What are free tools for color environment 3D models?

Free tools for color environment 3D models include Blender, GIMP, and Paint 3D—all let you paint textures, adjust colors, and design 3D environments at no cost. Blender has built-in texture painting and lighting tools for detailed 3D assets; GIMP edits 2D textures to apply to 3D models; Paint 3D (Windows-only) is simple for adding colors to basic 3D scenes. For beginners, try Paint 3D for straightforward color work or use Blender’s free tutorials to learn texture painting for more complex environments.