mirror of https://github.com/sotrh/learn-wgpu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
876 B
Plaintext
37 lines
876 B
Plaintext
// Vertex shader
|
|
|
|
struct VertexInput {
|
|
@location(0) position: vec3<f32>,
|
|
@location(1) tex_coords: vec2<f32>,
|
|
}
|
|
|
|
struct VertexOutput {
|
|
@builtin(position) clip_position: vec4<f32>,
|
|
@location(0) tex_coords: vec2<f32>,
|
|
}
|
|
|
|
@vertex
|
|
fn vs_main(
|
|
model: VertexInput,
|
|
) -> VertexOutput {
|
|
var out: VertexOutput;
|
|
out.tex_coords = model.tex_coords;
|
|
out.clip_position = vec4<f32>(model.position, 1.0);
|
|
return out;
|
|
}
|
|
|
|
// Fragment shader
|
|
|
|
@group(0) @binding(0)
|
|
var t_shadow: texture_depth_2d;
|
|
@group(0)@binding(1)
|
|
var s_shadow: sampler_comparison;
|
|
|
|
@fragment
|
|
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
|
|
let near = 0.1;
|
|
let far = 100.0;
|
|
let depth = textureSampleCompare(t_shadow, s_shadow, in.tex_coords, in.clip_position.w);
|
|
let r = (2.0 * near) / (far + near - depth * (far - near));
|
|
return vec4<f32>(vec3<f32>(r), 1.0);
|
|
} |