Not found: FFTQueueShader

[juandmi]

Hi, while trying out the FFT 3D waterfall example I run into this error. Audio input works but there is no rendering due to the error.

[chkworks]

https://discourse.vvvv.org/t/why-do-i-get-a-red-colored-node-when-copying-some-nodes-from-the-examples-in-this-case-the-fftqueue/20633

[juandmi]

Thanks, I saw this entry but did not understand the solution. In the meanwhile I cloned the repository from github and opened the VL file from there and this error is gone. Presumably because the shader is now in a subdirectory. However no rendering is done.

[joreg]

Odd, you're saying with a clean install of vvvv 6.3 and simply opening the waterfall helppatch you get that error?

[juandmi]

With a clean install and opening the waterfall from the helppatch there is no error and also no rendering.
Then I download the same file from here https://github.com/vvvv/VL.Audio/blob/main/VL.Audio/help/Analysis/Example%20FFT%203D%20Waterfall%20of%20an%20audio%20signal.vl and with that the FFTQueue indicated the error with the FFTQueueShader dependency.
Then I cloned the full repository and opened the file from within the repository and the FFTQueue error was gone.
But still I don't get a rendering. Audio input is there.

[joreg]

so your screenshot shows audio input, but now next: do values come out of the FFT node? and then does a texture come out of the FFTQeue node?

[juandmi]

FFT has output.
no texture coming out of FFTQueue

[joreg]

odd, but the FFTQueue node is using a Compute shader internally which might for some reason not run on your graphics card. can you tell us what card and driver you're running this on? also you may want to update to the latest driver and see if that helps.

[juandmi]

It's a NVIDIA Quatro K 1100M, driver date: 30.09.2019, version 25.21.14.2625.
Thanks for the hint. I'll try on another PC or with an updated driver if one is available.