16bit Texture Object in sutil_7_sdk

Gaming and Visualization Technologies Visualization OptiX
#1

in OptiX 7.0.0 SDK project “sutil_7_sdk” file Scene.cpp
in Scene::addImage() in line 476

cudaCreateChannelDesc<uchar4>();

is also used for 16bit textures.

From the CUDA docs I found:
cudaCreateTextureObject() creates the texture object from the resource description … “cudaResourceDesc”.

And in Scene::addSampler() that resource description uses then also that cuda array (built with the uchar4 channel description) on a 16bit texture…
Is there an internal conversion? Or is this intended?

so for 16bit textures I would expect :

cudaCreateChannelDesc<ushort4>(void)

Or I am wrong?

#2

Yes, that looks incorrect inside the examples.
I’ll file a bug report to have it fixed.