Context with more than 8Bit RGBA


it is feasible to generate an OpenGL context with more than 8Bit RGBA (WindowsXP)?

Thanks in advance!


I’ve never seen such pixel format for “Window”
context on NVIDIA.
But you can have up to 32bit float per channel for Off-Screen (PBuffer or FrameBuffer Ext) .

The accum buffer is usually (I should say always) 16 bit unsigned int per channel.
You can also make use of FBO (EXT_framebuffer_object) and ARB_float_texture for higher and unclampped precision lists the extensions.

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