OctaneRender™ 2019.1 XB2 Tweet

[FrankLIU]

Often 2x2 up-sampling will result in the image being split on the screen, with a big black bar between the top and bottom, where the top and bottom are squished.

Can you post a screenshot and a sample scene when this happens?

Here you go!
Only happens when 2x2 Up-Sampling.

CrazySquare.2160p.jpg

CrazySquare.2160p.orbx

this bug had been fixed right now.

[Moonhowl]

Hi All,

I was very excited to test the upsampler on one of the bigger projects, a 4K VR animation...I did these two tests without and with the upsampler on 2x2 (see below)

seems like stereo distribution confused the crap out of it lol...am I doing something wrong or does this need to be fixed still by developers?

thanks,
Al

Upsampler turned off (result as expected)

Upsampler turned on (def not as expected)

[funk]

I've run into a bug with the layered material node.

As far as I can tell, the 2 materials I've set up below, should look identical, but the "layered material" version is incorrect and renders the base material black.

1. Load the attached orbx and start rendering
2. Double click the "TEST_MATERIAL" nodegraph node
3. Plug the "layered material" into the material out

[funk]

I dont think it makes much sense to group subsampling and upsampling together.

One is purely for faster interactivity in the viewport while you navigate a scene. The other is used more like a post process for the final render.

You might actually want both on at the same time, so you can move the camera around more interactively, then do a final upsample when the render completes.

[funk]

This is a similar bug to the one I posted before. This time using a composite layer renders incorrectly.

I think all of this is related to the diffuse material's transmission when combined with a specular layer.

1. Load the attached orbx and start rendering
2. Double click the "TEST_MATERIAL2" nodegraph node
3. Plug the "composite material" into the material out

[funk]

I'm getting strange results with the universal thin wall option, when the environment is visible behind it.

I have a grey plane under the statue. The white background is an environment image.

[Goldorak]

I dont think it makes much sense to group subsampling and upsampling together.

One is purely for faster interactivity in the viewport while you navigate a scene. The other is used more like a post process for the final render.

You might actually want both on at the same time, so you can move the camera around more interactively, then do a final upsample when the render completes.

I agree they should not be grouped together

[calus]

But what about extracting "thin film layer" attributes as a separated additionnal layer node ? besides It already has the perfect name: thin film LAYER
( this won't break previous octane scene as they don't use layer nodes)

Because ultimately thin film depends on an underlying BSDF, in which case is either specular or metallic.

Well, doesn't seem right, "ultimatly" thin film layer should not depend only on just one underlying BSDF ,
thin film interference should happen on the specular result of the layered pile of all BSDFs below.

Each layer represents one BSDF exactly currently.

So the Sheen layer represent exactly one BSDF ?

Why do you want thin film in a separate layer? Can you please provide a use case?

I don't understand your question, isn't it the point of layered material, to decompose materials to simpler material components and well ... layer them.
and obviously this is particularly indicated for thin film effect as this phenomen is actually due to a true material layer in the real physical word.
but I understand why it could be hard to do in Octane regarding the historical thin film layer implementation.

[calus]

@Wallace,
Also please change specular layer with IOR 1 to actually behave as IOR 1 not as an infinite IOR (we have metallic layer for that)

Even if it's the way it's workings in glossy material doesn't mean it's right,
layered material is a new implementation so can get rid of old non-sens.

[Notiusweb]

Here is my running wishlist from this XB2:
1 - 1.5x1.5 up sampling (as 3rd up-sampling option)
2 - bigger (or size-customizable) GPU list display-area in device preferences