http://greyscalegorilla.com/product/greyscalegorilla-light-gobos/

64 high-resolution textures across five collections to add some depth and texture to your lighting in Cinema 4D. Install with a click using the Greyscalegorilla Plus Library.
Exclusively in Greyscalegorilla Plus.Live in the shadows.Raise your hand if you’ve ever built an object for the sole purpose of emitting a shadow on your render. We’ve all done it. With new Light Gobos from Greyscalegorilla, the work is done for you. Plus Members now have 5 collections of Gobos to choose from...that’s 64 visual patterns to add drama to your render. Use Plants, Windows, Lines, Caustics, or Abstract patterns to break up the light and add visual depth to your image.

64 Black and White Texture Maps
Super Detailed, 4k Maps
Abstract
Windows
Plants

Lines
Caustics
Cinema 4D R20+
Works with the Greyscalegorilla Plus Library
Use wherever Jpgs are supported