Attenuated Lights not working properly

[Major Cooke]

Tested with this commit using OpenGL + Hardware Accelerated, attenuated lights aren't affecting map geometry anymore, but sprites are still lit up fine.

Toss this code into DoomPlayer's class.

Code: Select all

	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		A_AttachLight("dummy", DynamicLight.PulseLight, Color(255, 255, 255, 255), 128, 192, 
						DynamicLight.LF_ATTENUATE, (0, 32, 0), 1);
	}

[Graf Zahl]

Attenuated lights work fine - all the internal definitions are attenuated after all, so it must be related to your specific setup. Also, please post a runnable example. Hacking internal classes is not the way to demonstrate an issue.

[Nash]

Works fine for me too. Actor-generated lights, GLDEFS-defined lights, ZScript-spawned lights; they're all working (yes, attenuated).

[Major Cooke]

Quite a vexing problem this is. I cleaned my entire GZDoom build out.

I tested it with a fresh, brand new INI, and it still doesn't light terrain. It lights up sprites but not the map terrain.

Code: Select all

Class LightTest : Actor
{
	Default
	{
		+NOINTERACTION
		+NOBLOCKMAP
	}
	
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		A_AttachLight("dummy", DynamicLight.PulseLight, Color(255, 255, 255, 255), 128, 192, 
				DynamicLight.LF_ATTENUATE, (0, 32, 0), 1);
	}
	
	States
	{
	Spawn:
		TNT1 A -1;
		Stop;
	}
}

Again, fresh INI, but when summoning this, the light doesn't even work on sprites. All options are at default.

I'll try it again and report back if it succeeds or not.

[Major Cooke]

It didn't fix my issue unfortunately. Fresh INI, completely cleaned out GZDoom's compilation spick and span...

I'm running with RelWithDebInfo, x64 bit. Will try with Release mode and see if that changes anything...

[Rachael]

This sounds like a driver issue. First thing - whatever backend you are using, change it and use a different one and test it. Test Softpoly as a last resort.

[Major Cooke]

This sounds like a driver issue. First thing - whatever backend you are using, change it and use a different one and test it. Test Softpoly as a last resort.

It works in everything except OpenGL (regular, not ES).

And that's strange because when I went back to a prior build, it worked then and I haven't changed my drivers yet.

[Nash]

As Graf has said, post runnable examples. Who knows, the problem may be from the map wad.

[Major Cooke]

I did already. And I tried it with a variety of maps just to be certain. But for now I'll update my drivers.

Code: Select all

Class LightTest : Actor
{
	Default
	{
		+NOINTERACTION
		+NOBLOCKMAP
	}
	
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		A_AttachLight("dummy", DynamicLight.PulseLight, Color(255, 255, 255, 255), 128, 192, 
				DynamicLight.LF_ATTENUATE, (0, 32, 0), 1);
	}
	
	States
	{
	Spawn:
		TNT1 A -1;
		Stop;
	}
}

EDIT: One more note: the commit I was on before I updated to today's latest was this one. It worked then.

[Major Cooke]

Nothing changed unfortunately.

[Rachael]

What is the GPU? And what are the specific drivers?

Also - try typing this and recompiling:

Code: Select all

git revert 679518f8e

[Rachael]

So the problem was found to be that specific commit, it has been reverted for now.

[Major Cooke]

That did the trick. Thanks!