post processing light

data/shader/multitexture.frag

@@ -0,0 +1,20 @@
+#version 120
+
+uniform sampler2D tex0;
+uniform sampler2D tex1;
+
+varying vec3 vertex;
+varying vec2 uv;
+
+void main()
+{
+  vec3 color = texture2D(tex0, uv).rgb;
+	vec3 current = texture2D(tex1, uv).rgb;
+	float a = length(color) - length(current);
+	if (a > 0.3) {
+		color = mix(vec3(a/3.0), current, color);
+	} else {
+		color = current;
+	}
+  gl_FragColor = vec4(texture2D(tex0, uv).xyz + texture2D(tex1, uv).xyz, 1.0);
+}

data/shader/multitexture.vert

@@ -0,0 +1,13 @@
+#version 120
+
+uniform vec2 uvScale;
+
+varying vec3 vertex;
+varying vec2 uv;
+
+void main()
+{
+  gl_Position = gl_Vertex;
+  vertex = gl_Position.xyz;
+  uv = uvScale * (0.5 + vertex.xy / 2.0);
+}

data/shader/particle.frag

@@ -42,8 +42,8 @@ void main()
     //v /= 1.0 + max(0.0, min(35.0*(decay-0.2), 1.0)) + 10.0 * explCenterDist;
     v /= 1.0 + 10.0 * explCenterDist;
 
-    gl_FragColor = vec4(hsv2rgb(vec3(h, s, v)), 1.0);
+    gl_FragColor = vec4(hsv2rgb(vec3(h, s, v)), v*0.2);
 
     //gl_FragColor = vec4(1.0, 1.0, 0.0, 1.0);
     //gl_FragColor.rgb = vec3(0.5+0.5*(a/pi));
-}
+}

data/shader/postprocess.frag

@@ -1,7 +1,6 @@
 #version 120
 
-uniform sampler2D tex0;
-uniform sampler2D tex1;
+uniform sampler2D tex;
 
 varying vec3 vertex;
 varying vec2 uv;
@@ -18,9 +17,9 @@ void main()
 	vec2 texCoord = uv.xy - float(int(gaussRadius/2)) * scale;
 	vec3 color = vec3(0.0, 0.0, 0.0); 
 	for (int i=0; i<gaussRadius; ++i) { 
-		color += gaussFilter[i] * texture2D(tex0, texCoord).xyz;
+		color += gaussFilter[i] * texture2D(tex, texCoord).xyz;
 		texCoord += scale;
 	}
 
   gl_FragColor = vec4(color, 1.0);
-}
+}