mirror of
https://github.com/GraphiteEditor/Graphite.git
synced 2026-09-16 14:58:05 +08:00
095c2a6d47
* Add pixel preview render mode * Fix fmt * Remove unused sampler * Remove unnecessary mutex * Code review --------- Co-authored-by: Keavon Chambers <keavon@keavon.com>
52 lines
1.2 KiB
WebGPU Shading Language
52 lines
1.2 KiB
WebGPU Shading Language
// =============
|
|
// VERTEX SHADER
|
|
// =============
|
|
|
|
struct VertexOutput {
|
|
@builtin(position) clip_position: vec4<f32>,
|
|
@location(0) tex_coords: vec2<f32>,
|
|
}
|
|
|
|
@vertex
|
|
fn vs_main(@builtin(vertex_index) vertex_index: u32) -> VertexOutput {
|
|
var out: VertexOutput;
|
|
let pos = array(
|
|
vec2f(-1.0, -1.0),
|
|
vec2f(3.0, -1.0),
|
|
vec2f(-1.0, 3.0),
|
|
);
|
|
let xy = pos[vertex_index];
|
|
out.clip_position = vec4f(xy, 0.0, 1.0);
|
|
let coords = xy / 2. + 0.5;
|
|
out.tex_coords = vec2f(coords.x, 1. - coords.y);
|
|
return out;
|
|
}
|
|
|
|
// ===============
|
|
// FRAGMENT SHADER
|
|
// ===============
|
|
|
|
@group(0) @binding(0)
|
|
var t_source: texture_2d<f32>;
|
|
|
|
struct Params {
|
|
matrix: mat2x2<f32>,
|
|
translation: vec2<f32>,
|
|
_pad: vec2<f32>,
|
|
};
|
|
|
|
// We need to use a uniform buffer for the params because push constants are not supported on web
|
|
@group(0) @binding(1)
|
|
var<uniform> params: Params;
|
|
|
|
@fragment
|
|
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
|
|
let position = params.matrix * in.tex_coords + params.translation;
|
|
let texel = vec2<i32>(floor(position));
|
|
let texture_size = vec2<i32>(textureDimensions(t_source));
|
|
if (texel.x >= 0 && texel.x < texture_size.x && texel.y >= 0 && texel.y < texture_size.y) {
|
|
return textureLoad(t_source, texel, 0);
|
|
}
|
|
return vec4<f32>(0.0);
|
|
}
|