bevy/crates/bevy_ui/src/render/ui.wgsl
François 814f8d1635 update wgpu to 0.13 (#5168)
# Objective

- Update wgpu to 0.13
- ~~Wait, is wgpu 0.13 released? No, but I had most of the changes already ready since playing with webgpu~~ well it has been released now
- Also update parking_lot to 0.12 and naga to 0.9

## Solution

- Update syntax for wgsl shaders https://github.com/gfx-rs/wgpu/blob/master/CHANGELOG.md#wgsl-syntax
- Add a few options, remove some references: https://github.com/gfx-rs/wgpu/blob/master/CHANGELOG.md#other-breaking-changes
- fragment inputs should now exactly match vertex outputs for locations, so I added exports for those to be able to reuse them https://github.com/gfx-rs/wgpu/pull/2704
2022-07-14 21:17:16 +00:00

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WebGPU Shading Language

struct View {
view_proj: mat4x4<f32>,
world_position: vec3<f32>,
};
@group(0) @binding(0)
var<uniform> view: View;
struct VertexOutput {
@location(0) uv: vec2<f32>,
@location(1) color: vec4<f32>,
@builtin(position) position: vec4<f32>,
};
@vertex
fn vertex(
@location(0) vertex_position: vec3<f32>,
@location(1) vertex_uv: vec2<f32>,
@location(2) vertex_color: vec4<f32>,
) -> VertexOutput {
var out: VertexOutput;
out.uv = vertex_uv;
out.position = view.view_proj * vec4<f32>(vertex_position, 1.0);
out.color = vertex_color;
return out;
}
@group(1) @binding(0)
var sprite_texture: texture_2d<f32>;
@group(1) @binding(1)
var sprite_sampler: sampler;
@fragment
fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
var color = textureSample(sprite_texture, sprite_sampler, in.uv);
color = in.color * color;
return color;
}