X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=ld42_outofspace;a=blobdiff_plain;f=sdr%2Ffield.te.glsl;fp=sdr%2Ffield.te.glsl;h=cb0151517a07cd6c8ca6271b421bbe332e9ed005;hp=0000000000000000000000000000000000000000;hb=89df915930177f3bc5f71095562c6e15074be220;hpb=b8200afc389ccca3e86463eb48c0563c0e093552

diff --git a/sdr/field.te.glsl b/sdr/field.te.glsl
new file mode 100644
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;
+}