- double mdata[16];
-
- mdata[0] = right_dir.x;
- mdata[4] = right_dir.y;
- mdata[8] = right_dir.z;
-
- mdata[1] = right_dir.y*look_dir.z-right_dir.z*look_dir.y;
- mdata[5] = right_dir.z*look_dir.x-right_dir.x*look_dir.z;
- mdata[9] = right_dir.x*look_dir.y-right_dir.y*look_dir.x;
-
- mdata[2] = -look_dir.x;
- mdata[6] = -look_dir.y;
- mdata[10] = -look_dir.z;
-
- mdata[12] = -position.x*mdata[0]-position.y*mdata[4]-position.z*mdata[8];
- mdata[13] = -position.x*mdata[1]-position.y*mdata[5]-position.z*mdata[9];
- mdata[14] = -position.x*mdata[2]-position.y*mdata[6]-position.z*mdata[10];
-
- mdata[3] = 0;
- mdata[7] = 0;
- mdata[11] = 0;
- mdata[15] = 1;
-
- matrix = mdata;
+ Vector4 columns[4];
+ columns[0] = compose(right_dir, 0.0f);
+ columns[1] = compose(cross(right_dir, look_dir), 0.0f);
+ columns[2] = compose(-look_dir, 0.0f);
+ columns[3] = compose(position, 1.0f);
+ object_matrix = Matrix::from_columns(columns);
+ view_matrix = invert(object_matrix);