Hi,<br><br>I should add that my test system is a Linux Nvidia driver, and I don't have any ATI available.<br>On this configuration, I do receive non negative location values for all input uniforms (even if they are not used). <br>
This may indeed vary depending on the target system.<br><br>Thanks,<br><br><div class="gmail_quote">2011/8/20 Stefan Dösinger <span dir="ltr"><<a href="mailto:stefandoesinger@gmx.at">stefandoesinger@gmx.at</a>></span><br>
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Am 20.08.2011 um 22:28 schrieb Henri Verbeet:<br>
<div><div></div><div class="h5"><br>
> On 20 August 2011 18:46, Norbert Lataille <<a href="mailto:nlataill@gmail.com">nlataill@gmail.com</a>> wrote:<br>
>> Performance gains (for parts 1/2/3) on WoW:<br>
>> <a href="http://norbert.lataille.free.fr/constants.html" target="_blank">http://norbert.lataille.free.fr/constants.html</a><br>
>> Results for 3dmark06, X3: <a href="http://norbert.lataille.free.fr/perf.html" target="_blank">http://norbert.lataille.free.fr/perf.html</a><br>
>> (line: Constants).<br>
>><br>
> Do you have those in a reasonable format as well?<br>
</div></div>The graphs are nice to click through them, but the plain numbers would be nice too. The difference looks roughly like the GLSL-ARB shader performance difference.<br>
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My impression was that the drivers already set unused constants to -1. Sure, we declare all 256 constants, but unless indirect addressing is used the driver eliminates those that aren't read. Unfortunately I don't know which driver I used to test that, maybe it was OSX.<br>
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