Cinema 4D Global Illumination: IR Cache Trick

I've been working on a couple new projects in Cinema 4D using the Global Illumination part of the Advanced Render module. Of course, getting pretty pictures means waiting a long for a render. Thanks to Ross Gerbasi of Popcorn Island, I learned how to pre-cache the Irradiance calculated which speeds up my renders by a lot. You can see his original post at Popcorn Island.

However, I come across a little gotcha. If you don't have the Save Dialogue Box checked, Cinema 4D will not save the cache file.





Without the Save Dialogue checked, the Auto Save in the Irradiance Cache window will remain grayed out.

But, once you check Save (and you don't need either of the boxes checked for render destinations) Cinema 4D will auto-save your cache file for you. Assuming you have checked the appropriate settings. Check out Ross's awesome ( Rossome?) tutorial at Popcorn Island for instructions on how to set this up.





If you select Pre-Pass only in the IR window, C4D will calculate the IR cache and be done with it.

Just a short little trick, one that held me up from a render for a couple hours. Hope this helps you!

Special thanks to Nick Campbell at Greyscale Gorilla for his great work in educating the community.

Comments

[Ronald]

You sir, are my hero. It was driving me nuts trying to figure out why this was disabled.