Scaled projectile decals

[Scuba Steve]

OK, so question about the plasma gun's decal. ZDoom uses the plasma gun projectile as an alpha overlay for the decal it applies to walls. In the case of projects that apply a filter to upscale projectiles, the alpha decal gets distorted and stretched on the wall. All things considred, shouldn't the alpha map scale appropriately and match the original size of the projectile?

[Graf Zahl]

Please post a runnable example for testing.

[Scuba Steve]

https://drive.google.com/open?id=1utCNn ... xBBQU57C94