I’ve reached that point in the development of my game engine I’ve been dreading: I’ve got to implement a scroll pane for UI.

I use harfbuzz for layout, which uses Freetype metrics, so the hard thing was getting those to line up with the glyph metrics emitted by MSDFgen.

Finally got my engine’s distance field font rendering (top) looking PRETTY MUCH as good as bitmap fonts (bottom). Already starting to think about what it might look like to move away from atlases altogether and just rasterise glyph vectors on the GPU…

Got my layout being actually flexible now with preferred dimensions, expand, and fill. Alignment next. Loosely basing it on GTK because I like using GTK!

Finally got around to reconfiguring the debug UI in Growl, rendering the game scene into an Imgui window - starting to look like a real engine now.

Just got myself unstuck from a tricky Lua-C interop thing that I’d been going round in circles on for weeks now. Pleased!

Been playing with shader support in Growl - shaders can now be edited in realtime, and have built in uniforms like resolution and time. Goal is to be able to paste in whatever from Shadertoy and have it work!

A bit buggy but I now have Lua scripting inside Growl’s debug UI!

I replaced the debug cat image in Growl with a picture of our actual cat. So long debug cat, you served us well.