lldrawpoolsky.cpp
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上传日期:2021-03-01
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- /**
- * @file lldrawpoolsky.cpp
- * @brief LLDrawPoolSky 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 "lldrawpoolsky.h"
- #include "imageids.h"
- #include "llagent.h"
- #include "lldrawable.h"
- #include "llface.h"
- #include "llsky.h"
- #include "llviewercamera.h"
- #include "llviewertexturelist.h"
- #include "llviewerregion.h"
- #include "llvosky.h"
- #include "llworld.h" // To get water height
- #include "pipeline.h"
- #include "llviewershadermgr.h"
- LLDrawPoolSky::LLDrawPoolSky()
- : LLFacePool(POOL_SKY),
-
- mSkyTex(NULL),
- mShader(NULL)
- {
- }
- LLDrawPool *LLDrawPoolSky::instancePool()
- {
- return new LLDrawPoolSky();
- }
- void LLDrawPoolSky::prerender()
- {
- mVertexShaderLevel = LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT);
- gSky.mVOSkyp->updateGeometry(gSky.mVOSkyp->mDrawable);
- }
- void LLDrawPoolSky::render(S32 pass)
- {
- if (mDrawFace.empty())
- {
- return;
- }
- // Don't draw the sky box if we can and are rendering the WL sky dome.
- if (gPipeline.canUseWindLightShaders())
- {
- return;
- }
-
- // use a shader only underwater
- if(mVertexShaderLevel > 0 && LLPipeline::sUnderWaterRender)
- {
- mShader = &gObjectFullbrightWaterProgram;
- mShader->bind();
- }
- else
- {
- // don't use shaders!
- if (gGLManager.mHasShaderObjects)
- {
- // Ironically, we must support shader objects to be
- // able to use this call.
- LLGLSLShader::bindNoShader();
- }
- mShader = NULL;
- }
-
- LLGLSPipelineSkyBox gls_skybox;
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- LLGLClampToFarClip far_clip(glh_get_current_projection());
- LLGLEnable fog_enable( (mVertexShaderLevel < 1 && LLViewerCamera::getInstance()->cameraUnderWater()) ? GL_FOG : 0);
- gPipeline.disableLights();
-
- LLGLDisable clip(GL_CLIP_PLANE0);
- glPushMatrix();
- LLVector3 origin = LLViewerCamera::getInstance()->getOrigin();
- glTranslatef(origin.mV[0], origin.mV[1], origin.mV[2]);
- S32 face_count = (S32)mDrawFace.size();
- for (S32 i = 0; i < llmin(6, face_count); ++i)
- {
- renderSkyCubeFace(i);
- }
- LLGLEnable blend(GL_BLEND);
- glPopMatrix();
- }
- void LLDrawPoolSky::renderSkyCubeFace(U8 side)
- {
- LLFace &face = *mDrawFace[LLVOSky::FACE_SIDE0 + side];
- if (!face.getGeomCount())
- {
- return;
- }
- llassert(mSkyTex);
- mSkyTex[side].bindTexture(TRUE);
-
- face.renderIndexed();
- if (LLSkyTex::doInterpolate())
- {
- LLGLEnable blend(GL_BLEND);
- mSkyTex[side].bindTexture(FALSE);
- glColor4f(1, 1, 1, LLSkyTex::getInterpVal()); // lighting is disabled
- face.renderIndexed();
- }
- }
- void LLDrawPoolSky::renderForSelect()
- {
- }
- void LLDrawPoolSky::endRenderPass( S32 pass )
- {
- }