Heat haze effect during Sonic 3

[Former user]

Original [issue 105](https://code.google.com/p/genplus-gx/issues/detail?id=105) created by [e-mail] on 2010-07-17T10:08:17.000Z:

Play sonic 3 and reach the 3rd section of act 1. 3:48 in this video, this isn't my video btw. http://www.youtube.com/watch?v=yZLV-7R8GWY and you'll see during section of the game it has some wierd heat effect going on, it doesn't seem to happen on any other of the levels, I mentioned the problem on TehSkeen last year but I guess it was overlooked.

[Former user]

Comment # 1 originally posted by gora.patrick on 2010-07-17T10:14:51.000Z:

this heat effect is supposed to be. ;)

[Former user]

Comment # 2 originally posted by Icedus on 2010-07-17T10:16:08.000Z:

Almost positive that this happens on real hardware... the island just got set on fire, after all. It's an intentional effect.

[Former user]

Comment # 3 originally posted by [e-mail] on 2010-07-17T10:26:29.000Z:

:-( ok if you say it's on the real hardware too, imo I think it makes the game look awful like it's trying to fix two images together whilst wobbling about.

[Former user]

Comment # 4 originally posted by ekeeke31 on 2010-07-18T18:23:28.000Z:

Is this a joke ? Off course it's supposed to be like this and off course it only appears here since it's supposed to set the island on fire after this boss encountering. I'm not sure to understand why you would think it is a bug ? Or do you mean what you see in the emulator is not what happen on this video ?

It's just a transition effect like you can see in many other games at this time, maybe it's not very realistic but it's certainly no the ugliest graphic effect I've seen on the Mega Drive before.

[Former user]

Comment # 5 originally posted by [e-mail] on 2010-07-18T23:41:42.000Z:

No joke, having not played it on real hardware I can't comment but to me the effect seems like it isn't quite right like it isn't fully emulated properly and because of that it addsadurates it, If i'm wrong then i'm sorry for wasting your time.

[Former user]

Comment # 6 originally posted by ekeeke31 on 2010-07-19T07:07:38.000Z:

Looks right to me It's just a wall of fire going from the bottom to the top of the screen then back off, I don't see how it could have been differently done

[Former user]

Comment # 7 originally posted by [e-mail] on 2010-07-20T00:51:37.000Z:

I'm not talking about that, that happens during the loading of that level before it resumes gameplay. I'm talking about the shuddering effect where it looks like tearing of the images througout that level.

[Former user]

Comment # 8 originally posted by ekeeke31 on 2010-07-20T09:08:36.000Z:

Ok, I didn't get that.

Well, the island has been set on fire, the wavy effect is supposed to recreate the hot atmosphere, seems pretty obvious to me and not so bad for a game of this generation. Remember that programmers at that time didn't have much solutions to do realistic graphic effects, hardware were always limited in some ways and the best you could generally do was playing with scrolling & palette values line by line.