30 lines
582 B
GLSL
30 lines
582 B
GLSL
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// -*-C++-*-
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//
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// Chris Ringeval (Novermber 2021)
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//
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#version 120
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uniform vec3 fg_CameraWorldUp;
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uniform mat4 osg_ViewMatrix;
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varying vec3 eye2VertInEyeSpace;
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varying vec3 eye2ZenithInEyeSpace;
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varying vec3 eye2MoonInEyeSpace;
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uniform vec3 fg_MoonDirection;
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void main()
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{
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eye2VertInEyeSpace = (gl_ModelViewMatrix * gl_Vertex - vec4(0.0,0.0,0.0,1.0)).xyz;
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eye2ZenithInEyeSpace = (osg_ViewMatrix * vec4(fg_CameraWorldUp,0.0)).xyz;
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eye2MoonInEyeSpace = fg_MoonDirection;
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gl_Position = ftransform();
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gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
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}
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