Blender

Blender is free, open-source software for 3D content creation. Its development is coordinated by the Blender Foundation, with contributions from volunteer and professional developers around the world. It brings modeling, sculpting, UV unwrapping, texture painting, animation, simulation, compositing and video editing together in one program.

Render engines

Blender ships with two built-in render engines. Cycles is a physically based path tracer that runs on either the CPU or the GPU and is used for photorealistic results. EEVEE is a real-time engine, suited to fast previews, animation and stylized images. The same scene can switch between the two easily, which speeds up experimentation.

Blender in architectural visualization

For architectural visualization, Blender’s biggest draw is a complete production pipeline with no license cost. Models can be imported from programs such as SketchUp, Revit or Rhino, and add-ons written in Python extend it with tools for scattering plants, generating parametric elements and managing asset libraries. It is not dimension-driven the way CAD software is, so it shines at scene building, lighting and materials rather than technical drawing. The interface can feel dense at first, but a huge tutorial community makes learning easier. We look at where Blender sits among other tools in our comparison of the best 3D design software.