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Project original high-res texture to retopo mesh export new high-res tex and uv mesh

ZBrush Usage Questions
#1

Hi Zbrush forums

first post here, I am trying to find best method to project a high-res texture to a re-topo’d model. Example, scan data - 16K texture:

Import scan, load texture and check UV ok
Polypaint create from texture
duplicate tool / sub-tool
edit duplicate subtool (remesher etc)
create new UV modified subtool (only 8k? max?)
Project all in subtool rollout
texture make from polypaint

Issue’s are:

  1. my texture even though I may be creating UV at 8K, quality/rendering looks really bad - certainly not using full range 8K tex (it’s 8192 alright, but image quality is severely bad - looks like 1k scaled to 8k).
  2. Also I want to work/export higher than 8K (usually I work 16K) - is this possible?
  3. Lastly, is my workflow incorrect general, can I use something like UV master? I have tried a little and gives me errors because I’ve tried copying UV from tris to new quad, this I understand - but is there a workaround? Keeping high res input tex - output high res tex quality?

Any help would be greatly appreciated as I am learning this new tool (zbrush!), thanks!

#2

You’ll have to covnert texture to polypaint, then transfer detail from one model to the other. The high level resolution for both models will need to be high enough to hold the color data as polypaint. See this page on transferring detail in zbrush:

http://docs.pixologic.com/user-guide/3d-modeling/topology/zremesher/transferring-detail/