If/when 16b floats were added to the standard lib, you would just write:
let vertexData: [Float16] = [ 1, 0, 0.5, 1 ]
I should note that something like vertex coordinates is usually better modeled
with a more specific type than [Float], like SCNVector4 or simd.float4 or your
own type, which also solves this problem:
import SceneKit
let vertexData = SCNVector4(1, 0, 0.5, 1)
import simd
let vertexData = float4(1, 0, 0.5, 1)
(NB both of these frameworks are Apple-specific).
- Steve
Sent from my iPhone
> On Nov 3, 2017, at 14:58, Tony Allevato via swift-evolution
> <swift-evolution@swift.org> wrote:
>
> You can write this for the first thing that you want:
>
> let vertexData: [Float] = [1.0, 0.0, 0.5, 1.0]
>
> I don't know enough about 16-bit floats to comment on those.
>
>
>> On Fri, Nov 3, 2017 at 11:26 AM nick ralabate via swift-evolution
>> <swift-evolution@swift.org> wrote:
>> I think it would be helpful for graphics programmers to specify vertex data
>> inline without surrounding every value with Float(4.0).
>>
>> Something like this:
>>
>> let vertexData = [ 1.0f, 0.0f, 0.5f, 1.0f ]
>>
>> Also, it would be great if Swift had a type for half-floats to match the
>> iPhone GPU:
>>
>> let vertexData = [ 1.0h, 0.0h, 0.5h, 1.0h]
>>
>>
>> Thanks!
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