Emulator

With Fog disabled:
http://imageshack.us/photo/my-images/402/unledclv.png/

List the full name of the Turtle game, it's not just TMNT.

And attach a dff please.

@tommy
What are you talking about? It's TMNT everywhere that I see. That's the full name of the game....you must be thinking of something else. What do you think it is?

@parlane
Here's ya go!
http://d01.megashares.com/dl/3zKaABL/tmnt.dff

Confusion is that this is my TMNT game http://i.imgur.com/8sXE0.jpg which is not your TMNT game. The game ID should be enough but next time just add some more info if possible. There are like 10 TMNT games. :p

it is just TMNT http://www.gametdb.com/Wii/GYRE41

Download link broken, please upload the dff file somewhere else where it doesn't get deleted after less than 3 months..

It's actual still there - you have to copy/paste the link into address bar. Doesn't work for some reason just clicking on it.

Anyway, I also put it on Mediafire here: http://www.mediafire.com/?mx7w110e1q5u8mw

For reference, my previous comment was likely wrong. the scaling exponent does seem to be fine.

Please provide a save file for the game and steps to reproduce the issue with minimal effort and without assuming I've ever seen the game in action. I'm running the game at 10 FPS and really don't want to play through the first few levels just to see I've done something incorrectly.

https://skydrive.live.com/redir?resid=BB6DBB7514C6BD0F!356

Simply load up on save on this GC mem card, and select level 6.

Reproduced the issue, happens even in Interpreter mode. Still not quite sure what to do about this :|

Wonder why disabling fog fixes it...

The fog values are invalid. The fog strength is set to infinity, so it's no surprise that you can't see anything but green :p

Revision c02ca4f1ece1 in the ppc_fp branch (non-IEEE mode emulation) seems to fix this issue. It seems like the branch also makes the game reboot when trying to load the memory card, but you still use state saves to get ingame and it'll render fine.

JITIL isn't a work-around for this any longer, and I can't find a build where it was a work-around.

Can we just clamp the fog to some arbitrary value? Maybe someone could make a hwtest to fix fog issues. Surely any clamped value is better than having full fog.

Is this that what breaks Legacy of Kain as well?

Clamping fog would be a hack and there already is one that just disables fog completely.

It hasn't been fixed since 2011, scratch that It's never worked.

I think clamping makes sense. Some audio issues were fixed by clamping it's volume.
This would be similar in clamping fog volume as it were.

It's got to be an improvement, right? yes

No. Clamping volume was the accurate behavior to console. Clamping fog doen't appear to be accurate at all.

I know it's been a while... but...

Fixed in PR6348 - https://github.com/dolphin-emu/dolphin/pull/6348

That PR has been merged: https://dolphin-emu.org/download/dev/4515f1d70df440df715e32863afec296b7f2e1d0/