1 files changed, 28 insertions, 0 deletions

diff --git a/src/extras/shaders/colourfilterVC.frag b/src/extras/shaders/colourfilterVC.frag
new file mode 100644
index 00000000..e19a8600
--- /dev/null
+++ b/src/extras/shaders/colourfilterVC.frag
@@ -0,0 +1,28 @@
+uniform sampler2D tex0;
+uniform vec4 u_blurcolor;
+
+in vec4 v_color;
+in vec2 v_tex0;
+in float v_fog;
+
+out vec4 color;
+
+void
+main(void)
+{
+	float a = u_blurcolor.a;
+
+	vec4 doublec = clamp(u_blurcolor*2, 0.0, 1.0);
+	vec4 dst = texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));
+	vec4 prev = dst;
+	for(int i = 0; i < 5; i++){
+//		vec4 doublec = clamp(u_blurcolor*2, 0.0, 1.0);
+		vec4 tmp = dst*(1.0-a) + prev*doublec*a;
+		tmp += prev*u_blurcolor;
+		tmp += prev*u_blurcolor;
+		prev = clamp(tmp, 0.0, 1.0);
+	}
+	color.rgb = prev.rgb;
+	color.a = 1.0f;
+}
+