Having just recently started using Carrara, and having come from a world of fx compositing. I am wondering if there is a way to generate multipass renderings from carrara? A photorealistic composite would be greatly enhanced if I could generate a diffuse, specular, occlusion, shadow, reflection, and grunge layer. In other higher end softwares this is easily accomplished, but I cannot figure it out in Carrara. Help me if you can. Thanx

In Carrara, those functions are found in render room under G-buffers. No options for grunge, shadows, occlusion or any lighting effects though. :-/ You can fake some of those using the G-buffers and object positions with Photoshop but it's not like working with RPF and Combustion. Hopefully, those will find their way into a future version of Carrara. But for the entry level price of Carrara, I guess I can't complain too loudly. Nothing wrong with wanting a program that does everything and doesn't break the bank? Right? :-D Mark

Shoestring Shaders has multipass ability. I have not used this function yet, but I have read about others that have on the other Carrara forums, and I believe someone has done a tutorial on using it.

Shoestring Shaders are GREAT. I have them but have not experimented with the Multi-pass shaders. Looks like I'll have to start playing a little more...

Attached Link: http://market.renderosity.com/mod/forumpro/showthread.php?thread_id=996262

Have a look at this as well. This isn't quite traditional multi-pass rendering, but is also a really useful tutorial using multi-pass rendering on Carrara's lights rather than the model textures. It's what I use to keep render times & proccessing/memory usage down. Once you've set your lighting images up in Photoshop you can still use the G-Buffer information to control depth of field etc.

Attached Link: http://www.des-web.net/html/multipasssample.html

Pretty sure the tut was off of Mark's site. Try this.

Here is a multipass tutorial we did for Studio Monthly Magazine http://www.studiodaily.com/studiomonthly/searchlist/5108.html David Bell www.HDRVFX.com (did you get your free HDRI/Panoramic backdrop set?)