Taken But in this particular case, being heavy matrix opreations in 3d, this kills your performance.
Purity is nice, but here we talk of criticals, too. Thomas Tomiczek THONA Software & Consulting Ltd. (Microsoft MVP C#/.NET) (CTO PowerNodes Ltd.) > -----Original Message----- > From: Unmoderated discussion of advanced .NET topics. > [mailto:[EMAIL PROTECTED] On Behalf Of Frans Bouma > Sent: Montag, 17. Mai 2004 10:00 > To: [EMAIL PROTECTED] > Subject: Re: [ADVANCED-DOTNET] Large structures > > > I think the main issue here is that teh DirectX API (which > this was > > about in the beginning) does not pass the structy by ref. > > > > Looks like a tremendous oversight to me. > > > > The rest then is basically a logical extension of standard .NET > > semantics (structs copied onto stack) and not perfect optimizations > > (that are also not really wanted). > > > > Has anyone a clue whether there may be a reason they are > not defined > > as ref? > > Because the DX api is a COM api, which works with > objects and pointers, something you can mimic with classes in > C# and references to objects. Structs in .NET should, correct > me if I'm wrong, be used to create somewhat specialized value > types, like a 'Coordinate', and then also just for .NET, not > for COM interop. > > Because there are some drawbacks on structs, like > manipulating them in a boxed situation (array list for > example) is cumbersome, it's IMHO best to use classes instead > of structs, especially when it comes to DX interop. > > FB > > =================================== > This list is hosted by DevelopMentor(r) http://www.develop.com > Some .NET courses you may be interested in: > > NEW! Guerrilla ASP.NET, 17 May 2004, in Los Angeles > http://www.develop.com/courses/gaspdotnetls > > View archives and manage your subscription(s) at > http://discuss.develop.com > > =================================== This list is hosted by DevelopMentor® http://www.develop.com Some .NET courses you may be interested in: NEW! Guerrilla ASP.NET, 17 May 2004, in Los Angeles http://www.develop.com/courses/gaspdotnetls View archives and manage your subscription(s) at http://discuss.develop.com
