatrix().mMatrix[0][0] );
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//----------------------------------------------------------------
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// render joint axes
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//----------------------------------------------------------------
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if (mComponents & SC_AXES)
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{
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gGL.begin(LLVertexBuffer::LINES);
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gGL.color3f( 1.0f, 0.0f, 0.0f );
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gGL.vertex3f( 0.0f, 0.0f, 0.0f );
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gGL.vertex3f( 0.1f, 0.0f, 0.0f );
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gGL.color3f( 0.0f, 1.0f, 0.0f );
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gGL.vertex3f( 0.0f, 0.0f, 0.0f );
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gGL.vertex3f( 0.0f, 0.1f, 0.0f );
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gGL.color3f( 0.0f, 0.0f, 1.0f );
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gGL.vertex3f( 0.0f, 0.0f, 0.0f );
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gGL.vertex3f( 0.0f, 0.0f, 0.1f );
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gGL.end();
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}
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//----------------------------------------------------------------
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// render the joint graphic
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//----------------------------------------------------------------
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if (mComponents & SC_JOINT)
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{
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gGL.color3f( 1.0f, 1.0f, 0.0f );
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gGL.begin(LLVertexBuffer::TRIANGLES);
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// joint top half
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glNormal3f(nc, nc, nc);
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gGL.vertex3f(0.0f, 0.0f, 0.05f);
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gGL.vertex3f(0.05f, 0.0f, 0.0f);
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gGL.vertex3f(0.0f, 0.05f, 0.0f);
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glNormal3f(-nc, nc, nc);
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gGL.vertex3f(0.0f, 0.0f, 0.05f);
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gGL.vertex3f(0.0f, 0.05f, 0.0f);
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gGL.vertex3f(-0.05f, 0.0f, 0.0f);
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glNormal3f(-nc, -nc, nc);
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gGL.vertex3f(0.0f, 0.0f, 0.05f);
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gGL.vertex3f(-0.05f, 0.0f, 0.0f);
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gGL.vertex3f(0.0f, -0.05f, 0.0f);
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glNormal3f(nc, -nc, nc);
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gGL.vertex3f(0.0f, 0.0f, 0.05f);
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gGL.vertex3f(0.0f, -0.05f, 0.0f);
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gGL.vertex3f(0.05f, 0.0f, 0.0f);
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// joint bottom half
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glNormal3f(nc, nc, -nc);
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gGL.vertex3f(0.0f, 0.0f, -0.05f);
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gGL.vertex3f(0.0f, 0.05f, 0.0f);
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gGL.vertex3f(0.05f, 0.0f, 0.0f);
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glNormal3f(-nc, nc, -nc);
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gGL.vertex3f(0.0f, 0.0f, -0.05f);
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gGL.vertex3f(-0.05f, 0.0f, 0.0f);
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gGL.vertex3f(0.0f, 0.05f, 0.0f);
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glNormal3f(-nc, -nc, -nc);
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gGL.vertex3f(0.0f, 0.0f, -0.05f);
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gGL.vertex3f(0.0f, -0.05f, 0.0f);
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gGL.vertex3f(-0.05f, 0.0f, 0.0f);
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glNormal3f(nc, -nc, -nc);
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gGL.vertex3f(0.0f, 0.0f, -0.05f);
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gGL.vertex3f(0.05f, 0.0f, 0.0f);
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gGL.vertex3f(0.0f, -0.05f, 0.0f);
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gGL.end();
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}
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//----------------------------------------------------------------
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// render children
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//----------------------------------------------------------------
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if (recursive)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->renderSkeleton();
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}
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}
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//----------------------------------------------------------------
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// pop matrix stack
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//----------------------------------------------------------------
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glPopMatrix();
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}
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//--------------------------------------------------------------------
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// render()
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//--------------------------------------------------------------------
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U32 LLViewerJoint::render( F32 pixelArea, BOOL first_pass )
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{
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U32 triangle_count = 0;
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//----------------------------------------------------------------
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// ignore invisible objects
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//----------------------------------------------------------------
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if ( mValid )
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{
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//----------------------------------------------------------------
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// if object is transparent, defer it, otherwise
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// give the joint subclass a chance to draw itself
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//----------------------------------------------------------------
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if ( gRenderForSelect )
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{
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triangle_count += drawShape( pixelArea, first_pass );
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}
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else if ( isTransparent() && !LLPipeline::sReflectionRender)
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{
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// Hair and Skirt
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if ((pixelArea > MIN_PIXEL_AREA_3PASS_HAIR))
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{
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// render all three passes
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LLGLDisable cull(GL_CULL_FACE);
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// first pass renders without writing to the z buffer
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{
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LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
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triangle_count += drawShape( pixelArea, first_pass);
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}
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// second pass writes to z buffer only
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glColorMask(FALSE, FALSE, FALSE, FALSE);
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{
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triangle_count += drawShape( pixelArea, FALSE );
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}
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// third past respects z buffer and writes color
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glColorMask(TRUE, TRUE, TRUE, FALSE);
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{
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LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
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triangle_count += drawShape( pixelArea, FALSE );
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}
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}
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else
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{
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// Render Inside (no Z buffer write)
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glCullFace(GL_FRONT);
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{
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LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
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triangle_count += drawShape( pixelArea, first_pass );
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}
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// Render Outside (write to the Z buffer)
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glCullFace(GL_BACK);
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{
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triangle_count += drawShape( pixelArea, FALSE );
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}
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}
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}
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else
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{
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// set up render state
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triangle_count += drawShape( pixelArea, first_pass );
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}
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}
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//----------------------------------------------------------------
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// render children
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//----------------------------------------------------------------
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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F32 jointLOD = joint->getLOD();
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if (pixelArea >= jointLOD || sDisableLOD)
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{
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triangle_count += joint->render( pixelArea );
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if (jointLOD != DEFAULT_LOD)
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{
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break;
