Am 25.04.20 um 19:09 schrieb Kevin Rushforth:
On Fri, 24 Apr 2020 05:06:56 GMT, Phil Race <p...@openjdk.org> wrote:
Here is a slightly modified test program. It fixes a compilation error in the
previous, and also adds a system property
to set the number of quads:
It creates 200 quads by default. If you need to increase this or decrease it to
get something in the ~ 10 fps range you
can do that with `-DnumQuads=NNNN`.
[pointlighttest.zip](https://github.com/openjdk/jfx/files/4526179/pointlighttest.zip)
@kevinrushforth
Member
kevinrushforth commented Apr 18, 2020
I think most of those are good suggestions going forward. As for the
performance drop, the only place we've seen it so
far is on graphics accelerators that are a few years old by now.
So 50% drop on a 2015 macbook pro is OK ? Do we have numbers on recent macbook
pros ?
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.
-------------
PR: https://git.openjdk.java.net/jfx/pull/43
Will there also be any performance drop in case you just use the default
parameters for the lighting?
The default, which corresponds to the current lighting, should not need
any additional computations
and thus no performance drop.
