rustgpu!!

shader/src/render.rs

@@ -0,0 +1,24 @@
+use spirv_std::glam::{vec2, Vec2, Vec4};
+use spirv_std::{spirv, Image, Sampler};
+
+#[spirv(vertex)]
+pub fn vs_main(
+    #[spirv(vertex_index)] vi: u32,
+    #[spirv(position)] clip_position: &mut Vec4,
+    tex_pos: &mut Vec2,
+) {
+    let pos = vec2((vi % 2) as f32, (vi / 2) as f32);
+    *clip_position = (pos * 2.0 - 1.0).extend(0.0).extend(1.0);
+    *tex_pos = pos;
+    tex_pos.y = 1.0 - tex_pos.y;
+}
+
+#[spirv(fragment)]
+pub fn fs_main(
+    #[spirv(descriptor_set = 0, binding = 0)] texture: &Image!(2D, type=f32, sampled=true),
+    #[spirv(descriptor_set = 0, binding = 1)] sampler: &Sampler,
+    tex_pos: Vec2,
+    output: &mut Vec4,
+) {
+    *output = texture.sample(*sampler, tex_pos);
+}