[ADD] First Diffuse Light functions (lot of work need about light in general...)

[ADD] a Diffuse Light sample code (3 lights sources)

GRRLIB/GRRLIB/GRRLIB_3D.c

@@ -76,9 +76,11 @@ void GRRLIB_Camera3dSettings(f32 posx, f32 posy, f32 posz,
  * @param minDist Minimal distance for the cam.
  * @param maxDist Maximal distance for the cam.
  * @param fov Field of view for the cam.
+ * @param colormode False, GX won't need vertex colors , True, GX will need vertex colors.
  * @param texturemode False, GX won't need texture coordinate, True, GX will need texture coordinate.
+ * @param normalmode False, GX won't need normal coordinate, True, GX will need normal coordinate.
  */
-void GRRLIB_3dMode(f32 minDist, f32 maxDist, f32 fov, bool texturemode) {
+void GRRLIB_3dMode(f32 minDist, f32 maxDist, f32 fov, bool colormode, bool texturemode, bool normalmode) {
     Mtx m;
 
     guLookAt(_GRR_view, &_GRR_cam, &_GRR_up, &_GRR_look);
@@ -90,17 +92,18 @@ void GRRLIB_3dMode(f32 minDist, f32 maxDist, f32 fov, bool texturemode) {
 
     GX_ClearVtxDesc();
     GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
-    GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
+    if(normalmode==TRUE)   GX_SetVtxDesc(GX_VA_NRM, GX_DIRECT);
-
+    if(colormode==TRUE)   GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
-    if(texturemode==FALSE) GX_SetVtxDesc(GX_VA_TEX0, GX_NONE);
+    if(texturemode==TRUE) GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
-    else                   GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
 
     GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
-    GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
+    if(normalmode==TRUE)   GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_NRM, GX_NRM_XYZ, GX_F32, 0);
-    GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
+    if(colormode==TRUE)    GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
+    if(texturemode==TRUE ) GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
 
     if(texturemode==FALSE) GX_SetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
-    else                   GX_SetTevOp(GX_TEVSTAGE0, GX_REPLACE);
+    else                   GX_SetTevOp(GX_TEVSTAGE0, GX_MODULATE);
+
 }
 
 /**
@@ -139,18 +142,25 @@ void GRRLIB_2dMode() {
  * @param angx x rotation angle of the object.
  * @param angy y rotation angle of the object.
  * @param angz z rotation angle of the object.
+ * @param scalx x scale of the object.
+ * @param scaly y scale of the object.
+ * @param scalz z scale of the object.
  */
-void GRRLIB_ObjectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz) {
+void GRRLIB_ObjectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz, f32 scalx, f32 scaly, f32 scalz) {
-    Mtx m, mv, rx, ry, rz;
+    Mtx m, m1, mv, rx, ry, rz;
     Mtx mvi ;
 
-    guMtxIdentity(m);
+    guMtxIdentity(m1);
+    guMtxScaleApply(m1, m1, scalx, scaly, scalz);
+
     guMtxRotAxisDeg(rx, &_GRRaxisx, angx);
     guMtxRotAxisDeg(ry, &_GRRaxisy, angy);
     guMtxRotAxisDeg(rz, &_GRRaxisz, angz);
     guMtxConcat(ry, rx, m);
     guMtxConcat(m, rz, m);
 
+    guMtxConcat(m, m1, m);
+
     guMtxTransApply(m, m, posx, posy, posz);
     guMtxConcat(_GRR_view, m, mv);
     GX_LoadPosMtxImm(mv, GX_PNMTX0);
@@ -160,6 +170,7 @@ void GRRLIB_ObjectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 ang
     GX_LoadNrmMtxImm(mv, GX_PNMTX0);
 }
 
