Use correct Y axis direction #4
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WGPU 0.4 has Y axis pointing Down nuklear-backend-wgpurs assumes (in projection matrix) it points up, but also knows it must point down and performs costly y coordinate fix by iterating all vertices. This change removes the costly iteration, and changes the projection matrix to use WGPU 0.4's natural Y axis direction
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WGPU 0.4 has Y axis pointing Down
nuklear-backend-wgpurs assumes (in projection matrix) it points up, but also knows it must point down and performs costly y coordinate fix by iterating all vertices.
This change removes the costly iteration, and changes the projection matrix to use WGPU 0.4's natural Y axis direction.
The effect is rather dramatic (on my machine, so YMMV).
The iteration (with
const MAX_VERTEX_MEMORY: usize = 512 * 1024;) used to take 26-50ms, which increased frame render time.With this gone, overhead of this backend is negligible.