This week I focused on internal engine technology again, and was planning to make a video anyway, but ended up programming all day instead. There will definitely be a video next week though!
Here are the changes for Alpha 179:
Background texture conversion
Image sampler and heightmap caches
New animation cache system
Fix for strange particle colors on Red Shards
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I'm thinking that blog posts might be more appropriate than videos when I'm doing tech work -- would you be interested in blog posts about game file systems? It's not as flashy as graphics or physics, but arguably more important.