+
 /**
  * Set the texture to an object (contributed by chris_c aka DaShAmAn).
  * @param tex poiter to an image texture (GRRLIB_texImg format).
@@ -186,3 +197,46 @@ void GRRLIB_SetTexture(GRRLIB_texImg *tex, bool rep) {
     GX_SetTevOp  (GX_TEVSTAGE0, GX_MODULATE);
     GX_SetVtxDesc(GX_VA_TEX0,   GX_DIRECT);
 }
+
+/**
+ * Initialise a Diffuse Light.
+ * @param id a light ID in libogc style : GX_LIGHT0,..., GX_LIGHT7).
+ * @param lpos a guVector x,y,z position of the light.
+ * @param lcol color of the light.
+*/
+void GRRLIB_InitLight(u8 id, guVector lpos, u32 lcol){
+GXLightObj MyLight;
+        guVecMultiply(_GRR_view, &lpos, &lpos);
+        GX_InitLightPos(&MyLight, lpos.x, lpos.y, lpos.z);
+        GX_InitLightColor(&MyLight, (GXColor) { R(lcol), G(lcol),B(lcol), A(lcol) });
+        GX_InitLightAttn(&MyLight, 1.0F, 0.0F, 0.0F, 1.0F, 0.0F, 0.0F);
+        GX_LoadLightObj(&MyLight, id);
+}
+
+/**
+ * All Light Off, colors come from the Vertex.
+*/
+void GRRLIB_LightOff(void){
+        GX_SetNumChans(1);
+        GX_SetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_VTX, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
+        GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0);
+}
+
+/**
+ * Define what light to turn on and some other param.
+ * @param id light IDs of the desired switched ON lights (ORed) (ie GX_LIGHT0|GX_LIGHT7).
+ * @param ambcol Ambiant color u32 formated
+ * @param matcol Material color u32 formated.
+ * @param colsrc Material color sources comes from the Vertex ???? (True/False)
+*/
+void GRRLIB_LightSwitch(u8 id, u32 ambcol, u32 matcol, u8 colsrc){
+        u8 src;
+        if(colsrc==0) src = GX_SRC_REG;
+        else src = GX_SRC_VTX;
+
+        GX_SetNumChans(1);
+        GX_SetChanCtrl(GX_COLOR0A0, GX_ENABLE, GX_SRC_REG, src, id, GX_DF_CLAMP,GX_AF_SPOT);
+        GX_SetChanAmbColor(GX_COLOR0A0, (GXColor) {  R(ambcol),  G(ambcol), B(ambcol), A(ambcol)});
+        GX_SetChanMatColor(GX_COLOR0A0, (GXColor) {  R(matcol),  G(matcol), B(matcol), A(matcol)});
+}
+

GRRLIB/GRRLIB/grrlib/GRRLIB__lib.h

@@ -143,10 +143,13 @@ void GRRLIB_GeckoPrintf (const char *text, ...);
 // GRRLIB_3D.c - 3D functions for GRRLIB
 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);
+void GRRLIB_3dMode(f32 minDist, f32 maxDist, f32 fov, bool colormode, bool texturemode, bool normalmode);
 void GRRLIB_2dMode();
-void GRRLIB_ObjectView(f32 posx, f32 posy, f32 posz, f32 angx, f32 angy, f32 angz);
+void GRRLIB_ObjectView(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);
+void GRRLIB_InitLight(u8 id, guVector lpos, u32 lcol);
+void GRRLIB_LightOff(void);
+void GRRLIB_LightSwitch(u8 id, u32 ambcol, u32 matcol, u8 colsrc);
 
 //------------------------------------------------------------------------------
 // GRRLIB_Freetype.c - FreeType function for GRRLIB

