ZBrush Tip: Curve-Guided ZRemesher Workflow for Animation-Ready Topology

Guide ZRemesher to deliver animation-ready edge flow by combining curve guides, polygroups, and smart settings—fast, predictable, and repeatable.

1. Prepare safely
   • Duplicate your sculpted SubTool (Tool > SubTool > Duplicate). Keep the original for projection.
   • Enable PolyFrame (Shift+F) for clear visual feedback.
2. Anchor form with Polygroups
   • Create Polygroups around landmarks (eyes, mouth, nostrils, ears, joints, panel lines): Group Visible, Group by Normals, or Group by Mask.
   • Turn on KeepGroups in ZRemesher to lock those boundaries into the new topology.
3. Draw ZRemesher Guides
   • Select the ZRemesher Guides brush (Brush palette) and sketch curves where you want loops to flow: around the mouth/eyes, along the jawline, down limbs, or across hard edges.
   • Favor long, clean guides that follow primary forms; avoid dense scribbles—fewer, well-placed curves work better.
   • Mirror your guides across symmetry for consistent results (Transform > Activate Symmetry).
4. Core ZRemesher settings
   • Target Polygons Count: set a realistic goal for the current stage (e.g., 5–15k for heads, 10–30k for bodies).
   • Adaptive Size: 0–10 for uniform quads; 20–50 to preserve more form detail.
   • Curve Strength: increase if guides are being ignored; decrease for more automated flow.
   • KeepGroups ON to preserve group borders; Smooth Groups at low values to soften internal transitions.
   • Keep Creases ON if you’ve defined hard edges via Crease.
   • Detect Edges ON for hard-surface; OFF for organic sculpts.
5. Density where it matters
   • Enable Use Polypaint and paint white where you need more density (mouth corners, eyelids, knuckles); paint darker where you want fewer polygons.
   • Tune Polypaint Strength to balance density distribution.
6. Execute and iterate
   • Click ZRemesher. If loops miss targets, raise Curve Strength, refine guides, or add supportive Polygroups.
   • Use Half/Double to quickly step polycount down or up while preserving flow.
   • For open borders, enable Freeze Border to maintain silhouette edges.
7. Project details back
   • Subdivide the new mesh incrementally and use Project All after each level to recover form and micro detail from the original.
   • Clean with Smooth (light pressure) between projections to avoid lumpiness.

• Organic targets: Establish circular loops for eyes and mouth, flowing rings around shoulders/hips, and longitudinal loops down arms/legs for deformation-friendly skinning.
• Hard-surface targets: Crease critical breaks, use Polygroups for panels, keep Adaptive Size higher, and lean on Detect Edges to retain corners.

• Troubleshooting
  • Guides ignored: Increase Curve Strength, simplify curves, and ensure symmetry is active.
  • Spirals or pinching: Lower Adaptive Size; add a polygroup seam or an extra guide across the trouble area.
  • Stretchy quads: Paint density or raise Target Polygons Count; insert a guide perpendicular to the stretch direction.
  • Jagged borders (holes/shells): Enable Freeze Border; Check normals and close micro-holes before remeshing.

• Speed tips
  • Lightly decimate very dense scans before guiding to speed up iterations.
  • Work broad-to-narrow: establish major loops first, then refine density with polypaint or a second pass.

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