Isn't shadow a performance killer?

[kof]

Hi

Topcoat seems to be a performance focused framework designed for mobile, but it still uses box and text shadows, which are known to cause performance issues on mobile devices.

What do you think?

Best,
Oleg

[GarthDB]

Oleg,

This is true. We've done quite a bit of work to remove unnecessary shadows, but the main theme uses them in the design. We have done some initial work on a flat theme that could be used and will have better mobile optimization.

Thanks,

Garth

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On Fri, Dec 13, 2013 at 3:47 AM, Oleg Slobodskoi notifications@github.com
wrote:

Hi
Topcoat seems to be a performance focused framework designed for mobile, but it still uses box and text shadows, which are known to cause performance issues on mobile devices.
What do you think?
Best,

Oleg

Reply to this email directly or view it on GitHub:
#461

[brianleroux]

We def plan to have a flat theme. That said, we're benchmarking to ensure performance. Sometimes perf lore isn't accurate.

[kristoferjoseph]

@kof Short answer YES.
Long answer How much slower?
Without benchmarks and a complete theme implemented we have nothing to compare against.
Flat theme in the works... it is FAF.

[kof]

Its difficult to compare, for this you would need a worst case scenario + an old device ....

[kof]

I mean animating lots of elements with shadows ....

[kristoferjoseph]

True. We can get a baseline of performance impact from comparing the deltas of our current benchmarks. You are right though a comprehensive test would give device specific results. I'm OK with just knowing roughly what the tradeoff is.