import { mipMapShader } from "https://deno.land/x/caviar@2.6.7/web/src/renderers/webgpu/shader2d.ts";
type
`
struct VertexOutput {
@builtin(position) position : vec4<f32>,
@location(0) texCoord : vec2<f32>,
};
var<private> pos : array<vec2<f32>, 4> = array<vec2<f32>, 4>(
vec2<f32>(-1.0, 1.0), vec2<f32>(1.0, 1.0),
vec2<f32>(-1.0, -1.0), vec2<f32>(1.0, -1.0));
@vertex
fn vertexMain(@builtin(vertex_index) vertexIndex : u32) -> VertexOutput {
var output : VertexOutput;
output.texCoord = pos[vertexIndex] * vec2<f32>(0.5, -0.5) + vec2<f32>(0.5);
output.position = vec4<f32>(pos[vertexIndex], 0.0, 1.0);
return output;
}
@binding(0) @group(0)
var imgSampler : sampler;
@binding(1) @group(0)
var img : texture_2d<f32>;
@fragment
fn fragmentMain(@location(0) texCoord : vec2<f32>) -> @location(0) vec4<f32> {
return textureSample(img, imgSampler, texCoord);
}
`