Outerra forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Outerra Tech Demo download. Help with graphics driver issues

Author Topic: Shadowmap update  (Read 12839 times)

angrypig

  • Outerra Developer
  • Sr. Member
  • *****
  • Posts: 454
    • http://outerra.com
Shadowmap update
« on: November 20, 2010, 09:22:23 am »

When i saw our last screenshots with apache there were a lot of noise caused by self shadowing which made me little bit angry :). So I started to looking for a problem and I made some improvements to filtering algorithm. The new algorithm removes all undesirable noise which you can see on all previous screenshots. I also used Nvidia's hardware 2x2 PCF extension to raise number of random samples from 8 to 32 which makes transition between light and shadow more smooth. The final performance hit was little surprise for me because it was slightly faster than previous version with 8 samples which is probably caused by better cache utilization.

Detailed algorithm description will come later when we will have a little more time...

Finally here are a few screenshots with results.

new version of old screenshot :)

and one detailed shot

it also helps to remove the noise from curved surfaces


I almost forgot video :D
[youtube2]9_UyXHUd9gk[/youtube2]
Logged

halobungie

  • Jr. Member
  • *
  • Posts: 30
Shadowmap update
« Reply #1 on: November 20, 2010, 09:44:42 am »

Hello,
the Pictures are UNCREDIBLE GOOD - ONLY FANTASTIC!!!
Greetings,
halobungie
Logged

RaikoRaufoss

  • Blood may move the wheels of history, but only our cunning keeps the wheels oiled.
  • Sr. Member
  • ****
  • Posts: 374
    • http://www.sabaton.net/
Shadowmap update
« Reply #2 on: November 20, 2010, 09:53:38 am »

Great work on improving the image quality!
Logged
Far from the fame
Far away from the fame
But we still remember your name
Karel JanouĊĦek
We mourn the day that you died
So be our guide
CZECHOSLOVAKIA'S PRIDE!!!!!!

Abc94

  • Full Member
  • ***
  • Posts: 224
Shadowmap update
« Reply #3 on: November 20, 2010, 02:47:34 pm »

Haha it's getting harder and harder to tell if some of these images are real or not!

I especially like the 4th shot (the one of the top of the Cessna).  Was the screenshot taken from 'in-game' (such as how it would look if you were actually flying the Cessna) or did you have to do some extra rendering to get it to such a high quality?

(Crossing fingers hoping it's an in-game image)  :D
Logged
"It costs over $400 000 to play for 12 seconds."     Heavy Weapons Guy on Outerra demo.

angrypig

  • Outerra Developer
  • Sr. Member
  • *****
  • Posts: 454
    • http://outerra.com
Shadowmap update
« Reply #4 on: November 20, 2010, 03:21:23 pm »

Quote from: Abc94
I especially like the 4th shot (the one of the top of the Cessna).  Was the screenshot taken from 'in-game' (such as how it would look if you were actually flying the Cessna) or did you have to do some extra rendering to get it to such a high quality?

(Crossing fingers hoping it's an in-game image)  :D

Every picture and video that we are presenting is directly from game. We have no extra settings for screenshots or videos. Our philosophy is WYSIWYP... :)
Logged

Abc94

  • Full Member
  • ***
  • Posts: 224
Shadowmap update
« Reply #5 on: November 20, 2010, 03:46:14 pm »

I am guessing that is an acronym for What You See Is What You Play?  Well then I must say that Outerra has the best looking graphics (and not just terrain) of any game/simulator I have ever seen, and that's no joke!  :cool:

But what did you mean by "and one detailed shot" above the fourth image?

BTW I completely agree with WYSIWHP.  Too bad some developers don't.
Logged
"It costs over $400 000 to play for 12 seconds."     Heavy Weapons Guy on Outerra demo.

angrypig

  • Outerra Developer
  • Sr. Member
  • *****
  • Posts: 454
    • http://outerra.com
Shadowmap update
« Reply #6 on: November 20, 2010, 04:40:19 pm »

Quote from: Abc94
I am guessing that is an acronym for What You See Is What You Play?  Well then I must say that Outerra has the best looking graphics (and not just terrain) of any game/simulator I have ever seen, and that's no joke!  :cool:

Yes it means exactly "What You See Is What You Play".

