Add simple templating

1 files changed, 22 insertions, 0 deletions

diff --git a/templates/glsl/shaders/shader.glsl b/templates/glsl/shaders/shader.glsl
new file mode 100644
index 0000000..a271146
--- /dev/null
+++ b/templates/glsl/shaders/shader.glsl
@@ -0,0 +1,22 @@
+#version 430
+layout(local_size_x = 1, local_size_y = 1) in;
+
+uniform float seconds = 0;
+layout(rgba8) uniform readonly image2D noise_texture;
+layout(rgba8) uniform writeonly image2D output_image;
+
+float sample_noise(in vec2 p) {
+  vec4 noise = imageLoad(noise_texture, ivec2(p * imageSize(noise_texture)));
+  return noise.x;
+}
+
+void main() {
+  vec2 resolution = vec2(imageSize(output_image).xy);
+  float aspect_ratio = resolution.y / resolution.x;
+  vec2 uv = gl_GlobalInvocationID.xy * vec2(1.0, aspect_ratio) / resolution;
+
+  float v = sample_noise(uv);
+  vec3 color = mix(vec3(0), vec3(1), v);
+
+  imageStore(output_image, ivec2(gl_GlobalInvocationID.xy), vec4(color, 1));
+}