lldrawpooltree.cpp
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上传日期:2021-03-01
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- /**
- * @file lldrawpooltree.cpp
- * @brief LLDrawPoolTree class implementation
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "llviewerprecompiledheaders.h"
- #include "lldrawpooltree.h"
- #include "lldrawable.h"
- #include "llface.h"
- #include "llsky.h"
- #include "llvotree.h"
- #include "pipeline.h"
- #include "llviewercamera.h"
- #include "llviewershadermgr.h"
- #include "llrender.h"
- #include "llviewercontrol.h"
- S32 LLDrawPoolTree::sDiffTex = 0;
- static LLGLSLShader* shader = NULL;
- static LLFastTimer::DeclareTimer FTM_SHADOW_TREE("Tree Shadow");
- LLDrawPoolTree::LLDrawPoolTree(LLViewerTexture *texturep) :
- LLFacePool(POOL_TREE),
- mTexturep(texturep)
- {
- mTexturep->setAddressMode(LLTexUnit::TAM_WRAP);
- }
- LLDrawPool *LLDrawPoolTree::instancePool()
- {
- return new LLDrawPoolTree(mTexturep);
- }
- void LLDrawPoolTree::prerender()
- {
- mVertexShaderLevel = LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_OBJECT);
- }
- void LLDrawPoolTree::beginRenderPass(S32 pass)
- {
- LLFastTimer t(FTM_RENDER_TREES);
- gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
-
- if (LLPipeline::sUnderWaterRender)
- {
- shader = &gObjectSimpleWaterProgram;
- }
- else
- {
- shader = &gObjectSimpleProgram;
- }
- if (gPipeline.canUseWindLightShadersOnObjects())
- {
- shader->bind();
- }
- else
- {
- gPipeline.enableLightsDynamic();
- }
- }
- void LLDrawPoolTree::render(S32 pass)
- {
- LLFastTimer t(LLPipeline::sShadowRender ? FTM_SHADOW_TREE : FTM_RENDER_TREES);
- if (mDrawFace.empty())
- {
- return;
- }
- LLGLEnable test(GL_ALPHA_TEST);
- LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
- if (gSavedSettings.getBOOL("RenderAnimateTrees"))
- {
- renderTree();
- }
- else
- {
- gGL.getTexUnit(sDiffTex)->bind(mTexturep);
-
- for (std::vector<LLFace*>::iterator iter = mDrawFace.begin();
- iter != mDrawFace.end(); iter++)
- {
- LLFace *face = *iter;
- face->mVertexBuffer->setBuffer(LLDrawPoolTree::VERTEX_DATA_MASK);
- face->mVertexBuffer->drawRange(LLRender::TRIANGLES, 0, face->mVertexBuffer->getRequestedVerts()-1, face->mVertexBuffer->getRequestedIndices(), 0);
- gPipeline.addTrianglesDrawn(face->mVertexBuffer->getRequestedIndices()/3);
- }
- }
- }
- void LLDrawPoolTree::endRenderPass(S32 pass)
- {
- LLFastTimer t(FTM_RENDER_TREES);
- gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
-
- if (gPipeline.canUseWindLightShadersOnObjects())
- {
- shader->unbind();
- }
- }
- //============================================
- // deferred implementation
- //============================================
- void LLDrawPoolTree::beginDeferredPass(S32 pass)
- {
- LLFastTimer t(FTM_RENDER_TREES);
- gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.f);
-
- shader = &gDeferredTreeProgram;
- shader->bind();
- }
