X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=demos%2Fforestpond%2Fdata%2Ffluidsim_fill.glsl;fp=demos%2Fforestpond%2Fdata%2Ffluidsim_fill.glsl;h=61f1f32045f4a9ee07c13a90226ce20f2cfca6c0;hb=7efe2d35f5d53c0f086a1b85b7d3dea6a6c709ab;hp=0000000000000000000000000000000000000000;hpb=813301f2b342cd166461b2d266023d0292ba0f87;p=libs%2Fgl.git

diff --git a/demos/forestpond/data/fluidsim_fill.glsl b/demos/forestpond/data/fluidsim_fill.glsl
new file mode 100644
index 00000000..61f1f320
--- /dev/null
+++ b/demos/forestpond/data/fluidsim_fill.glsl
@@ -0,0 +1,18 @@
+import msp_interface;
+
+#pragma MSP stage(compute)
+layout(local_size_x=8, local_size_y=8) in;
+
+uniform sampler2D bottom;
+layout(r32f) uniform image2D surface_out;
+layout(rg32f) uniform image2D velocity_out;
+layout(r32f) uniform image2D clamping_out;
+
+void main()
+{
+	ivec2 coord = ivec2(gl_GlobalInvocationID.xy);
+	float surface = max(texelFetch(bottom, coord, 0).x, 0.0);
+	imageStore(surface_out, coord, vec4(surface, 0.0, 0.0, 0.0));
+	imageStore(velocity_out, coord, vec4(0.0));
+	imageStore(clamping_out, coord, vec4(0.0));
+}