[x3d-public] ANARI+x3d = standard x3d raytracing?

[GPU Group]

I was thinking of porting BVhacker to python for platform portability,
adding some functions including loading hanim, and using opengl in python
to render.
But what's missing is a scene graph. I don't think x3d.py is useful as a
scene graph. Perhaps x3d.py could work like Blender x3dv - as an
import/export intermediary, and anari2x3d (a2x_) and x3d2anari (x2a_) would
be like the b2x_ functions in blender x3dv exporter. And once those
functions are developed then the anari scene graph could be used in other
applications.

-Doug

On Tue, Nov 28, 2023 at 2:57 AM John Carlson via x3d-public <
x3d-public at web3d.org> wrote:

> Have you wanted to do raytracing in x3d across a range of graphics cards,
> but had no way to do low level stuff?  Consider the ANARI industry standard
> 1.0 API SDK:
>
> https://github.com/KhronosGroup/ANARI-SDK
>
> ANARI is close to X3D Interchange profile, including cameras and lighting.
>
> I’m open to requests for X3DJSONLD JSON inputs to ANARI python, C and C ++
> output, but I’m not going to do it unless someone wants it, and can test my
> products.  I don’t have a raytracing card myself.  I will probably render
> X3D to USD for my testing.  My preference would be to use Python output,
> since that is allied with USD.
>
> If you want to start with XML or VRML and skip X3D JSON, seek elsewhere.
> I can provide assistance to those who need conversion to JSON.
>
> Since ANARI is close to Interchange format, there’s probably no reason to
> write an ANARI renderer for other X3D profiles, but someone else may want
> to try.  I don’t believe there is an X3D Loader for ANARI either.  I’m not
> interested, as I am interested in program synthesis.  X3DJSONLD is my X3D
> Loader, which comes before program synthesis.
>
> I don’t believe there is animation with ANARI, but there is an ANARI addon
> renderer for Blender and an ANARI backend to USD converter for Omniverse
> (or something like that).
>
> ANARI does have PBR, I’ve heard.
>
> I have heard of people using ANARI with OpenXR.
>
> I’m just looking for an excuse to try it out and no marketing or sales
> implied.  I’m a volunteer, with quite a bit 3D training in college,
> including writing a raytracer.
>
> John
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