RTT lightmap multiple objects in Max
Hi, I want to bake in 3d Max and vray a lightmap of all the objects of the scene, (a total of 438 ). But I couldn't imagine that it would be such a headache..
The first problem I find is that I can't open the unwrap modifier as they are too many objects.
But not only I can not make the unwrap, I also have realised that even if I can, I wouldn't be able to render one lightmap because RTT only can bake a texture per object..
So I can only think in 2 options:
- Attach all the object in one unique so I can unwrap and bake it, which means to lose some modifiers, instances, etc, and of course a lot of work and time wasted detaching them again.
- Use flatiron but unfortunately this option is very expensive for me.
Is there any other script, or trick that I don't know about? Are these the only options I have?
I am thinking in some sort of script that could attach keeping the information from the original object so it can be restored after unwrapping and baking.
Is there anything similar?
The first problem I find is that I can't open the unwrap modifier as they are too many objects.
But not only I can not make the unwrap, I also have realised that even if I can, I wouldn't be able to render one lightmap because RTT only can bake a texture per object..
So I can only think in 2 options:
- Attach all the object in one unique so I can unwrap and bake it, which means to lose some modifiers, instances, etc, and of course a lot of work and time wasted detaching them again.
- Use flatiron but unfortunately this option is very expensive for me.
Is there any other script, or trick that I don't know about? Are these the only options I have?
I am thinking in some sort of script that could attach keeping the information from the original object so it can be restored after unwrapping and baking.
Is there anything similar?
Replies
I am not worried about doing the packing and unwrap in 3d max, I know how to do a proper one, using texel density with textools and pack afterwards, you can get a good UV for lightmap.
Anyway I know the lightmap unwrap option in Blender and I agree with you that is quite good getting an automated UV.
But export to other program will only give me more headaches in my workflow. Besides I would lose the smoothing groups if I export to blender. I don't know how you did export but AFAIK with the obj format you can only have 1 UV channel.
Regardless I'm using FBX in my content pipeline which supports multiple UV channels.
Good luck.
This bakes multiple maps and combine them afterwards. You'd better not use a big padding as it will overlap. But as the alpha is saved, you can still apply a dilatation with xormal filter in photoshop.
I think this way is preferable compare to a script that would combine the objects, detach while keeping the pivot informations, etc...
baking normal maps and I couldn't find anything like this. Thanks for the contribution
But I don't believe that it will be useful in my case, because the combine maps process
is made afterwards, so I would have the same problem as with RTT, It will make 438
renders of Global illumination, one each per object in the scene. I can not afford
this.
I think I'm condemned to attach the objects..
Jameswild I didn't realised that you werent working with 3dmax. Thanx anyway for the idea
I've found a script that could be interesting for detaching automatically:
http://www.scriptspot.com/3ds-max/scripts/detach-by-material-id
Not a solution at all, but better than nothing.
I don't know if autodesk has fixed this problem with RTT in the last versions of Max, but I think it should be improved because it's a important handicap in the workflow for videogames.
Thanx anyway:)