Add a simple 3D APIs demo

[Matteo Bruni]

2016-09-01 21:27 GMT+02:00 Ken Thomases <ken at codeweavers.com>:
> On Sep 1, 2016, at 11:50 AM, Matteo Bruni <matteo.mystral at gmail.com> wrote:
>>
>> 2016-08-26 21:12 GMT+02:00 Ruslan Kabatsayev <b7.10110111 at gmail.com>:
>>> Hello,
>>> I've addressed most of the concerns, but would like to get some
>>> clarifications before I continue with the rest.
>>>
>>> On Mon, Aug 22, 2016 at 12:44 PM, Matteo Bruni <matteo.mystral at gmail.com> wrote:
>>>> It would be better to use explicit float constants when assigning to
>>>> float variables (e.g. D3DMATERIAL).
>>> Do you mean that numeric constants are to never be implicitly
>>> converted? Or only integral->floating-point? Or maybe only
>>> double->float?
>>
>> It's not a "NEVER!!11!"-level rule, but if the conversion can be
>> avoided by writing the constant properly e.g. simply adding the
>> appropriate suffix, then it's good practice to do that. In that
>> specific case, you should write 1.0f (or whatever the actual value is)
>> explicitly.
>
> The type conversion from assigning an integer constant to a double variable happens at compile time.  Either coding style produces equivalent results.

Yep. The point stands though.