6487395fa5
Add new "Linear 3D Curves" option in the Curves panel in the render properties. This renders curves as linear segments rather than smooth curves, for faster render time at the cost of accuracy. On NVIDIA Blackwell GPUs, this can give a 6x speedup compared to smooth curves, due to hardware acceleration. On NVIDIA Ada there is still a 3x speedup, and CPU and other GPU backends will also render this faster. A difference with smooth curves is that these have end caps, as this was simpler to implement and they are usually helpful anyway. In the future this functionality will also be used to properly support the CURVE_TYPE_POLY on the new curves object. Pull Request: https://projects.blender.org/blender/blender/pulls/139735
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