OctaneRender™ V4 XB4

[Issa]

Ok. Would you be able to upload the scene to dropbox or somewhere I can download it so I can take a look?

I've sent you my scene in private message thank you

[Jolbertoquini]

I am making some sort of point cloud rendering in octane using scatter node.

I can easily load over 10 millions points in octane 3 but no way for v 4, even with out-of-core turned on. Please tell me that will be fixed.
The dream for v4 may be to be able to handel 1 billion instance or closer.
I deal with billion of photogrametric points from time to time at work.

I took the model from this site for my test:
https://dronemapper.com/sample_data/

Hi Issa,

This is interesting, and looking really good did you use the ply with the vertex color and generate the scatter on Houdini? or other way?

Cheers,
JO

[Issa]

This is interesting, and looking really good did you use the ply with the vertex color and generate the scatter on Houdini? or other way?

Hi Jolbertoquini,
Yes this is exactly my workflow for Houdini. You can also wrote a script to directly translate the .ply, What I've done for my company


thank you : )

[Jolbertoquini]

This is interesting, and looking really good did you use the ply with the vertex color and generate the scatter on Houdini? or other way?

Hi Jolbertoquini,
Yes this is exactly my workflow for Houdini. You can also wrote a script to directly translate the .ply, What I've done for my company


thank you : )

Thanks a lot Issa.

Awesome I also did meshlab save as xyz file change to .txt and is working well only trying to find how to put the color but you totally right Houdini save the day there hehehe!

Cheers,
JO

[Issa]

Awesome I also did meshlab save as xyz file change to .txt and is working well only trying to find how to put the color but you totally right Houdini save the day there hehehe!

Pretty ! Follow this to get the color in houdini:
https://vimeo.com/172594655

[Notiusweb]

There are ways to change this, but to determine which way, we would need to know what it would be used for - can you give us an example in your workflow where you need this (for our understanding)?

In the mean time,we will fix the tooltips on these settings to indicate that they operate only for direct light.

I use it all the time for indoor scenes. On walls, doors, ceilings, windows - where ever I need a fill light and its reflection. Especially for wall lights to assist in various ways.

But - the problem is also in the Octane Environment/HDRI.

hdri.jpg

Otoy - Maybe my idea for Object Layer Map having separate check boxes for receives and casts shadows could be useful here?
Or maybe, somewhere in the mix, a shadow amount slider, like opacity, to reduce the presence of any shadows...

Fake, but hey...as it is it's accuracy out the window, so when in Rome...

DO AS NAPOLEON WOULD DO. CONQUER THE ENEMY, AND LEAVE NO SHADOW OF A DOUBT....

Eh?
Eh......?

[Jolbertoquini]

Awesome I also did meshlab save as xyz file change to .txt and is working well only trying to find how to put the color but you totally right Houdini save the day there hehehe!

Pretty ! Follow this to get the color in houdini:
https://vimeo.com/172594655

Yes, I realize the plug does it automatic, basically not need Roahn stuff anymore also get as Alembic cache (not csv scatter) I realize is perfect and way stable for XB4 I have full PLY Pointcloud straight there really faster and stable. with the alembic cache.

Cheers,
JO

[Issa]

Yes, I realize the plug does it automatic, basically not need Roahn stuff anymore also get as Alembic cache (not csv scatter) I realize is perfect and way stable for XB4 I have full PLY Pointcloud straight there really faster and stable. with the alembic cache.

All done !
Yes but we need stable .csv for octane standalone. This is pretty handy and straightforward in our workflow with scripting all the boring stuff, no more need of Houdini

[abstrax]

Sorry, we still don't get it.

There are ways to change this, but to determine which way, we would need to know what it would be used for - can you give us an example in your workflow where you need this (for our understanding)?

In the mean time,we will fix the tooltips on these settings to indicate that they operate only for direct light.

I use it all the time for indoor scenes. On walls, doors, ceilings, windows - where ever I need a fill light and its reflection. Especially for wall lights to assist in various ways.

If you use a fill light, you would make it transparent wouldn't you? And thus the fill light doesn't cast any shadows anyway. But if you are talking of the objects that will have an indirect shadow due to the reflected fill light from the wall you certainly want to see (indirect) some shadow here, don't you, Or what am I missing?

It's probably best to show us some real scene where indirect shadows are a problem, then we can try to figure out a way to improve that behaviour, because we have a couple of ideas of what we could do, but all of them have some negative side effects that usually don't make any sense.

But - the problem is also in the Octane Environment/HDRI.

hdri.jpg

We don't include the environment in the direct light calculation if it's constant. Only if you use some non-constant texture (like an HDR image), the environment is included in the direct light calculation and thus only then the option "shadow visibility" has an effect (if you have "importance sampling" enabled). In other words if you use a simple colour texture in the texture environment, the shadows below your objects are indirect shadows.

[Zay]

Sorry, we still don't get it.

You're right! I can fix it with transparency as you said.
The problem was me still thinking that "transparency on" was a no go as I would lose light reflections. But I see now that is fixed and it was my test scene light setup that made me think it was not.
So my mistake, sorry
Carry on