RFR: 8217472: Add attenuation for PointLight [v5]

[Nir Lisker]

On Fri, 24 Jul 2020 21:41:04 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Nir Lisker has updated the pull request with a new target base due to a merge or a rebase. The pull request now
>> contains 11 commits:
>>  - Merge branch 'master' into 8217472_Add_attenuation_for_PointLight
>>  - Attenuation and range changed internally to floats from doubles
>>  - Fixed shader compilation errors for 2 and 3 lights in es2
>>  - Addressing review comments
>>  - Fixed whitespaces
>>  - Correction for indexes
>>  - Docs and year update
>>  - Merge remote-tracking branch 'nlisker/8217472_Add_attenuation_for_PointLight' into
>>    8217472_Add_attenuation_for_PointLight
>>  - GL pipeline
>>  - Separate range from attenuation
>>  - ... and 1 more: https://git.openjdk.java.net/jfx/compare/4ec163df...2e1223ed
>
> High-level comments:
> 
> 1. The API docs look good. If you change the public API to `@since 16` then you can also update the CSR and move it to
> the "Submitted" state. 2. I think it would be good to cleanup the performance test and make it part of this PR, maybe
> in `tests/performance` (which currently only has the not-very-useful `VMPerformance` subdir) or `tests/manual`. 3. We
> need some functional tests, ideally automated ones in `tests/system`
> I also left a few inline comments. I haven't reviewed the shaders yet, so I do that, in addition to further testing,
> next week.

@arapte
> I verified it in the compiled D3D shader, that the change reduces one multiplication instruction in most of the shaders.

I'd like to know how you did that.

-------------

PR: https://git.openjdk.java.net/jfx/pull/43