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[ADD] Adding first support to 3D functions, sample code will follow.
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N0NameN0
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2 changed files with 179 additions and 1 deletions
168
GRRLIB/GRRLIB/GRRLIB_3D.c
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168
GRRLIB/GRRLIB/GRRLIB_3D.c
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#include <grrlib.h>
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/**
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* Set the BackGround Parameter when screen is cleared.
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* @param r Red component.
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* @param g Green component.
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* @param b Blue component.
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* @param a Alpha component.
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*/
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void GRRLIB_setBackgroundColour(u8 r, u8 g, u8 b, u8 a) {
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GX_SetCopyClear((GXColor){ r, g, b, a }, GX_MAX_Z24);
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}
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// user should not directly modify these
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guVector _GRR_cam = {0.0F, 0.0F, 0.0F},
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_GRR_up = {0.0F, 1.0F, 0.0F},
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_GRR_look = {0.0F, 0.0F, -100.0F};
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Mtx _GRR_view;
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/**
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* Set the camera parameter (contributed my chris_c aka DaShAmAn).
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* @param posx x posision of the cam.
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* @param posy y posision of the cam.
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* @param posz z posision of the cam.
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* @param upx Alpha component.
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* @param upy Alpha component.
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* @param upz Alpha component.
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* @param lookx x up posision of the cam.
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* @param looky y up posision of the cam.
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* @param lookz z up posision of the cam.
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*/
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void GRRLIB_camera3dSettings(f32 posx, f32 posy, f32 posz,
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f32 upx, f32 upy, f32 upz,
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f32 lookx, f32 looky, f32 lookz) {
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_GRR_cam.x=posx;
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_GRR_cam.y=posy;
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_GRR_cam.z=posz;
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_GRR_up.x=upx;
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_GRR_up.y=upy;
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_GRR_up.z=upz;
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_GRR_look.x=lookx;
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_GRR_look.y=looky;
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_GRR_look.z=lookz;
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}
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/**
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* Set up the position matrix (contributed my chris_c aka DaShAmAn).
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* @param miniDist Minimal distance for the cam.
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* @param maxDist Maximal distance for the cam.
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* @param fov Field of view for the cam.
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* @param texturemode False, GX won't need TexCoord, True, GX will need TexCoord.
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*/
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void GRRLIB_3dMode(f32 minDist,f32 maxDist,f32 fov, bool texturemode) {
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Mtx m;
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guLookAt(_GRR_view, &_GRR_cam, &_GRR_up, &_GRR_look);
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guPerspective(m, fov, (f32)rmode->fbWidth/rmode->efbHeight, minDist, maxDist);
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GX_LoadProjectionMtx(m, GX_PERSPECTIVE);
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GX_SetZMode (GX_TRUE, GX_LEQUAL, GX_TRUE);
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GX_SetCullMode(GX_CULL_NONE);
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GX_ClearVtxDesc();
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GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
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GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
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if(texturemode==FALSE) GX_SetVtxDesc(GX_VA_TEX0, GX_NONE);
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if(texturemode==TRUE) GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
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if(texturemode==FALSE) GX_SetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
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if(texturemode==TRUE) GX_SetTevOp(GX_TEVSTAGE0, GX_REPLACE);
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}
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/**
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* Go back to 2D Mode (contributed my chris_c aka DaShAmAn).
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*/
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void GRRLIB_2dMode() {
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Mtx view,m;
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GX_SetZMode(GX_FALSE, GX_LEQUAL, GX_TRUE);
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GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR);
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guOrtho(m, 0, rmode->efbHeight, 0, rmode->fbWidth, 0, 1000.0f);
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GX_LoadProjectionMtx(m, GX_ORTHOGRAPHIC);
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guMtxIdentity(view);
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guMtxTransApply(view,view, 0,0, -100.0F);
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GX_LoadPosMtxImm(view, GX_PNMTX0);
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GX_ClearVtxDesc();
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GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
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GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
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GX_SetVtxDesc(GX_VA_TEX0, GX_NONE);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
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GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR);
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}
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static guVector _GRRaxisx = (guVector){1,0,0}; // DO NOT MODIFY!!!
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static guVector _GRRaxisy = (guVector){0,1,0}; // Even at runtime
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static guVector _GRRaxisz = (guVector){0,0,1}; // NOT ever!
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/**
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* Set the view matrix to draw object (contributed my chris_c aka DaShAmAn).
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* @param posx x posision of the object.
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* @param posy y posision of the object.
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* @param posz z posision of the object.
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* @param angx x rotation angle of the object.
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* @param angy y rotation angle of the object.
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* @param angz z rotation angle of the object.
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*/
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void GRRLIB_objectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz) {
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Mtx m,mv,rx,ry,rz;
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Mtx mvi ;
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guMtxIdentity(m);
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guMtxRotAxisDeg(rx, &_GRRaxisx, angx);
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guMtxRotAxisDeg(ry, &_GRRaxisy, angy);
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guMtxRotAxisDeg(rz, &_GRRaxisz, angz);
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guMtxConcat(ry,rx,m);
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guMtxConcat(m,rz,m);
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guMtxTransApply(m, m, posx,posy,posz);
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guMtxConcat(_GRR_view,m,mv);
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GX_LoadPosMtxImm(mv, GX_PNMTX0);
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guMtxInverse(mv,mvi);
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guMtxTranspose(mvi,mv);
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GX_LoadNrmMtxImm(mv, GX_PNMTX0);
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}
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/**
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* Set the texture to an object (contributed my chris_c aka DaShAmAn).
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* @param tex poiter to an image texture (GRRLIB_texImg format).
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* @param rep Texture Repeat Mode, True will repeat it, False won't.
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*/
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void GRRLIB_setTexture(GRRLIB_texImg *tex, bool rep) {
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GXTexObj texObj;
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if (rep) {
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GX_InitTexObj(&texObj, tex->data, tex->w, tex->h,GX_TF_RGBA8, GX_REPEAT, GX_REPEAT, GX_FALSE);
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}
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else {
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GX_InitTexObj(&texObj, tex->data, tex->w, tex->h,GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
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}
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if (GRRLIB_Settings.antialias == false){
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GX_InitTexObjLOD(&texObj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, 0, 0, GX_ANISO_1);
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GX_SetCopyFilter(GX_FALSE, rmode->sample_pattern, GX_FALSE, rmode->vfilter);
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}
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else{
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GX_SetCopyFilter(rmode->aa, rmode->sample_pattern, GX_TRUE, rmode->vfilter);
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}
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GX_LoadTexObj(&texObj, GX_TEXMAP0);
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GX_SetTevOp (GX_TEVSTAGE0, GX_MODULATE);
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GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
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}
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@ -137,4 +137,14 @@ GRRLIB_texImg* GRRLIB_LoadTextureBMP (const u8 *my_bmp) ;
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bool GRRLIB_GeckoInit();
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void GRRLIB_GeckoPrintf (const char *text, ...);
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//------------------------------------------------------------------------------
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// GRRLIB_3D.c - 3D functions for GRRLIB
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void GRRLIB_setBackgroundColour(u8 r, u8 g, u8 b, u8 a);
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void GRRLIB_camera3dSettings(f32 posx, f32 posy, f32 posz, f32 upx, f32 upy, f32 upz, f32 lookx, f32 looky, f32 lookz);
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void GRRLIB_3dMode(f32 minDist,f32 maxDist,f32 fov, bool texturemode);
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void GRRLIB_2dMode();
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void GRRLIB_objectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz);
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void GRRLIB_setTexture(GRRLIB_texImg *tex, bool rep);
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#endif // __GRRLIB_FNLIB_H__
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