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https://github.com/zeldaret/oot
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Random
174af7384d
* cleanup libultra * fixes - use quotes instead of <> for includes - add macros for zelda specific thread priorities - fix Makefile - properly format the remaining pfs structs * fix button macros + add CHECK_BTN_ANY/CHECK_BTN_ALL * remove ULTRA_ABS * fix includes * update z_player.c/z_lib.c + run format.sh * merge upstream/master * fix include in En_Goroiwa * fix includes
37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
#include "global.h"
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void guPerspectiveF(f32 mf[4][4], u16* perspNorm, f32 fovy, f32 aspect, f32 near, f32 far, f32 scale) {
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f32 yscale;
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s32 row;
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s32 col;
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guMtxIdentF(mf);
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fovy *= GU_PI / 180.0;
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yscale = cosf(fovy / 2) / sinf(fovy / 2);
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mf[0][0] = yscale / aspect;
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mf[1][1] = yscale;
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mf[2][2] = (near + far) / (near - far);
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mf[2][3] = -1;
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mf[3][2] = 2 * near * far / (near - far);
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mf[3][3] = 0.0f;
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for (row = 0; row < 4; row++) {
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for (col = 0; col < 4; col++) {
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mf[row][col] *= scale;
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}
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}
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if (perspNorm != NULL) {
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if (near + far <= 2.0) {
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*perspNorm = 65535;
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} else {
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*perspNorm = (f64)(1 << 17) / (near + far);
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if (*perspNorm <= 0) {
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*perspNorm = 1;
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}
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}
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}
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}
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void guPerspective(Mtx* m, u16* perspNorm, f32 fovy, f32 aspect, f32 near, f32 far, f32 scale) {
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f32 mat[4][4];
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guPerspectiveF(mat, perspNorm, fovy, aspect, near, far, scale);
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guMtxF2L(mat, m);
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}
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