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freakin huge circle

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This commit is contained in:
Rhys Lloyd
2025-12-19 14:50:37 -08:00
parent a1b5d12da7
commit e97a2a375d
1 changed files with 12 additions and 3 deletions
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15
strafe-client/src/shader.wgsl
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@@ -207,9 +207,18 @@ fn ms_debug_edge(){
for (var i:u32 = 0; i<=N/2; i++){
// two half circles that make a whole
var offset: vec2<f32> = 0.5 * vec2(cos(f32(i) * tau / f32(N)), sin(f32(i) * tau / f32(N)));
mesh_output.vertices[i].position = v0_screen_position + vec4<f32>(offset, 0.0, 0.0);
mesh_output.vertices[N/2+1+i].position = v1_screen_position + vec4<f32>(-offset, 0.0, 0.0);
var theta: f32 = f32(i) * tau / f32(N);
var cos_sin: vec2<f32> = vec2(cos(theta), sin(theta));
// construct basis vectors
var y_axis: vec4<f32> = v0_screen_position - v1_screen_position;
var x_axis: vec4<f32> = y_axis.yxzw;
x_axis.x = -x_axis.x;
var offset: vec4<f32> = x_axis * cos_sin.x + y_axis * cos_sin.y;
mesh_output.vertices[i].position = v0_screen_position + offset;
mesh_output.vertices[N/2+1+i].position = v1_screen_position - offset;
}
// max area triangle indices