Lighting levels

[Odd Eye]

Is it true that you can't see the difference between a lighting level of say 144 and 152. Every time I do this I just can't see any difference, it looks like the same level of lighting. Is my sight failing me or is it really impossible to see any difference?

[boris]

IIRC the steps are multiples of 16, i.e. 16, 32, 48 etc. ZDoom (other ports, too?) changed it to smaller steps though.

[Ichor]

I think you can see a slight difference in GL ports like JDoom.

[TheDarkArchon]

Generally, OpenGL ports use per-unit brightness.

[Tango]

Odd Eye said:

Is my sight failing me or is it really impossible to see any difference?

No, even though you can't exactly tell, there is a difference, it's just that the lighting levels are so close together it's hard to tell.

[EarthQuake]

No one has mentioned yet that Doom uses a colormap and palette. 256 colors, and that's not enough to show very slight changes in light levels. Of course this doesn't apply to OpenGL ports, though.

[Fusion]

I was generally under the impression that doom lit levels at 16 unit intervals whereas certain ports such as zdoom, light levels at 8 units, thus greater falloffs and more dramatic lighting effects.