examples/3D_LightDiffuse/Makefile

@@ -0,0 +1,139 @@
+#---------------------------------------------------------------------------------
+# Clear the implicit built in rules
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(DEVKITPPC)),)
+$(error "Please set DEVKITPPC in your environment. export DEVKITPPC=<path to>devkitPPC)
+endif
+
+include $(DEVKITPPC)/wii_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# INCLUDES is a list of directories containing extra header files
+#---------------------------------------------------------------------------------
+TARGET		:=	$(notdir $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source source/gfx
+DATA		:=	data
+INCLUDES	:=
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+
+CFLAGS	= -g -O2 -mrvl -Wall $(MACHDEP) $(INCLUDE)
+CXXFLAGS	=	$(CFLAGS)
+
+LDFLAGS	=	-g $(MACHDEP) -mrvl -Wl,-Map,$(notdir $@).map
+
+#---------------------------------------------------------------------------------
+# any extra libraries we wish to link with the project
+#---------------------------------------------------------------------------------
+LIBS	:=	-lgrrlib -lfreetype -lpngu -lpng -ljpeg -lz -lfat -lwiiuse -lbte -logc -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CURDIR)/$(GRRLIB)
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+					$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+#---------------------------------------------------------------------------------
+# automatically build a list of object files for our project
+#---------------------------------------------------------------------------------
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+sFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+	export LD	:=	$(CC)
+else
+	export LD	:=	$(CXX)
+endif
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+					$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) \
+					$(sFILES:.s=.o) $(SFILES:.S=.o)
+
+#---------------------------------------------------------------------------------
+# build a list of include paths
+#---------------------------------------------------------------------------------
+export INCLUDE	:=	$(foreach dir,$(INCLUDES), -iquote $(CURDIR)/$(dir)) \
+					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+					-I$(CURDIR)/$(BUILD) \
+					-I$(LIBOGC_INC)
+
+#---------------------------------------------------------------------------------
+# build a list of library paths
+#---------------------------------------------------------------------------------
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib) \
+					-L$(LIBOGC_LIB)
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+.PHONY: $(BUILD) clean
+
+#---------------------------------------------------------------------------------
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(OUTPUT).elf $(OUTPUT).dol
+
+#---------------------------------------------------------------------------------
+run:
+	psoload $(TARGET).dol
+
+#---------------------------------------------------------------------------------
+reload:
+	psoload -r $(TARGET).dol
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT).dol: $(OUTPUT).elf
+$(OUTPUT).elf: $(OFILES)
+
+#---------------------------------------------------------------------------------
+# This rule links in binary data with the .jpg extension
+#---------------------------------------------------------------------------------
+%.jpg.o	:	%.jpg
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	$(bin2o)
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------

