void SkeletonExporter::export_light(INode *node)
{
Control *c;
int size_key, sf;
ObjectState os;
GenLight* light;
struct LightState ls;
float near_radius, far_radius;
Point3 row;
Matrix3 mat;
os=node->EvalWorldState(0);
if (!os.obj) return; // per sicurezza
light=(GenLight*)os.obj;
// controlliamo se esiste un padre
INode *padre=node->GetParentNode();
if ((padre) && (strcmp(padre->GetName(), "Scene Root")!=0))
sf=strlen(padre->GetName())+1;
else sf=0;
light->EvalLightState(0, FOREVER, &ls);
fprintf(fTXT, "Name : %s\n", node->GetName());
switch (ls.type)
{
case OMNI_LGT: fprintf(fTXT, "Omni light found\n");
// flag padre + nome padre + pivot + NodeTM(0) +
// + colore
write_chunk_header(fA3D, OMNI_LIGHT_ID,
node->GetName(), 4+sf+12+48+12);
if (makeRAY) write_chunk_header(fRAY, OMNI_LIGHT_ID,
node->GetName(), 4+sf+12+48+12);
break;
case SPOT_LGT: fprintf(fTXT, "Spot light found\n");
// flag padre + nome padre + pivot + NodeTM(0) +
// + colore + falloff + hotspot
write_chunk_header(fA3D, SPOT_LIGHT_ID,
node->GetName(), 4+sf+12+48+12+8);
if (makeRAY) write_chunk_header(fRAY, SPOT_LIGHT_ID,
node->GetName(), 4+sf+12+48+12+8);
break;
}
// ----------- scrivo il padre (flag, nome) ------------------
fwrite(&sf, sizeof(int), 1, fA3D);
if (sf>0) write_string0(fA3D, padre->GetName());
if (makeRAY) fwrite(&sf, sizeof(int), 1, fRAY);
if (makeRAY)
if (sf>0) write_string0(fRAY, padre->GetName());
// --------------- scrittura del punto di pivot ----------------
GetPivotOffset(node, &row);
fprintf(fTXT, "Pivot point : %f, %f, %f\n", row.x, row.y, row.z);
write_point3(&row, fA3D);
if (makeRAY) write_point3(&row, fRAY);
// ------------------- salviamo la NodeTM(0) ---------------------
mat=node->GetNodeTM(0);
row=mat.GetRow(3);
fprintf(fTXT, "World position : x=%f, y=%f, z=%f\n", row.x, row.y, row.z);
write_matrix(&mat, fA3D);
if (makeRAY) write_matrix(&mat, fRAY);
// -------------------- salviamo il colore -----------------------
fprintf(fTXT, "Color : R=%f, G=%f, B=%f\n", ls.color.r, ls.color.g, ls.color.b);
fwrite(&ls.color.r, sizeof(float), 1, fA3D);
fwrite(&ls.color.g, sizeof(float), 1, fA3D);
fwrite(&ls.color.b, sizeof(float), 1, fA3D);
if (makeRAY) fwrite(&ls.color.r, sizeof(float), 1, fRAY);
if (makeRAY) fwrite(&ls.color.g, sizeof(float), 1, fRAY);
if (makeRAY) fwrite(&ls.color.b, sizeof(float), 1, fRAY);
// ---------------------- falloff e hotpsot ----------------------
if (ls.type == SPOT_LGT)
{
float hotspot = (float)(ls.hotsize*3.14159265358979323846/180.0);
float falloff = (float)(ls.fallsize*3.14159265358979323846/180.0);
fwrite(&hotspot, sizeof(float), 1, fA3D);
if (makeRAY) fwrite(&hotspot, sizeof(float), 1, fRAY);
fwrite(&falloff, sizeof(float), 1, fA3D);
if (makeRAY) fwrite(&falloff, sizeof(float), 1, fRAY);
}
fprintf(fTXT, "Intensity : %f\n", ls.intens);
// -------------- esportazione tracce di posizione ---------------
c=node->GetTMController()->GetPositionController();
if ((c) && (c->NumKeys()>0))
{
if (IsTCBControl(c)) size_key=36;
else
if (IsBezierControl(c)) size_key=40;
else size_key=16;
fprintf(fTXT, "Light position track present.");
write_chunk_header(fA3D, POSITION_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
export_point3_track(c, 1, fA3D);
if (makeRAY) write_chunk_header(fRAY, POSITION_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
