No alpha channel. Why it happens?

Hi! Could you help me please? I am trying to render simulation using Premultiplied/Straight Alpha option in Render Export settings (screenshot is attached).

But after rendering checking Alpha channel in After Effects I don’t have it (screenshot is attached).

Could you tell me please why it happens?

Hi Tom, can you check your connections in the Render Node? It should look something like this

Thank you so much! I don’t know why I thought it is enough to set flag to “premultiplied alpha” to get render with alpha channel… Yeah, I am strange…

No worries, there are a lot of menu items and it’s tough getting used to the intricacies of new software. Let me know if you need any assistance in the future!

Hi Clark. Could you help me please with Liquigen now?..

In all scene presets in Liquigen liquid fills the primitive soooo slowly. No matter which option I set. It can be low or high density, low or high flow rate, low or high number of sub-steps. Low or high max. number of voxels and so on and so forth.

I attached here video screenshot.

I tried all settings. Nothing changes.

It takes more than 5000 frames to wait for the glass to be filled with a strong liquid pressure.

AND YES. LIFETIME RANGE OF PARTICLES IS MAXIMUM. PARTICLES ARE NOT KILLING!

Please, help me…