Newbie Q: Convert VideoCapture buffer (PIL.Image) to Texture

General Discussion
#1

Hiyas
Im trying to display vido from webcam in Panda and I cant seem to move the data from the camera to Panda (FFMpegTexture/OpenCVTexture ).

I have tried:
discourse.panda3d.org/viewtopic.php … highlight=

but there doesnt seem to be any such thing as OpenCVTexture in the latest install the closest thing I found was in libgrutil.in but i cant figure out how to grab the class.

325 13 FFMpegTexture 75777 13 FFMpegTexture 13 FFMpegTexture 0 0 0 1 195 0 0 1 196 0 1 0 326 0 0 0 0 408
////////////////////////////////////////////////////////////////////
//       Class : OpenCVTexture

So i thought id try using python VideoCapture(videocapture.sourceforge.net/ ) -> PIL-> Panda. Is there something to convert between the two formats (PIL-> Panda)?

any ideas? or do i have to rebuild from the panda source? (panda\src\grutil\openCVTexture.h exists so maybe thats where to go next?)

thanks in advance

A.

#2

Okay, this is weird. Can’t you import OpenCVTexture at all? What is the exact error you are getting when doing this:

from pandac.PandaModules import OpenCVTexture
#3 
    from pandac.PandaModules import OpenCVTexture
ImportError: cannot import name OpenCVTexture

Everything else seems to be importing correctly both of the following import correctly:

from pandac.PandaModules import FFMpegTexture
from pandac.PandaModules import VideoTexture
#4

Which binary on the download page did you use? The windows build?
And, which version? It might be that 1.5.2 isn’t working while 1.5.3 is, or the other way.

#5

Panda3D-1.5.3.exe

Looks like openCVTexture.I wasnt included somehow. Although ffmpegTexture.I and fisheyeMaker.I were.

#6

Can you try installing 1.5.2 to see whether it works there?
This seems like either a problem in the build system or just an accidental omission when it was compiled.

#7

Yup, ill give it a bash tonight… let you know how it goes :slight_smile:

#8

Aww no luck - maybe its been broken for a while - I guess I’ll have to try the compile from src route.

A.

#9

Hmm, I’ve been investigating this some more and it appears to be a bug in the build system. I’ll look into fixing it and making sure OpenCV will be included in the build.
If you want to compile Panda3D from scratch, you’d need a patch for OpenCV. When I fixed the bug and have a patch, I’ll send it to you, if you want.

EDIT: Disregard my former message. I’m seeing OpenCV is somehow in the thirdparty packages for VC7 but not for VC8. I’ll make sure it gets fixed in the next release.

#10

Awesome! Thanks for taking the time :slight_smile: