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authorRay <raysan5@gmail.com>2015-09-03 01:49:58 +0200
committerRay <raysan5@gmail.com>2015-09-03 01:49:58 +0200
commit77558eec0caf0736fa36c96b5807d928317d3dd7 (patch)
tree860d9e77d27729fa2572aa8207d77f8def083ccd /examples/resources/shaders/shapes_grayscale.fs
parent858ccb350dab317483bf58a5852f88df0a49a7b2 (diff)
parentd05acb1b6878b101ecbde0aeb3aa1bcf80b960af (diff)
downloadraylib-1.3.0.tar.gz
raylib-1.3.0.zip
Merge pull request #28 from raysan5/develop1.3.0-installer1.3.0
Integrating Develop branch
Diffstat (limited to 'examples/resources/shaders/shapes_grayscale.fs')
-rw-r--r--examples/resources/shaders/shapes_grayscale.fs15
1 files changed, 15 insertions, 0 deletions
diff --git a/examples/resources/shaders/shapes_grayscale.fs b/examples/resources/shaders/shapes_grayscale.fs
new file mode 100644
index 00000000..1b778871
--- /dev/null
+++ b/examples/resources/shaders/shapes_grayscale.fs
@@ -0,0 +1,15 @@
+#version 110
+
+uniform sampler2D texture0;
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+void main()
+{
+ vec4 base = texture2D(texture0, fragTexCoord)*fragColor;
+
+ // Convert to grayscale using NTSC conversion weights
+ float gray = dot(base.rgb, vec3(0.299, 0.587, 0.114));
+
+ gl_FragColor = vec4(gray, gray, gray, base.a);
+} \ No newline at end of file