What the different between these two way to create EntityCommandBuffer ?
this
var ecb = new EntityCommandBuffer(Unity.Collections.Allocator.Temp);
and this
var ecb = ecbSingleton.CreateCommandBuffer(state.WorldUnmanaged);```#What the different between these EntityCommandBuffer?
modern cape
tidal glacier
Second one is managed by an ecb system, meaning it’ll be played back automatically when that system runs
First one is one you need to playback yourself at some point
modern cape
So, is it recommended to use the automatic one in most usecase? but use the manual one for parallel job, is it correct?
tidal glacier
No, parallel jobs can use the ecb system managed ones as well. You just use .AsParallelWriter() like always.
Manual is if you for whatever reason want to run a command buffer at a specific point instead of using the common ecb systems. Manual would be bad since you’re going to add a sync point, so only use that if you have no other choice, like you know you absolutely need the ecb to execute immediately before some other systems run