Apolyton Civilization Forums > Miscellaneous > Off-Topic > The new thing in computer graphics: HDR lighting

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Apolyton Civilization Forums > Miscellaneous > Off-Topic > The new thing in computer graphics: HDR lighting

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nostromo

Prince

Montréal, Québec
Mar 2002
time: 00:37

22-06-2005 05:21

The new thing in computer graphics: HDR lighting

Support Apolyton, buy GURPS/ Alpha Centauri

Fun with HDR lighting. Wonder if next gen consoles will be able to render this **** in real time...

Zopperoni

Emperor

Dec 2000
time: 06:37

22-06-2005 05:22

Support Apolyton, buy Civilization: The Boardgame

... and what exactly is HDR lighting?

Pekka

Chieftain

em seu burro dos pais!
Feb 2002
time: 07:37

22-06-2005 05:23

Support Apolyton, buy Galactic Civilizations: Deluxe Edition

DAMNN!!!!!

Photorealistic games, here we comeeeeeeeeeeeeee!!!

Kuciwalker

Emperor

of Schmooism
Feb 2001
time: 00:37

22-06-2005 05:25

Full PM-box? Change here!

I refuse to believe that's real*

*meaning computer generated

nostromo

Prince

Montréal, Québec
Mar 2002
time: 00:37

22-06-2005 05:32

Tired of ads?

For more info about High dynamic range imagery:
http://www.bit-tech.net/gaming/2005...overview/1.html

HL2: the lost coast will support it. But you'll need a lot or ram. And when I say a lot of ram, I mean 2 GB of ram...

Asher

King

Calgary, Alberta
Nov 1999
time: 22:37

22-06-2005 05:34

Support Apolyton, buy Civilization III: Complete

Both the Xbox 360's chip and PS3's chip support HDR.

Asher

King

Calgary, Alberta
Nov 1999
time: 22:37

22-06-2005 05:43

Increase Your PM Length

Screenshots of "Alan Wake", a game from the creators of Max Payne, for Xbox 360:

nostromo

Prince

Montréal, Québec
Mar 2002
time: 00:37

22-06-2005 05:50

Get a bigger avatar today!

Looks great, and the story sure is intriguing. But I bet it'll be even shorter than Max Payne 2. Max Payne 2 was like 8 hours long. So this one will be 4 to 5 hours long...

Btw, you can have HDR on graphic cards that support Shader Model 2.0:

quote:
HDR is the latest feature in the quest for greater rendering fidelity: Crytek have already added it to Far Cry as part of their 1.3 Patch and it is integral to Epic's Unreal Engine 3.0. Valve recently revealed that they are working on a special HDR showcase for Half Life 2 titled Lost Coast. Whilst Far Cry only implemented HDR via Shader Model 3.0, hence only working on Nvidia's latest-generation cards, Lost Coast will implement it via Shader Model 2.0, allowing for it to work on ATI's current generation.

Asher

King

Calgary, Alberta
Nov 1999
time: 22:37

22-06-2005 06:11

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The basic thing is support for 96-bit/128-bit floating-point color internally.

24-bit/32-bit color doesn't support the "dynamic range" needed for high-dynamic range lighting internally.

Q Cubed

Prince

t3h y3ll0w p3ril
Apr 1999
time: 23:37

22-06-2005 07:25

#10

Inflate your Upload Space

iirc, those HL2 images above were composited, not rendered real time.

As in, the backgrounds are mere photographs, whereas the HL2 models do use the HDR. Only thing is, I remember reading about this either in MAKE:Blog or /. a month or two ago.

Commy

King

St. Louis, MO, USA
Mar 2004
time: 05:37

22-06-2005 07:29

#11

Help yourself to an AD-FREE life

What is floating-point, I have heard about this a lot but never could quite figure it out myself (google isn't as reliable as I thought)...

nostromo

Prince

Montréal, Québec
Mar 2002
time: 00:37

22-06-2005 07:40

#12

Browse Apolyton AD-FREE

quote:
Originally posted by Q Cubed
iirc, those HL2 images above were composited, not rendered real time.

Yep

quote:
As in, the backgrounds are mere photographs, whereas the HL2 models do use the HDR.

Its pretty obvious, if you ask me.

quote:
Only thing is, I remember reading about this either in MAKE:Blog or /. a month or two ago.

OMFG !1!!!111!!1 you're so 1337!

Asher

King

Calgary, Alberta
Nov 1999
time: 22:37

22-06-2005 08:34

#13

Remove this text

quote:
Originally posted by Commy
What is floating-point, I have heard about this a lot but never could quite figure it out myself (google isn't as reliable as I thought)...

decimal numbers where the decimal can move around

ie: 201.391 and 24.1921 are floating point numbers.

It's in contrast to fixed point, where you have a fixed number of numbers before and faster the decimals.

This is again in constrast to integers, which are whole numbers.

Modern computers use integers and floating-point.

Last edited by Asher on 22-06-2005 at 08:47

Q Cubed

Prince

t3h y3ll0w p3ril
Apr 1999
time: 23:37

22-06-2005 08:36

#14

Tired of ads?

nostromo, no need to be snarky. you just didn't clarify what part was HDR with your original post, merely presented the composite photographs with no information.

the reason i included that next part about MAKE:blog and what not was to give people pointers on where to search for more information about the compositing.