Alexander Shalamov

@SergeyPetrachkov could you tell what v10 features do you use? Do you use 3D terrain? Do you have measurements for an application that uses v6 SDK?

We've tried [prototyping few use-cases](https://w3c.github.io/sensors/usecases#custom-fusion-sensors) for custom fusion. Wrapping EventTarget interface for multiple sensors and managing permissions for each fusion source is not a nice thing to leave for web...

@martijnthe dynamic calibration might be a nice feature, especially for magnetometer and fusion sensors that use it. However, if I remember correctly, none of the platform APIs provide such functionality,...

@pozdnyakov We might use 'accuracy' as a hint for required calibration, wdyt? We already have an issue for that https://github.com/w3c/sensors/issues/154 Accuracy level is exposed on many platforms.

Abstract / concrete class terms are widely used in OOP / computer science domain https://en.wikipedia.org/wiki/Class_(computer_programming)#Abstract_and_concrete I would prefer to keep these terms. Maybe definition can be bit more specific, e.g.,...

@pozdnyakov This is same issue as #139 , I still think we should split parameters that are mutable during lifecycle of a sensor, frequency is one of such parameters.

@tobie Initially we've implemented API in most efficient way. The Sensor.reading was a 'current' reading, thus, no need to create new reading on every update. After discussion under (https://github.com/w3c/ambient-light/issues/15), you...

@Maksims do you have any test set (data) which shows that current approach makes 60fps target unreachable? I quckly measured codepath for sensor reading update using current API and with...

@tobie There are few concerns with proposed modifications. - When control and data interfaces are merged, extensibility is lost. For example, for sensors that can provide additional data in 'uncalibrated...

@Maksims > Haven't seen such pattern anywhere in a W3C. https://w3c.github.io/webvr/#dom-vrdisplay-getframedata Since you have raised concerns about GC / performance issues related to current API, do you have any data...