examples/3D_LightDiffuse/source/gfx/font.c

@@ -0,0 +1,67 @@
+/*
+  This file was autogenerated by raw2c.
+Visit http://www.devkitpro.org
+*/
+
+const unsigned char font[] = {
+	0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52, 
+	0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x00, 0x30, 0x08, 0x06, 0x00, 0x00, 0x00, 0x60, 0xc5, 0xa3, 
+	0xdf, 0x00, 0x00, 0x00, 0x01, 0x73, 0x52, 0x47, 0x42, 0x00, 0xae, 0xce, 0x1c, 0xe9, 0x00, 0x00, 
+	0x03, 0x5e, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0xed, 0x9d, 0xd1, 0xb2, 0xad, 0x20, 0x08, 0x40, 
+	0x4f, 0x4d, 0xff, 0xff, 0xcb, 0xdd, 0xa7, 0x3d, 0xd3, 0x6d, 0x6c, 0x54, 0x40, 0x40, 0x5d, 0xeb, 
+	0xe9, 0xcc, 0xd9, 0x91, 0x26, 0x48, 0x44, 0x4a, 0xc7, 0xdf, 0x20, 0xee, 0xfb, 0xbe, 0x7f, 0x7f, 
+	0x1f, 0xc7, 0x71, 0xfc, 0x81, 0x2b, 0xcf, 0xf1, 0xd7, 0xea, 0xe0, 0x7d, 0xae, 0xf7, 0x39, 0x6b, 
+	0xbf, 0x43, 0x4e, 0xbb, 0x78, 0xea, 0xe7, 0x4b, 0x87, 0x5f, 0xd4, 0x74, 0xdb, 0x3b, 0xff, 0xb5, 
+	0xed, 0xb7, 0xca, 0xbf, 0xe5, 0x0e, 0xef, 0x81, 0x86, 0x78, 0x63, 0x1f, 0x7d, 0x0e, 0x74, 0x3f, 
+	0xaf, 0xf3, 0xfb, 0xd2, 0x57, 0xc9, 0xc1, 0xb4, 0x1e, 0x6b, 0xe9, 0x2c, 0x4b, 0xc7, 0xf6, 0xf6, 
+	0xff, 0x79, 0xcc, 0x89, 0x59, 0xc0, 0xca, 0x13, 0xbe, 0x37, 0xb2, 0xe0, 0x66, 0xa8, 0x8b, 0xce, 
+	0x66, 0x1b, 0xef, 0x0b, 0xd3, 0xc0, 0xe0, 0x01, 0x5b, 0x68, 0x95, 0xad, 0x39, 0xb8, 0x5a, 0x5a, 
+	0x64, 0x44, 0xaa, 0x44, 0x23, 0x8f, 0x03, 0x5c, 0x14, 0x9c, 0x1e, 0x58, 0x3b, 0x3f, 0xaf, 0x7e, 
+	0x5a, 0xd8, 0x77, 0xeb, 0xf9, 0x2e, 0x2f, 0x25, 0x30, 0x21, 0xc1, 0x7b, 0xc2, 0x7b, 0x4e, 0x64, 
+	0xeb, 0x09, 0xbc, 0xab, 0xf3, 0xb3, 0x6a, 0xab, 0xf5, 0x25, 0xc9, 0x19, 0x69, 0x98, 0x00, 0xb0, 
+	0xb7, 0xf3, 0x8b, 0x86, 0x47, 0x60, 0x18, 0x1a, 0xc9, 0x7b, 0x47, 0xff, 0xa5, 0xb7, 0x9b, 0x1e, 
+	0xed, 0x67, 0x72, 0x14, 0xd9, 0x9c, 0x5f, 0x8f, 0x0d, 0x78, 0xd8, 0xcb, 0xb3, 0x8d, 0x6b, 0x07, 
+	0x83, 0x80, 0xbd, 0x9c, 0xe0, 0x88, 0x27, 0x96, 0x59, 0xfa, 0x6f, 0xe5, 0xc0, 0xac, 0xaf, 0x37, 
