diff options
Diffstat (limited to 'assets/shaders/radialGradient.frag.glsl')
-rw-r--r-- | assets/shaders/radialGradient.frag.glsl | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/assets/shaders/radialGradient.frag.glsl b/assets/shaders/radialGradient.frag.glsl index 1544e457..58b43a74 100644 --- a/assets/shaders/radialGradient.frag.glsl +++ b/assets/shaders/radialGradient.frag.glsl | |||
@@ -32,44 +32,44 @@ POSSIBILITY OF SUCH DAMAGE. | |||
32 | precision highp float; | 32 | precision highp float; |
33 | #endif | 33 | #endif |
34 | 34 | ||
35 | uniform vec4 u_color1; | 35 | uniform vec4 u_color1; |
36 | uniform vec4 u_color2; | 36 | uniform vec4 u_color2; |
37 | uniform vec4 u_color3; | 37 | uniform vec4 u_color3; |
38 | uniform vec4 u_color4; | 38 | uniform vec4 u_color4; |
39 | uniform float u_colorStop1; | 39 | uniform float u_colorStop1; |
40 | uniform float u_colorStop2; | 40 | uniform float u_colorStop2; |
41 | uniform float u_colorStop3; | 41 | uniform float u_colorStop3; |
42 | uniform float u_colorStop4; | 42 | uniform float u_colorStop4; |
43 | uniform vec2 u_cos_sin_angle; | 43 | uniform vec2 u_cos_sin_angle; |
44 | //uniform int u_colorCount; // currently using all 4 | 44 | //uniform int u_colorCount; // currently using all 4 |
45 | 45 | ||
46 | varying vec2 v_uv; | 46 | varying vec2 v_uv; |
47 | 47 | ||
48 | void main(void) | 48 | void main(void) |
49 | { | 49 | { |
50 | vec2 pt = vec2( v_uv.x - 0.5, v_uv.y - 0.5); | 50 | vec2 pt = vec2( v_uv.x - 0.5, v_uv.y - 0.5); |
51 | float t = sqrt( dot(pt, pt) ); | 51 | float t = sqrt( dot(pt, pt) ); |
52 | 52 | ||
53 | vec4 color; | 53 | vec4 color; |
54 | if (t < u_colorStop1) | 54 | if (t < u_colorStop1) |
55 | color = u_color1; | 55 | color = u_color1; |
56 | else if (t < u_colorStop2) | 56 | else if (t < u_colorStop2) |
57 | { | 57 | { |
58 | float tLocal = (t - u_colorStop1)/(u_colorStop2 - u_colorStop1); | 58 | float tLocal = (t - u_colorStop1)/(u_colorStop2 - u_colorStop1); |
59 | color = mix(u_color1,u_color2,tLocal); | 59 | color = mix(u_color1,u_color2,tLocal); |
60 | } | 60 | } |
61 | else if (t < u_colorStop3) | 61 | else if (t < u_colorStop3) |
62 | { | 62 | { |
63 | float tLocal = (t - u_colorStop2)/(u_colorStop3 - u_colorStop2); | 63 | float tLocal = (t - u_colorStop2)/(u_colorStop3 - u_colorStop2); |
64 | color = mix(u_color2,u_color3,tLocal); | 64 | color = mix(u_color2,u_color3,tLocal); |
65 | } | 65 | } |
66 | else if (t < u_colorStop4) | 66 | else if (t < u_colorStop4) |
67 | { | 67 | { |
68 | float tLocal = (t - u_colorStop3)/(u_colorStop4 - u_colorStop3); | 68 | float tLocal = (t - u_colorStop3)/(u_colorStop4 - u_colorStop3); |
69 | color = mix(u_color3,u_color4,tLocal); | 69 | color = mix(u_color3,u_color4,tLocal); |
70 | } | 70 | } |
71 | else | 71 | else |
72 | color = u_color4; | 72 | color = u_color4; |
73 | 73 | ||
74 | gl_FragColor = color; | 74 | gl_FragColor = color; |
75 | } | 75 | } |