Multiple cameras and renderers per single scene #51
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added 2 commits
November 26, 2019 10:36
hccampos
requested changes
Nov 28, 2019
src/potree.ts
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| camera: Camera, | ||
| renderer: WebGLRenderer, | ||
| cameras: Camera[], | ||
| renderers: WebGLRenderer[], |
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Imho, this should be kept backwards-compatible. We could do something like
cameras = Array.isArray(cameras) ? cameras : [cameras];There was a problem hiding this comment.
The typing could also be set to
OrthographicCamera | PerspectiveCamera | OrthographicCamera[] | PerspectiveCamera[]
src/potree.ts
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| priorityQueue: BinaryHeap<QueueItem>; | ||
| } => { | ||
| const frustums: Frustum[] = []; | ||
| const cameraPositions = []; | ||
| const frustums: Frustum[][] = []; |
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I am a bit worried about the garbage due to creating all these arrays each frame.
|
Sorry I typically have prettier fire automatically on commit so I might have left some badly formatted or semicolon-less lines in there |
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I've put together a fairly quick and primitive implementation of re-using the same point cloud scene in multiple WebGL contexts. Without this change, you have to designate a "key camera" that will determine the point load/unload and the other camera(s) just has to live with what it gets. I took the stance that all passed cameras need to be of the same type for simplicity sake but this could be accounted for. Also that cameras and renderers are 1:1 since that fits my use case. Not sure if this is too different and should be kept as a fork or not so I didn't polish it much
Some things that would need to be improved still are the
updateMaterialfunction that's looking for perspective frustum params, plucking theminDistanceandmaxScreenPixelRadiusefficiently, making a real example, and cleaning up function arguments.