diff options
Diffstat (limited to 'Gem/examples/10.glsl/game.frag')
-rw-r--r-- | Gem/examples/10.glsl/game.frag | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/Gem/examples/10.glsl/game.frag b/Gem/examples/10.glsl/game.frag deleted file mode 100644 index 9b5800d..0000000 --- a/Gem/examples/10.glsl/game.frag +++ /dev/null @@ -1,30 +0,0 @@ -// Cyrille Henry 2007 - -uniform sampler2D texture; - -const float dx = 1./500.; // change to gemwin dim - -void main (void) -{ - vec2 tmp = (gl_TextureMatrix[0] * gl_TexCoord[0]).st; - - float x = tmp.s; - float y = tmp.t; - - vec4 c; - c = texture2D(texture, vec2(x-dx, y-dx)); - c += texture2D(texture, vec2(x, y-dx)); - c += texture2D(texture, vec2(x+dx, y-dx)); - c += texture2D(texture, vec2(x-dx, y)); - c += texture2D(texture, vec2(x+dx, y)); - c += texture2D(texture, vec2(x-dx, y+dx)); - c += texture2D(texture, vec2(x, y+dx)); - c += texture2D(texture, vec2(x+dx, y+dx)); - - vec4 c1 = texture2D(texture, vec2(x, y)); - - c.rgb = vec3(step(2.5-c1.r,c.r)*step(c.r,3.5)); - c.a = 1.; - - gl_FragColor = c; -} |