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9b22ab4167
Use an internal geometry shader to handle input primitives. Do full accurate culling and clipping in the shader and output hit result and min/max depth to a SSBO for final being written to select buffer. With multiple result slots in SSBO we can left multiple draws on the fly and wait them done when buffer is full or exit GL_SELECT mode. This provides quicker selection response compared to software based solution. Tested on Discovery Studio 2020: some complex model needs 1~2s selection response time originally, now it's almost selected immidiately. Reviewed-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15765> |
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| gallium | ||
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| meson.build | ||