ZBrush Tip: ZRemesher Curves for Precise Edge Flow and Local Density Control

Use ZRemesher Curves to steer edge flow and concentrate polygons exactly where your forms need support, without bloating the entire mesh.

• Preparation
  • Duplicate your SubTool before remeshing to preserve a high-res source for projection.
  • Enable symmetry if applicable so guides are mirrored for consistent topology.
  • Set Geometry > ZRemesher > Target Polygon Count for a reasonable base (e.g., 5–20K for character blockouts).
  • Enable KeepGroups/Keep Creases when polygroups or creases should constrain the result.
• Drawing effective guides
  • Select the ZRemesher Guides brush (B → Z → G) and draw strokes along desired edge loops: eyelids, mouth, nostrils, ears, shoulder/elbow/knee bends, mechanical panel lines.
  • Hold Alt while drawing to add arrowheads and enforce flow direction—great for orbit loops and lip rings.
  • Use closed or near-closed guide rings around high-motion areas (eyes, mouth, joints) to encourage clean loops.
  • Place parallel guides to “stack” support and encourage higher local loop density without raising overall polycount.
• Key ZRemesher settings for density control
  • Curve Strength: Increase toward 80–100 to tightly adhere to your guides; lower if you see zigzags or artifacting.
  • Adaptive Size: Higher values allow more polygons where guides and detail exist, fewer where forms are broad. Lower values aim for more uniform polygon size.
  • Use Polypaint: When enabled, grayscale polypaint can bias density (lighter = denser, darker = sparser). Paint a soft white mask around eyelids, lips, and panel edges to reinforce density before remeshing.
  • Freeze Border: Preserve open edges and UV borders during remesh passes.
• Practical workflow
  • Block in guides around facial rings, then add short, parallel guides along nasolabial folds and jawline for denser support.
  • For hard surface, lay straight guides along chamfers/panel lines and enable Keep Creases; use higher Curve Strength for crisp alignment.
  • Run ZRemesher; if loops collapse, slightly increase Target Polygon Count or lower Adaptive Size, then remesh again.
  • Project All from your duplicated source to recover detail; repeat with iterative ZRemesher passes (Same/Half) until topology and density are balanced.
• Troubleshooting and polish
  • Stray guide endpoints can cause pinching—erase/re-draw guides and reduce Curve Strength if needed.
  • If guides fight polygroups, try disabling KeepGroups temporarily, generate clean loops, then reintroduce groups.
  • Avoid over-guiding; a few strategic curves outperform dense “spaghetti.”
  • After remeshing, add edge support with creasing or Group Loops for subdivision-ready results.
• Pro tips
  • Use layers or incremental saves to iterate on guide layouts quickly.
  • Combine polypaint-driven density with guide placement for the best balance of flow and resolution—especially on eyelids, lips, and mechanical seams.
  • Acquire or upgrade ZBrush and related tools via NOVEDGE and keep your pipeline current.

For robust production pipelines—retopo, UVs, rendering, and plug-ins—explore the ZBrush ecosystem at NOVEDGE. Their knowledgeable team at NOVEDGE can advise on licenses, bundles, and workflows that fit your studio’s needs.