@davidbaron Quick question on vimeo.com/103108124 … is the "active layers" in B2G dev settings refer to all layers or OMTA layers?
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@timdream Roughly, I think, layers are for things that *might* render to their own graphics memory, and active layers are ones that *do*.
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@davidbaron I think it's important for front-end dev to tell between normal layers vs OMTA layers. Anyway, bug 1055903 already filed.
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Replying to @timdream
@timdream OMT animated layers would be a subset of active layers (which would all be OMT composited when we have OMT compsiting)

Aug 23, 2014 · 4:38 PM UTC

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Replying to @davidbaron
@davidbaron Wait, OMTA and OMTC are of different things? To reaffirm — dev should target hitting OMTA for animation performance right?
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@timdream Yes, different. OMTC is compositing on its own thread. OMTA is animations (opacity, transform) running on compositor thread.