- void LLDrawPoolTree::renderDeferred(S32 pass)
- {
- render(pass);
- }
- void LLDrawPoolTree::endDeferredPass(S32 pass)
- {
- LLFastTimer t(FTM_RENDER_TREES);
- gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
-
- shader->unbind();
- }
- //============================================
- // shadow implementation
- //============================================
- void LLDrawPoolTree::beginShadowPass(S32 pass)
- {
- LLFastTimer t(FTM_SHADOW_TREE);
- gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
- glPolygonOffset(gSavedSettings.getF32("RenderDeferredTreeShadowOffset"),
- gSavedSettings.getF32("RenderDeferredTreeShadowBias"));
- gDeferredShadowProgram.bind();
- }
- void LLDrawPoolTree::renderShadow(S32 pass)
- {
- render(pass);
- }
- void LLDrawPoolTree::endShadowPass(S32 pass)
- {
- LLFastTimer t(FTM_SHADOW_TREE);
- gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
- glPolygonOffset(gSavedSettings.getF32("RenderDeferredSpotShadowOffset"),
- gSavedSettings.getF32("RenderDeferredSpotShadowBias"));
- //gDeferredShadowProgram.unbind();
- }
- void LLDrawPoolTree::renderForSelect()
- {
- if (mDrawFace.empty())
- {
- return;
- }
- LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
- LLGLSObjectSelectAlpha gls_alpha;
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- gGL.setSceneBlendType(LLRender::BT_REPLACE);
- gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
- gGL.getTexUnit(0)->setTextureColorBlend(LLTexUnit::TBO_REPLACE, LLTexUnit::TBS_PREV_COLOR);
- gGL.getTexUnit(0)->setTextureAlphaBlend(LLTexUnit::TBO_MULT, LLTexUnit::TBS_TEX_ALPHA, LLTexUnit::TBS_VERT_ALPHA);
- if (gSavedSettings.getBOOL("RenderAnimateTrees"))
- {
- renderTree(TRUE);
- }
- else
- {
- gGL.getTexUnit(sDiffTex)->bind(mTexturep);
-
- for (std::vector<LLFace*>::iterator iter = mDrawFace.begin();
- iter != mDrawFace.end(); iter++)
- {
- LLFace *face = *iter;
- LLDrawable *drawablep = face->getDrawable();
- if (drawablep->isDead() || face->mVertexBuffer.isNull())
- {
- continue;
- }
- // Render each of the trees
- LLVOTree *treep = (LLVOTree *)drawablep->getVObj().get();
- LLColor4U color(255,255,255,255);
- if (treep->mGLName != 0)
- {
- S32 name = treep->mGLName;
- color = LLColor4U((U8)(name >> 16), (U8)(name >> 8), (U8)name, 255);
-
- LLFacePool::LLOverrideFaceColor col(this, color);
-
- face->mVertexBuffer->setBuffer(LLDrawPoolTree::VERTEX_DATA_MASK);
- face->mVertexBuffer->drawRange(LLRender::TRIANGLES, 0, face->mVertexBuffer->getRequestedVerts()-1, face->mVertexBuffer->getRequestedIndices(), 0);
- gPipeline.addTrianglesDrawn(face->mVertexBuffer->getRequestedIndices()/3);
- }
- }
- }
- gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
- gGL.setSceneBlendType(LLRender::BT_ALPHA);
- gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
- }
- void LLDrawPoolTree::renderTree(BOOL selecting)
- {
- LLGLState normalize(GL_NORMALIZE, TRUE);
-
- // Bind the texture for this tree.
