Artifacts?

Discussion related to the exporter plugin for SketchUp.

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Artifacts?

Hi,

Am new to this forum, i have followed the development of this plugin since some of the initial releases, having recently revisited and updated the sketchup exporter, when i render i am now getting artefacts appearing on the re
nder almost as white holes, as they have a black outline, is this something that will resolve itself during rendering or is it something wrong in my settings?

Great work with the plugin, looking forward to getting a material editor (back) in the works!

Regards

Oli
olic87

Posts: 3
Joined: Wed Mar 17, 2010 8:37 am

Re: Artifacts?

You might want to try setting the sampler to metropolis and the integrator to bidirectional.

Abel

Posts: 1412
Joined: Sat Oct 20, 2007 8:13 am
Location: Helsinki, Finland

Re: Artifacts?

Regards

Oli
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olic87

Posts: 3
Joined: Wed Mar 17, 2010 8:37 am

Re: Artifacts?

that is looking really good, especially, because there is no material editor yet!
lfrisken

Posts: 129
Joined: Fri Apr 24, 2009 5:46 am

Re: Artifacts?

When I render my szene I got some artifacts similar to the once from "olic87". I tried to change the settings as "Abel" mentioned but without success (OK, perhaps I got less marks). What can I do more? May it be a problem that I have (with the unfinished SU2LUX-Exporter) no possibility to change the material-settings?

Ups, I almost forgot this: I love Luxrender and the Exporter and I hope the developement will continue.

Regards, Kurt
Attachments
OS: Windows7, Luxrender V7.0, SU2LUX (Mon, 05 Jul 2010; rev 79)

kurt

Posts: 5
Joined: Mon Oct 25, 2010 9:08 am
Location: Thun, Switzerland

Re: Artifacts?

kurt wrote:I tried to change the settings as "Abel" mentioned but without success (OK, perhaps I got less marks). What can I do more?

Hi kurt,
at first glance it seems to me that nothing changed in your settings wrt sampler and integrator.
Could you please look into your .lxs file to see what values have been exported (or post it here)?

Try to remember what your actions were: did you close and then open settings editor after the changes and before exporting?

Mimmo
Happy rendering
Cosimo Briganti aka Mimmo Briganti aka mImhotep

mimhotep

Posts: 61
Joined: Wed Nov 25, 2009 12:20 pm
Location: Manduria (TA) - Italy

Re: Artifacts?

Hi Mimmo
Your right. The setting are wrong:
Code: Select all
Sampler "lowdiscrepancy" "integer pixelsamples" [4] "string pixelsampler" ["vegas"]      SurfaceIntegrator "bidirectional" "integer eyedepth" [8] "integer lightdepth" [8] "float eyerrthreshold" [0.0] "float lightrrthreshold" [0.0]

How can I store the settings? May I do it directly in the .xls-File?

Kurt
OS: Windows7, Luxrender V7.0, SU2LUX (Mon, 05 Jul 2010; rev 79)

kurt

Posts: 5
Joined: Mon Oct 25, 2010 9:08 am
Location: Thun, Switzerland

Re: Artifacts?

kurt wrote:How can I store the settings?

Hi Kurt,
this behaviours is related to the presets management, as far as I can see.
At the moment, to save and use your settings you should:
• Set the right values for the parameters you need in the settings editor;
• Create a new customized preset with the "New" button on top of the settings editor. I'll call it my_preset, as an example
If you then need to modify some other settings, change to relative values and then you have to press again the "New" button and type the name of your current preset (i.e. my_preset), in order to overwrite it, or a new one to create a different set of values.

I know, the process is 'a bit' tricky; it needs to be revised.

Regards,
Mimmo
Happy rendering
Cosimo Briganti aka Mimmo Briganti aka mImhotep

mimhotep

Posts: 61
Joined: Wed Nov 25, 2009 12:20 pm
Location: Manduria (TA) - Italy

Re: Artifacts?

Hi all,
I've just updated the repository with a fix to solve the issue discussed in previous posts.

Now settings should be consistent with the changes done in the editor.

Regards,
Mimmo
Happy rendering
Cosimo Briganti aka Mimmo Briganti aka mImhotep

mimhotep

Posts: 61
Joined: Wed Nov 25, 2009 12:20 pm
Location: Manduria (TA) - Italy

Re: Artifacts?

Hi Mimmo

Thanks for your work. Unfortunately I was not able to reset the values in the .xls file. Neither directly (with the updated exporter) nor in the way you have written (tricky way). I finally set the values manually like this:

Code: Select all
Sampler "metropolis" "float largemutationprob" [0.4] "bool usevariance" ["false"]      SurfaceIntegrator "bidirectional" "integer eyedepth" [8] "integer lightdepth" [8] "float eyerrthreshold" [0.0] "float lightrrthreshold" [0.0]

I hope i got them right. The result was even worse.
Kurt
Attachments
OS: Windows7, Luxrender V7.0, SU2LUX (Mon, 05 Jul 2010; rev 79)

kurt

Posts: 5
Joined: Mon Oct 25, 2010 9:08 am
Location: Thun, Switzerland

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