diff options
| author | Brad Payne (Vir Linden) <vir@lindenlab.com> | 2011-07-11 11:24:05 -0400 |
|---|---|---|
| committer | Brad Payne (Vir Linden) <vir@lindenlab.com> | 2011-07-11 11:24:05 -0400 |
| commit | 48222564def4534b157f91e36a10c4df79010bfc (patch) | |
| tree | 65cc1c5ad92a7805b11366e17bb7bb0d11d915e0 /indra/llrender/llglslshader.cpp | |
| parent | 55f11fdfd17bdd3d9d0944940c62507741ac6a7b (diff) | |
| parent | 97ba99b3c04904633ec3e52f69602a11343e8b4c (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) { |