228 lines
4.9 KiB
C
228 lines
4.9 KiB
C
#include <ultra64.h>
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#include "functions.h"
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#include "variables.h"
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u8 D_80275900[] = {0xCF, 0xAD, 0xA2, 0x90, 0x93, 0x4A, 0x83, 0xF1};
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f32 D_80275908 = BAD_DTOR;
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s32 func_80245980(f32 arg0){
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return arg0*65536.0f;
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}
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void func_802459A0(float mf[4][4], Mtx *m)
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{
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int i, j;
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int e1,e2;
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int *ai,*af;
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ai=(int *) &m->m[0][0];
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af=(int *) &m->m[2][0];
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for (i=0; i<4; i++)
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for (j=0; j<2; j++) {
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e1=func_80245980(mf[i][j*2]);
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e2=func_80245980(mf[i][j*2+1]);
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*(ai++) = ( e1 & 0xffff0000 ) | ((e2 >> 16)&0xffff);
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*(af++) = ((e1 << 16) & 0xffff0000) | (e2 & 0xffff);
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}
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}
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#pragma GLOBAL_ASM("asm/nonmatchings/core1/code_7F60/func_80245A7C.s")
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void func_80245BE4(f32 mf[4][4], f32 arg1, f32 arg2, f32 arg3, f32 arg4, f32 arg5, f32 arg6, f32 arg7) {
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s32 i, j;
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_guMtxIdentF_80245D44(mf);
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mf[0][0] = (2 * arg5) / (arg2 - arg1);
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mf[1][1] = (2 * arg5) / (arg4 - arg3);
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mf[2][0] = (arg2 + arg1) / (arg2 - arg1);
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mf[2][1] = (arg4 + arg3) / (arg4 - arg3);
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mf[2][2] = -(arg6 + arg5) / (arg6 - arg5);
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mf[2][3] = -1.0f;
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mf[3][2] = (-2 * arg6 * arg5) / (arg6 - arg5);
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mf[3][3] = 0.0f;
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for(i = 0; i < 4; i++){
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for(j = 0; j < 4; j++){
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mf[i][j] *= arg7;
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}
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}
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}
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void _guMtxIdentF_80245D44(float mf[4][4]) //static
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{
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int i, j;
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for (i=0; i<4; i++)
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for (j=0; j<4; j++)
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if (i == j) mf[i][j] = 1.0;
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else mf[i][j] = 0.0;
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}
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void func_80245DCC(f32 lmf[4][4], f32 rmf[4][4], f32 dst[4][4]) {
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s32 i, j, k;
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f32 sp1C[4][4];
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for(i = 0; i < 4; i++){
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for(j = 0; j < 4; j++){
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sp1C[i][j] = 0.0f;
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for(k = 0; k < 4; k++){
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sp1C[i][j] += lmf[i][k]*rmf[k][j];
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}
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}
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}
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for(i = 0; i < 4; i++){
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for(j = 0; j < 4; j++){
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dst[i][j] = sp1C[i][j];
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}
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}
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}
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void func_80245F34(f32 *arg0, f32 *arg1, f32 *arg2) {
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f32 inv_len;
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inv_len = 1.0f / gu_sqrtf((*arg0 * *arg0) + (*arg1 * *arg1) + (*arg2 * *arg2));
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*arg0 *= inv_len;
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*arg1 *= inv_len;
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*arg2 *= inv_len;
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}
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void func_80245FB8(float mf[4][4], u16 *perspNorm, float fovy, float aspect, float near, float far, float scale)
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{
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float cot;
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float tmp;
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int i;
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int j;
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near = (near < 1.0f) ? (1.0f) : (near);
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far = (far < (near + 100.0f)) ? (near + 100.0f) : (far);
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tmp = ((2 * near) * far) / (near - far);
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if (((tmp * scale) > 32767) || ((tmp * scale) < (-32767)))
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{
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tmp = ((tmp * scale) > 32767) ? (32767) : (-32767);
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near = ((-(tmp / scale)) * far) / ((2 * far) - (tmp / scale));
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}
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guMtxIdentF(mf);
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fovy *= BAD_DTOR;
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cot = cosf(fovy / 2) / sinf(fovy / 2);
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mf[0][0] = cot / aspect;
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mf[1][1] = cot;
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mf[2][2] = (near + far) / (near - far);
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mf[2][3] = -1;
