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Timestamp:
10/21/09 23:45:55 (4 years ago)
Author:
paulmartz
Message:

Add CMake-controllable option to avoid doing a glBlitFramebuffer into depth to resolve multisampling. This works arouns a hang on OS X with NVIDIA GeForce? 8800 and v1.5.49 drivers.

Files:
1 modified

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  • OpenSceneGraph/branches/OpenSceneGraph-2.8.2/src/osgUtil/RenderStage.cpp

    r10277 r10664  
    880880            { 
    881881            case Camera::DEPTH_BUFFER: 
     882#ifndef OSG_MULTISAMPLE_FBO_RESOLVE_IGNORES_DEPTH 
     883                // This #define is a workaround for an OS X NVIDIA driver bug 
     884                // confirmed on GeForce 8800 with driver v1.5.49. 
     885                // If the glBlitFramebuffer mask includes depth, the OS X desktop 
     886                // will hang. The #define is controlled from CMake and should be 
     887                // set to ON to enable the workaround and avoid blitting depth. 
    882888                blitMask |= GL_DEPTH_BUFFER_BIT; 
     889#endif 
    883890                break; 
    884891            case Camera::STENCIL_BUFFER: