Free renderers?

 From:  Frenchy Pilou (PILOU)
82.11 In reply to 82.10 
Geometry Support by Gelato :)
• NURBS, bicubic, and bilinear patches
• Polygon meshes
• Subdivision surfaces
• Curves (hair)
• Wide curves (feathers and ribbons)
• Particles
• Procedural geometry plug-ins
• Arbitrary user-specified vertex variables