void sceneLightEnum(INode* node, SContext* sc, MtlBaseLib* mtls)
{
// For each child of this node, we recurse into ourselves
// until no more children are found.
for (int c = 0; c < node->NumberOfChildren(); c++) {
sceneLightEnum(node->GetChildNode(c), sc, mtls);
}
// Get the ObjectState.
// The ObjectState is the structure that flows up the pipeline.
// It contains a matrix, a material index, some flags for channels,
// and a pointer to the object in the pipeline.
ObjectState ostate = node->EvalWorldState(0);
if (ostate.obj==NULL)
return;
// Examine the superclass ID in order to figure out what kind
// of object we are dealing with.
if (ostate.obj->SuperClassID() == LIGHT_CLASS_ID) {
// Get the light object from the ObjectState
LightObject *light = (LightObject*)ostate.obj;
// Is this light turned on?
if (light->GetUseLight()) {
// Create a RenderLight and append it to our list of lights
// to fix compiler error
LightInfo* li = new LightInfo(node, mtls);
sc->lightTab.Append(1, &(li));
//sc->lightTab.Append(1, &(new LightInfo(node, mtls)));
}
}
}
int DirLight::Update(TimeValue t, const RendContext &rc,
RenderGlobalContext *rgc, BOOL shadows, BOOL shadowGeomChanged)
{
int res = 1;
BaseObjLight::Update(t,rc,rgc,shadows,shadowGeomChanged);
hotsz = ls.hotsize;
fallsz = ls.fallsize;
fallsq = fallsz*fallsz;
hotpct = ls.hotsize/ls.fallsize;
ihotpct = 1.0f - hotpct;
ObjectState os = inode->EvalWorldState(t);
LightObject* lob = (LightObject *)os.obj;
assert(os.obj->SuperClassID()==LIGHT_CLASS_ID);
plRTDirLight* gl = (lob->GetInterface(I_MAXSCRIPTPLUGIN) != NULL) ? (plRTDirLight*)lob->GetReference(0) : (plRTDirLight*)lob; // JBW 4/7/99
//projector = gl->GetProjector();
aspect = 1.0f;
//if (projector){
// projMap = gl->GetProjMap();
// if( projMap ) projMap->Update(t,FOREVER);
// }
return res;
};
int OmniLight::Update(TimeValue t, const RendContext & rc,
RenderGlobalContext *rgc, BOOL shadows, BOOL shadowGeomChanged)
{
BaseObjLight::Update(t,rc,rgc,shadows,shadowGeomChanged);
ObjectState os = inode->EvalWorldState(t);
LightObject* lob = (LightObject *)os.obj;
assert(os.obj->SuperClassID()==LIGHT_CLASS_ID);
plRTOmniLight* gl = (lob->GetInterface(I_MAXSCRIPTPLUGIN) != NULL) ? (plRTOmniLight*)lob->GetReference(0) : (plRTOmniLight*)lob; // JBW 4/7/99
decayType = gl->GetDecayType();
decayRadius = gl->GetDecayRadius(t);
fov = HALFPI; // 90 degree fov
int res=1;
if(gl->GetTex())
gl->GetTex()->Update(t, FOREVER);
//projector = gl->GetProjector();
//if (projector){
// projMap = gl->GetProjMap();
// if( projMap ) projMap->Update(t,FOREVER);
//}
return res;
}
LightObject* Level::createLight( Vec2f const& pos ,float radius )
{
LightObject* light = new LightObject();
light->init();
light->setPos( pos );
light->radius = radius;
mLights.push_back( light );
addObjectInternal( light );
return light;
}
LightObject* CreationTool::CreateLightObject(XMFLOAT3 position)
{
LightObject* lightObject = new LightObject();
lightObject->SetName("Light");
lightObject->SetMaterials(Material(Colors::White, Colors::White, XMFLOAT4(229/255.0f, 106/255.0f, 5.0f/255.0f, 1.0f)));
lightObject->SetRotation(XMFLOAT3(0.3f, -1.0f, 0.0f));
lightObject->SetLightType(SPOT_LIGHT);
lightObject->SetAtt(0, 0.1, 0);
