To speed up 3D model work in Cinema 4D, optimize polygon count (remove unnecessary faces) and use proxies for complex parts—then tweak viewport settings and resources to boost speed.
- **Trim polygons**: Cut unused faces (e.g., inner surfaces, tiny details) to lower the poly count—fewer polygons mean quicker viewport rendering. - **Use proxies**: Replace complex high-poly sections with lightweight proxies—they display simply in the viewport but retain final render detail. - **Tweak viewport**: Disable non-essential effects (real-time reflections, subsurface scattering) and enable Level of Detail (LOD) for simpler versions when zoomed out. - **Manage resources**: Clear temporary cache files, allocate more RAM (if possible), and hide inactive layers—this instantly reduces viewport load.