Picom: Picom not fading while the window is being closed

[samokosik]

Platform

Newest Arch install. LTS kernel - 5.4.91-1-lts

GPU, drivers, and screen setup

NVidia Quadro m1000m, nvidia-lts drivers, 1 monitor.

Environment

I use picom with i3-gaps. Remember that I use experimental backends version

picom version

Picom version: vgit-d9743
command ran: picom --version

Configuration:

Link: https://github.com/samokosik/setup/blob/main/picomconfig

The Important part:

# Fade windows in/out when opening/closing and when opacity changes,
#  unless no-fading-openclose is used.
# fading = false
fading = true;

# Opacity change between steps while fading in. (0.01 - 1.0, defaults to 0.028)
# fade-in-step = 0.028
fade-in-step = 0.028;

# Opacity change between steps while fading out. (0.01 - 1.0, defaults to 0.03)
# fade-out-step = 0.03
fade-out-step = 0.03;

# The time between steps in fade step, in milliseconds. (> 0, defaults to 10)
# fade-delta = 5

# Specify a list of conditions of windows that should not be faded.
# fade-exclude = []

# Do not fade on window open/close.
# no-fading-openclose = false

# Do not fade destroyed ARGB windows with WM frame. Workaround of bugs in Openbox, Fluxbox, etc.
# no-fading-destroyed-argb = false

Steps of reproduction

1. Set picom experimental version to a configuration with fading.
2. Try opening a window (you will see sth like an animation - picom will fade the opening)
3. Then close and picom will not make a nice animation (fading) as it made during opening.

Expected behavior

What I should see is a fading during the window closing as well. it should be similar to fading when window is opening.

Current Behavior

When I close the window, no fading is there. Behaves the same way as with fading tuned off.

Stack trace

Other details

Not my setup: https://preview.redd.it/7n3qj3wtbp151.gif?format=mp4&s=eca8016ea26f1daa392985feab830472925fdde5

The problem is visible, though. Fading when the window is closing is not there.

[samokosik]

is possible to do anything with this?

[kwand]

I seem to have the same issue, so I can corroborate on this issue whenever this is further investigated into. (I just discovered your issue here; always been wondering why it seemed like closing windows seemed faster than opening them, with fading turned on).

I'm also using an NVIDIA card (RTX 2080) with i3-gaps on the experimental backends.