going to sleep

[ld42_outofspace] / sdr / field.te.glsl

diff --git a/sdr/field.te.glsl b/sdr/field.te.glsl
new file mode 100644 (file)
index 0000000..cb01515
--- /dev/null
+++ b/sdr/field.te.glsl
@@ -0,0 +1,22 @@
+#version 410 compatibility
+
+layout(quads, ccw) in;
+
+void main()
+{
+       vec4 v1 = mix(gl_in[0].gl_Position, gl_in[1].gl_Position, gl_TessCoord.x);
+       vec4 v2 = mix(gl_in[3].gl_Position, gl_in[2].gl_Position, gl_TessCoord.x);
+       vec4 pos = mix(v1, v2, gl_TessCoord.y);
+
+       vec4 top0 = mix(gl_in[0].gl_TexCoord[0], gl_in[1].gl_TexCoord[0], gl_TessCoord.x);
+       vec4 bot0 = mix(gl_in[3].gl_TexCoord[0], gl_in[2].gl_TexCoord[0], gl_TessCoord.x);
+       vec4 res0 = mix(top0, bot0, gl_TessCoord.y);
+
+       vec4 top1 = mix(gl_in[0].gl_TexCoord[1], gl_in[1].gl_TexCoord[1], gl_TessCoord.x);
+       vec4 bot1 = mix(gl_in[3].gl_TexCoord[1], gl_in[2].gl_TexCoord[1], gl_TessCoord.x);
+       vec4 res1 = mix(top1, bot1, gl_TessCoord.y);
+
+       gl_Position = gl_ModelViewProjectionMatrix * pos;
+       gl_TexCoord[0] = res0;
+       gl_TexCoord[1] = res1;
+}