lightObject->SetRange(2000.0f);
lightObject->SetSpot(16.0f);
lightObject->SetPosition(position);
lightObject->SetIntensity(0.2f, 1.0f, 0.2f);
return lightObject;
}
int SpotLight::Update(TimeValue t, const RendContext &rc, RenderGlobalContext *rgc, BOOL shadows, BOOL shadowGeomChanged)
{
int res = 1;
BaseObjLight::Update(t,rc,rgc,shadows, shadowGeomChanged);
float hs = DegToRad(ls.hotsize);
float fs = DegToRad(ls.fallsize);
fall_tan = (float)tan(fs/2.0f);
hot_cos = (float)cos(hs/2.0f);
fall_cos =(float)cos(fs/2.0f);
fall_sin = (float)sin(fs/2.0f);
hotpct = ls.hotsize/ls.fallsize;
ihotpct = 1.0f - hotpct;
ObjectState os = inode->EvalWorldState(t);
LightObject* lob = (LightObject *)os.obj;
assert(os.obj->SuperClassID()==LIGHT_CLASS_ID);
plRTLightBase* gl = (lob->GetInterface(I_MAXSCRIPTPLUGIN) != NULL) ? (plRTLightBase*)lob->GetReference(0) : (plRTLightBase*)lob; // JBW 4/7/99
decayType = gl->GetDecayType();
decayRadius = gl->GetDecayRadius(t);
projector = gl->GetProjector();
fov = std::max(fs, hs);
float aspect = 1.0f;
fov = 2.0f* (float)atan(tan(fov*0.5f)*sqrt(aspect));
zfac = -sz2 /(float)tan(0.5*(double)fov);
xscale = zfac;
yscale = -zfac*aspect;
curve =(float)fabs(1.0f/xscale);
rectv0.y = fall_sin * (float)sqrt(aspect);
rectv1.y = fall_sin / (float)sqrt(aspect);
rectv0.x = rectv1.x = fall_cos;
rectv0 = Normalize(rectv0);
rectv1 = Normalize(rectv1);
Interval v;
if (projector){
projMap = gl->GetProjMap();
if( projMap ) projMap->Update(t,v);
}
return res;
}
//------------------------------
LightObject* LightImporter::createSkyLight( const COLLADAFW::Light* light, const SkyLightParameters* skyLightParameters )
{
void* lightMaxObject = createMaxObject(LIGHT_CLASS_ID, SKY_LIGHT_CLASS_ID);
LightObject* skyLight = (LightObject*)lightMaxObject;
IParamBlock2* skyLightParams = (IParamBlock2*) skyLight->GetReference(MaxLight::PBLOCK_REF_SKY);
Point3 color = toMaxPoint3(light->getColor());
// param id documented in const Extra::ExtraParameter LightExporter::SKYLIGHT_PARAMETERS
skyLightParams->SetValue(0, 0, color);
skyLightParams->SetValue(1, 0, skyLightParameters->colorMapAmount);
skyLightParams->SetValue(3, 0, skyLightParameters->colorMapOn);
skyLightParams->SetValue(4, 0, skyLightParameters->raysPerSample);
skyLightParams->SetValue(7, 0, skyLightParameters->mode);
skyLightParams->SetValue(10, 0, skyLightParameters->multiplier);
skyLightParams->SetValue(11, 0, skyLightParameters->rayBias);
skyLightParams->SetValue(12, 0, skyLightParameters->castShadows);
skyLightParams->SetValue(13, 0, skyLightParameters->intensityOn);
return skyLight;
}
//---------------------------------------------------------------
void LightExporter::exportLight( ExportNode* exportNode )
{
if ( !exportNode->getIsInVisualScene() )
return;
String lightId = getLightId(*exportNode);
INode * iNode = exportNode->getINode();
LightObject* lightObject = (LightObject*) (iNode->GetObjectRef());
if ( !lightObject )
return;
if ( mDocumentExporter->isExportedObject(ObjectIdentifier(lightObject)) )
return;
mDocumentExporter->insertExportedObject(ObjectIdentifier(lightObject), exportNode);
// Retrieve the target node, if we are not baking matrices.
// Baked matrices must always sample the transform!
