[Rev 04] RFR: 8217472: Add attenuation for PointLight

[Kevin Rushforth]

On Wed, 13 May 2020 23:42:40 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

>> If this were an even remotely representative use case, then no, the performance hit would not be OK. The test was
>> designed as an artificial "worst-case" stress test: a single mesh with a large number of very large (window-sized)
>> quads stacked on top of each other. Any real-world use case won't do this.  We should make sure that we aren't seeing
>> any significant performance drop when rendering spheres (at a couple different tessellation levels) or boxes.
>
>> We should make sure that we aren't seeing any significant performance drop when rendering spheres (at a couple
>> different tessellation levels) or boxes.
> 
> I missed this. Do you mean that the test should create a mesh of a sphere instead of a flat surface?

I would say in addition to rather than instead of, since both are useful.

What might help is to add the sphere test plus the pathological test I put together into your test program so we can
select between them. And then get a few of us to run that updated program and post results.

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