33 lines
629 B
C++
33 lines
629 B
C++
#pragma once
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#include "maths.h"
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struct vector_type4
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{
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float X;
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float Y;
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float Z;
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float W;
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};
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struct mat4_row_major
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{
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vector_type4 Row0;
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vector_type4 Row1;
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vector_type4 Row2;
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vector_type4 Row3;
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};
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class proj
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{
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public:
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static void init(float* mat4x3, float d, float centerX, float centerY);
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static void matrix_vector_multiply(mat4_row_major* mat, vector_type* vec, vector_type* dstVec);
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static float z_distance(vector_type* vec);
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static void xform_to_2d(vector_type* vec, int* dst);
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static void recenter(float centerX, float centerY);
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private:
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static mat4_row_major matrix;
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static float d_, centerx, centery;
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};
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