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-rw-r--r--indra/newview/lldrawpoolalpha.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/indra/newview/lldrawpoolalpha.cpp b/indra/newview/lldrawpoolalpha.cpp
index 6aa2316589..060129d275 100644
--- a/indra/newview/lldrawpoolalpha.cpp
+++ b/indra/newview/lldrawpoolalpha.cpp
@@ -243,11 +243,13 @@ void LLDrawPoolAlpha::forwardRender(bool rigged)
//enable writing to alpha for emissive effects
gGL.setColorMask(true, true);
- bool write_depth = rigged ||
+ bool write_depth = rigged ||
LLDrawPoolWater::sSkipScreenCopy
// we want depth written so that rendered alpha will
// contribute to the alpha mask used for impostors
- || LLPipeline::sImpostorRenderAlphaDepthPass;
+ || LLPipeline::sImpostorRenderAlphaDepthPass
+ || getType() == LLDrawPoolAlpha::POOL_ALPHA_PRE_WATER; // needed for accurate water fog
+
LLGLDepthTest depth(GL_TRUE, write_depth ? GL_TRUE : GL_FALSE);