add a simple but nice example of convolution filters in glsl

shows basics of image processing with glsl

1 files changed, 5 insertions, 0 deletions

diff --git a/progs/glsl/convolution.vert b/progs/glsl/convolution.vert
new file mode 100644
index 0000000000..752c54671c
--- /dev/null
+++ b/progs/glsl/convolution.vert
@@ -0,0 +1,5 @@
+void main() {
+    gl_FrontColor = gl_Color;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+}