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<div class="moz-cite-prefix">Hi All,<br>
<br>
Definitely good advices regarding GI settings. For me one of the
most important ones was GI brightnes which introduces some nice
dynamic in scene lightning.<br>
Like you guys I spent hundreds of hours tweaking the setttings. I
use (used to?) different curves for interior and exterior
lightning.<br>
Have a look at the attachments. BTW, sometimes I left some noise
by disabling blurring at all as in my opinion sometimes it just
kills GI in Realsoft.<br>
It's better I think to adjust ray counts for a while and decide
what level of rendering time is acceptable for us while working
with the object.<br>
<br>
Best Regards,<br>
Artur<br>
<br>
<br>
On 2017-05-18 00:51, Mark Heuymans wrote:<br>
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<p>Hi Robert,</p>
<p>All good advice, nice to see the list is still alive :)</p>
<p>I saw that you're using Global Illumination. A very difficult
and complicated feature in RS3d !<br>
The infamous Garry and me did some heavy testing, trying to
optimize GI settings in RS... must be at least a decade ago. <br>
</p>
<p><br>
But computers in 2017 are dream machines compared to the noisy
heavy monsters from those days. RS runs fine on a cheap
multi-core 64-bit machine with 16 gigs of ram, so on such a
machine we can crank up these settings:<br>
</p>
<p>- increase Ray Count in the GI material: makes use of all the
CPU cores, including hyperthreaded. The higher the better,
unfortunately it's maxed out at 100 by a slider (v6)<br>
- decrease Blur Level and Blur Iterations in Post Image Effects.
But beware: if it's too low, noise is introduced.<br>
- perhaps modify things like GI_blur_reflected,
GI_brightness_control, blurwidth_control<br>
</p>
<p>Or export the scene as .obj and render with other software.<br>
</p>
<p>Good luck!<br>
Mark H</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">Op 16-5-2017 om 19:29 schreef Robert
den Broeder:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Many
thanks Jan! Will try! </span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB">And of course I will post updates of my image
to show my progress.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB">Initially this started as a test if I could
make the pen… now it should become more interesting than
that ;- )<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB">Robert<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Van:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
User-list [<a class="moz-txt-link-freetext"
href="mailto:user-list-bounces@realsoft.com"
moz-do-not-send="true">mailto:user-list-bounces@realsoft.com</a>]
<b>Namens </b>Jan Schmitz<br>
<b>Verzonden:</b> dinsdag 16 mei 2017 18:22<br>
<b>Aan:</b> <a class="moz-txt-link-abbreviated"
href="mailto:user-list@realsoft.com"
moz-do-not-send="true">user-list@realsoft.com</a><br>
<b>Onderwerp:</b> Re: [User-list] i have a pen..<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hi
Robert,<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">in
addition to Lees excellent mail, I'd like to give
some further suggestions. I quickly pulled the
image into photoshop and sketched the things that
can be improved, to gain a more realistic and more
appealing render. (Download the image and toggle
between the to versions, to see the adjustments
better).<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">1.