+	0xab, 0x13, 0x24, 0x02, 0x04, 0xf8, 0x70, 0x00, 0xd1, 0x69, 0x9b, 0xde, 0x08, 0x76, 0x87, 0x47, 
+	0x57, 0xe9, 0x3a, 0x40, 0xf7, 0x47, 0xe0, 0x9e, 0x85, 0x93, 0x00, 0x3c, 0x85, 0xe4, 0x88, 0xfc, 
+	0xb6, 0xb3, 0x11, 0x1c, 0x20, 0x48, 0x74, 0xf9, 0x75, 0x07, 0x5e, 0xc5, 0x11, 0xcd, 0xe4, 0x50, 
+	0xac, 0x77, 0xfc, 0x58, 0xdc, 0x5c, 0x34, 0x3b, 0x47, 0x24, 0x7d, 0xc8, 0xf8, 0x16, 0x1e, 0x00, 
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe2, 0x51, 0x97, 0x93, 0x79, 0xff, 0xd6, 0xd5, 
+	0xb8, 0x51, 0x12, 0x33, 0x43, 0x12, 0x55, 0x5a, 0x8f, 0x0c, 0xf4, 0x48, 0xf4, 0x3f, 0x62, 0x9d, 
+	0x9b, 0xa7, 0xfd, 0x6a, 0xe7, 0x60, 0xa6, 0xf6, 0x23, 0xe5, 0xcd, 0x1d, 0xe0, 0xa8, 0x7a, 0x5e, 
+	0xb3, 0xcb, 0xb3, 0x4c, 0xc1, 0xc7, 0x01, 0x5a, 0x17, 0xea, 0xf4, 0x68, 0x1f, 0xf9, 0x38, 0x79, 
+	0xea, 0x01, 0x02, 0xc0, 0xb6, 0xb8, 0xef, 0x04, 0x19, 0x51, 0xfb, 0x6b, 0xf5, 0x55, 0xef, 0x33, 
+	0x5c, 0x5f, 0xe4, 0x3a, 0x2c, 0x22, 0xea, 0x79, 0xc6, 0x2a, 0xb2, 0xf6, 0x5f, 0x49, 0xfe, 0xfa, 
+	0xfd, 0xf3, 0x67, 0xc0, 0xda, 0xed, 0x3f, 0xda, 0x5c, 0x98, 0x54, 0x5e, 0x33, 0x01, 0x25, 0xd7, 
+	0xaf, 0x95, 0x87, 0x75, 0x1c, 0xb0, 0xa6, 0x1f, 0xd6, 0xf2, 0x59, 0xf5, 0x20, 0xd9, 0xce, 0xa7, 
+	0xd1, 0x57, 0xcb, 0x38, 0xfe, 0xb7, 0x17, 0x58, 0x53, 0x60, 0xb0, 0xa7, 0x73, 0x4f, 0x47, 0x21, 
+	0x89, 0xe6, 0x4a, 0xf2, 0xda, 0xbc, 0x8e, 0x24, 0x87, 0xf0, 0xee, 0xbf, 0x55, 0x81, 0xc6, 0x59, 
+	0x23, 0x9b, 0xc8, 0xbe, 0x66, 0xca, 0xaf, 0x6a, 0xed, 0xa0, 0x55, 0x3e, 0xab, 0x6d, 0x44, 0x47, 
+	0x78, 0xbd, 0x01, 0x16, 0x39, 0x40, 0x80, 0x0d, 0x22, 0x5e, 0x28, 0x73, 0x66, 0x1b, 0xfc, 0xe8, 
+	0x47, 0x08, 0x0f, 0xc3, 0x6a, 0x6d, 0x63, 0xa6, 0x8f, 0xfa, 0xdc, 0x9d, 0xe0, 0x98, 0x90, 0xcf, 
+	0x20, 0x7f, 0x66, 0x74, 0x14, 0x38, 0x41, 0xe8, 0x7d, 0xdc, 0xf9, 0x81, 0x13, 0x44, 0xbe, 0x47, 
+	0xfe, 0xb2, 0x56, 0xf8, 0x8e, 0x6f, 0xe4, 0x46, 0x5d, 0x3f, 0x39, 0x40, 0xec, 0x6f, 0xb5, 0xb1, 
+	0xca, 0xa6, 0x2b, 0x72, 0x80, 0x00, 0xb0, 0xef, 0xd3, 0x83, 0x26, 0xac, 0x8c, 0xd8, 0x4a, 0xd6, 
