Write Image To Depth Buffer: Difference between revisions
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Use the glDrawPixels() command, with the format parameter set to GL_DEPTH_COMPONENT. You may want to mask off the color buffer when you do this, with a call to glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); . | Use the glDrawPixels() command, with the format parameter set to GL_DEPTH_COMPONENT. You may want to mask off the color buffer when you do this, with a call to glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); . | ||
You can read about depth buffer precision at http://www.opengl.org/wiki/Common_Mistakes#Depth_Buffer_Precision | |||
[[Category:Depth Buffering]] | [[Category:Depth Buffering]] | ||
Latest revision as of 05:02, 27 April 2011
Use the glDrawPixels() command, with the format parameter set to GL_DEPTH_COMPONENT. You may want to mask off the color buffer when you do this, with a call to glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); .
You can read about depth buffer precision at http://www.opengl.org/wiki/Common_Mistakes#Depth_Buffer_Precision