[Merged by Bors] - use const Vec2 in lights cluster and bounding box when possible #4602
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mockersf
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| @@ -485,8 +487,7 @@ fn ndc_position_to_cluster( | |||
| view_z: f32, | |||
| ) -> UVec3 { | |||
| let cluster_dimensions_f32 = cluster_dimensions.as_vec3(); | |||
| let frag_coord = | |||
| (ndc_p.xy() * Vec2::new(0.5, -0.5) + Vec2::splat(0.5)).clamp(Vec2::ZERO, Vec2::ONE); | |||
| let frag_coord = (ndc_p.xy() * VEC2_HALF_NEGATIVE_Y + VEC2_HALF).clamp(Vec2::ZERO, Vec2::ONE); | |||
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crates/bevy_pbr/src/light.rs
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| ) | ||
| } | ||
|
|
||
| const NDC_MIN: Vec3 = const_vec3!([-1.0, -1.0, f32::MIN]); | ||
| const NDC_MAX: Vec3 = const_vec3!([1.0, 1.0, f32::MAX]); |
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This is a misnomer. ndc min/max depth values are 0.0 and 1.0 as anything outside will be clipped. I’ll have a closer look what this bit of code is doing to see whether the values should be changed or whether there’s a more accurate name that can be used.
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I reordered the code to not need to clamp on a Vec3, but do it on the Vec2. The clamp on z was meaningless anyway as it was between f32::MIN and f32::MAX. This seem to be even a tad bit faster to execute 🎉
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Removing the clamping is nice, good eye. |
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# Objective - noticed a few Vec3 and Vec2 that could be const ## Solution - Declared them as const - It seems to make a tiny improvement in example `many_light`, but given that the change is not complex at all it could still be worth it
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…engine#4602) - noticed a few Vec3 and Vec2 that could be const - Declared them as const - It seems to make a tiny improvement in example `many_light`, but given that the change is not complex at all it could still be worth it
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…engine#4602) - noticed a few Vec3 and Vec2 that could be const - Declared them as const - It seems to make a tiny improvement in example `many_light`, but given that the change is not complex at all it could still be worth it
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…engine#4602) # Objective - noticed a few Vec3 and Vec2 that could be const ## Solution - Declared them as const - It seems to make a tiny improvement in example `many_light`, but given that the change is not complex at all it could still be worth it
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…engine#4602) # Objective - noticed a few Vec3 and Vec2 that could be const ## Solution - Declared them as const - It seems to make a tiny improvement in example `many_light`, but given that the change is not complex at all it could still be worth it
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Objective
Solution
many_light, but given that the change is not complex at all it could still be worth it