playcanvas / playcanvas/engine
Implement a solution for regenerating content of dynamic resources when the context is lost
Open
@mvaligursky is already working on this.
Since Jul 8, 2021.
area: graphics
enhancement
- Dominant language
- JavaScript
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Description
When a webgl context is lost, dynamically generated resources are invalidated and their content is lost. Examples:
- content of render target textures (this includes runtime lightmaps, area light LUTs, one time rendered shadow maps ..)
- content of dynamically generated VBs and IBs (instanced geometry VB, many others)
Ideally we should have a solution allowing this to be handled - either by the engine internally if possible (if a cpu storage of the data exists, which it does for VB/IB), or by exposing some events for the user to regenerate their data.
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