Quote from: Abc94
But what did you mean by "and one detailed shot" above the fourth image?

That detailed shot means only closeup look on shadows casted by antennas.
Logged

C. Shawn Smith

  • Hero Member
  • *****
  • Posts: 712
    • C. Shawn Smith's Art Gallery & Portfolio
Shadowmap update
« Reply #7 on: November 20, 2010, 05:20:06 pm »

Quote from: Abc94
Haha it's getting harder and harder to tell if some of these images are real or not!
I agree!  Very nice images, and a lot better.  The video of the Apache shadows ... man, it was hard to tell it was computer generated :).  I usually don't quibble on shadow detail too much, since my computer system has never been able to render them that well anyway (even though I plan for 2-3 years of usage, I always seem to fall behind by a year), but even the ones a few were complaining about weren't bad at all.  I probably wouldn't have noticed if someone hadn't pointed it out.
Logged
What we think, we become -- Buddha
There is no spoon -- Neo, The Matrix
The Cosmos is all that is, or ever was, or ever will be. -- Carl Sagan
Outerra is all that is, or ever was, or ever will be. -- Me :)
- Yes, I'm still around ... just been busy with other projects ;)

ZeosPantera

  • ||>>-Z-<<||
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 2518
  • #1 Outerra Fan Boy
    • My Youtube
Shadowmap update
« Reply #8 on: November 20, 2010, 08:50:04 pm »

This thread has been approved for all audiences and it rated awesome.
Logged
"Fear accompanies the possibility of death, Calm shepherds its certainty" - General Ka Dargo

Michal

  • Jr. Member
  • *
  • Posts: 35
    • http://blog.blockhouse-c.com
Shadowmap update
« Reply #9 on: November 21, 2010, 08:19:36 am »

Wow, there is no gap between antenna and the shadow! Impressive :)

angrypig

  • Outerra Developer
  • Sr. Member
  • *****
  • Posts: 454
    • http://outerra.com
Shadowmap update
« Reply #10 on: November 21, 2010, 08:40:26 am »

Quote from: _michal
Wow, there is no gap between antenna and the shadow! Impressive :)

Good point. This algorithm doesn't need shadow map offset so there are no gaps. :)
Logged

Michal

  • Jr. Member
  • *
  • Posts: 35
    • http://blog.blockhouse-c.com
Shadowmap update
« Reply #11 on: November 21, 2010, 08:44:56 am »

Awesome. FSX self shadowing is terrible, there is almost 15 - 20cm offset, and no shadow dithering at all. New Flight video showed how low is the exterior shadow resolution. Selfshadowing in Outerra looks much better.

OGREMAN

  • Member
  • **
  • Posts: 62
Shadowmap update
« Reply #12 on: November 21, 2010, 07:41:35 pm »

OMG... I am wallowing in a pool of green drool ..... anticipation of this engine being adopted by a mainstream Combat flight sim developer is reducing me to tears of joy.  Shine on you crazy DIAMONDS! I love this..
Logged
`Twas brillig, and the slithy toves  Did gyre and gimble in the wabe:All mimsy were the borogoves,
  And the mome raths outgrabe.
\"Beware the Jabberwock, my son!  The jaws that bite, the claws that catch! Beware the Jubjub bird, and shun;  The frumious Bandersnatch!\"

ddenn

  • Sr. Member
  • ****
  • Posts: 374
Shadowmap update
« Reply #13 on: November 22, 2010, 03:22:12 am »

That's very impressive!

Is it possible to make shadows a little bit blue, after the sky color? It could make picture even a bit more realistic

Logged
i7 3930K 3.50 (3.80) Ghz, 32Gb RAM, GTX980 4 Gb VRAM, Windows 7 64-bit

About Outerra in Russian

angrypig

  • Outerra Developer
  • Sr. Member
  • *****
  • Posts: 454
    • http://outerra.com
Shadowmap update
« Reply #14 on: November 22, 2010, 03:30:38 am »

Quote from: ddenn
Is it possible to make shadows a little bit blue, after the sky color? It could make picture even a bit more realistic

They are already little bit bluish but that color is not taken from sky yet.
Logged