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if (!far)
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{
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}
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mf[3][2] = ((2 * near) * far) / (near - far);
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mf[3][3] = 0;
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for (i = 0; i < 4; i++)
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{
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for (j = 0; j < 4; j++)
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{
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mf[i][j] *= scale;
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}
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}
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if (perspNorm != ((u16 *) 0))
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{
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if ((near + far) <= 2.0)
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{
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*perspNorm = (u16) 0xFFFF;
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}
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else
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{
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*perspNorm = (u16) ((2.0 * 65536.0) / (near + far));
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if ((*perspNorm) <= 0)
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{
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*perspNorm = (u16) 0x0001;
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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 sp28[4][4];
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func_80245FB8(sp28, perspNorm, fovy, aspect, near, far, scale);
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func_802459A0(sp28, m);
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}
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void func_8024632C(f32 mf[4][4], f32 arg1, f32 arg2, f32 arg3, f32 arg4) {
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f32 sp34;
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f32 sp30;
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f32 sp2C;
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f32 sp28;
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volatile f32 sp24;
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func_80245F34(&arg2, &arg3, &arg4);
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arg1 *= D_80275908;
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sp34 = sinf(arg1);
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sp30 = cosf(arg1);
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sp2C = arg2 * arg3 * (1.0f - sp30);
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sp28 = arg3 * arg4 * (1.0f - sp30);
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sp24 = (arg4 * arg2 * (1.0f - sp30));
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_guMtxIdentF_80245D44(mf);
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mf[0][0] = ((1.0f - (arg2 * arg2)) * sp30) + (arg2 * arg2);
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mf[2][1] = (sp28 - (arg2 * sp34));
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mf[1][2] = ((arg2 * sp34) + sp28);
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mf[1][1] = (((1.0f - (arg3 * arg3)) * sp30) + (arg3 * arg3));
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mf[2][0] = ((arg3 * sp34) + sp24);
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mf[0][2] = (sp24 - (arg3 * sp34));
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mf[2][2] = (((1.0f - (arg4 * arg4)) * sp30) + (arg4 * arg4));
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mf[1][0] = (sp2C - (arg4 * sp34));
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mf[0][1] = (arg4 * sp34) + sp2C;
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}
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void func_802464B0(f32 mf[4][4], f32 arg1){
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f32 c, s;
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arg1 *= D_80275908;
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_guMtxIdentF_80245D44(mf);
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c = cosf(arg1);
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mf[1][1] = c;
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mf[2][2] = c;
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s = sinf(arg1);
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mf[1][2] = s;
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mf[2][1] = -s;
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}
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void func_80246510(f32 mf[4][4], f32 arg1){
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f32 c, s;
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arg1 *= D_80275908;
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_guMtxIdentF_80245D44(mf);
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c = cosf(arg1);
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mf[0][0] = c;
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mf[2][2] = c;
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s = sinf(arg1);
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mf[2][0] = s;
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mf[0][2] = -s;
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}
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void func_80246570(f32 mf[4][4], f32 arg1){
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f32 c, s;
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arg1 *= D_80275908;
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_guMtxIdentF_80245D44(mf);
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c = cosf(arg1);
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mf[0][0] = c;
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mf[1][1] = c;
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s = sinf(arg1);
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mf[0][1] = s;
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mf[1][0] = -s;
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}
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void func_802465D0(f32 mf[4][4], f32 arg1, f32 arg2, f32 arg3){
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_guMtxIdentF_80245D44(mf);
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mf[0][0] = arg1;
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mf[1][1] = arg2;
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mf[2][2] = arg3;
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mf[3][3] = 1.0f;
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}
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void func_80246624(f32 mf[4][4], f32 arg1, f32 arg2, f32 arg3){
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_guMtxIdentF_80245D44(mf);
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mf[3][0] = arg1;
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mf[3][1] = arg2;
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mf[3][2] = arg3;
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}
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