| Value | Meaning |
|---|---|
| SDL_GPU_PRIMITIVETYPE_TRIANGLELIST | A series of separate triangles. |
| SDL_GPU_PRIMITIVETYPE_TRIANGLESTRIP | A series of connected triangles. |
| SDL_GPU_PRIMITIVETYPE_LINELIST | A series of separate lines. |
| SDL_GPU_PRIMITIVETYPE_LINESTRIP | A series of connected lines. |
| SDL_GPU_PRIMITIVETYPE_POINTLIST | A series of separate points. |
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Specifies the primitive topology of a graphics pipeline.
If you are using POINTLIST you must include a point size output in the vertex shader.
- For HLSL compiling to SPIRV you must decorate a float output with [[vk::builtin("PointSize")]]. - For GLSL you must set the gl_PointSize builtin. - For MSL you must include a float output with the [point_size] decorator.
Note that sized point topology is totally unsupported on D3D12. Any size other than 1 will be ignored. In general, you should avoid using point topology for both compatibility and performance reasons. You WILL regret using it.