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| author | Brad Payne (Vir Linden) <vir@lindenlab.com> | 2011-07-01 10:09:03 -0400 |
|---|---|---|
| committer | Brad Payne (Vir Linden) <vir@lindenlab.com> | 2011-07-01 10:09:03 -0400 |
| commit | 3da45a3cd1e4a7984e2e41ab92ad9f97166aa3a6 (patch) | |
| tree | be99785bd263e745020de6456e6449ca9da62f3d /indra/llrender/llglslshader.cpp | |
| parent | 1716b8428f88989b2b8898e27cc137e7746a4805 (diff) | |
| parent | 021ce5ccaf10e140fe114c586466ccea8ea7dbdf (diff) | |
merge
Diffstat (limited to 'indra/llrender/llglslshader.cpp')
| -rw-r--r-- | indra/llrender/llglslshader.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp index 8e99f62de6..ad2c662dfc 100644 --- a/indra/llrender/llglslshader.cpp +++ b/indra/llrender/llglslshader.cpp @@ -109,6 +109,11 @@ BOOL LLGLSLShader::createShader(vector<string> * attributes, // Create program mProgramObject = glCreateProgramObjectARB(); + if (gGLManager.mGLVersion < 3.1f) + { //force indexed texture channels to 1 if GL version is old (performance improvement for drivers with poor branching shader model support) + mFeatures.mIndexedTextureChannels = llmin(mFeatures.mIndexedTextureChannels, 1); + } + //compile new source vector< pair<string,GLenum> >::iterator fileIter = mShaderFiles.begin(); for ( ; fileIter != mShaderFiles.end(); fileIter++ ) @@ -131,6 +136,11 @@ BOOL LLGLSLShader::createShader(vector<string> * attributes, return FALSE; } + if (gGLManager.mGLVersion < 3.1f) + { //attachShaderFeatures may have set the number of indexed texture channels, so set to 1 again + mFeatures.mIndexedTextureChannels = llmin(mFeatures.mIndexedTextureChannels, 1); + } + // Map attributes and uniforms if (success) { |