Originally posted by nanonyme
View Post
Announcement
Collapse
No announcement yet.
More Optimizations Coming To LZHAM
Collapse
X
-
Originally posted by nanonyme View PostDo they seriously trust compression schemes used by GPU vendors so little?
Efficient compression algorithms however drag several MB of Tables along, if you ever tried to peel a single small file from a solid lzma archive then you may have noted that it can take just as long as decompressing the whole archive.
Civ5 has the textures compressed efficiently on HDD, then AFAIR unpacks them (CPU) and re-compresses them via GPU so the GPU can then directly decode them. There is compression-code for just that from Nvidia atleast, so I am not sure how custom their compression is (I guess not at all).
Btw, S3TC isnt state-of-the-art for quite a while. Still any format for realtime decompression of random small blocks will have fundamental limitations against any serial big-block formats.
Comment
-
Originally posted by siavashserverThis part doesn't make much sense to me.
Since not many games actually do this, you aren't alone in questioning the value.
Think of backing up your music as FLAC, and then compressing it to mp3 because one of your players doesn't support it.
You can read the paper about Civ5 texture compression here
Comment
Comment