- gGL.getTexUnit(sDiffTex)->bind(mTexturep.get(), TRUE);
-
- U32 indices_drawn = 0;
- glMatrixMode(GL_MODELVIEW);
-
- for (std::vector<LLFace*>::iterator iter = mDrawFace.begin();
- iter != mDrawFace.end(); iter++)
- {
- LLFace *face = *iter;
- LLDrawable *drawablep = face->getDrawable();
- if (drawablep->isDead() || face->mVertexBuffer.isNull())
- {
- continue;
- }
- face->mVertexBuffer->setBuffer(LLDrawPoolTree::VERTEX_DATA_MASK);
- U16* indicesp = (U16*) face->mVertexBuffer->getIndicesPointer();
- // Render each of the trees
- LLVOTree *treep = (LLVOTree *)drawablep->getVObj().get();
- LLColor4U color(255,255,255,255);
- if (!selecting || treep->mGLName != 0)
- {
- if (selecting)
- {
- S32 name = treep->mGLName;
-
- color = LLColor4U((U8)(name >> 16), (U8)(name >> 8), (U8)name, 255);
- }
-
- gGLLastMatrix = NULL;
- glLoadMatrixd(gGLModelView);
- //glPushMatrix();
- F32 mat[16];
- for (U32 i = 0; i < 16; i++)
- mat[i] = (F32) gGLModelView[i];
- LLMatrix4 matrix(mat);
-
- // Translate to tree base HACK - adjustment in Z plants tree underground
- const LLVector3 &pos_agent = treep->getPositionAgent();
- //glTranslatef(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
- LLMatrix4 trans_mat;
- trans_mat.setTranslation(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
- trans_mat *= matrix;
-
- // Rotate to tree position and bend for current trunk/wind
- // Note that trunk stiffness controls the amount of bend at the trunk as
- // opposed to the crown of the tree
- //
- const F32 TRUNK_STIFF = 22.f;
-
- LLQuaternion rot =
- LLQuaternion(treep->mTrunkBend.magVec()*TRUNK_STIFF*DEG_TO_RAD, LLVector4(treep->mTrunkBend.mV[VX], treep->mTrunkBend.mV[VY], 0)) *
- LLQuaternion(90.f*DEG_TO_RAD, LLVector4(0,0,1)) *
- treep->getRotation();
- LLMatrix4 rot_mat(rot);
- rot_mat *= trans_mat;
- F32 radius = treep->getScale().magVec()*0.05f;
- LLMatrix4 scale_mat;
- scale_mat.mMatrix[0][0] =
- scale_mat.mMatrix[1][1] =
- scale_mat.mMatrix[2][2] = radius;
- scale_mat *= rot_mat;
- const F32 THRESH_ANGLE_FOR_BILLBOARD = 15.f;
- const F32 BLEND_RANGE_FOR_BILLBOARD = 3.f;
- F32 droop = treep->mDroop + 25.f*(1.f - treep->mTrunkBend.magVec());
-
- S32 stop_depth = 0;
- F32 app_angle = treep->getAppAngle()*LLVOTree::sTreeFactor;
- F32 alpha = 1.0;
- S32 trunk_LOD = 0;
- for (S32 j = 0; j < 4; j++)
- {
- if (app_angle > LLVOTree::sLODAngles[j])
- {
- trunk_LOD = j;
- break;
- }
- }
- if (app_angle < (THRESH_ANGLE_FOR_BILLBOARD - BLEND_RANGE_FOR_BILLBOARD))
- {
- //
- // Draw only the billboard
- //
- // Only the billboard, can use closer to normal alpha func.
- stop_depth = -1;
- LLFacePool::LLOverrideFaceColor clr(this, color);
- indices_drawn += treep->drawBranchPipeline(scale_mat, indicesp, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
- }
- else // if (app_angle > (THRESH_ANGLE_FOR_BILLBOARD + BLEND_RANGE_FOR_BILLBOARD))
- {
- //
- // Draw only the full geometry tree
- //
- //stop_depth = (app_angle < THRESH_ANGLE_FOR_RECURSION_REDUCTION);
- LLFacePool::LLOverrideFaceColor clr(this, color);
- indices_drawn += treep->drawBranchPipeline(scale_mat, indicesp, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
- }
-
- //glPopMatrix();
- }
- }
- }
- BOOL LLDrawPoolTree::verify() const
- {
- /* BOOL ok = TRUE;
- if (!ok)
- {
- printDebugInfo();
- }
- return ok;*/
- return TRUE;
- }
- LLViewerTexture *LLDrawPoolTree::getTexture()
- {
- return mTexturep;
- }
- LLViewerTexture *LLDrawPoolTree::getDebugTexture()
- {
- return mTexturep;
- }
- LLColor3 LLDrawPoolTree::getDebugColor() const
- {
- return LLColor3(1.f, 0.f, 1.f);
- }