- // calculate world to filter matrix
- Matrix4x4_CreateFromQuakeEntity(&matrix, wl->origin[0], wl->origin[1], wl->origin[2], wl->angles[0], wl->angles[1], wl->angles[2], lightradius);
- Matrix4x4_Invert_Simple(&matrix_worldtofilter, &matrix);
- // calculate world to attenuationxyz/xy matrix
- Matrix4x4_CreateFromQuakeEntity(&matrix, 0.5, 0.5, 0.5, 0, 0, 0, 0.5);
- Matrix4x4_Concat(&matrix_worldtoattenuationxyz, &matrix, &matrix_worldtofilter);
- // calculate world to attenuationz matrix
- matrix.m[0][0] = 0;matrix.m[0][1] = 0;matrix.m[0][2] = 0.5;matrix.m[0][3] = 0.5;
- matrix.m[1][0] = 0;matrix.m[1][1] = 0;matrix.m[1][2] = 0 ;matrix.m[1][3] = 0.5;
- matrix.m[2][0] = 0;matrix.m[2][1] = 0;matrix.m[2][2] = 0 ;matrix.m[2][3] = 0.5;
- matrix.m[3][0] = 0;matrix.m[3][1] = 0;matrix.m[3][2] = 0 ;matrix.m[3][3] = 1;
- Matrix4x4_Concat(&matrix_worldtoattenuationz, &matrix, &matrix_worldtofilter);
-