+	0xda, 0xf6, 0xc8, 0x8f, 0x3f, 0x5b, 0xf7, 0x1f, 0xd6, 0x89, 0x6a, 0x6a, 0xfd, 0xa8, 0xed, 0x64, 
+	0xc8, 0x32, 0x7f, 0x76, 0x9b, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb0, 
+	0x26, 0x26, 0xe5, 0x68, 0x34, 0xc7, 0xb5, 0x92, 0xa5, 0x1c, 0x57, 0xed, 0x9c, 0xcd, 0x03, 0xbf, 
+	0x69, 0x3d, 0xb8, 0xd2, 0xf8, 0xce, 0x78, 0xfd, 0x52, 0xfb, 0xf1, 0x2c, 0x07, 0x55, 0xda, 0x36, 
+	0x97, 0xb1, 0x1c, 0x9c, 0x45, 0x3d, 0x4f, 0x29, 0x7c, 0x17, 0xd8, 0xfa, 0x8e, 0x22, 0xdc, 0x4b, 
+	0xac, 0x91, 0xb7, 0xd8, 0xcb, 0x3c, 0xba, 0xfd, 0x5a, 0xbb, 0x91, 0xd7, 0x5f, 0x73, 0xca, 0xbc, 
+	0x31, 0xcc, 0x37, 0x7f, 0xac, 0x60, 0x1d, 0x20, 0x00, 0x6c, 0x0b, 0x11, 0x20, 0x10, 0x61, 0xc0, 
+	0xb6, 0x3a, 0xb9, 0x46, 0x87, 0x98, 0xde, 0x64, 0xfb, 0x36, 0xc7, 0x4c, 0x45, 0x4d, 0x33, 0x8c, 
+	0x9f, 0x34, 0x1f, 0xa8, 0xa9, 0xe7, 0x88, 0x03, 0x8a, 0xaf, 0x87, 0x19, 0xb5, 0x90, 0xf9, 0x8a, 
+	0x7e, 0x06, 0x8f, 0xca, 0x21, 0xd4, 0x72, 0x51, 0xdc, 0x8d, 0x73, 0xeb, 0xef, 0x7d, 0x5c, 0x6f, 
+	0xc1, 0x4d, 0xf4, 0x5f, 0x9e, 0xd3, 0x11, 0xf5, 0x30, 0x23, 0xf3, 0xad, 0xe4, 0x00, 0x61, 0xe9, 
+	0x48, 0x1f, 0xa0, 0xcb, 0x01, 0x8e, 0x30, 0x2c, 0xeb, 0x73, 0xb6, 0xde, 0x4d, 0x22, 0xfa, 0x8a, 
+	0xfc, 0x7a, 0x25, 0xe1, 0x7b, 0xfa, 0x94, 0x69, 0xfc, 0x24, 0x25, 0xc2, 0xa2, 0x4b, 0xc1, 0x79, 
+	0xeb, 0xff, 0xf4, 0xea, 0x04, 0x4e, 0x10, 0x79, 0x9c, 0x20, 0xe3, 0x9f, 0xcd, 0x09, 0x5e, 0xd9, 
+	0x8c, 0x2b, 0x7b, 0x5e, 0x86, 0xf5, 0x61, 0xe8, 0xc4, 0x9a, 0xe7, 0x4b, 0x84, 0x19, 0xaf, 0xd3, 
+	0xb3, 0x5f, 0xd6, 0x6d, 0xb1, 0x0c, 0x06, 0xdc, 0x26, 0x39, 0xa3, 0x20, 0x77, 0x82, 0xdc, 0x78, 
+	0x17, 0x8e, 0x00, 0xa3, 0x97, 0x31, 0x94, 0x8c, 0x4f, 0xfb, 0xf5, 0xae, 0xe8, 0xc9, 0xe3, 0xd9, 
+	0x7f, 0x49, 0xfb, 0x96, 0x7d, 0x58, 0xc5, 0x7e, 0x5a, 0xae, 0xa3, 0x26, 0x17, 0xad, 0x7f, 0xab, 
+	0xf1, 0xe7, 0x25, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0xf0, 0x0f, 
+	0xab, 0xb9, 0x5f, 0xb5, 0x2f, 0x5e, 0xd2, 0x50, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 
+	0xae, 0x42, 0x60, 0x82
+};
+const int font_size = sizeof(font);

