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blade: fix shadow vertex bounds

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Dzmitry Malyshau 2024-02-03 23:50:17 -08:00
parent cf71fe8bf1
commit c5ff46e14f
1 changed files with 3 additions and 4 deletions
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7
crates/gpui/src/platform/linux/shaders.wgsl
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@ -276,14 +276,13 @@ struct ShadowVarying {
@vertex
fn vs_shadow(@builtin(vertex_index) vertex_id: u32, @builtin(instance_index) instance_id: u32) -> ShadowVarying {
let unit_vertex = vec2<f32>(f32(vertex_id & 1u), 0.5 * f32(vertex_id & 2u));
let shadow = b_shadows[instance_id];
var shadow = b_shadows[instance_id];
let margin = 3.0 * shadow.blur_radius;
// Set the bounds of the shadow and adjust its size based on the shadow's
// spread radius to achieve the spreading effect
var bounds = shadow.bounds;
bounds.origin -= vec2<f32>(margin);
bounds.size += 2.0 * vec2<f32>(margin);
shadow.bounds.origin -= vec2<f32>(margin);
shadow.bounds.size += 2.0 * vec2<f32>(margin);
var out = ShadowVarying();
out.position = to_device_position(unit_vertex, shadow.bounds);