Chaoscope 

Renders 3D strange attractors - 5 rendering modes (including raytracing with shadows and specular highlights) and 11 equations available (Julia, IFS...). Preview of the attractor which changes in real-time when you drag the parameters sliders.
3d strange attractor fractal render freeware chaos

TNT Screen Capture 

TNT Screen Capture - the best capture tool available. TNT has all the goodies and helpful functions you have been missing with other screen capture tools.
screen capture snapshot

Texture Maker 

Texture Maker is a seamless texture generator and designer. The application contains everything needed to create seamless textures for use in 3D rendering packages, game development, web graphics, image and video editing.
tiles textures backgrounds wallpaper seamless generator image processing dtp 3d rendering games development maps levels