MatCap (Material Capture)

Check surfaces without lights.

The Workflow

1. In the top right of the viewport, click the Viewport Shading dropdown arrow (next to the Solid mode sphere).
2. Click MatCap.
3. Click the sphere icon to choose a material (Red Wax, Chrome, Clay).

The Usage

MatCaps are fake lighting textures baked onto a sphere. The Red Wax is legendary for sculpting because it highlights surface imperfections. The Zebra Stripe is used to check surface continuity on cars/hard-surface models.