Image PixelS & VDMX

benoitlahoz's picture

Hi all !

I made a VDMX qcFX with the new Image PixelS 2 to track a colored object and display the bounding box, but I can't manage to use it in VDMX.

I don't know if it's an Image PixelS incompatibility or if I have made some mistakes in my comp (eg : troubles of XY coordinates from QC to VDMX).

The comp is attached. Any help would be really appreciated ! :-) Thanks in advance !

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benoitlahoz's picture
Re: Image PixelS & VDMX

In fact, it seems that the great Image PixelS 2 doesn't work on VDMX (or it is my configuration...).

But, the same M.Oostrik OpenCl PixelS kernel works very fine (http://kineme.net/forum/Discussion/DevelopingCompositions/PixelSusingOpenCL). Here is the comp for VDMX.

[edit : in fact this not a color tracking anymore, but a "contrast tracking" I guess. I'm tracking a black object on white color]

PreviewAttachmentSize
Carasuelo_color_tracking.qtz55.56 KB

vade's picture
Re: Image PixelS & VDMX

This sounds like assumptions in OpenGL state settings being set that VDMX changes. Needs fixing in PixelS.

M.Oostrik's picture
Re: Image PixelS & VDMX

Mmm, don't mind fixing the plugin. But I don't understand the problem. Does it also occur with the original plugin?

vade's picture
Re: Image PixelS & VDMX

Just ensure you track and reset all OpenGL state assumptions in the plugin, and manually set any state the plugin relies on (and re-set to previous values).

The joys of middle-ware.