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[Merged by Bors] - use const Vec2 in lights cluster and bounding box when possible #4602
[Merged by Bors] - use const Vec2 in lights cluster and bounding box when possible #4602
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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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Yay named constants 🎉
crates/bevy_pbr/src/light.rs
Outdated
) | ||
} | ||
|
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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 🎉
Removing the clamping is nice, good eye. |
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You can merge this when you've dealt with the conflicts.
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bors r+ |
# 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
…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
…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
…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
…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
Objective
Solution
many_light
, but given that the change is not complex at all it could still be worth it