Journal #8498 by Dr. Orange

Jessie

Commented 9 years ago2015-01-25 11:10:39 UTC Comment #67569

So you're taking your mspaint drawing as more valid than a detailed demonstration including screenshots and a test map?
It's not even a very good drawing.

Tetsu0

Commented 9 years ago2015-01-25 13:07:43 UTC Comment #67568

Pretty sure it just changes the brightness of the textures based on rays traced from light sources. The lightmap grid holds light information every 16units i think by default.
Models get their light data based on their origin and player gets light data from whatever floor surface you're standing on.

I think...

rufee

Commented 9 years ago2015-01-25 13:46:22 UTC Comment #67585

Tet is right, lighting in gs is simple.
Its just precomputed radiosity (rad).
It is possible to bake lighting, the only problem is that the player will be fullbright or black.

Oskar Potatis

Commented 9 years ago2015-01-25 14:35:09 UTC Comment #67584

How Can Light Data Be Real If Our Eyes Aren't Real

Suparsonik

Commented 9 years ago2015-01-27 21:30:29 UTC Comment #67586

^^^ I love this comment.

Jessie

Commented 9 years ago2015-01-28 04:53:09 UTC Comment #67570

Incidentally, without light, we would be able to see. The world would be fullbright.
Or so my understanding goes.

Alabastor_Twob

Commented 9 years ago2015-01-28 09:40:43 UTC Comment #67577

Imagine trying to sleep if that were the case. Even the insides of your eyelids would be fullbright.

Jessie

Commented 9 years ago2015-01-29 00:57:24 UTC Comment #67571

Supposedly we'd evolve with that in mind. Unless someone recompiled with a leak.

Alabastor_Twob

Commented 9 years ago2015-01-29 01:44:56 UTC Comment #67578

That's probably not unlikely to happen, with the skybox being spherical. That's some risky geometry to be sealing us off from the void.

Jessie

Commented 9 years ago2015-01-29 01:49:13 UTC Comment #67572

Maybe, but how often is someone going to need to change that? I mean, even for space travel and all that, I imagine they'd just use trigger_changelevels. Might be more likely that some bugger sticks an entity out there.

Alabastor_Twob

Commented 9 years ago2015-01-29 15:47:03 UTC Comment #67579

And that's why we should ban satellites with lights on them.

Jessie

Commented 9 years ago2015-01-30 11:19:56 UTC Comment #67573

Wait, how can the universe have moving lights?

Alabastor_Twob

Commented 9 years ago2015-01-30 14:30:28 UTC Comment #67580

Many many slight variations of the same map and a very well refined level change system.

Jessie

Commented 9 years ago2015-01-31 03:18:40 UTC Comment #67574

Now explain to me who really believes someone made THAT mod in seven days.

Alabastor_Twob

Commented 9 years ago2015-02-01 06:05:43 UTC Comment #67581

Unless...
Maybe it was created by atom?

Jessie

Commented 9 years ago2015-02-01 07:13:53 UTC Comment #67575

Hmmm... He hasn't submitted any maps... Who knows what he's capable of?

Alabastor_Twob

Commented 9 years ago2015-02-01 08:01:50 UTC Comment #67582

He's submitted maps for his tutorials though.

Jessie

Commented 9 years ago2015-02-01 08:06:13 UTC Comment #67576

And are any of those tutorials about creating universes?

Alabastor_Twob

Commented 9 years ago2015-02-01 08:41:14 UTC Comment #67583

Figuratively, yes. ;P

Xylem

Commented 9 years ago2015-02-16 04:39:10 UTC Comment #67587

It's based on the Quake engine, which is heavily documented. If you do a few minutes of research you'll find your base answer. Valve pretty much added Radiosity lighting to the engine, which is why it looks so pretty and colorful. So yes, many many MANY people know how lighting works in Half-Life.

Edit: Actually the lighting apparently comes directly from Quake II, so again, highly documented and the code is open.

Journal #8498

20 Comments