1 files changed, 51 insertions, 0 deletions

diff --git a/assets/shaders/Cloud.vert.glsl b/assets/shaders/Cloud.vert.glsl
new file mode 100644
index 00000000..acd581fc
--- /dev/null
+++ b/assets/shaders/Cloud.vert.glsl
@@ -0,0 +1,51 @@
+/* <copyright>
+This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+</copyright> */
+
+
+#ifdef GL_ES
+precision highp float;
+#endif
+
+// attributes
+attribute vec3  a_pos;
+attribute vec2  texcoord;
+
+// uniforms
+uniform float u_time;
+uniform float u_zmin;
+uniform float u_zmax;
+uniform float u_surfaceAlpha;
+
+// matrix uniforms
+uniform mat4 u_mvMatrix;
+uniform mat4 u_projMatrix;
+
+// varying
+varying vec2    v_texCoord0;
+
+// constants
+const float zSpeed = 10.0;
+
+
+void main()
+{
+    // Transform position
+        vec4 pos = vec4(a_pos,1);
+
+        float dz = u_time*zSpeed;
+        float n = floor( dz/(u_zmax-u_zmin) );
+        dz -= n*(u_zmax - u_zmin);
+        float z = pos.z + dz;
+        if (z > u_zmax)
+        {
+                z = u_zmin + (z - u_zmax);
+        }
+        pos.z = z;
+
+        gl_Position = u_projMatrix * u_mvMatrix * pos;
+            
+    v_texCoord0 = texcoord;
+}
\ No newline at end of file