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-rw-r--r--assets/shaders/Cloud.vert.glsl55
1 files changed, 28 insertions, 27 deletions
diff --git a/assets/shaders/Cloud.vert.glsl b/assets/shaders/Cloud.vert.glsl
index 95c14132..d129e267 100644
--- a/assets/shaders/Cloud.vert.glsl
+++ b/assets/shaders/Cloud.vert.glsl
@@ -1,24 +1,25 @@
1/* <copyright> 1/* <copyright>
2Copyright (c) 2012, Motorola Mobility, Inc 2Copyright (c) 2012, Motorola Mobility LLC.
3All Rights Reserved. 3All Rights Reserved.
4BSD License.
5 4
6Redistribution and use in source and binary forms, with or without 5Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are met: 6modification, are permitted provided that the following conditions are met:
8 7
9 - Redistributions of source code must retain the above copyright notice, 8* Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer. 9 this list of conditions and the following disclaimer.
11 - Redistributions in binary form must reproduce the above copyright 10
12 notice, this list of conditions and the following disclaimer in the 11* Redistributions in binary form must reproduce the above copyright notice,
13 documentation and/or other materials provided with the distribution. 12 this list of conditions and the following disclaimer in the documentation
14 - Neither the name of Motorola Mobility nor the names of its contributors 13 and/or other materials provided with the distribution.
15 may be used to endorse or promote products derived from this software 14
16 without specific prior written permission. 15* Neither the name of Motorola Mobility LLC nor the names of its
16 contributors may be used to endorse or promote products derived from this
17 software without specific prior written permission.
17 18
18THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
@@ -34,7 +35,7 @@ precision highp float;
34#endif 35#endif
35 36
36// attributes 37// attributes
37attribute vec3 a_pos; 38attribute vec3 a_pos;
38attribute vec2 texcoord; 39attribute vec2 texcoord;
39 40
40// uniforms 41// uniforms
@@ -48,7 +49,7 @@ uniform mat4 u_mvMatrix;
48uniform mat4 u_projMatrix; 49uniform mat4 u_projMatrix;
49 50
50// varying 51// varying
51varying vec2 v_texCoord0; 52varying vec2 v_texCoord0;
52 53
53// constants 54// constants
54const float zSpeed = 10.0; 55const float zSpeed = 10.0;
@@ -57,19 +58,19 @@ const float zSpeed = 10.0;
57void main() 58void main()
58{ 59{
59 // Transform position 60 // Transform position
60 vec4 pos = vec4(a_pos,1); 61 vec4 pos = vec4(a_pos,1);
61 62
62 float dz = u_time*zSpeed; 63 float dz = u_time*zSpeed;
63 float n = floor( dz/(u_zmax-u_zmin) ); 64 float n = floor( dz/(u_zmax-u_zmin) );
64 dz -= n*(u_zmax - u_zmin); 65 dz -= n*(u_zmax - u_zmin);
65 float z = pos.z + dz; 66 float z = pos.z + dz;
66 if (z > u_zmax) 67 if (z > u_zmax)
67 { 68 {
68 z = u_zmin + (z - u_zmax); 69 z = u_zmin + (z - u_zmax);
69 } 70 }
70 pos.z = z; 71 pos.z = z;
71 72
72 gl_Position = u_projMatrix * u_mvMatrix * pos; 73 gl_Position = u_projMatrix * u_mvMatrix * pos;
73 74
74 v_texCoord0 = texcoord; 75 v_texCoord0 = texcoord;
75} 76}