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[ADD] GRRLIB_ObjectViewBegin

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[ADD] GRRLIB_ObjectViewScale
[ADD] GRRLIB_ObjectViewRotate
[ADD] GRRLIB_ObjectViewTrans
[ADD] GRRLIB_ObjectViewEnd
With this we are completly free about object transformation.
This commit is contained in:
N0NameN0 2010-04-29 22:21:45 +00:00
parent f9e3976fd5
commit 460cdc4290
2 changed files with 76 additions and 1 deletions
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72
GRRLIB/GRRLIB/GRRLIB_3D.c
View file

@ -32,7 +32,7 @@ static guVector _GRR_cam = {0.0F, 0.0F, 0.0F},
static guVector _GRRaxisx = (guVector){1, 0, 0}; // DO NOT MODIFY!!!
static guVector _GRRaxisy = (guVector){0, 1, 0}; // Even at runtime
static guVector _GRRaxisz = (guVector){0, 0, 1}; // NOT ever!
static Mtx _ObjTransformationMtx;
/**
* Set the background parameter when screen is cleared.
* @param r Red component.
@ -147,6 +147,76 @@ void GRRLIB_2dMode() {
GRRLIB_Settings.lights = 0;
}
/**
* Init the object matrix to draw object.
*/
void GRRLIB_ObjectViewBegin(void){
guMtxIdentity(_ObjTransformationMtx);
}
/**
* Scale the object matrix to draw object.
* @param scalx x scale of the object.
* @param scaly y scale of the object.
* @param scalz z scale of the object.
*/
void GRRLIB_ObjectViewScale(f32 scalx, f32 scaly, f32 scalz) {
Mtx m;
guMtxIdentity(m);
guMtxScaleApply(m, m, scalx, scaly, scalz);
guMtxConcat(m, _ObjTransformationMtx, _ObjTransformationMtx);
}
/**
* Rotate the object matrix to draw object .
* @param angx x rotation angle of the object.
* @param angy y rotation angle of the object.
* @param angz z rotation angle of the object.
*/
void GRRLIB_ObjectViewRotate(f32 angx, f32 angy, f32 angz) {
Mtx m, rx,ry,rz;
guMtxIdentity(m);
guMtxRotAxisDeg(rx, &_GRRaxisx, angx);
guMtxRotAxisDeg(ry, &_GRRaxisy, angy);
guMtxRotAxisDeg(rz, &_GRRaxisz, angz);
guMtxConcat(ry, rx, m);
guMtxConcat(m, rz, m);
guMtxConcat(m, _ObjTransformationMtx, _ObjTransformationMtx);
}
/**
* Translate the object matrix to draw object.
* @param posx x position of the object.
* @param posy y position of the object.
* @param posz z position of the object.
*/
void GRRLIB_ObjectViewTrans(f32 posx, f32 posy, f32 posz){
Mtx m;
guMtxIdentity(m);
guMtxTransApply(m, m, posx, posy, posz);
guMtxConcat(m, _ObjTransformationMtx, _ObjTransformationMtx);
}
/**
* Concat the object and the view matrix and calculate the inverse normal matrix.
*/
void GRRLIB_ObjectViewEnd(void){
Mtx mv, mvi;
guMtxConcat(_GRR_view, _ObjTransformationMtx, mv);
GX_LoadPosMtxImm(mv, GX_PNMTX0);
guMtxInverse(mv, mvi);
guMtxTranspose(mvi, mv);
GX_LoadNrmMtxImm(mv, GX_PNMTX0);
}
/**
* Set the view matrix to draw object (in this order scale, rotate AND trans).
* @param posx x position of the object.

5
GRRLIB/GRRLIB/grrlib/GRRLIB__lib.h
View file

@ -150,6 +150,11 @@ void GRRLIB_SetBackgroundColour(u8 r, u8 g, u8 b, u8 a);
void GRRLIB_Camera3dSettings(f32 posx, f32 posy, f32 posz, f32 upx, f32 upy, f32 upz, f32 lookx, f32 looky, f32 lookz);
void GRRLIB_3dMode(f32 minDist, f32 maxDist, f32 fov, bool texturemode, bool normalmode);
void GRRLIB_2dMode();
void GRRLIB_ObjectViewBegin(void);
void GRRLIB_ObjectViewScale(f32 scalx, f32 scaly, f32 scalz);
void GRRLIB_ObjectViewRotate(f32 angx, f32 angy, f32 angz);
void GRRLIB_ObjectViewTrans(f32 posx, f32 posy, f32 posz);
void GRRLIB_ObjectViewEnd(void);
void GRRLIB_ObjectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz, f32 scalx, f32 scaly, f32 scalz);
void GRRLIB_ObjectViewInv(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz, f32 scalx, f32 scaly, f32 scalz);
void GRRLIB_SetTexture(GRRLIB_texImg *tex, bool rep);