diff options
author | Brian Paul <[email protected]> | 2008-08-16 09:36:46 -0600 |
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committer | Brian Paul <[email protected]> | 2008-08-16 09:36:46 -0600 |
commit | c0dd9122fdedd4bcab5bc0b3bbb490e6b62fac83 (patch) | |
tree | ac114b79c5790b10c0a8904ca79dfea5480c5617 /progs/glsl/reflect.vert | |
parent | ce00d232f3c01c71fb659568e9b58da1f24b2519 (diff) |
remove .txt suffix from shader source files
Diffstat (limited to 'progs/glsl/reflect.vert')
-rw-r--r-- | progs/glsl/reflect.vert | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/progs/glsl/reflect.vert b/progs/glsl/reflect.vert new file mode 100644 index 00000000000..402be38bf7b --- /dev/null +++ b/progs/glsl/reflect.vert @@ -0,0 +1,19 @@ +// Vertex shader for cube-texture reflection mapping +// Brian Paul + + +varying vec3 normal; + +void main() +{ + vec3 n = gl_NormalMatrix * gl_Normal; + vec3 u = normalize(vec3(gl_ModelViewMatrix * gl_Vertex)); + float two_n_dot_u = 2.0 * dot(n, u); + vec4 f; + f.xyz = u - n * two_n_dot_u; + + // outputs + normal = n; + gl_TexCoord[0] = gl_TextureMatrix[0] * f; + gl_Position = ftransform(); +} |