Wireframe does not appear automatically

Framerate is low

1. If this is the first time you have run Velogic Studio, or you have just upgraded to a new version - Windows may still be busy optimising the application for your computer. Please leave it to run for a few minutes and then close and restart.
   

1. Strong light sources (window, door, light bulb) behind the rider, in view of the Kinect will lead to worsened frame rate and a blurry image (though this does not affect the measurement - just the colour image).
   

1. Poor lighting conditions can mean a dimly lit area, or only overhead. Any lighting situation that creates a gradient across the rider (ex. bright at the top and dark at the bottom) or hot spots (shining directly at one of the markers) will harm the lighting score.
   

Liveview isn't live (freezes after one frame)

1. You can update your drivers to the latest version and see if the problem is fixed.
   You should be able to do this with either Device Manager (expand Display Adaptors, right-click your graphics card and choose Update Driver), OR manually install the driver version recommended by Intel to fix this specific issue
   If you install that driver version and still get the freeze, try using Intel's own management software to update to a later version of graphics drivers.
2. You can disable the problematic code for your whole computer by setting this dword flag in Registry Editor:
    HKCU\SOFTWARE\Microsoft\Avalon.Graphics\DisableHWAcceleration : 1
3. Velogic Studio has a special setting to disable hardware acceleration to work around this issue:
   Settings -> Support -> Force software render mode
   ... it's generally better for this setting to be off (because it forces your CPU to do work that should be done by the GPU), but turning it on will work around the driver issue.

Occasional random crashes

Update display drivers

Device Manager - Display adaptors

Change "Video format" to "AVI"

AVI can result in bigger files, but it's more stable because it doesn't rely on a Windows subsystem to generate the video clips.

Tell antivirus not to check the files saved by Velogic Studio

If Velogic Studio is "freezing up" for you when you save a capture, this might help . Windows has a built-in antivirus which scans every file saved to disk. Sometimes we think it mis-identifies a video being saved as a virus, and will halt Velogic Studio without any error report being sent. 

You can avoid these false positives, and also reduce the time taken to save the results of each capture, by telling Windows to ignore the directory where Velogic Studio fit data is saved:

1. Click "Start" and type in "Virus", click on "Virus & threat protection"
   
2. Click "Manage settings" on "Virus & threat protection settings":
   
3. Click "Add or remove exclusions:
   
4. Click "Add an exclusion" and then "Folder":
   
   
5. Choose the folder where Velogic Studio saves fit data (usually this will be "Documents\Velogic Studio fits", but you may have changed it in Velogic Studio's settings)
   
6. Restart Velogic Studio
   

Check for other applications using LibUSB

Some customers have reported issues with Velogic Studio freezing when other applications which use LibUSB are installed on the same computer. One example of such an application is the EBike management software. 

You can check for LibUSB by looking in Driver Manager:

LibUSB

Check for Velogic Studio error messages in the Event Viewer

1. Press Windows key and search for "Event Viewer", then click to run it:
   
2. Click "Windows Logs" and then "Application":
   
3. In the Actions area on the right-hand side of the window, click "Filter current log":
   
   
4. In the Filter popup window, set the options: Event level = Error, Event sources = .NET Runtime, Event ID = 1011, then click OK:
   
   
   
5. In the Actions area on the right-hand side of the window, click "Save Filtered Log File as..."
   
6. In the Save dialog, give the file a name (e.g your name) and save it somewhere you can find it again, e.g. the desktop:
    
   
   
7. Send an email with that file attached, to support@velogicfit.com

Upload dump files

Application generally feels sluggish, videos are laggy

Try unplugging webcam

Use Process Explorer to find the bottleneck

Graph showing performance for Velogic application

1. CPU usage - in the example, CPU usage is low, which is good. (High CPU usage is not necessarily bad, unless you're unhappy with the overall performance of the application)
   
2. "Private Bytes" - this is memory usage, and should remain fairly constant as somewhere around 500-700MB. If it is continually and rapidly climbing, you may be experiencing a memory leak - please contact us and send a copy of your graph (you can screenshot it with [Shift]-[Windows]-[s] key combo)
   
3. I/O - in the example above the IO peaks during the Capture period, when the app is writing video to disk. IO is low aside from that. Interestingly, the CPU peak over the Capture period is quite small, so the CPU isn't working too hard encoding the videos.