if (makeRAY) export_point3_track(c, 1, fRAY);
}
// --------------- esportazione tracce di colore -----------------
c=light->GetColorControl();
if ((c) && (c->NumKeys()>0))
{
if (IsTCBControl(c)) size_key=36;
else
if (IsBezierControl(c)) size_key=40;
else size_key=16;
fprintf(fTXT, "Light color track present.");
write_chunk_header(fA3D, COLOR_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
export_point3_track(c, 1.0f, fA3D);
if (makeRAY) write_chunk_header(fRAY, COLOR_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
if (makeRAY) export_point3_track(c, 1.0f, fRAY);
}
// -------------- esportazione tracce di hotspot -----------------
c=light->GetHotSpotControl();
if ((c) && (c->NumKeys()>0) && (ls.type == SPOT_LGT))
{
if (IsTCBControl(c)) size_key=28;
else
if (IsBezierControl(c)) size_key=16;
else size_key=8;
fprintf(fTXT, "Light hotspot track present.");
write_chunk_header(fA3D, HOTSPOT_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
export_float_track(c, (float)(3.14159265358979323846/180.0), fA3D); // in radianti
if (makeRAY) write_chunk_header(fRAY, HOTSPOT_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
if (makeRAY) export_float_track(c, (float)(3.14159265358979323846/180.0), fRAY); // in radianti
}
// -------------- esportazione tracce di falloff -----------------
c=light->GetFalloffControl();
if ((c) && (c->NumKeys()>0) && (ls.type == SPOT_LGT))
{
if (IsTCBControl(c)) size_key=28;
else
if (IsBezierControl(c)) size_key=16;
else size_key=8;
fprintf(fTXT, "Light falloff track present.");
write_chunk_header(fA3D, FALLOFF_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
export_float_track(c, (float)(3.14159265358979323846/180.0), fA3D); // in radianti
if (makeRAY) write_chunk_header(fRAY, FALLOFF_TRACK_ID,
node->GetName(), 1+2+4+c->NumKeys()*size_key);
if (makeRAY) export_float_track(c, (float)(3.14159265358979323846/180.0), fRAY); // in radianti
}
// ------------------------- script ADL --------------------------
Mtl *materiale=node->GetMtl();
// NO far + NO near
if ((!light->GetUseAttenNear()) && (!light->GetUseAtten()))
{
far_radius=near_radius=999999;
}
else
// NO far + SI near
if ((light->GetUseAttenNear()) && (!light->GetUseAtten()))
{
near_radius=light->GetAtten(0, ATTEN1_START, FOREVER);
far_radius=999999;
}
else
// SI far + NO near
if ((!light->GetUseAttenNear()) && (light->GetUseAtten()))
{
far_radius=light->GetAtten(0, ATTEN_START, FOREVER);
near_radius=far_radius;
}
// SI far + SI near
if ((light->GetUseAttenNear()) && (light->GetUseAtten()))
{
near_radius=light->GetAtten(0, ATTEN1_START, FOREVER);
far_radius=light->GetAtten(0, ATTEN_START, FOREVER);
}
if (makeADL)
{
fprintf(fADL, " light %c%s%c\n {\n", '"', node->GetName(), '"');
if (materiale)
fprintf(fADL, " material=%c%s%c;\n", '"', materiale->GetName(), '"');
else
fprintf(fADL, " material=%cNONE%c;\n", '"', '"');
//fprintf(fADL, " scale_x=%c160%c;\n", '"', '"');
//fprintf(fADL, " scale_y=%c160%c;\n", '"', '"');
//fprintf(fADL, " near_radius=%c%f%c;\n", '"', near_radius, '"');
//fprintf(fADL, " far_radius=%c%f%c;\n", '"', far_radius, '"');
switch (light->GetDecayType())
{
case 0: fprintf(fADL, " attenuation0=%c1.0%c;\n", '"', '"');
fprintf(fADL, " attenuation1=%c0%c;\n", '"', '"');
fprintf(fADL, " attenuation2=%c0%c;\n", '"', '"');
break;
