How to fix grainy in cosmetics 3D models?

To fix grainy cosmetics 3D models, use high-resolution original textures (avoid upscaling low-res ones) and enable anti-aliasing (like MSAA or SSAA) in your 3D software. Grain typically comes from low-res textures missing fine details (e.g., product logos, metallic finishes) or harsh lighting—soften lights with area lights instead of point lights to cut down on noise. For a quick check, use uncompressed texture formats (PNG/TGA) and test small anti-aliasing adjustments to balance quality and workflow speed.