Projecting details in Zbrush / by Xuan Prada

  • Export the lowest subdivision model.
  • Export the highest resolution model.
  • Work on the uv mapping using the lowest resolution model.
  • Go back to Zbrush and import the high resolution model.
  • Now import the low resolution model.
  • Select the high resolution model and go to Subtool -> Insert -> and select the low resolution model.
  • Once inserted you will see both models overlapped in the viewport.
  • You need to be complete sure that only the two models that you’re interest on are shown. All the additional stuff that you would have in your zbrush scene should be hidden.
  • Select the low resolution model and subdivide it as much as you need.
  • Store a Morph Target so you can always come back to the starting point in case that you need it in the near future. (and you will).
  • With the low model selected go to Subtool -> Project -> Project All
  • The most important parameters are Distance and PA Blur. Try to use low values as Distance and keep blur to 0. This is a trial and error process. Default distance value is a really good starting point.
  • Once the projecting process is done, check your model.
  • If you find big errors in the mesh try to use a Morph brush to reveal your original mesh. Remember that we stored a Morph Target while ago. Revealing the original model you can easily remove projection artifacts and sculpt quick fixes.
  • You are ready to export the displacement maps for this model. Just select the low resolution model and go back to the lowest subdivision level.
  • Check the screenshots to see the parameters that I’m using for 16bits 32bits and vector displacement.
  • Check the final displacement maps.

You can watch a detailed video tutorial with all these steps here, only available in Spanish.

Si quieres puede ver aquí un videotutorial con todos estos pasos y explicaciones más detalladas.