case 1: fprintf(fADL, " attenuation0=%c0%c;\n", '"', '"');
fprintf(fADL, " attenuation1=%c1.0%c;\n", '"', '"');
fprintf(fADL, " attenuation2=%c0%c;\n", '"', '"');
break;
case 2: fprintf(fADL, " attenuation0=%c0%c;\n", '"', '"');
fprintf(fADL, " attenuation1=%c0%c;\n", '"', '"');
fprintf(fADL, " attenuation2=%c1.0%c;\n", '"', '"');
break;
}
char range[20];
my_ftoa(far_radius, range);
fprintf(fADL, " max_range=%c%s%c;\n", '"', range, '"');
fprintf(fADL, " }\n\n");
}
fprintf(fTXT, "\n\n\n----------------------------------------------------\n");
}
// Build a CLight
bool CExportNel::buildLight (GenLight &maxLight, NL3D::CLight& nelLight, INode& node, TimeValue time)
{
// Eval the light state fot this time
Interval valid=NEVER;
LightState ls;
if (maxLight.EvalLightState(time, valid, &ls)==REF_SUCCEED)
{
// Set the light mode
switch (maxLight.Type())
{
case OMNI_LIGHT:
nelLight.setMode (CLight::PointLight);
break;
case TSPOT_LIGHT:
case FSPOT_LIGHT:
nelLight.setMode (CLight::SpotLight);
break;
case DIR_LIGHT:
case TDIR_LIGHT:
nelLight.setMode (CLight::DirectionalLight);
break;
default:
// Not initialized
return false;
}
// *** Set the light color
// Get the color
CRGBA nelColor;
Point3 maxColor=maxLight.GetRGBColor(time);
// Mul by multiply
CRGBAF nelFColor;
nelFColor.R=maxColor.x;
nelFColor.G=maxColor.y;
nelFColor.B=maxColor.z;
nelFColor.A=1.f;
nelFColor*=maxLight.GetIntensity(time);
nelColor=nelFColor;
// Affect the ambiant color ?
if (maxLight.GetAmbientOnly())
{
nelLight.setAmbiant (nelColor);
nelLight.setDiffuse (CRGBA (0,0,0));
nelLight.setSpecular (CRGBA (0,0,0));
}
else
{
nelLight.setAmbiant (CRGBA (0,0,0));
// Affect the diffuse color ?
if (maxLight.GetAffectDiffuse())
nelLight.setDiffuse (nelColor);
else
nelLight.setDiffuse (CRGBA (0,0,0));
// Affect the specular color ?
if (maxLight.GetAffectSpecular())
nelLight.setSpecular (nelColor);
else
nelLight.setSpecular (CRGBA (0,0,0));
}
// Set the light position
Point3 pos=node.GetNodeTM(time).GetTrans ();
CVector position;
position.x=pos.x;
position.y=pos.y;
position.z=pos.z;
// Set the position
nelLight.setPosition (position);
// Set the light direction
CVector direction;
INode* target=node.GetTarget ();
if (target)
{
// Get the position of the target
Point3 posTarget=target->GetNodeTM (time).GetTrans ();
CVector positionTarget;
positionTarget.x=posTarget.x;
positionTarget.y=posTarget.y;
positionTarget.z=posTarget.z;
// Direction
direction=positionTarget-position;
direction.normalize ();
}
else // No target
{
// Get orientation of the source as direction
CMatrix nelMatrix;
convertMatrix (nelMatrix, node.GetNodeTM(time));
// Direction is -Z
direction=-nelMatrix.getK();
direction.normalize ();
}
// Set the direction
nelLight.setDirection (direction);
// Set spot light information
nelLight.setCutoff ((float)(NLMISC::Pi*maxLight.GetFallsize(time)/180.f/2.f));
// Compute the exponent value
float angle=(float)(NLMISC::Pi*maxLight.GetHotspot(time)/(2.0*180.0));
nelLight.setupSpotExponent (angle);
// *** Set attenuation
if (maxLight.GetUseAtten())
{
float nearAtten = maxLight.GetAtten (time, ATTEN_START);
if (nearAtten == 0)
nearAtten = 0.1f;
nelLight.setupAttenuation (nearAtten, maxLight.GetAtten (time, ATTEN_END));
}
else
nelLight.setNoAttenuation ();
// Initialized
return true;
}
// Not initialized
return false;
}