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Spa Environment render tests

Posted By 3dtester 6 Years Ago
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toystorylab
toystorylab
Posted 6 Years Ago
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Yo, nice comparison...
And native definitely is not bader than Iray in this case!


Toystorylab on Vimeo : https://forum.reallusion.com/uploads/images/ce44ea78-6984-47d8-9bf4-b783.png    Crassitudes (my "Alter Ego") on Youtube: https://forum.reallusion.com/uploads/images/fcc4df30-b3a8-40a5-a427-0735.png

3dtester
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TonyDPrime (10/6/2019)
I think the Iray renders you made look different, but not better.  The iClone ones looks great.

Thanks, yes the iClone renders look better than i expected.
However, maybe there is not much in the scene that Iray can benefit from.
For example, if i had used IBL, the light from the outside through the windows would have casted nice shadows and created reflections.
But i didn't use IBL because with iClone native, IBL behaves wrong. And i wanted to only use light sources that are compatible with both native and Iray.
I could have placed a spotlight or directional light at the outside, but instead i decided to use only the light that comes from the environment sphere through self-illumination.
Of course, this is not optimal.

My little suggestions would be to add some IES light just to make interesting, and then reduce the overall lightness so that it comes off a little darker, but still lit where the lights are.

Ok, i tried different IES light shapes, which is a nice new feature that i definitely want to use.
But the problem is, the iClone spotlights and point lights can't be resized.
So they simply cannot match the bulbs of the wall lamps.
You can see this at the ceiling lamps. The light starts too far away from the ceiling.
I hope you understand what i mean, without having a close look at it.
For the wall lamps i used emissive surfaces (glow) with very high illumination.
This was (my) only way to achieve an acceptable apearance of the lighting.

But my big suggestions are as follows, technically speaking, of course:
-Fill the scene with dozens, if not hundreds, of female avatars (Daz-based and CC3 alike) to really test out the LOD features that iClone now offers on your scene. 
(Importantly, you may want to limit clothing for this routine, if not exclude it entirely, so that the CPU is not overtaxed.)  

Yeah, i want to test the new LOD features.
Have to find some good tutorial on this...

-Perhaps a python script-could be created to have all characters with towels remove them and place them on the floor, so that you can better calibrate all motion features in your environment.

That sounds handy, and seems to really help encouraging me to get my ass off and learn python finally :)

-Finally, test some of the collision physics in iClone by having the characters make contact with each other, then gauge the success of the scene from there with all features in place.

:laugh:







3dtester
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Okay, here are 2 screenshots where you can see the spotlight problem i mentioned.
I disabled all other light sources to show the effect.

https://forum.reallusion.com/uploads/images/de79ad69-6e61-40ee-830a-352c.jpg

https://forum.reallusion.com/uploads/images/690c3195-e6f1-49d9-99c5-ca9b.jpg

As you can see, as soon as the spotlight is inside the lamp housing, no more light gets emitted.

EDIT: i found a small workaround for my 'problem'.

https://forum.reallusion.com/uploads/images/1603ea37-64d5-4886-ac4f-0289.jpg






4u2ges
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As you can see, as soon as the spotlight is inside the lamp housing, no more light gets emitted.


Disable 2 - sided for the lamp housing material and the light would go through.




3dtester
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4u2ges (10/7/2019)
As you can see, as soon as the spotlight is inside the lamp housing, no more light gets emitted.


Disable 2 - sided for the lamp housing material and the light would go through.


Yes, that works. But only if i set the opacity to zero (that doesn't make sense).
And it produces some interesting shadows:

https://forum.reallusion.com/uploads/images/bb7b797f-7c19-4549-b4f3-17d4.jpg





4u2ges
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Yes, that works. But only if i set the opacity to zero (that doesn't make sense).


I had a hunch you're going to say that.;)
The problem is, that the lamp housing geometry probably has wall thickness (or some problem with geometry), which is ridicules given the simplicity of the object.
There absolutely no need for the solid, dual mesh there.
Given a single layer of the mesh, it should be working as following:
(this is a fully opaque, glowing half-capsule with a spotlight inside of it)

2-sided enabled for capsule:

https://forum.reallusion.com/uploads/images/f85b7635-e23b-4f64-ab5f-1779.jpg


2-sided disabled for the capsule:

https://forum.reallusion.com/uploads/images/e7508420-327c-4c95-a1a2-6de5.jpg

You can take those housings to Blender and try to inspect/clean the mesh to make it work as expected.

On the other hand, you could just leave the light outside, then the housing material would not matter.
And there is not much difference in illuminated area (which can be tweaked anyway):

https://forum.reallusion.com/uploads/images/8c9f7740-c1c5-4f2c-8fd2-eeca.jpg






3dtester
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Thanks a lot 4u2ges.
Your help is much appreciated, as always!

The lamps are all in one single mesh. I can't do much with it in Blender.
But at least i now understand why this didn't work as i expected.

I will stay with the workaround of setting up the light parameters so it looks acceptable.

BTW: in Daz Studio, the light bulbs are emissive surfaces with settings for color temp and lumen.
As such, they are treated by Iray as regular light sources.








rosuckmedia
rosuckmedia
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Hello, 3dtester,
Very good work, I think Iray looks even better.
Greeting rosuckmedia :):)
4u2ges
4u2ges
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Well then, I'll be waiting to see the outcome with animation and lots of indecency... lol




Hewa' s Art
Hewa' s Art
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Hello 3dtester,
Very nice work! :)

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