leyoda/iced-yoda
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

Use premultiplied colors in triangle pipelines

Browse source
This commit is contained in:
Héctor Ramón Jiménez 2025-05-12 18:35:27 +02:00
parent df37d6f9bc
commit 098bd1b8a4
No known key found for this signature in database
GPG key ID: 7CC46565708259A7
9 changed files with 37 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

23
wgpu/src/shader/triangle/gradient.wgsl
View file

@ -87,14 +87,14 @@ fn gradient(
@fragment
fn gradient_fs_main(input: GradientVertexOutput) -> @location(0) vec4<f32> {
let colors = array<vec4<f32>, 8>(
unpack_u32(input.colors_1.xy),
unpack_u32(input.colors_1.zw),
unpack_u32(input.colors_2.xy),
unpack_u32(input.colors_2.zw),
unpack_u32(input.colors_3.xy),
unpack_u32(input.colors_3.zw),
unpack_u32(input.colors_4.xy),
unpack_u32(input.colors_4.zw),
unpack_color(input.colors_1.xy),
unpack_color(input.colors_1.zw),
unpack_color(input.colors_2.xy),
unpack_color(input.colors_2.zw),
unpack_color(input.colors_3.xy),
unpack_color(input.colors_3.zw),
unpack_color(input.colors_4.xy),
unpack_color(input.colors_4.zw),
);
let offsets_1: vec4<f32> = unpack_u32(input.offsets.xy);
@ -122,13 +122,6 @@ fn gradient_fs_main(input: GradientVertexOutput) -> @location(0) vec4<f32> {
return gradient(input.raw_position, input.direction, colors, offsets, last_index);
}
fn unpack_u32(color: vec2<u32>) -> vec4<f32> {
let rg: vec2<f32> = unpack2x16float(color.x);
let ba: vec2<f32> = unpack2x16float(color.y);
return vec4<f32>(rg.y, rg.x, ba.y, ba.x);
}
fn random(coords: vec2<f32>) -> f32 {
return fract(sin(dot(coords, vec2(12.9898,78.233))) * 43758.5453);
}