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Hi all,
Well, I went a little crazy playing with the Ivy Generator a few days ago and
ended up with 70 different ivy meshes grown on this (rather simple) Sponza
Atrium mesh. All converted to Mesh2 via PoseRay.
Render examples follow...
-Rob
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Attachments:
Download 'ivy_on_sponza.jpg' (418 KB)
Preview of image 'ivy_on_sponza.jpg'
![ivy_on_sponza.jpg](/povray.binaries.images/attachment/%3Cweb.48fbccf96e30aa68bd1b3ad10%40news.povray.org%3E/ivy_on_sponza.jpg?ttop=443866&toff=3000&preview=1)
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Using the ambient occlusion method that I was obsessing on all week I first
rendered a lightless AO pass; then I used MegaPov to render a full-color HDRI
pass with one main light_source. Tons of focal blur samples. 49 hours for both
passes (ouch).
Finally I rendered a composite of the HDRI and AO renders. I was able to easily
tweak the balance of light and shadow during the composite render by varying a
single parameter between 0 and 1. I found this to much more artist-friendly than
re-rendering the whole thing again.
Here are some small sample tests, full-size render follows...
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Attachments:
Download 'sponza_steps_600.jpg' (503 KB)
Preview of image 'sponza_steps_600.jpg'
![sponza_steps_600.jpg](/povray.binaries.images/attachment/%3Cweb.48fbceefb212fa4bd1b3ad10%40news.povray.org%3E/sponza_steps_600.jpg?ttop=443866&toff=3000&preview=1)
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The previous 49 hours for the AO and HDRI passes don't make this realtime
raytracing by any stretch, but I really like being able to vary the blend of
AO-shadow and full-color until I'm satisified with it.
Here's the full-size composite render, which took about 10 seconds.
Cheers,
-Rob
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Attachments:
Download 'rwm_sponza_atrium3.jpg' (683 KB)
Preview of image 'rwm_sponza_atrium3.jpg'
![rwm_sponza_atrium3.jpg](/povray.binaries.images/attachment/%3Cweb.48fbd297b212fa4bd1b3ad10%40news.povray.org%3E/rwm_sponza_atrium3.jpg?ttop=443866&toff=3000&preview=1)
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"Robert McGregor" <rob### [at] mcgregorfineart com> schreef in bericht
news:web.48fbd297b212fa4bd1b3ad10@news.povray.org...
> The previous 49 hours for the AO and HDRI passes don't make this realtime
> raytracing by any stretch, but I really like being able to vary the blend
> of
> AO-shadow and full-color until I'm satisified with it.
>
> Here's the full-size composite render, which took about 10 seconds.
>
> Cheers,
> -Rob
>
>
The result has a very strong 3D feeling, mainly due I suppose to the
blurring. Really impressive.
I am not a big fan of focal blur in general. I wonder how the scene would
look without it?
Thomas
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"Thomas de Groot" <t.d### [at] inter nlDOTnet> wrote:
> "Robert McGregor" <rob### [at] mcgregorfineart com> schreef in bericht
> news:web.48fbd297b212fa4bd1b3ad10@news.povray.org...
> > The previous 49 hours for the AO and HDRI passes don't make this realtime
> > raytracing by any stretch, but I really like being able to vary the blend
> > of
> > AO-shadow and full-color until I'm satisified with it.
> >
> > Here's the full-size composite render, which took about 10 seconds.
> >
> > Cheers,
> > -Rob
>
> The result has a very strong 3D feeling, mainly due I suppose to the
> blurring. Really impressive.
> I am not a big fan of focal blur in general. I wonder how the scene would
> look without it?
The image looks stunning, but the exaggerated focal blur gives the impression
that we are looking at a miniature building, maybe 30cm high... if anything,
only the ivy in the extreme foreground (right-hand side) should be blurred.
Of course, that wasn't the point of your render, and I agree, being able to
tweak the light level in a quick apres-AO pass is very powerful. Great stuff!
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Robert McGregor wrote:
> Here's the full-size composite render, which took about 10 seconds.
This is one of the best uses of focal blur I have seen in a POV-Ray image.
Don't listen to those focal blur haters. It rules!
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Warp escreveu:
> Robert McGregor wrote:
>> Here's the full-size composite render, which took about 10 seconds.
>
> This is one of the best uses of focal blur I have seen in a POV-Ray image.
>
> Don't listen to those focal blur haters. It rules!
It rocks! :)
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Didn't wrote anything for month'. Part of because I was busy moving from
Germany to Denmark.
But this image is stunning! It reminds me of the LOTR-Films (which I like
:-)) - it's even better!
Thanks,
Marc-Hendrik
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Warp <war### [at] tag povray org> wrote:
> Robert McGregor wrote:
> > Here's the full-size composite render, which took about 10 seconds.
>
> This is one of the best uses of focal blur I have seen in a POV-Ray image.
>
> Don't listen to those focal blur haters. It rules!
I agree.
Excellent contrast. Cold.
I suggest a sky dark, purplish.
It would be interesting to also try the "Luminous Bloom" by Samuel Benge.
There are several minutes that I look the image!
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"Warp" <war### [at] tag povray org> schreef in bericht
news:48fcb103@news.povray.org...
>
> Don't listen to those focal blur haters. It rules!
Amen... ;-)
Thomas
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