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[Closed] Create Skylight in Max SDK?

 
 bitwise
Feb 16, 2015 8:33 pm

Does anyone know how to create a Skylight in 3DS Max SDK?

I’ve been all over the sdk docs and can only find methods for creating basic lights(spot, omni, directional)

4 Replies
 Tamyl
Feb 16, 2015 8:33 pm

Create it like any other objects, you only need to know its ClassID.

1 Reply
 bitwise
(@bitwise)
Joined: 11 months ago

Posts: 0
Feb 16, 2015 8:33 pm
Reply toTamyl

I did find a CreateInstance method which I assume will do that, but how do I get the class ID?
I spent hours searching the docs and examples with no success.

I did find some code which enumerates all material names, which I needed to create an Oren Nayar Blinn material… is there something similar that will enumerate all class names and their IDs?

Thanks

 Tamyl
Feb 16, 2015 8:33 pm

I don’t know which file contains lights ClassID, but you can obtain it even through maxscript, just create this light, select it and type

$.classid
 Klvnk
Feb 16, 2015 8:33 pm

this should work for you…

enum { ksl_Color, ksl_Sky_Color_Map_Amt,ksl_Sky_Color_Map, ksl_Sky_Color_Map_On, ksl_Rays_Per_Sample, 
		ksl_Skylight_Mode = 7, ksl_Multiplier = 10,ksl_Ray_Bias,ksl_Cast_Shadows, ksl_On};

	Object* skylightobj = (Object*)GetCOREInterface()->CreateInstance(LIGHT_CLASS_ID, Class_ID(0x7BF61478,0x522E4705));
	INode* skylightnode = GetCOREInterface()->CreateObjectNode(skylightobj);


	TimeValue t = GetCOREInterface()->GetTime();

	for(int i=0; i < skylightobj->NumRefs();++i)
	{
		ReferenceTarget* ref = skylightobj->GetReference(i);
		if ( ref && ref->SuperClassID() == PARAMETER_BLOCK2_CLASS_ID )
		{
			IParamBlock2* pb = dynamic_cast<IParamBlock2*>( ref );
			if(pb)
			{
				pb->SetValue(ksl_Color,t,Color(0.5f,0.5f,0.5f));
				pb->SetValue(ksl_Sky_Color_Map_Amt,t,50.0f);
				pb->SetValue(ksl_Sky_Color_Map,t,(Texmap*)CreateInstance(TEXMAP_CLASS_ID, Class_ID(MARBLE_CLASS_ID,0)));
				pb->SetValue(ksl_Sky_Color_Map_On,t,0);
				// etc...
			}
			break;
		}
	}