Bug in ext_light_viewer_capture.cpp - depth image is black

[MPierer]

Hi, I noticed a problem in the ext_light_viewer_capture.cpp example.
When using the PIXEL_BUFFER readback option, the depth image is black.

Reason: The call to

iridescence/src/example/ext_light_viewer_capture.cpp

Line 61 in 8451c81

depth_pixel_buffers[current]->copy_from_texture(viewer->depth_buffer(), GL_DEPTH_COMPONENT16, GL_FLOAT);

uses GL_DEPTH_COMPONENT16.
It should be GL_DEPTH_COMPONENT.

[koide3]

Thanks for reporting the bug. I just fixed and pushed a fix #147.