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A little toolkit for single-quad fragment shader demos
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zinnia/examples/test/shaders/march_prolog.glsl

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Switch scene_f over to returning a SceneResult{dist, mat_idx}
8 years ago
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  1. struct SceneResult {
  2. 	float d;
  3. 	float mat_idx;
  4. };
  5. 

  6. SceneResult min_sr(SceneResult a, SceneResult b) {
  7. 	return (a.d < b.d) ? a : b;
  8. }