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On 22/06/2015 05:07 PM, clipka wrote:
> PBR avoids old-school shading models and rendering algorithms that were
> designed to achieve a particular effect, and instead uses mechanisms
> that were designed to model the underlying physical processes.
>
> POV-Ray has been heavily geared towards PBR in recent times, and UberPOV
> should by now be a viable PBR tool, provided you stick to the following
> rules:
I don't know, man. Like, in the beginning, everybody did scanline
rendering, which is very fast and just barely capable of crudely
approximating enough effects to be almost believable.
And then people started using ray-tracers, which "model the real
physics" to achieve far more realistic results. They work by directly
tracing individual rays of light, rather than trying to fake it somehow
with clever short-cuts. Things like physically correct specular
reflection on curved surfaces are trivial for a ray tracer, but
notoriously difficult with scanline rendering.
...except that classical ray-tracers are *still* using short-cuts. Like
point-lights. These do not exist in the real world, but look just about
convincing enough that it can look OK. Or "ambient light", which is a
crude approximation to global diffuse inter-reflection...
So people start adding hacks like photon maps and pre-computed radiosity
to try to work around the defects.
And now, people just run unbiased renderers on the GPU which *directly*
simulate all manner of effects like caustics and diffuse reflection
properly, by simply computing *all* light paths by brute force...
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On 22/06/2015 19:28, Orchid Win7 v1 wrote:
> And now, people just run unbiased renderers on the GPU which *directly*
> simulate all manner of effects like caustics and diffuse reflection
> properly, by simply computing *all* light paths by brute force...
My mind is blown by the graphics in Elite Dangerous Sometimes I just
look at it and stare into space. @ 120 fps. :-)
--
Regards
Stephen
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On 22/06/2015 08:30 PM, Stephen wrote:
> On 22/06/2015 19:28, Orchid Win7 v1 wrote:
>> And now, people just run unbiased renderers on the GPU which *directly*
>> simulate all manner of effects like caustics and diffuse reflection
>> properly, by simply computing *all* light paths by brute force...
>
> My mind is blown by the graphics in Elite Dangerous Sometimes I just
> look at it and stare into space. @ 120 fps. :-)
Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY NOTHINGNESS??
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On 22/06/2015 21:26, Orchid Win7 v1 wrote:
> On 22/06/2015 08:30 PM, Stephen wrote:
>> On 22/06/2015 19:28, Orchid Win7 v1 wrote:
>>> And now, people just run unbiased renderers on the GPU which *directly*
>>> simulate all manner of effects like caustics and diffuse reflection
>>> properly, by simply computing *all* light paths by brute force...
>>
>> My mind is blown by the graphics in Elite Dangerous Sometimes I just
>> look at it and stare into space. @ 120 fps. :-)
>
> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY NOTHINGNESS??
Yes, until you come to the busy bits.
Here's some empty bits
http://imgur.com/a/kmdku
--
Regards
Stephen
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Am 22.06.2015 um 22:26 schrieb Orchid Win7 v1:
>> My mind is blown by the graphics in Elite Dangerous Sometimes I just
>> look at it and stare into space. @ 120 fps. :-)
>
> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY NOTHINGNESS??
As with many things you haven't actually tried out, once again you don't
have a clue ;)
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Am 22.06.2015 um 22:26 schrieb Orchid Win7 v1:
>> My mind is blown by the graphics in Elite Dangerous Sometimes I just
>> look at it and stare into space. @ 120 fps. :-)
>
> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY NOTHINGNESS??
(BTW, you don't even have the magnitude right; ED is about 30 times
larger than that :P)
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On 23/06/2015 03:41 AM, clipka wrote:
> Am 22.06.2015 um 22:26 schrieb Orchid Win7 v1:
>> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY
>> NOTHINGNESS??
>
> As with many things you haven't actually tried out, once again you don't
> have a clue ;)
Well, as you say, I haven't actually seen the game. But I was under the
impression that space is black. Except for a few infinitesimal points of
white light. Doesn't sound like an amazing visual experience. ;-)
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On 23/06/2015 03:52 AM, clipka wrote:
> Am 22.06.2015 um 22:26 schrieb Orchid Win7 v1:
>> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY
>> NOTHINGNESS??
>
> (BTW, you don't even have the magnitude right; ED is about 30 times
> larger than that :P)
Oh, like I had ANY HOPE of guessing that right! :-P
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On 22-6-2015 18:07, clipka wrote:
> POV-Ray has been heavily geared towards PBR in recent times, and UberPOV
> should by now be a viable PBR tool, provided you stick to the following
> rules:
Now, that is a comprehensive tutorial about do's and dont's. Thanks
indeed Christoph.
No more sad examples of reflective spheres on chequered planes :-)
--
Thomas
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On 23/06/2015 08:03, Orchid Win7 v1 wrote:
> On 23/06/2015 03:41 AM, clipka wrote:
>> Am 22.06.2015 um 22:26 schrieb Orchid Win7 v1:
>>> Uh... Isn't Elite Dangerous just a thousand parsecs of EMPTY
>>> NOTHINGNESS??
>>
>> As with many things you haven't actually tried out, once again you don't
>> have a clue ;)
>
> Well, as you say, I haven't actually seen the game. But I was under the
> impression that space is black. Except for a few infinitesimal points of
> white light. Doesn't sound like an amazing visual experience. ;-)
The bits where the black has things in it. Is not so black. ;-)
The level of detail at space stations makes me jealous and if I could
make one of the close ups of the stars, in povray. I would make my
fortune if it could be rendered 60+ fps.
I am envious of clipka who has an oculus rift. The view must be
spectacular, even at the lower resolution.
--
Regards
Stephen
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