ULONG ClassId = lightObject->ClassID().PartA();
bool isTargeted = !mDocumentExporter->getOptions().getBakeMatrices() && (ClassId == SPOT_LIGHT_CLASS_ID || ClassId == TDIR_LIGHT_CLASS_ID);
INode* targetNode = isTargeted ? iNode->GetTarget() : 0;
// some lights are not supported at all
switch (ClassId)
{
case FSPOT_LIGHT_CLASS_ID:
case SPOT_LIGHT_CLASS_ID:
case DIR_LIGHT_CLASS_ID:
case TDIR_LIGHT_CLASS_ID:
case SKY_LIGHT_CLASS_ID_PART_A:
case OMNI_LIGHT_CLASS_ID:
break;
default:
return;
}
// Determine the light's type
bool isSpot = false;
bool isDirectional = false;
bool isPoint = false;
bool isSky = false;
COLLADASW::Light::LightType lightType;
switch (ClassId)
{
case FSPOT_LIGHT_CLASS_ID:
case SPOT_LIGHT_CLASS_ID:
lightType = COLLADASW::Light::SPOT;
isSpot = true;
break;
case DIR_LIGHT_CLASS_ID:
case TDIR_LIGHT_CLASS_ID:
lightType = COLLADASW::Light::DIRECTIONAL;
isDirectional = true;
break;
case SKY_LIGHT_CLASS_ID_PART_A:
lightType = COLLADASW::Light::POINT;
isSky = true;
break;
case OMNI_LIGHT_CLASS_ID:
lightType = COLLADASW::Light::POINT;
isPoint = true;
break;
}
COLLADASW::Light * colladaLight = 0;
switch ( lightType )
{
case COLLADASW::Light::DIRECTIONAL:
colladaLight = new COLLADASW::DirectionalLight(COLLADASW::LibraryLights::mSW, lightId, COLLADASW::Utils::checkNCName(NativeString(exportNode->getINode()->GetName())));
break;
case COLLADASW::Light::POINT:
colladaLight = new COLLADASW::PointLight(COLLADASW::LibraryLights::mSW, lightId, COLLADASW::Utils::checkNCName(NativeString(exportNode->getINode()->GetName())));
break;
case COLLADASW::Light::SPOT:
colladaLight = new COLLADASW::SpotLight(COLLADASW::LibraryLights::mSW, lightId, COLLADASW::Utils::checkNCName(NativeString(exportNode->getINode()->GetName())));
break;
}
// Retrieve the parameter block
IParamBlock* parameters = 0;
IParamBlock2* parametersSky = 0;
if (isSky)
parametersSky = (IParamBlock2*) lightObject->GetReference(MaxLight::PBLOCK_REF_SKY);
else
parameters = (IParamBlock*) lightObject->GetReference(MaxLight::PBLOCK_REF);
if (!parameters && !parametersSky)
{
delete colladaLight;
return;
}
if (parameters)
{
bool hasAnimatedColor = mAnimationExporter->addAnimatedParameter(parameters, MaxLight::PB_COLOR, lightId, colladaLight->getColorDefaultSid(), 0 );
colladaLight->setColor(EffectExporter::maxColor2Color(parameters->GetColor(MaxLight::PB_COLOR)), hasAnimatedColor);
}
else if (parametersSky )
{
bool hasAnimatedColor = mAnimationExporter->addAnimatedParameter(parametersSky, MaxLight::PB_SKY_COLOR, lightId, colladaLight->getColorDefaultSid(), 0 );
colladaLight->setColor(EffectExporter::maxColor2Color(parametersSky->GetColor(MaxLight::PB_SKY_COLOR)), hasAnimatedColor);
}
if (isSpot || isPoint)
{
int decayFunction = parameters->GetInt(isPoint ? MaxLight::PB_DECAY : MaxLight::PB_OMNIDECAY, mDocumentExporter->getOptions().getAnimationStart());
switch (decayFunction)
{
case 1:
colladaLight->setConstantAttenuation(0.0f);
colladaLight->setLinearAttenuation(1.0f);
break;
