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fix the bug with sahdows on Mac due to the fbo needing a colorbuffer even though it's not needed

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This commit is contained in:
samcake 2015-04-30 23:31:56 -07:00
parent dc9e5cad24
commit 6da796f735
1 changed files with 13 additions and 0 deletions
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13
libraries/gpu/src/gpu/GLBackendOutput.cpp
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@ -74,6 +74,19 @@ GLBackend::GLFramebuffer* GLBackend::syncGPUObject(const Framebuffer& framebuffe
} }
} }
} }
#if (GPU_FEATURE_PROFILE == GPU_LEGACY)
// for reasons that i don;t understand yet, it seems that on mac gl, a fbo must have a color buffer...
else {
GLuint renderBuffer = 0;
glGenRenderbuffers(1, &renderBuffer);
glBindRenderbuffer(GL_RENDERBUFFER, renderBuffer);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA, framebuffer.getWidth(), framebuffer.getHeight());
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderBuffer);
CHECK_GL_ERROR();
}
#endif
if (framebuffer.hasDepthStencil()) { if (framebuffer.hasDepthStencil()) {
auto surface = framebuffer.getDepthStencilBuffer(); auto surface = framebuffer.getDepthStencilBuffer();