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bevy_core_pipeline: Fix prepass sort orders (#7539)

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# Objective

- Prepass opaque and alpha mask are incorrectly sorted back to front. This slipped through review by accident.

## Solution

- Sort prepass opaque and alpha mask front to back
This commit is contained in:
Robert Swain 2023-02-07 11:31:35 +00:00
parent f3a23fd569
commit 6d399bfaf8
1 changed files with 14 additions and 6 deletions
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20
crates/bevy_core_pipeline/src/prepass/mod.rs
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@ -26,6 +26,8 @@
pub mod node;
use std::cmp::Reverse;
use bevy_ecs::prelude::*;
use bevy_reflect::Reflect;
use bevy_render::{
@ -75,15 +77,17 @@ pub struct Opaque3dPrepass {
}
impl PhaseItem for Opaque3dPrepass {
type SortKey = FloatOrd;
// NOTE: Values increase towards the camera. Front-to-back ordering for opaque means we need a descending sort.
type SortKey = Reverse<FloatOrd>;
#[inline]
fn entity(&self) -> Entity {
self.entity
}
#[inline]
fn sort_key(&self) -> Self::SortKey {
FloatOrd(self.distance)
Reverse(FloatOrd(self.distance))
}
#[inline]
@ -93,7 +97,8 @@ impl PhaseItem for Opaque3dPrepass {
#[inline]
fn sort(items: &mut [Self]) {
radsort::sort_by_key(items, |item| item.distance);
// Key negated to match reversed SortKey ordering
radsort::sort_by_key(items, |item| -item.distance);
}
}
@ -117,15 +122,17 @@ pub struct AlphaMask3dPrepass {
}
impl PhaseItem for AlphaMask3dPrepass {
type SortKey = FloatOrd;
// NOTE: Values increase towards the camera. Front-to-back ordering for alpha mask means we need a descending sort.
type SortKey = Reverse<FloatOrd>;
#[inline]
fn entity(&self) -> Entity {
self.entity
}
#[inline]
fn sort_key(&self) -> Self::SortKey {
FloatOrd(self.distance)
Reverse(FloatOrd(self.distance))
}
#[inline]
@ -135,7 +142,8 @@ impl PhaseItem for AlphaMask3dPrepass {
#[inline]
fn sort(items: &mut [Self]) {
radsort::sort_by_key(items, |item| item.distance);
// Key negated to match reversed SortKey ordering
radsort::sort_by_key(items, |item| -item.distance);
}
}