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| author | Oz Linden <oz@lindenlab.com> | 2011-07-21 15:02:03 -0400 |
|---|---|---|
| committer | Oz Linden <oz@lindenlab.com> | 2011-07-21 15:02:03 -0400 |
| commit | c118ec209907618c77613990fe2359d4f92802e6 (patch) | |
| tree | b2fa95d1fa1563cdee89d2bf035b680c64918c0f /indra/llrender/llglslshader.cpp | |
| parent | 54bb91fd03d0c2f2600993274c59ae89324eeb03 (diff) | |
| parent | 67e365ba57bb7024a64bc0663782cd7f06b4a5cc (diff) | |
merge up changes for 2.8.0 release
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) { |