D435i , failed to display

• MartyX Grover

  • January 18, 2021 10:23

  Hi Patrick Yu C W  Does the image also disappear in 2D mode or only in 3D point cloud mode?

  Also, does the depth still disappear in 3D mode if you only have Depth enabled?

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• Patrick Yu C W

  • January 19, 2021 02:01

  Even in Depth enabled mode still have same problem. Results are as follows :

  

  

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• MartyG

  • January 19, 2021 07:27

  There was a similar sounding problem reported recently where the depth image in 3D point cloud mode in the Viewer was disappearing after 3-4 seconds.

  https://github.com/IntelRealSense/librealsense/issues/8110 

  The solution in that particular case was to disable GLSL in the Viewer's settings.

  https://github.com/IntelRealSense/librealsense/issues/8110#issuecomment-754705023 

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• Patrick Yu C W

  • January 20, 2021 03:07

  Problem fixed ! But cannot disable both GLSL feature, else the "measure" function will be disabled also !

  Another issue, for the below picture, the Door (in red box) is only 5 meters apart from the CAM but cannot shown and measure. What is the effective detective and measurable distance for D435i ?

  

  Thanks !

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• MartyG

  • January 20, 2021 06:57

  The measurement function is available in a separate tool via the rs-measure program if you are unable to access it within the 3D mode of the Viewer when GLSL is disabled.

  https://github.com/IntelRealSense/librealsense/tree/master/examples/measure 

  If the door is 5 meters away and not rendered on the depth image, please expand open the Post processing options that are within the Stereo Module options in the side-panel.  Within the list of post processing filters, find one called Threshold Filter.  

  The purpose of this filter is to define a minimum and maximum observable depth, with data outside of the defined range excluded from the image.  It is set to 4 (meters) by default.  If it is enabled (indicated by a blue icon beside it), increase the setting's value to render further depth distance or left-click on the blue icon to toggle it to Off to remove the 4 meter rendering limitation.

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• Patrick Yu C W

  • April 16, 2021 08:58

  My Realsense disappear again and the photo is keep still not following the camera

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• MartyX Grover

  • April 16, 2021 09:44

  There was a similar case on the RealSense GitHub forum in the past week of the image disappearing in 3D mode.  The solution though was to disable GLSL in the settings, which you have previously stated is a problem for you due to losing access to the Measure function of the Viewer when doing so.

  https://github.com/IntelRealSense/librealsense/issues/8813

  Does the image disappear if you disable Use GLSL for Processing but keep Use GLSL for Rendering enabled in order to keep the Measure option accessible?

   

  

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• Patrick Yu C W

  • April 16, 2021 10:24

  It still disappear in 3D view but It 's ok in 2D view

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• MartyX Grover

  • April 16, 2021 10:29

  I will highlight your case and the GitHub one to Intel.  There is no other corrective advice that I can suggest at present though other than to disable both GLSL options at the cost of lack of access to the Measure function if you need to use the 3D mode.

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• Patrick Yu C W

  • April 16, 2021 10:46

  Thank you MartyG ! Looking forward to the solution .

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