case 2:
colladaLight->setConstantAttenuation(0.0f);
colladaLight->setQuadraticAttenuation(1.0f);
break;
case 0:
default:
colladaLight->setConstantAttenuation(1.0f);
break;
}
}
else if (isSky)
{
colladaLight->setConstantAttenuation(1.0f);
}
setExtraTechnique(colladaLight);
if ( parameters )
addParamBlockAnimatedExtraParameters(LIGHT_ELEMENT, LIGHT_PARAMETERS, LIGHT_PARAMETER_COUNT, parameters, lightId);
else
addParamBlockAnimatedExtraParameters(SKYLIGHT_ELEMENT, SKYLIGHT_PARAMETERS, SKYLIGHT_PARAMETER_COUNT, parametersSky, lightId);
// add all the information to extra tag, that are not contained in IParamBlock
if (isSpot || isDirectional || isPoint)
{
GenLight* light = (GenLight*)(lightObject);
if (!light)
{
delete colladaLight;
return;
}
// Export the overshoot flag for directional lights
if (isDirectional || isSpot)
{
addExtraChildParameter(LIGHT_ELEMENT, OVERSHOOT_PARAMETER, light->GetOvershoot() != false);
}
addExtraChildParameter(LIGHT_ELEMENT, DECAY_TYPE_PARAMETER, (int)light->GetDecayType());
addExtraChildParameter(LIGHT_ELEMENT, USE_NEAR_ATTENUATION_PARAMETER, (light->GetUseAttenNear() != false));
addExtraChildParameter(LIGHT_ELEMENT, USE_FAR_ATTENUATION_PARAMETER, (light->GetUseAtten() != false));
exportShadowParameters(light);
if (light->GetProjector())
{
Texmap* projectorMap = light->GetProjMap();
if (projectorMap)
{
String imageId = exportTexMap(projectorMap);
if ( !imageId.empty() )
{
addExtraChildParameter(LIGHT_ELEMENT, LIGHT_MAP_ELEMENT, "#" + imageId);
}
}
}
}
else // isSky
{
Texmap *colorMap = parametersSky->GetTexmap(MaxLight::PB_SKY_COLOR_MAP, mDocumentExporter->getOptions().getAnimationStart());
String imageId = exportTexMap(colorMap);
if ( !imageId.empty())
{
addExtraChildParameter(SKYLIGHT_ELEMENT, SKYLIGHT_COLORMAP_ELEMENT, "#" + imageId);
}
}
addLight(*colladaLight);
delete colladaLight;
}
void Lighting::UpdateLights()
{
Matrix3 Mat;
int i;
ObjectState Os;
LightObject *LightObj;
LightState Ls;
RenderLight Light;
TimeValue Time = GetCOREInterface()->GetTime();
Interval valid;
Point3 Pos,Target;
m_Lights.clear();
for(i=0;i<sceneLights.Count();i++)
{
INode * Node = sceneLights[i];
Os = Node->EvalWorldState(Time);
if(Os.obj )
{
LightObj = (LightObject *)Os.obj;
LightObj->EvalLightState(Time,valid,&Ls);
Mat = Node->GetNodeTM(Time);
Pos = Mat.GetTrans();
Light.m_Angle = Ls.hotsize;
if(Light.m_Angle < 2.0f)
{
Light.m_Angle = 2.0f;
}
Mat = Node->GetNodeTM(Time);
Light.m_Dir = Mat.GetRow(2);
Light.m_Type = (RenderLightType)Ls.type;
Light.m_Pos = Pos;
Light.m_Dir = Light.m_Dir.Normalize();
Light.m_Color = Ls.color * Ls.intens;
if(Ls.useAtten)
{
Light.m_Atten = true;
if(Ls.attenStart <= 0.0f)
{
Light.m_InnerRange = 1.0f;
}
else
{
Light.m_InnerRange = 1.0f / (Ls.attenStart * 2.0f);
}
if(Ls.attenEnd <= 0.0f)
{
Light.m_OuterRange = 0.0f;
}
else
{
Light.m_OuterRange = 1.0f / (Ls.attenEnd * 2.0f);
}
}
else
{
Light.m_Atten = false;
Light.m_InnerRange = 0.1f;
Light.m_OuterRange = 0.00001f;
}
m_Lights.push_back(Light);
}
}
}
