fix: radix sort depth inversion

mosure · Nov 27, 2023 · 46a9524 · 46a9524
1 parent a3050c3
commit 46a9524
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Showing 2 changed files with 3 additions and 5 deletions.
diff --git a/src/render/mod.rs b/src/render/mod.rs
@@ -484,8 +484,8 @@ impl SpecializedRenderPipeline for GaussianCloudPipeline {
                     format: TextureFormat::Rgba8UnormSrgb,
                     blend: Some(BlendState {
                         color: BlendComponent {
-                            src_factor: BlendFactor::DstAlpha,
-                            dst_factor: BlendFactor::One,
+                            src_factor: BlendFactor::One,
+                            dst_factor: BlendFactor::OneMinusSrcAlpha,
                             operation: BlendOperation::Add,
                         },
                         alpha: BlendComponent {

diff --git a/src/render/sort/radix.wgsl b/src/render/sort/radix.wgsl
@@ -57,9 +57,7 @@ fn radix_sort_a(
         let clip_space_pos = world_to_clip(transformed_position);
         if(in_frustum(clip_space_pos.xyz)) {
             // key = bitcast<u32>(1.0 - clip_space_pos.z);
-            // key = u32(clip_space_pos.z * 0xFFFF.0) << 16u;
-            let normalized_depth = (1.0 - clip_space_pos.z) * 0.5;
-            key = u32(normalized_depth * 0xFFFF.0) << 16u;
+            key = u32(clip_space_pos.z * 0xFFFF.0) << 16u;
             key |= u32((clip_space_pos.x * 0.5 + 0.5) * 0xFF.0) << 8u;
             key |= u32((clip_space_pos.y * 0.5 + 0.5) * 0xFF.0);
         }