1 files changed, 19 insertions, 0 deletions
diff --git a/src/extras/shaders/contrast.frag b/src/extras/shaders/contrast.frag
new file mode 100644
index 0000000..2d394f6
--- /dev/null
+++ b/src/extras/shaders/contrast.frag
@@ -0,0 +1,19 @@
+uniform sampler2D tex0;
+uniform vec3 u_contrastAdd;
+uniform vec3 u_contrastMult;
+
+FSIN vec4 v_color;
+FSIN vec2 v_tex0;
+FSIN float v_fog;
+
+void
+main(void)
+{
+	vec4 dst = texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));
+	vec4 color;
+	color.rgb = dst.rgb*u_contrastMult + u_contrastAdd;
+	color.a = 1.0;
+
+	FRAGCOLOR(color);
+}
+