1 files changed, 39 insertions, 30 deletions

diff --git a/indra/newview/lldrawpoolsky.cpp b/indra/newview/lldrawpoolsky.cpp
index bdb16abc78..dbe8724088 100644
--- a/indra/newview/lldrawpoolsky.cpp
+++ b/indra/newview/lldrawpoolsky.cpp
@@ -55,7 +55,7 @@ LLDrawPool *LLDrawPoolSky::instancePool()
 
 void LLDrawPoolSky::prerender()
 {
-	mVertexShaderLevel = LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT); 
+	mShaderLevel = LLViewerShaderMgr::instance()->getShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT); 
 	gSky.mVOSkyp->updateGeometry(gSky.mVOSkyp->mDrawable);
 }
 
@@ -75,7 +75,7 @@ void LLDrawPoolSky::render(S32 pass)
 	}
 	
 	// don't render sky under water (background just gets cleared to fog color)
-	if(mVertexShaderLevel > 0 && LLPipeline::sUnderWaterRender)
+	if(mShaderLevel > 0 && LLPipeline::sUnderWaterRender)
 	{
 		return;
 	}
@@ -98,18 +98,10 @@ void LLDrawPoolSky::render(S32 pass)
 	}
 	
 
-	LLGLSPipelineSkyBox gls_skybox;
+	LLGLSPipelineDepthTestSkyBox gls_skybox(true, false);
 
-	LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
-
-	LLGLSquashToFarClip far_clip(glh_get_current_projection());
-
-	LLGLEnable fog_enable( (mVertexShaderLevel < 1 && LLViewerCamera::getInstance()->cameraUnderWater()) ? GL_FOG : 0);
-
-	gPipeline.disableLights();
+	LLGLEnable fog_enable( (mShaderLevel < 1 && LLViewerCamera::getInstance()->cameraUnderWater()) ? GL_FOG : 0);
 	
-	LLGLDisable clip(GL_CLIP_PLANE0);
-
 	gGL.pushMatrix();
 	LLVector3 origin = LLViewerCamera::getInstance()->getOrigin();
 	gGL.translatef(origin.mV[0], origin.mV[1], origin.mV[2]);
@@ -119,35 +111,52 @@ void LLDrawPoolSky::render(S32 pass)
 	LLVertexBuffer::unbind();
 	gGL.diffuseColor4f(1,1,1,1);
 
-	for (S32 i = 0; i < llmin(6, face_count); ++i)
+	for (S32 i = 0; i < face_count; ++i)
 	{
-		renderSkyCubeFace(i);
+		renderSkyFace(i);
 	}
 
 	gGL.popMatrix();
 }
 
-void LLDrawPoolSky::renderSkyCubeFace(U8 side)
+void LLDrawPoolSky::renderSkyFace(U8 index)
 {
-	LLFace &face = *mDrawFace[LLVOSky::FACE_SIDE0 + side];
-	if (!face.getGeomCount())
+	LLFace* face = mDrawFace[index];
+
+	if (!face || !face->getGeomCount())
 	{
 		return;
 	}
 
-	llassert(mSkyTex);
-	mSkyTex[side].bindTexture(TRUE);
-	
-	face.renderIndexed();
-
-	if (LLSkyTex::doInterpolate())
-	{
-		
-		LLGLEnable blend(GL_BLEND);
-		mSkyTex[side].bindTexture(FALSE);
-		gGL.diffuseColor4f(1, 1, 1, LLSkyTex::getInterpVal()); // lighting is disabled
-		face.renderIndexed();
-	}
+    F32 interp_val = gSky.mVOSkyp ? gSky.mVOSkyp->getInterpVal() : 0.0f;
+
+    if (index < 6) // sky tex...interp
+    {
+        llassert(mSkyTex);
+	    mSkyTex[index].bindTexture(true); // bind the current tex
+
+        face->renderIndexed();
+
+        if (interp_val > 0.01f) // iff, we've got enough info to lerp (a to and a from)
+	    {
+		    LLGLEnable blend(GL_BLEND);
+            llassert(mSkyTex);
+	        mSkyTex[index].bindTexture(false); // bind the "other" texture
+		    gGL.diffuseColor4f(1, 1, 1, interp_val); // lighting is disabled
+		    face->renderIndexed();
+	    }
+    }
+    else // heavenly body faces, no interp...
+    {
+        LLGLEnable blend(GL_BLEND);
+
+        LLViewerTexture* tex = face->getTexture(LLRender::DIFFUSE_MAP);
+        if (tex)
+        {
+            gGL.getTexUnit(0)->bind(tex, true);
+            face->renderIndexed();
+        }
+    }
 }
 
 void LLDrawPoolSky::endRenderPass( S32 pass )