-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Pekka Paalanen wrote: > On Mon, 08 Dec 2008 14:48:33 +0100 > Philipp Klaus Krause <[EMAIL PROTECTED]> wrote: > >> - From time to time people say that they want support for precompiled >> shaders in the OpenGL API. The main point for this they bring forth is >> reducing loading times for their applications. >> >> I think this advantage of precompiled shaders can be had without support >> for it in the API: It can be inmplemented transparently in the driver. > > Is it just a theoretical gain, or do the people actually have public > benchmark results showing that the net gain with cold/hot disk cache is > is noticeable? A quick spin in Google gave me nothing, but I would not > be surprised if I just missed the right keywords. > > Or is compiling shaders with Mesa so hideously slow that it would be a > clear benefit even without benchmarking?
Yes and yes. A number of app developers have compiled (to IHVs, to the ARB, and to anyone that will listen), that compiling a large number of shaders can easily dominate program start-up time. On Mesa it's even worse. The existing parser is really slow. It is one of several reasons that the GLSL compiler is being re-written. > I can also come up with another reason to have precompiled shaders: > "protecting" the shader source code. I am not sure that makes any sense, > though. Yes. Security through obscurity is always the winning plan...to get management to leave you alone so that you can get real work done. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkk/BMcACgkQX1gOwKyEAw8SEwCcDVI/JD9Q6iRzYdXH7peRfZIl 2+AAn1hX7FB4y5C/Sf3xmEw+w8XP5fwm =EFQs -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
