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[ADD] I finnaly commiting GRRLIB_SetLightSpot ;)

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N0NameN0 2010-05-10 22:37:34 +00:00
parent 08f93839ac
commit 16d32f32ed
2 changed files with 40 additions and 0 deletions
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39
GRRLIB/GRRLIB/GRRLIB_3D.c
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@ -700,6 +700,45 @@ void GRRLIB_SetLightSpec(u8 num, guVector dir, f32 shy, u32 lightcolor, u32 spec
GX_SetChanMatColor(GX_COLOR1, (GXColor) { R(speccolor), G(speccolor), B(speccolor), 0xFF }); // couleur du reflet specular
}
/**
* Set Spot light parameters.
* @param num Number of the light. It's a number from 0 to 7.
* @param pos Position of the spot light (x/y/z).
* @param lookat Where spot light look at (x/y/z).
* @param angAttn0 cone attenuation factor 0.
* @param angAttn1 cone attenuation factor 1.
* @param angAttn2 cone attenuation factor 2.
* @param distAttn0 Distance attenuation factor 0.
* @param distAttn1 Distance attenuation factor 1.
* @param distAttn2 Distance attenuation factor 2.
* @param lightcolor Color of the light in RGBA format.
*/
void GRRLIB_SetLightSpot(u8 num, guVector pos, guVector lookat, f32 angAttn0, f32 angAttn1, f32 angAttn2, f32 distAttn0, f32 distAttn1, f32 distAttn2, u32 lightcolor) {
GXLightObj lobj;
guVector lpos = (guVector){ pos.x, pos.y, pos.z };
guVector ldir = (guVector){ lookat.x-pos.x, lookat.y-pos.y, lookat.z-pos.z };
guVecNormalize(&ldir);
GRRLIB_Settings.lights |= (1<<num);
guVecMultiplySR(_GRR_view, &ldir,&ldir);
guVecMultiply(_GRR_view, &lpos, &lpos);
GX_InitLightDirv(&lobj, &ldir);
GX_InitLightPosv(&lobj, &lpos);
GX_InitLightColor(&lobj, (GXColor) { R(lightcolor), G(lightcolor), B(lightcolor), 0xFF });
//this is just for code readers, wanting to know how to use direct cut off
//GX_InitLightSpot(&lobj, 0<angle<90, GX_SP_FLAT);
GX_InitLightAttn(&lobj, angAttn0, angAttn1, angAttn2, distAttn0, distAttn1, distAttn2);
GX_LoadLightObj(&lobj, (1<<num));
// Turn light ON
GX_SetNumChans(1);
GX_SetChanCtrl(GX_COLOR0A0, GX_ENABLE, GX_SRC_REG, GX_SRC_VTX, GRRLIB_Settings.lights, GX_DF_CLAMP, GX_AF_SPOT);
}
/**
* Set all lights off, like at init.

1
GRRLIB/GRRLIB/grrlib/GRRLIB__lib.h
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@ -167,6 +167,7 @@ void GRRLIB_DrawTessPanel(f32 w, f32 wstep, f32 h, f32 hstep, bool filled, u32 c
void GRRLIB_SetLightAmbient(u32 ambientcolor);
void GRRLIB_SetLightDiff(u8 num, guVector pos, f32 distattn, f32 brightness, u32 lightcolor);
void GRRLIB_SetLightSpec(u8 num, guVector dir, f32 shy, u32 lightcolor, u32 speccolor);
void GRRLIB_SetLightSpot(u8 num, guVector pos, guVector lookat, f32 angAttn0, f32 angAttn1, f32 angAttn2, f32 distAttn0, f32 distAttn1, f32 distAttn2, u32 lightcolor);
void GRRLIB_SetLightOff(void);
//------------------------------------------------------------------------------