I can barely see the difference between “truecolor” mode and “compressed PVRTC 4bits” on my lightmaps in Windows but when I move to iOS, the difference is huge and the “compressed PVRTC 4bits” look horrible? why is that ? and Yes I already checked “override for iPhone, Quality Best”
(“true color” looks the same as in windows)
That’s because windows in no shape or form supports PVRTC 4 bits, and never has. And never will. It instead uses DXTC, which you should have realised by now. Look at the per platform settings carefully in your texture in inspector.
Yes I noticed that but even DXT5 looks way worse on my MAC iOS than it does on windows where it looks great.
Yes I double checked the per platform override.
The problem also goes for diffuse textures but specially light-maps.
http://i.imgur.com/Ie6UU.jpg
I have already encountered this problem once, and setting the compression quality (in the per_platform override) to best solved the problem but now it doesn’t seem to work.
http://forum.unity3d.com/threads/131128-PVRTC4-texture-showing-differently-on-PC-iOS
“Best” usually looks better (actually, a lot better) but it isn’t actually artifact free.
If the scene was more heavily textured you wouldn’t notice the artifacts so much. But with big flat colored only surfaces, even the slightest artifacts are visible.
“best” is looking almost like “normal”.
I am having the same problem even on contrasted diffuse textures, the difference is just huge, I have worked with PVRTC for a long time, there is just something weird hapening.
I also noticed that sometimes if in the texture inspector window the default compression is different than the per_platform attribute, I get viewport artifacts.
As I mentioned the difference even in contrasted textures is huge:
And what’s really odd is that “normal” seems to give better result than “best”.
What is the issue again? Compression has artifacts. Uncompressed doesn’t. You have to choose.
In that other thread where you show an image that has pvrtc on windows (this image : Imgur: The magic of the Internet ), notice how at the bottom of the inspector it says DXT5, not pvrtc. In short you were comparing PVRTC to DXT. And yeah DXT usually looks much better (although it compresses quite a bit less than pvrtc).
