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authorEric Guzman2012-02-13 10:29:49 -0800
committerEric Guzman2012-02-13 10:29:49 -0800
commite4893f7d3c3b9bd7967973197c3ffb5d3a075c91 (patch)
treef3d4fd9d96ba0dcf846fbf66153fb443bd60f767 /assets/shaders/radialGradient.frag.glsl
parentef032412216d437ce1c7dfc9050ab41adf0594c0 (diff)
parente142611e22718b1f1d1696902ad9161ec5f33f98 (diff)
downloadninja-e4893f7d3c3b9bd7967973197c3ffb5d3a075c91.tar.gz
Merge branch 'refs/heads/master' into TreeComponents
Diffstat (limited to 'assets/shaders/radialGradient.frag.glsl')
-rw-r--r--assets/shaders/radialGradient.frag.glsl51
1 files changed, 51 insertions, 0 deletions
diff --git a/assets/shaders/radialGradient.frag.glsl b/assets/shaders/radialGradient.frag.glsl
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1/* <copyright>
2This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
3No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
4(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
5</copyright> */
6
7#ifdef GL_ES
8precision highp float;
9#endif
10
11uniform vec4 u_color1;
12uniform vec4 u_color2;
13uniform vec4 u_color3;
14uniform vec4 u_color4;
15uniform float u_colorStop1;
16uniform float u_colorStop2;
17uniform float u_colorStop3;
18uniform float u_colorStop4;
19uniform vec2 u_cos_sin_angle;
20//uniform int u_colorCount; // currently using all 4
21
22varying vec2 v_uv;
23
24void main(void)
25{
26 vec2 pt = vec2( v_uv.x - 0.5, v_uv.y - 0.5);
27 float t = sqrt( dot(pt, pt) );
28
29 vec4 color;
30 if (t < u_colorStop1)
31 color = u_color1;
32 else if (t < u_colorStop2)
33 {
34 float tLocal = (t - u_colorStop1)/(u_colorStop2 - u_colorStop1);
35 color = mix(u_color1,u_color2,tLocal);
36 }
37 else if (t < u_colorStop3)
38 {
39 float tLocal = (t - u_colorStop2)/(u_colorStop3 - u_colorStop2);
40 color = mix(u_color2,u_color3,tLocal);
41 }
42 else if (t < u_colorStop4)
43 {
44 float tLocal = (t - u_colorStop3)/(u_colorStop4 - u_colorStop3);
45 color = mix(u_color3,u_color4,tLocal);
46 }
47 else
48 color = u_color4;
49
50 gl_FragColor = color;
51}