diff options
Diffstat (limited to 'packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag')
-rw-r--r-- | packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag b/packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag index 9b5800d0..b71a3e16 100644 --- a/packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag +++ b/packages/noncvs/windows/extra/Gem/examples/10.glsl/game.frag @@ -1,30 +1,30 @@ -// 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; -} +// 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;
+}
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