How to make my model less heavy so I can unwrap for UV mapping.
polycounter lvl 4
So i want to 'unwrap' my model so i can extract my UV map. i watched alot of tutorials saying that we have to set our model to the minimum sub division level. the problem is that i use Dynamesh all the time and never touched the 'Divide' button. now my model is really heavy and i cannot lower the sub division. and because it is heavy, i cannot 'unwrap' my model because i only have 8GB of RAM. i really need to unwrap it.... i dont know what to do.
Replies
(1) i sculpt with Dynamesh and ignore the divisions... am i doing it wrong? do most people sculpt with minimum dynameshing and use division alot? i am very worried, i dont want to throw away this sculpt.
(2) about UV mapping hair... so my hair is made of strands... do people generally extract the UV map for hairs like this? or just keep it that way?
(3) i saw that UV texture mapping can be done on subtools, but when i merge all the subtools together, the UV texture map becomes unusable... how am i going to make an .obj file if the uv texture maps become unusable?
sorry i am asking stupid questions, i only been doing 3D for about 3 weeks.
1) That's what I do. I start with basemesh from 3ds Max and subdivide it in Zbrush for sculpting. Or If I start with dynamesh, I do quick retopology with Zremesher to get some subdivisions. It's much easier to work with subdivisions.
2) You make hairs with alpha planes, that's how it's done today. Mostly hand painted textures for hair. You can find out more in Polycount's Wiki
3)If you merge objects, then their UVs combine and overlap, you have to manually move one part's UVs away from 1-1 square before doing so or do proper UV packing afterwards.
I strongly suggest you to study Polycount's Wiki thoroughly. It's a wealth of great and relevant information.
Some workflows I can think of are:
A. You can work with dynamesh all the way, then do a retopo and reproject your details back with subdivs.
B. You can work with dynamesh just to get the silhouette of the model, retopo that, and start using subdivs.
C. You can do what SuperFranky wrote, build a base mesh using an external 3d app (with good topology, that is also sculpting suitable), import that into zbrush and work with subdivs.
I'm pretty sure there are more workflows, these are the ones I know.
You should try various ways and see what suits you the most :]