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var<private> uvs: array<vec2<f32>, 6> = array<vec2<f32>, 6>(
vec2<f32>(0.0, 0.0),
vec2<f32>(1.0, 0.0),
vec2<f32>(1.0, 1.0),
vec2<f32>(0.0, 0.0),
vec2<f32>(0.0, 1.0),
vec2<f32>(1.0, 1.0)
);
@group(0) @binding(0) var u_sampler: sampler;
@group(0) @binding(1) var<uniform> u_ratio: vec2<f32>;
@group(1) @binding(0) var u_texture: texture_2d<f32>;
struct VertexInput {
@builtin(vertex_index) vertex_index: u32,
}
struct VertexOutput {
@builtin(position) position: vec4<f32>,
@location(0) uv: vec2<f32>,
}
@vertex
fn vs_main(input: VertexInput) -> VertexOutput {
let uv = uvs[input.vertex_index];
var out: VertexOutput;
out.uv = uv * u_ratio;
out.position = vec4<f32>(uv * vec2(2.0, -2.0) + vec2(-1.0, 1.0), 0.0, 1.0);
return out;
}
@fragment
fn fs_main(input: VertexOutput) -> @location(0) vec4<f32> {
return textureSample(u_texture, u_sampler, input.uv);
}
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