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Snap clip_bounds in image shader

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Héctor Ramón Jiménez 2025-10-28 23:36:36 +01:00
parent bed9657ec2
commit e665afd9eb
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GPG key ID: 7CC46565708259A7
1 changed files with 5 additions and 1 deletions
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6
wgpu/src/shader/image.wgsl
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@ -76,6 +76,7 @@ fn vs_main(input: VertexInput) -> VertexOutput {
// Calculate the vertex position // Calculate the vertex position
let v_pos = clipped_tile.xy + corner * clipped_tile.zw; let v_pos = clipped_tile.xy + corner * clipped_tile.zw;
out.position = vec4(vec2(globals.scale_factor), 1.0, 1.0) * vec4<f32>(v_pos, 0.0, 1.0); out.position = vec4(vec2(globals.scale_factor), 1.0, 1.0) * vec4<f32>(v_pos, 0.0, 1.0);
out.clip_bounds = globals.scale_factor * input.clip_bounds;
// Calculate rotated UV // Calculate rotated UV
let uv = input.atlas_pos + (v_pos - tile.xy) / tile.zw * input.atlas_scale; let uv = input.atlas_pos + (v_pos - tile.xy) / tile.zw * input.atlas_scale;
@ -87,10 +88,13 @@ fn vs_main(input: VertexInput) -> VertexOutput {
// Snap position to the pixel grid // Snap position to the pixel grid
if bool(input.snap) { if bool(input.snap) {
out.position = round(out.position); out.position = round(out.position);
out.clip_bounds = vec4(
round(out.clip_bounds.xy),
round(out.clip_bounds.xy + out.clip_bounds.zw) - out.clip_bounds.xy,
);
} }
out.position = globals.transform * out.position; 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.border_radius = globals.scale_factor * input.border_radius;
out.atlas = vec4(input.atlas_pos, input.atlas_pos + input.atlas_scale); out.atlas = vec4(input.atlas_pos, input.atlas_pos + input.atlas_scale);
out.layer = input.layer; out.layer = input.layer;