X-Git-Url: http://git.tdb.fi/?p=libs%2Fdemoscene.git;a=blobdiff_plain;f=data%2Ffilmgrain.glsl;fp=data%2Ffilmgrain.glsl;h=9ae3d8fdc1f4ef960fef70fade18296e36968170;hp=0000000000000000000000000000000000000000;hb=77d0c7ac9e3ebe1cecaf0c84e1501d3b6459055f;hpb=1e3954a988c6d6d946260019f25a4ad3262e01c4

diff --git a/data/filmgrain.glsl b/data/filmgrain.glsl
new file mode 100644
index 0000000..9ae3d8f
--- /dev/null
+++ b/data/filmgrain.glsl
@@ -0,0 +1,17 @@
+import postprocess;
+
+uniform sampler2DArray grain;
+uniform GrainParams
+{
+	float coarseness;
+	float strength;
+};
+uniform int grain_layer;
+
+#pragma MSP stage(fragment)
+void main()
+{
+	vec3 gcoord = vec3(gl_FragCoord.xy/textureSize(grain, 0).xy/coarseness, grain_layer);
+	vec4 incoming = texture(source, texcoord);
+	frag_color = vec4(incoming.rgb*mix(1.0, texture(grain, gcoord).r, strength), incoming.a);
+}