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-rw-r--r--indra/newview/llvovolume.cpp24
1 files changed, 24 insertions, 0 deletions
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 6d4565ec2f..6bb4e9e63b 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -1089,9 +1089,33 @@ BOOL LLVOVolume::setVolume(const LLVolumeParams &params_in, const S32 detail, bo
}
}
+
+ static LLCachedControl<bool> use_transform_feedback(gSavedSettings, "RenderUseTransformFeedback");
+
+ bool cache_in_vram = use_transform_feedback && gTransformPositionProgram.mProgramObject &&
+ (!mVolumeImpl || !mVolumeImpl->isVolumeUnique());
+
+ if (cache_in_vram)
+ { //this volume might be used as source data for a transform object, put it in vram
+ LLVolume* volume = getVolume();
+ for (S32 i = 0; i < volume->getNumFaces(); ++i)
+ {
+ const LLVolumeFace& face = volume->getVolumeFace(i);
+ if (face.mVertexBuffer.notNull())
+ { //already cached
+ break;
+ }
+ volume->genBinormals(i);
+ LLFace::cacheFaceInVRAM(face);
+ }
+ }
+
+
return TRUE;
}
+
+
return FALSE;
}