Frames Per Second Viewer

Overview

This canvas adds a frames per second text element to the headset. To use the prefab it must be placed into the scene then the headset camera needs attaching to the canvas:

• Select FramesPerSecondCanvas object from the scene objects
• Find the Canvas component
• Set the Render Camera parameter to the camera used by the VR Headset (e.g. SteamVR: [CameraRig]-> Camera(Head) -> Camera(eye)])

This script is pretty much a copy and paste from the script at: http://talesfromtherift.com/vr-fps-counter/ So all credit to Peter Koch for his work. Twitter: @peterept

Inspector Parameters

• Display FPS: Toggles whether the FPS text is visible.
• Target FPS: The frames per second deemed acceptable that is used as the benchmark to change the FPS text colour.
• Font Size: The size of the font the FPS is displayed in.
• Position: The position of the FPS text within the headset view.
• Good Color: The colour of the FPS text when the frames per second are within reasonable limits of the Target FPS.
• Warn Color: The colour of the FPS text when the frames per second are falling short of reasonable limits of the Target FPS.
• Bad Color: The colour of the FPS text when the frames per second are at an unreasonable level of the Target FPS.

Example

VRTK/Examples/018_CameraRig_FramesPerSecondCounter displays the frames per second in the centre of the headset view. Pressing the trigger generates a new sphere and pressing the touchpad generates ten new spheres. Eventually when lots of spheres are present the FPS will drop and demonstrate the prefab.