Subject:
I want to render out a knob animation in png frames for a free UI project. Attached you see the final rendering.
The Knob + lights are in a Null-Object Group and the grey background a single plane with a hole.
Problem:
I can’t get it how to have only the knob + lights visible and the grey backround transparnet (alpha)
Question:
How I have to (step by step) set the scene/settings up that the knob + lights are visible only (with shadows) & the grey bg is not visible / transparent?
Ok maybe I wrote not clear enough - attached what I want as the goal.
So, the picture has 3 main elements:
knob with shadow
lights
grey background
My goal is to render out DIRECT a png file where the original grey background (3.) does not exist No further Photoshop should be required. In the attachement is a png. So, if you would have some new red background, you would see the new red background behind the knob & lights (attachment “bg-example”).
The lights & the knob with the shadow (1+2) have to be still fully visible.
Again: Render out a totally normal png file (Knob, Shadows, Lights), only without the grey background of my first post, no further Photoshop actions should be required, just a png with transparency.
It is possible. You need to use shadowcatcher for the background and set its alpha mode to “for composite”. Then save the render to png or tiff with alpha. See attached example. Is this what you’re after?
I hope you can help me more in this.
I tried shadow catcher different alpha modes… but transparent background non of them works with psd…!
Only png works.
Anyway to get transparent background with multi-pass…?
Does it save alpha channel with PSD? If so, you need to apply mask to layers of interest. If alpha channel is not saved, then you need to save it separately, import it into PSD and apply the mask.
shadow catcher, set alpha mode to compositing.. and floor comes black…
in this way… two saves, one png for transparent background and second normal psd.
and then place png in psd multi-pass file and play…!