examples/3D_LightDiffuse/source/gfx/font.h

@@ -0,0 +1,14 @@
+/*
+  This file was autogenerated by raw2c.
+Visit http://www.devkitpro.org
+*/
+
+//---------------------------------------------------------------------------------
+#ifndef _font_h_
+#define _font_h_
+//---------------------------------------------------------------------------------
+extern const unsigned char font[];
+extern const int font_size;
+//---------------------------------------------------------------------------------
+#endif //_font_h_
+//---------------------------------------------------------------------------------

examples/3D_LightDiffuse/source/main.c

@@ -0,0 +1,110 @@
+/*===========================================
+    NoNameNo
+    Simple Diffuse Light Sample Code
+    With 3 Light sources.
+
+Note : This torus hardcoded obj will be removed
+when we will have nice primitive functions.
+============================================*/
+#include <grrlib.h>
+
+#include <stdlib.h>
+#include <math.h>
+#include <malloc.h>
+#include <wiiuse/wpad.h>
+
+#include "gfx/font.h"
+
+extern Mtx _GRR_view;
+
+
+typedef  struct GRRLIB_3dObj {
+    int       NbFace;
+    guVector  *Pos;
+    guVector  *Tex;
+    guVector  *Nrm;
+    int  *FacPos;
+    int  *FacTex;
+    int  *FacNrm;
+} GRRLIB_3dObj;
+
+#include "torus.h"
+
+
+void GRRLIB_Draw3dObj(GRRLIB_3dObj obj, u32 col, bool tex, bool norm){
+int i;
+        GX_Begin(GX_TRIANGLES, GX_VTXFMT0, obj.NbFace*3);
+        for(i=0;i<obj.NbFace*3;i+=3){
+            GX_Position3f32(obj.Pos[obj.FacPos[i]-1].x,obj.Pos[obj.FacPos[i]-1].y,-obj.Pos[obj.FacPos[i]-1].z);
+            if(col) GX_Color1u32   (col);
+            if(norm) GX_Normal3f32(obj.Nrm[obj.FacNrm[i]-1].x,obj.Nrm[obj.FacNrm[i]-1].y,-obj.Nrm[obj.FacNrm[i]-1].z);
+            if(tex) GX_TexCoord2f32(obj.Tex[obj.FacTex[i]-1].x, obj.Tex[obj.FacTex[i]-1].y);
+
+            GX_Position3f32(obj.Pos[obj.FacPos[i+1]-1].x,obj.Pos[obj.FacPos[i+1]-1].y,-obj.Pos[obj.FacPos[i+1]-1].z);
+            if(col) GX_Color1u32   (col);
+            if(norm) GX_Normal3f32(obj.Nrm[obj.FacNrm[i+1]-1].x,obj.Nrm[obj.FacNrm[i+1]-1].y,-obj.Nrm[obj.FacNrm[i+1]-1].z);
+            if(tex) GX_TexCoord2f32(obj.Tex[obj.FacTex[i+1]-1].x, obj.Tex[obj.FacTex[i+1]-1].y);
+
+            GX_Position3f32(obj.Pos[obj.FacPos[i+2]-1].x,obj.Pos[obj.FacPos[i+2]-1].y,-obj.Pos[obj.FacPos[i+2]-1].z);
+            if(col) GX_Color1u32   (col);
+            if(norm) GX_Normal3f32(obj.Nrm[obj.FacNrm[i+2]-1].x,obj.Nrm[obj.FacNrm[i+2]-1].y,-obj.Nrm[obj.FacNrm[i+2]-1].z);
+            if(tex) GX_TexCoord2f32(obj.Tex[obj.FacTex[i+2]-1].x, obj.Tex[obj.FacTex[i+2]-1].y);
+        }
+        GX_End();
+}
+
+int main() {
+    float a=0;
+    u8 Amb=0x80;
+    f32 zlight=0.0f;
+
+    GRRLIB_Init();
+    WPAD_Init();
+
+    Obj3dInittorus();
+
+    GRRLIB_texImg *tex_font = GRRLIB_LoadTexture(font);
+    GRRLIB_InitTileSet(tex_font, 16, 16, 32);
+
+    GRRLIB_Settings.antialias = true;
+
+    GRRLIB_SetBackgroundColour(0x00, 0x00, 0x00, 0xFF);
+    GRRLIB_Camera3dSettings(0.0f,0.0f,13.0f, 0,1,0, 0,0,0);
+
+    while(1) {
+        GRRLIB_2dMode();
+        WPAD_ScanPads();
+        if(WPAD_ButtonsDown(0) & WPAD_BUTTON_HOME) exit(0);
+        if(WPAD_ButtonsHeld(0) & WPAD_BUTTON_PLUS){if(Amb<255) Amb++; }
+        if(WPAD_ButtonsHeld(0) & WPAD_BUTTON_MINUS){if(Amb>0) Amb--; }
+        if(WPAD_ButtonsHeld(0) & WPAD_BUTTON_A){zlight++; }
+        if(WPAD_ButtonsHeld(0) & WPAD_BUTTON_B){zlight--; }
+
+
+        GRRLIB_3dMode(0.1,1000,45,0,0,1);
+        GRRLIB_ObjectView(0,0,0, a,a*2,a*3, 3,3,3);
+
+	GRRLIB_InitLight(GX_LIGHT0, (guVector){-6, 0, zlight}, 0xFF0000FF);
+	GRRLIB_InitLight(GX_LIGHT1, (guVector){ 6, 0, zlight}, 0x00FF00FF);
+	GRRLIB_InitLight(GX_LIGHT2, (guVector){ 0,-6, zlight}, 0x0000FFFF);
+
+	GRRLIB_LightSwitch(GX_LIGHT0|GX_LIGHT1|GX_LIGHT2,RGBA(Amb,Amb,Amb,0xFF),0x808080FF,0);
+
+	GRRLIB_Draw3dObj(torus,0,0,1);
+
+        a+=0.5f;
+
+	GRRLIB_LightOff();
+        // Switch To 2D Mode to display text
+        GRRLIB_2dMode();
+        GRRLIB_Printf((640-(16*35))/2, 20, tex_font, 0xFFFFFFFF, 1, "(PLUS / MINUS) AMBIENT = 0X%02X%02X%02XFF",Amb,Amb,Amb,Amb);
+        GRRLIB_Printf((640-(16*35))/2, 36, tex_font, 0xFFFFFFFF, 1, "        (A / B) ZLIGHT = %f              ",zlight);
+
+        GRRLIB_Render();
+    }
+    GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
+    GRRLIB_FreeTexture(tex_font);
+
+    exit(0);
+}
+