Proposal: EXT_clip_control #3546
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kenrussell
approved these changes
Jun 29, 2023
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Due to historical reasons, WebGL uses [-1, +1] range for Z values. This leads to suboptimal depth buffer precision utilization because the best precision is allocated to mid-range values. When WebGL is implemented on top of Direct3D, Metal, or Vulkan, that range is rescaled to [0, +1] further increasing the loss and using extra per-vertex shader instructions.
The proposed extension would allow applications to directly use [0, +1] range.