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Discard fragments with out-of-bounds uv coordinates

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Héctor Ramón Jiménez 2025-10-27 12:23:36 +01:00
parent 3e8e088cdd
commit 704144728f
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GPG key ID: 7CC46565708259A7
1 changed files with 11 additions and 10 deletions
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21
wgpu/src/shader/image.wgsl
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@ -23,11 +23,12 @@ struct VertexInput {
struct VertexOutput {
@builtin(position) position: vec4<f32>,
@location(0) clip_bounds: vec4<f32>,
@location(1) border_radius: vec4<f32>,
@location(2) uv: vec2<f32>,
@location(3) layer: f32, // this should be an i32, but naga currently reads that as requiring interpolation.
@location(4) opacity: f32,
@location(0) @interpolate(flat) clip_bounds: vec4<f32>,
@location(1) @interpolate(flat) border_radius: vec4<f32>,
@location(2) @interpolate(flat) atlas: vec4<f32>,
@location(3) @interpolate(flat) layer: i32,
@location(4) @interpolate(flat) opacity: f32,
@location(5) uv: vec2<f32>,
}
@vertex
@ -37,10 +38,6 @@ fn vs_main(input: VertexInput) -> VertexOutput {
// Generate a vertex position in the range [0, 1] from the vertex index
let corner = vertex_position(input.vertex_index);
// Map the vertex position to the atlas texture
out.layer = f32(input.layer);
out.opacity = input.opacity;
let tile = input.tile;
let center = input.center;
@ -95,6 +92,9 @@ fn vs_main(input: VertexInput) -> VertexOutput {
out.position = globals.transform * out.position;
out.clip_bounds = globals.scale_factor * input.clip_bounds;
out.border_radius = globals.scale_factor * input.border_radius;
out.atlas = vec4(input.atlas_pos, input.atlas_pos + input.atlas_scale);
out.layer = input.layer;
out.opacity = input.opacity;
return out;
}
@ -112,8 +112,9 @@ fn fs_main(input: VertexOutput) -> @location(0) vec4<f32> {
) / 2.0;
let antialias: f32 = clamp(1.0 - d, 0.0, 1.0);
let inside = all(input.uv >= input.atlas.xy) && all(input.uv <= input.atlas.zw);
return textureSample(u_texture, u_sampler, input.uv, i32(input.layer)) * vec4<f32>(1.0, 1.0, 1.0, antialias * input.opacity);
return textureSample(u_texture, u_sampler, input.uv, input.layer) * vec4<f32>(1.0, 1.0, 1.0, antialias * input.opacity * f32(inside));
}
fn rounded_box_sdf(p: vec2<f32>, size: vec2<f32>, corners: vec4<f32>) -> f32 {