decino

Behind the Scenes

Added 2024-12-13 22:53:32 +0000 UTC

If you've ever wondered how I make sprite animations with tic-perfect frame durations, it's done through a web app I wrote.

The web app reads the WAD file(s) and groups all the sprite lumps together and automagically inserts each group into a drop-down list. All the correct sprite offsets are set as well.

The frame animation data including frame tic durations are read from a modified info.c, which is what the Doom engine also uses for all the sprite animations and whatnot.

With the other drop-down lists you can then select the animation and one of the eight orientations. Sprite mirroring is applied if necessary. Then a GIF animation can be generated which is then used for the video.

I use Revenant100's sprite fix WAD to get rid of sprite anomalies and messed up offsets. There are some sprite animations in vanilla Doom that jump all over the place because of incorrect offsets which can get quite ugly.

I do want to release this tool someday for other Doomers/YouTubers that wish to create frame-perfect animated sprites, but right now I want to add more features such as actually using the correct aspect ratio and make it a lot more user friendly without having to set up a local server.