How do I know when the mesh has finished rendering

[isJaakko]

When some props of the mesh change, I want to take a screenshot of the canvas, but I can't know when the mesh has finished rendering, so I can't take the correct picture, is there any sign to tell if a mesh has finished rendering?

[krispya]

Have you tried onAfterRender? https://threejs.org/docs/index.html?q=object#api/en/core/Object3D.onAfterRender

[isJaakko]

OK, I'll try this, thanks.

[drcmda]

useEffect is guaranteed to fire after render. you are the one that changes the props so your app should already be deterministic, put the effect where the change was made.