25 lines
581 B
GLSL
25 lines
581 B
GLSL
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// osgOcean uniforms
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// -------------------
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uniform float osgOcean_WaterHeight;
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// ------------------
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uniform mat4 osg_ViewMatrixInverse;
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uniform mat4 osg_ViewMatrix;
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varying vec4 vWorldVertex;
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void main(void)
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{
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// Transform the vertex into world space
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vWorldVertex = (osg_ViewMatrixInverse * gl_ModelViewMatrix) * gl_Vertex;
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vWorldVertex.xyzw /= vWorldVertex.w;
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// Project the vertex onto the ocean plane
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vec4 projectedVertex = vWorldVertex;
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projectedVertex.z = osgOcean_WaterHeight;
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gl_Position = (gl_ProjectionMatrix * osg_ViewMatrix) * projectedVertex;
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return;
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}
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