Material behaviour changes without any apparent reason

[TeoRossi93]

Hello guys,

I was going to render an animation I'm working on but after few frames I noticed that something was wrong. The behaviour of the plastic and liquid material (image attached) are completely different from my tests!!!
I can't understand what happened, I just added render passes and tweaked some animation curves before rendering the whole thing.
I'm using a volume scattering for both plastic and liquid.
On the left is the image as it should be, on the right is how it renders at the moment.

[TeoRossi93]

Ok guys I solved the problem. The multipass tag applied to a material modify it's aspect, I don't know if I'm missing something or if it's just a bug.

[TeoRossi93]

Ok guys I solved the problem. The multipass tag applied to an object modify it's aspect while rendering, I don't know if I'm missing something or if it's just a bug.

[BigAl3D]

Are you saying a Corona Compositing tag? I've never heard of a Multipass Tag.

[TeoRossi93]

Are you saying a Corona Compositing tag? I've never heard of a Multipass Tag.

Since compositing tag is used to create multipass masks I did a mistake when writing the topic. Of course is the compositing tag.

[BigAl3D]

Just wanted to make sure. So what settings did you use on the Compositing Tag? Are you separating several element onto their own layer? Are you exporting a AE comp or are you manually stacking your layers?