Help required with raspberry pi 3 and processing

Question

i am creating a project that requires image capturing from pi camera in processing. i know that normal video library doesn't work in raspberry so i downloaded opengl video library but it uses p2d or p3d. now the problem is that whenever i am using p2d or p3d, sketch output is a black screen it does not show anything but the program is running correctly (i know this because i m printing mousex value on change in console)
i m out of options
thanks in advance

Answer 1

did you google it?

Answer 2

yes, but couldn't find anything

Answer 3

use stackeoverflow.

Answer 4

hmmm

Answer 5

For use with the Raspberry Pi camera, make sure the camera is
enabled in the Raspberry Pi Configuration tool and add the line
"bcm2835_v4l2" (without quotation marks) to the file
/etc/modules. After a restart you should be able to see the
camera device as /dev/video0.

quoted from the simpleCapture.pde code found at:
https://github.com/gohai/processing-glvideo/blob/master/examples/SimpleCapture/SimpleCapture.pde

Answer 6

have a look at this discussion it looks like your issue:
https://github.com/processing/processing/issues/4818

Answer 7

apart from simple sketches, have you been able to run the example provided with the openGL video library?
did the camera get detected?
was the image black?

Answer 8

here are the installation instructions for OpenGL video playback
https://github.com/gohai/processing-glvideo/blob/master/README.md

Answer 9

btw i had a similar issue on ubuntu due to the different version of GStreamer.
replacing GStreamer fixed it.

Answer 10

check below link how to captures image using pi camera

https://youtu.be/3KlIV8y2oiM

Answer 11

i am getting the image using python script
but not with processing

Answer 12

I already did that but its not working. The issue is not with the camera, issue is with P3D/P2D.
If i run a normal processing sketch it runs successfully but if i add p3d/p2d to that same sketch the output screen becomes black.
the sketch is running correctly, only the output screen is black

Answer 13

the example specifies p2d.
if you use p3d you should draw the image from the video stream as a background.

you must save the current frame in a PImage object and use the background function to display it
background(yourPImageFrame);
Make sure to have the image size matching your sketch size.

Answer 14

if a create a simple sketch which draws a simple rectangle on the screen it runs ok but if i add p2d/p3d to that sketch then output screen becomes black

Answer 15

i cant use the opengl because it needs p2d/p3d
and if i use that then the output is black

Answer 16

thanks buddy
i will try them tomorrow and see if that works