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31 lines
754 B
GLSL
31 lines
754 B
GLSL
attribute vec2 a_normal;
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attribute vec2 a_colorTexCoords;
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uniform vec3 u_position;
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uniform float u_azimut;
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uniform mat4 u_modelView;
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uniform mat4 u_projection;
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uniform mat4 u_pivotTransform;
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varying vec2 v_colorTexCoords;
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void main()
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{
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float sinV = sin(u_azimut);
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float cosV = cos(u_azimut);
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mat4 rotation;
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rotation[0] = vec4(cosV, sinV, 0.0, 0.0);
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rotation[1] = vec4(-sinV, cosV, 0.0, 0.0);
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rotation[2] = vec4(0.0, 0.0, 1.0, 0.0);
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rotation[3] = vec4(0.0, 0.0, 0.0, 1.0);
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vec4 pos = vec4(u_position, 1.0) * u_modelView;
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vec4 normal = vec4(a_normal, 0, 0);
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vec4 shiftedPos = normal * rotation + pos;
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gl_Position = applyPivotTransform(shiftedPos * u_projection, u_pivotTransform, 0.0);
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v_colorTexCoords = a_colorTexCoords;
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}
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