[osg-users] Nvidia RTX

[Chris Hanson]

So, you'd need a shared GL/Vk context in order to Vk load the data and then
GL trace it, if I understand correctly?

We could probably bring VSG into play to load the data. I think there's
enough working code there already to do so. Or, really, we could just us
what VSG has already and compose and execute the RTX commands without OSG,
but copying already-composed scene data over from the OSG side.

On Thu, Feb 21, 2019 at 3:15 PM Lionel Lagarde <lionel.lagarde at oktal-se.fr>
wrote:

> Hi,
>
> It is a GLSL extension, the ray tracing functions use some input data
> (like the acceleration structure) that can only be constructed and uploaded
> using the vk API.
>
>
> On 21/02/2019 13:34, Chris Hanson wrote:
>
> One of my guys pointed out this recent addition:
>
>
> https://github.com/KhronosGroup/GLSL/blob/master/extensions/nv/GLSL_NV_ray_tracing.txt
>
>
> On Wed, Feb 20, 2019 at 9:47 PM Chris Hanson <xenon at alphapixel.com> wrote:
>
>>
>> Well, I was wondering if there was an OpenGL RTX API anywhere, but it
>> doesn't seem there is.
>>
>> Vulkan would appear to be the way to go for the future, but since that's
>> not ready for the oven yet (don't even have all the mise en place), it
>> might be we just have to make a utility library to shovel OSG data into
>> OptiX and let it do the work for now. There's always going to have to be
>> some kind of bridge from OSG to either Vulkan or something else if no
>> OpenGL support extension ever appears.
>>
>
>
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Chris 'Xenon' Hanson, omo sanza lettere. Xenon at AlphaPixel.com
http://www.alphapixel.com/
Training • Consulting • Contracting
3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 •
GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL
Legal/IP • Forensics • Imaging • UAVs • GIS • GPS •
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