Add simple templating

2 files changed, 64 insertions, 0 deletions

diff --git a/templates/glsl/kotlin/Program.kt b/templates/glsl/kotlin/Program.kt
new file mode 100644
index 0000000..3e436e8
--- /dev/null
+++ b/templates/glsl/kotlin/Program.kt
@@ -0,0 +1,42 @@
+package <<name>>
+
+import org.openrndr.application
+import org.openrndr.color.*
+import org.openrndr.draw.*
+import org.openrndr.extra.noise.filters.SimplexNoise3D
+import org.openrndr.math.Vector3
+import phenax.utils.*
+
+fun main() = application {
+  recordDuration(5.seconds())
+
+  configure {
+    width = 640
+    height = 480
+    windowResizable = false
+  }
+
+  oliveProgram {
+    val cs by liveComputeShader("<<name>>")
+
+    val outputBuffer = colorBuffer(width, height, type = ColorType.UINT8)
+
+    val size = Math.max(width, height) * 2
+    val noiseBuffer = colorBuffer(size, size, type = ColorType.UINT8)
+    val noiseFilter = SimplexNoise3D()
+    noiseFilter.scale = Vector3.ONE * 2.4
+    noiseFilter.octaves = 8
+    noiseFilter.premultipliedAlpha = true
+
+    extend {
+      noiseFilter.seed = Vector3(0.01, 0.01, 0.001)
+      noiseFilter.apply(emptyArray(), noiseBuffer)
+      cs.image("noise_texture", 1, noiseBuffer.imageBinding(0, ImageAccess.READ))
+
+      cs.uniform("seconds", seconds)
+      cs.image("output_image", 0, outputBuffer.imageBinding(0, ImageAccess.WRITE))
+      cs.execute(outputBuffer.width, outputBuffer.height, 1)
+      drawer.image(outputBuffer)
+    }
+  }
+}
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));
+}