spiffier

git-svn-id: http://svn.net-core.org/repos/t-engine4@5408 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/gfx/shaders/cloud_anim.frag

-#extension GL_EXT_gpu_shader4: enable
-
 uniform sampler2D tex;
 uniform float tick;
 uniform vec2 mapCoord;
@@ -12,8 +10,28 @@ float rand(vec2 co){
 void main(void)
 {
 	vec2 uv = gl_TexCoord[0].xy;
-	vec2 r = rand(mapCoord / texSize);
+	vec2 r = vec2(rand(mapCoord / texSize));
 	vec4 c = texture2D(tex, uv);
+
+
+		int blursize = 2;
+		vec2 offset = 1.0/texSize;
+
+		// Center Pixel
+		vec4 sample = vec4(0.0,0.0,0.0,0.0);
+		float factor = ((float(blursize)*2.0)+1.0);
+		factor = factor*factor;
+
+		for(int i = -blursize; i <= blursize; i++)
+		{
+			for(int j = -blursize; j <= blursize; j++)
+			{
+				sample += texture2D(tex, vec2(gl_TexCoord[0].xy+vec2(float(i)*offset.x, float(j)*offset.y)));
+			}
+		}
+		sample /= (float(blursize)*2.0) * (float(blursize)*2.0);
+		c = sample;
+
 	c.a *= 0.3 + (((1 + r.x * sin(tick / 1000 + mapCoord.y)) / 2) * ((1 + r.y * cos(tick / 1000 + mapCoord.x)) / 2)) * 0.7;
 	gl_FragColor = c;
 }