Render “complete” image only with multi-passes?

[Adam Trachtenberg]

Yes, you can render a complete image with just multipass. The surefire way to do it is to add the blend pass and check off all the boxes. Of course you can uncheck any that you know won’t be used.

Easiest way to see the results is if you have AE or one of the other supported compositors. With AE you just export the compositing file, open it in AE, and it will automatically create a comp for you with the layers arranged with appropriate blend modes.

[Nikolay Vladimirov]

I tried this method but in AE I have only one “beauty” pass. How to make a advanced multipass composite that is the same with the beauty pass?

As I know there is 3 way to composite multipass:

Additive: in vray you combine – Lighting+GI+Reflection+Refraction+SSS+Selfilum+Specular (everything is in Add blend mode in Ae)

Advanced Additive is the same but with more passes you combine GI Raw, Raw reflection etc.

Subtractive – From your beauty pass you Subtract (blending mode) one of the multipass channels (reflection) and in the next layer you use Add to add it again and that way you can do tweaking only on the layer that you first subtracted and than added again.

In all of these techniques the bauty should be exactly the same as the multipass compiste. I know how to do it with v-ray but what about standard Cinema 4d multipass?

[Nikolay Vladimirov]

I tried this method but in AE I have only one “beauty” pass. How to make a advanced multipass composite that is the same with the beauty pass?

As I know there is 3 way to composite multipass:

Additive: in vray you combine – Lighting+GI+Reflection+Refraction+SSS+Selfilum+Specular (everything is in Add blend mode in Ae)

Advanced Additive is the same but with more passes you combine GI Raw, Raw reflection etc.

Subtractive – From your beauty pass you Subtract (blending mode) one of the multipass channels (reflection) and in the next layer you use Add to add it again and that way you can do tweaking only on the layer that you first subtracted and than added again.

In all of these techniques the bauty should be exactly the same as the multipass compiste. I know how to do it with v-ray but what about standard Cinema 4d multipass?

[Nick Barber]

Was this ever resolved by any chance?

[Nick Barber]

Figured this issue out.

Using the additive compositing technique I was able to re-build the ‘Beauty’ pass using C4D renders only.

Multi-Passes in C4D:
Separate Lights – All/Mode(doesn’t matter)/Shaddow Correction checked
Ambient Occlusion
RGBA Image
Global Illumination
Specular
Refraction
Reflection
Shadow

Ordering should look like this in while compositing in AE: (top to bottom)
RGBA – Stencil Alpha
AO – Multiply
Refraction – Add
Reflection – Add
Global Illumination – Add
Lights – Add
Shadow – Multiply
Specular – Normal

In C4D make sure in the render settings you set ‘sparate lights’ to ‘ALL’ and check ‘shadow correction.
This will render out a pass for each light separately and allow for more flexibility in post.

If anyone else has other compositing techniques please feel free to add.

Cheers!
-Nick