Mickey finish draw img canvas to set asset material snapshot

[codecov[bot]]

Codecov Report

Merging #45 into dev will increase coverage by 0.4%. The diff coverage is n/a.

@@            Coverage Diff            @@
##              dev      #45     +/-   ##
=========================================
+ Coverage   87.43%   87.83%   +0.4%     
=========================================
  Files         410      421     +11     
  Lines        7225     7415    +190     
=========================================
+ Hits         6317     6513    +196     
+ Misses        908      902      -6

Impacted Files	Coverage Δ
...aterial/ui/MainEditorLightMaterialForGameObject.js	63.63% <0%> (-36.37%)	:arrow_down:
.../light_material/MainEditorLightMaterialForAsset.js	66.66% <0%> (-33.34%)	:arrow_down:
...s6_global/src/core/ui/eventHandler/EventHandler.js	76.47% <0%> (-23.53%)	:arrow_down:
...eTuple/logic/asset/OperateTreeAssetLogicService.js	84.95% <0%> (-5.31%)	:arrow_down:
...ssetChildrenNode/ui/MainEditorAssetChildrenNode.js	96.96% <0%> (-1.5%)	:arrow_down:
...BaseComponent/MainEditorFloatInputBaseComponent.js	46.66% <0%> (-0.4%)	:arrow_down:
...entHandler/MainEditorChangeGeometryEventHandler.js	100% <0%> (ø)	:arrow_up:
...ce/record/editor/asset/MaterialNodeAssetService.js	80% <0%> (ø)	:arrow_up:
...lectedFolderNodeIdInAssetTreeAssetEditorService.js	75% <0%> (ø)	:arrow_up:
.../eventHandler/MainEditorChangeLightEventHandler.js	100% <0%> (ø)	:arrow_up:
... and 125 more

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