Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
V-Ray - Learn why V-Ray for 3ds Max’s powerful CPU & GPU renderer is the industry standard for artists & designers in architecture, games, VFX, VR, and more.
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.