Clean reflections: In product photography you
usually don't want to see the whole room in the
reflection, so you set up a bunch of grey to white
gradients, that appear in the reflections. This
helps us to instantly recognize the material as a
chrome material.<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">2. The
cap at the end of the pen doesn't seem to have a
shader, it renders constant black. You'll need
something there, that resembles plastic or rubber and
gives some smooth reflections. (As Lee already said)<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">3. The
camera is very telephoto, so you'd expect some depth of
field.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">4. The
wood texture needs a lot more contrast.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">I hope
this helps, the pen looks really nice!<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Kind regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Jan<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
<div>
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<div>
<div>
<p class="MsoNormal"><span style="font-size:7.5pt">Jan
Schmitz<br>
Meyerheimstraße 1<br>
10439 Berlin<br>
<br>
<a moz-do-not-send="true"
href="tel:+49%201514%201843104"
target="_blank">+49 151 418 431 04</a></span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On 16 May 2017 at 17:44, Robert den
Broeder <<a moz-do-not-send="true"
href="mailto:r.den.broeder@chello.nl" target="_blank">r.den.broeder@chello.nl</a>>
wrote:<o:p></o:p></p>
<p class="MsoNormal">Thank you for your time and comments
Lee!! Much appreciated. I'll try to work with your
suggestions and see how it turns out.<br>
<br>
Best regards,<br>
Robert<br>
<br>
Verstuurd vanaf mijn iPhone<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><br>
> Op 16 mei 2017 om 17:30 heeft leee <<a
moz-do-not-send="true"
href="mailto:leee@spatial.plus.com">leee@spatial.plus.com</a>>
het volgende geschreven:<br>
><br>
>> On Sunday 14 May 2017 16:29:37 Robert den
Broeder wrote:<br>
>> Hi all,<br>
>><br>
>> Today I created a pen in RS3D and did some
GI rendering tests. What can I<br>
>> do to improve image quality?<br>
>><br>
>> Regards,<br>
>><br>
>> Robert<br>
><br>
> I think it's fair to say that, in 3D, if you're
going to make something<br>
> reflective then you should make sure there's
something to be reflected by<br>
> it.<br>
><br>
> In your image, the tip of the pen appears to be
reflective and the lower<br>
> half is reflecting the desk upon which it sits
but the upper half just<br>
> looks almost flat-black. The clip also suffers
from the same problem - it<br>
> looks too 'flat'.<br>
><br>
> Assuming that you want to portray the pen on a
desktop, I'd place the entire<br>
> scene within a hollow analytical cube and
parallel map some stock office<br>
> wall photographs to each of the 'walls'.
Depending on the angles, I might<br>
> also fake an office light on the ceiling.<br>
><br>
> The black cap at the clip end of the pen, which
looks as though it's not<br>
> intended to be reflective, doesn't show any
detail to 'fill out' its<br>
> shape - you can't separate the cylinder wall
from the endcap and you can<br>
> only tell that it's a short cylinder from its
profile/silhouette - playing<br>
> around with its specular properties and adding
a small amount of reflection<br>
> should enable you to get some differentiation
between the cylinder walls<br>
> and the endcap. I can see a narrow strip of
specular reflection along the<br>
> barrel and clip extension, and that looks good,
but I'd extend that to the<br>
> endcap and at the same time make it a little
more diffuse, so that the<br>
> specular strip is wider i.e. spreads further
around the circumference and<br>
> covers a greater arc than on the barrel. Is
the endcap slightly domed? I<br>
> can't tell because of the lack of depth but if
it isn't then I'd make it<br>
> so.<br>
><br>
> Last thing I'll mention is the tiling of the
desktop material - this<br>
> wouldn't be a problem if you were going to crop
the image - but this is<br>
> 3D - just don't render what you don't need.<br>
><br>
> Yes, I'm being nit-picky here, but making
something photo-real is all about<br>
> the details.<br>
><br>
> LeeE<br>
><br>
> _______________________________________________<br>
> User-list mailing list<br>
> <a moz-do-not-send="true"
href="mailto:User-list@realsoft.com">User-list@realsoft.com</a><br>
> <a moz-do-not-send="true"
href="http://realsoft.com/mailman/listinfo/user-list_realsoft.com"
target="_blank">http://realsoft.com/mailman/listinfo/user-list_realsoft.com</a><br>
<br>
<br>
_______________________________________________<br>
User-list mailing list<br>
<a moz-do-not-send="true"
href="mailto:User-list@realsoft.com">User-list@realsoft.com</a><br>
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<a class="moz-txt-link-freetext" href="http://realsoft.com/mailman/listinfo/user-list_realsoft.com">http://realsoft.com/mailman/listinfo/user-list_realsoft.com</a>
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