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}
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}
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}
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return triangle_count;
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}
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//--------------------------------------------------------------------
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// drawBone()
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//--------------------------------------------------------------------
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void LLViewerJoint::drawBone()
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{
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if ( mParent == NULL )
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return;
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F32 boneSize = 0.02f;
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// rotate to point to child (bone direction)
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glPushMatrix();
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LLVector3 boneX = getPosition();
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F32 length = boneX.normVec();
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LLVector3 boneZ(1.0f, 0.0f, 1.0f);
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LLVector3 boneY = boneZ % boneX;
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boneY.normVec();
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boneZ = boneX % boneY;
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LLMatrix4 rotateMat;
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rotateMat.setFwdRow( boneX );
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rotateMat.setLeftRow( boneY );
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rotateMat.setUpRow( boneZ );
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glMultMatrixf( &rotateMat.mMatrix[0][0] );
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// render the bone
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gGL.color3f( 0.5f, 0.5f, 0.0f );
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gGL.begin(LLVertexBuffer::TRIANGLES);
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gGL.vertex3f( length, 0.0f, 0.0f);
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gGL.vertex3f( 0.0f, boneSize, 0.0f);
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gGL.vertex3f( 0.0f, 0.0f, boneSize);
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gGL.vertex3f( length, 0.0f, 0.0f);
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gGL.vertex3f( 0.0f, 0.0f, -boneSize);
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gGL.vertex3f( 0.0f, boneSize, 0.0f);
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gGL.vertex3f( length, 0.0f, 0.0f);
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gGL.vertex3f( 0.0f, -boneSize, 0.0f);
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gGL.vertex3f( 0.0f, 0.0f, -boneSize);
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gGL.vertex3f( length, 0.0f, 0.0f);
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gGL.vertex3f( 0.0f, 0.0f, boneSize);
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gGL.vertex3f( 0.0f, -boneSize, 0.0f);
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gGL.end();
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// restore matrix
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glPopMatrix();
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}
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//--------------------------------------------------------------------
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// isTransparent()
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//--------------------------------------------------------------------
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BOOL LLViewerJoint::isTransparent()
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{
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return FALSE;
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}
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//--------------------------------------------------------------------
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// drawShape()
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//--------------------------------------------------------------------
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U32 LLViewerJoint::drawShape( F32 pixelArea, BOOL first_pass )
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{
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return 0;
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}
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//--------------------------------------------------------------------
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// setSkeletonComponents()
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//--------------------------------------------------------------------
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void LLViewerJoint::setSkeletonComponents( U32 comp, BOOL recursive )
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{
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mComponents = comp;
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if (recursive)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->setSkeletonComponents(comp, recursive);
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}
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}
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}
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void LLViewerJoint::updateFaceSizes(U32 &num_vertices, U32& num_indices, F32 pixel_area)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->updateFaceSizes(num_vertices, num_indices, pixel_area);
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}
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}
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void LLViewerJoint::updateFaceData(LLFace *face, F32 pixel_area, BOOL damp_wind)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->updateFaceData(face, pixel_area, damp_wind);
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}
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}
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void LLViewerJoint::updateGeometry()
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->updateGeometry();
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}
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}
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BOOL LLViewerJoint::updateLOD(F32 pixel_area, BOOL activate)
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{
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BOOL lod_changed = FALSE;
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BOOL found_lod = FALSE;
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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F32 jointLOD = joint->getLOD();
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if (found_lod || jointLOD == DEFAULT_LOD)
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{
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// we've already found a joint to enable, so enable the rest as alternatives
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lod_changed |= joint->updateLOD(pixel_area, TRUE);
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}
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else
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{
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if (pixel_area >= jointLOD || sDisableLOD)
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{
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lod_changed |= joint->updateLOD(pixel_area, TRUE);
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found_lod = TRUE;
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}
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else
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{
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lod_changed |= joint->updateLOD(pixel_area, FALSE);
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}
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}
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}
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return lod_changed;
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}
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void LLViewerJoint::dump()
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->dump();
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}
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}
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void LLViewerJoint::setVisible(BOOL visible, BOOL recursive)
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{
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mVisible = visible;
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if (recursive)
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{
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for (child_list_t::iterator iter = mChildren.begin();
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iter != mChildren.end(); ++iter)
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{
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LLViewerJoint* joint = (LLViewerJoint*)(*iter);
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joint->setVisible(visible, recursive);
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}
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}
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}
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//-----------------------------------------------------------------------------
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// LLViewerJointCollisionVolume()
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//-----------------------------------------------------------------------------
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LLViewerJointCollisionVolume::LLViewerJointCollisionVolume()
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{
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mUpdateXform = FALSE;
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}
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LLViewerJointCollisionVolume::LLViewerJointCollisionVolume(const std::string &name, LLJoint *parent) : LLViewerJoint(name, parent)
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{
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}
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void LLViewerJointCollisionVolume::renderCollision()
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{
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updateWorldMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glMultMatrixf( &mXform.getWorldMatrix().mMatrix[0][0] );
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glColor3f( 0.f, 0.f, 1.f );
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gSphere.render();
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glPopMatrix();
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}
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LLVector3 LLViewerJointCollisionVolume::getVolumePos(LLVector3 &offset)
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{
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mUpdateXform = TRUE;
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LLVector3 result = offset;
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result.scaleVec(getScale());
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result.rotVec(getWorldRotation());
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result += getWorldPosition();
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return result;
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}
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// End
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