How to Create Folds with Blender Cloth Brush

Blender’s Cloth Brush allows 3D artists to sculpt realistic fabric, wrinkles, and folds using real-time physics simulations directly in Sculpt Mode. By adjusting key settings like deformation type, brush mass, and collision limits, you can quickly achieve believable cloth behavior without waiting for full physics bakes. This guide outlines the essential steps to prepare your mesh, configure the tool, and master brush techniques for sculpting dynamic folds.

1. Prepare Your Mesh

The Cloth Brush relies on underlying geometry to calculate realistic physics.

  • Add Resolution: Ensure your mesh has enough vertices to deform smoothly. Apply a Subdivision Surface modifier or use the Remesh tool in Sculpt Mode (Voxel Remesh around 0.01 to 0.005 depending on scale).
  • Apply Scale: Press Ctrl + A in Object Mode and select All Transforms so the physics solver calculates scale accurately.

2. Access the Cloth Brush

  1. Switch to Sculpt Mode from the top-left mode dropdown menu.
  2. Select the Cloth Brush from the toolbar on the left (represented by a folded fabric icon).

3. Configure Essential Brush Settings

Open the Tool Settings panel on the right (N key or upper top bar) to customize how the fabric responds:

  • Deformation Type: This controls how the cloth interacts with your stroke.
    • Drag: Pulls the cloth along the stroke direction, creating broad folds.
    • Push: Pushes fabric inward, useful for deep creases.
    • Pinch: Pulls fabric toward the brush center, ideal for sharp peaks and gathered cloth.
    • Pinch Point: Gathers cloth toward a single point to simulate pinched fabric.
    • Expand: Increases fabric area, creating bunches and localized wrinkles.
  • Cloth Mass: Lower values make the fabric feel light (like silk), creating finer wrinkles. Higher values make it feel heavy (like canvas or leather), producing larger, stiffer folds.
  • Simulation Limit: Restricts the physics solver to a specific distance around the brush cursor. Increasing this allows larger portions of the mesh to react to your stroke.

4. Techniques for Sculpting Realistic Folds

Creating Tension Folds

Tension folds occur between two fixed points.

  1. Set Deformation to Drag or Grab.
  2. Click and drag from one anchor point toward another to stretch the fabric.
  3. Switch to Pinch to sharpen the ridge of the tension fold.

Creating Drop or Hanging Folds

  1. Set Deformation to Push or Expand.
  2. Turn on Use Gravity under the brush's Cloth Simulation settings.
  3. Brush downwards on hanging sections to let Blender's internal solver pull the fabric downward into natural hangs.

Using Collisions

To prevent the cloth brush from sculpting fabric straight through underlying mesh objects (like a character's body):

  1. Enable Cloth Collision in the Brush options menu.
  2. Ensure target objects are set as Collision physics objects in the Physics tab.

5. Workflow Tips for Better Control

  • Use Masking: Press M to draw a mask over areas you want to remain stationary (like seams or anchored straps). Invert the mask (Ctrl + I) if necessary.
  • Lower Brush Strength: Keep brush strength around 0.10 to 0.25 for subtle, controllable layers of folds rather than aggressive geometry distortion.
  • Combine with Smooth Brush: Hold Shift while brushing to gently smooth out harsh topology glitches generated by the physics solver.