SkIndigo 1.1.16

Pibuz · Post by **Pibuz** » Sat Feb 14, 2009 9:50 pm

ehm....

I thank you very very much CTZn for your explainations and tips, I really appreciate, but...
I barely have an idea of what you are talking about..

You know, I'm a poor simple user of Indigo/Skindigo and I'm almost quite ignorant of what stands behind the façade..

I think I get you when you say that fireflies concerns a single pixel, and that colored dots are bigger instead. I have an idea of what you're talking about, i think, and happened when I checked aperture diffraction during the rendering phase: coloured shiny and blurry dots everywhere. Since then, I never turned on aperture diffraction during rendering any more. That was my solution

About the SPLAT filter, in SkIndigo it is sort of a hidden parameter (which we can access through a "view xml" button, correct me if I'm wrong whaat). So you suggest me to change from MR_cubic to MN_c, is that right? I'm gonna try that. Thank you!

Last thing: I cannot recall any day I played with a supersampling parameter. Help whaat!

Thank you a lot CTZn by the way. I appreciate your efforts to make a noob understand indigo more deeply

CTZn · Post by **CTZn** » Sat Feb 14, 2009 10:08 pm

Maybe I'm a bit of a geek, excuse-me Pibuz I don't realize it. Thanks for telling !

About the filter, the different options as exposed in the documentation under 'renderer settings', near the end of the section (p.22). I'm reproducing it:

splat_filter::box
Box filter. Causes bad aliasing, don't use
splat_filter::gaussian
Gaussian filter with standard deviation of 0.35 pixels.
splat_filter::mn_cubic
Mitchell-Netravali cubic filter. Good all-round filter with little aliasing.
Please refer to the paper 'Reconstruction Filters in Computer Graphics' by Mitchell and Netravali, 1988, for
more information.

I think MN_cubic can still be used but with altered settings (edit: see the following parameters in doc), I can't use it properly myself (have not tried). Gaussian (edit: as splat filter) is told blurry, but downsizing with MN_cubic borrows the argument imho.

Since I am at it:

Code: Select all

	<super_sample_factor>1</super_sample_factor>
	<splat_filter>
		<gaussian/>
	</splat_filter>
	<downsize_filter>
		<mn_cubic>
			<blur>0.6000000238</blur>
			<ring>0.200000003</ring>
		</mn_cubic>
	</downsize_filter>

Maybe you can feed this SKIndigo option you told about with ? (inside the <renderer_settings> tag)

Oh actually super_sample_factor of 1 means none, try 2 or 3 instead.

Kram1032 · Post by **Kram1032** » Sat Feb 14, 2009 10:50 pm

the recommended settings for ring and blur are both 0.333333333333333333333 afaik...

xrok1 · Post by **xrok1** » Sun Feb 15, 2009 3:46 pm

this is what happened when i applied an external .jpg to the displacement channel. SU uv set

i think the problem may be that i only applied a color to the surface (skindigo UVmapping option not availiable in RC menu) then applied the displace to roughen it up? so it seems a UV set was not assigned to a colored surface, thus the displace can't find UV.

xrok1 · Post by **xrok1** » Sun Feb 15, 2009 5:22 pm

i solved my problem by making the material unique, thus turning into a texture which SK assigned UVs to.

suvakas · Post by **suvakas** » Tue Feb 17, 2009 10:52 pm

Hey,
I just checked out Skindigo for the first time. Nice implementation Whaat

Anyway..I wanted to ask,are the calculations you are making to go from IOR to reflection percentage value something you invented ? (I remember asking it already a while ago, but I've lost all the info by now

)
They are acting quite Ok.

Ps. I mean calculations inside def to_ior()

Whaat · Post by **Whaat** » Wed Feb 18, 2009 1:29 am

suvakas wrote:Hey,
I just checked out Skindigo for the first time. Nice implementation Whaat
Anyway..I wanted to ask,are the calculations you are making to go from IOR to reflection percentage value something you invented ? (I remember asking it already a while ago, but I've lost all the info by now )
They are acting quite Ok.

Ps. I mean calculations inside def to_ior()

Thanks suv!

The IOR/reflection conversion is just a hack based on visual comparison.

suvakas · Post by **suvakas** » Wed Feb 18, 2009 1:42 am

Gotcha, thanks !
The one I use in Maxigo is a hack too

, that's why i was wondering.

cpfresh · Post by **cpfresh** » Wed Feb 18, 2009 9:13 pm

whaat, would you be able to add a checkbox for the info_overlay for the next release? it seems it would come in handy once in a while. thanks for your consideration.

neo0. · Post by **neo0.** » Sun Feb 22, 2009 4:18 pm

Are the 1.1.5 preview scenes different from these? They're don't seem to be working.

EDIT : I checked the download link for the 1.1.5 preview scenes, and it's says no such link exists.

If I

EDIT2 : Now using indigo v1.1.6 and the mathching version of skindigo but the previews dont work.. It just gives me a little "could not load" image.

Whaat · Post by **Whaat** » Sun Feb 22, 2009 5:36 pm

Use Indigo and SkIndigo versions 1.1.16. Use the preview scenes that are linked from the first post of this thread.

neo0. · Post by **neo0.** » Sun Feb 22, 2009 6:02 pm

Well, here you go. I can't figure out what i did wrong.

qomop · Post by **qomop** » Wed Feb 25, 2009 12:23 am

neo0

the preview scenes for 1.1.16 are the 1.1.12 ones

neo0. · Post by **neo0.** » Mon Mar 16, 2009 7:48 am

Could someone explain how linked IGMs work? Previously, all I had to do was click load and it would automatically bring in all the textures I had for the material and put them in the right slot. Now, all it does is ask me whether I want to load a UV set..

Pibuz · Post by **Pibuz** » Wed Apr 01, 2009 8:49 pm

Hi all! Hi whaat!
I'm here simply to report that the ALPHA MAP feature in this 1.1.16 unstable version isn't working like it is supposed to

The sky renders black and that's all right, but the walls aren't plain white: they seem to feel the effect of sun's direct shadows and of bumps maps.
Just a report here, nobody to blame for we know it is a beta version.

SkIndigo 1.1.16

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