added cheesey snow

1 files changed, 26 insertions, 0 deletions

diff --git a/shaders/snow.geom b/shaders/snow.geom
new file mode 100644
index 0000000..116a59d
--- /dev/null
+++ b/shaders/snow.geom
@@ -0,0 +1,26 @@
+#version 150
+layout(points) in;
+layout(triangle_strip, max_vertices=28) out;
+
+out float rad ;
+
+void vertex( vec3 pos ) {
+    gl_Position = gl_in[0].gl_Position + vec4(pos,0.0) ;
+    EmitVertex() ;
+}
+
+void main( ) {
+    float r = 0.008 ;
+    float th = 0.00 ;
+    for( ; th < 6.3 ; th += 0.5 ) {
+        rad = 3 ;
+        vertex( vec3(r*sin(th),r*cos(th),0.0) ) ;
+        rad = 0.0 ;
+        vertex( vec3(0.0,0.0,0.0) ) ;
+    }
+    th = 0 ;
+    rad = 3 ;
+    vertex( vec3(r*sin(th),r*cos(th),0.0) ) ;
+    // vertex( vector[0] ) ;
+    EndPrimitive();
+}