36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
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#version 330 core
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layout (location = 0) in vec3 in_Position;
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layout (location = 1) in vec3 in_Normal;
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/*uniform float time;*/
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uniform float scale;
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uniform vec3 rotation;
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out vec3 normal;
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mat4 rotationMatrix(vec3 axis, float angle) {
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axis = normalize(axis);
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float s = sin(angle);
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float c = cos(angle);
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float oc = 1.0 - c;
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return mat4(oc * axis.x * axis.x + c, oc * axis.x * axis.y - axis.z * s, oc * axis.z * axis.x + axis.y * s, 0.0,
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oc * axis.x * axis.y + axis.z * s, oc * axis.y * axis.y + c, oc * axis.y * axis.z - axis.x * s, 0.0,
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oc * axis.z * axis.x - axis.y * s, oc * axis.y * axis.z + axis.x * s, oc * axis.z * axis.z + c, 0.0,
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0.0, 0.0, 0.0, 1.0);
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}
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mat4 viewMatrix(vec3 rotation) {
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mat4 rotationX = rotationMatrix(vec3(1, 0, 0), rotation.x);
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mat4 rotationY = rotationMatrix(vec3(0, 1, 0), rotation.y);
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mat4 rotationZ = rotationMatrix(vec3(0, 0, 1), rotation.z);
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return rotationX * rotationY * rotationZ;
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}
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void main() {
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mat4 view = viewMatrix(rotation);
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normal = (vec4(in_Normal, 1.0) * view).xyz;
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gl_Position = vec4(in_Position * scale, 1.0) * view;
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}
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