No blur on experimental branch

[erdemoney]

Platform: Void Linux glibc

GPU, drivers, and screen setup: laptop screen , intel integrated graphics

Compton version: feature/dual_kawase branch, picom (vgit-c67d7)

Compton configuration: simple config for testing

inactive-opacity = 0.6;
active-opacity = 0.8;

blur-method = "dual_kawase";
blur-strength = 6.9;

backend = "glx";

Steps of reproduction

Install experimental branch from source. Run via "picom --experimental-backends" with above configuration.

Expected behavior

Pretty blurred windows

Current Behavior & Other details

Windows are only transparent with no blur. I have tried configuring it only with command line flags (i.e picom --experimental-backends --blur-method dual_kawase --backend glx), and dropping in other peoples configs for this branch and still have no blur only transparency.

[erdemoney]

I just added "blur-background-fixed = true" to my config and have blur! Not sure if this is expected behavior but its working now.

[tryone144]

Just for future reference: blur-background-fixed = true fixes your issue here because this implementation adjusts "blur-opacity" based on the window opacity (see related #33, #25). This has already been changed in the upstream PR, to avoid this kind of confusion.

Furthermore, the dual-filter kawase algorithm only supports integer strength-levels. Your setting of blur-strength = 6.9; will be interpreted as level 6.