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authoraap <aap@papnet.eu>2020-08-13 18:14:24 +0200
committeraap <aap@papnet.eu>2020-08-13 18:14:24 +0200
commitafed831aeda5415f1d99612d0f14541fdd34720f (patch)
treeeda5ea030af2ed1b76c2c1e645974fdb4c7b6246 /src/extras/shaders/contrast.frag
parentfix render poly bug (diff)
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Diffstat (limited to '')
-rw-r--r--src/extras/shaders/contrast.frag18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/extras/shaders/contrast.frag b/src/extras/shaders/contrast.frag
new file mode 100644
index 00000000..d6dec478
--- /dev/null
+++ b/src/extras/shaders/contrast.frag
@@ -0,0 +1,18 @@
+uniform sampler2D tex0;
+uniform vec3 u_contrastAdd;
+uniform vec3 u_contrastMult;
+
+in vec4 v_color;
+in vec2 v_tex0;
+in float v_fog;
+
+out vec4 color;
+
+void
+main(void)
+{
+ vec4 dst = texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));
+ color.rgb = dst.rgb*u_contrastMult + u_contrastAdd;
+ color.a = 1.0f;
+}
+