My last post on render loops (hopefully)..

Game Loops, Game Physics, and Star Wars spoilers!

dwellerville — Thu, 05 May 2005 22:13:47 GMT

Tom Miller finally states the last word on the subject of game loops in Managed DirectX code.&nbsp; Now...

re: My last post on render loops (hopefully)..

Richard — Fri, 06 May 2005 20:58:16 GMT

So Tom how does this way of looping compare (fps and memory wise) to the way Rick Hoskinson recently started discussing on his blog. http://blogs.msdn.com/rickhos/archive/2005/04/04/405327.aspx

-Richard
Richard.Parsons (at) gmail.com

re: My last post on render loops (hopefully)..

wtf — Sat, 07 May 2005 01:08:06 GMT

Why on earth is this page using SSL?

re: My last post on render loops (hopefully)..

Judah Himango — Sun, 08 May 2005 03:02:29 GMT

Tom, in your Message struct, what is WindowMessage? Would that be System.Windows.Forms.Message?

re: My last post on render loops (hopefully)..

Seb Nemeth — Sun, 08 May 2005 14:45:47 GMT

How does this stand up to supporting rendering to Controls and not just a Form, I wonder..?

re: My last post on render loops (hopefully)..

Zman — Mon, 09 May 2005 07:06:20 GMT

Added link to 'the saga of the MDX render loop' http://www.thezbuffer.com/articles/185.aspx

re: My last post on render loops (hopefully)..

Turon — Mon, 09 May 2005 09:21:48 GMT

Hi Tom,

Can't help but notice that your new approach, if i'm not mistaken, is quite similar how GLUT handles the rendering. In GLUT, you need to hook up a callback to the idle event for rendering. Your latest approach is the cleanest so far. KUDOS Tom!

BTW, I have your book "Beginning 3D Game Programming" and it ROCKS!

PS: Sorry about the OpenGL / GLUT post. Since I moved to using C#, I'm now a Managed DirectX fan :P

re: My last post on render loops (hopefully)..

Bob the slob — Mon, 09 May 2005 09:56:12 GMT

This is bloody brilliant, why didn't I think of this? I have perhaps the most complicated render loop in the history of the universe right now (mind you, it handles switching between windowed/fullscreen, task switching, res changes flawlessly).

re: My last post on render loops (hopefully)..

Petey — Mon, 09 May 2005 12:30:28 GMT

public WindowMessage msg;

Where does "WindowMessage" come from? I can't seem to find it in any of the namespaces!

Awesome, but threads are better

Sivan Segev — Mon, 09 May 2005 18:58:54 GMT

I've been tracking the posts regarding render loops, but early on I moved the scene preperation and rendering into a seperate thread. The thread renders to a window or a full screen, at synchronized frame rate or at maximum, with varying "sleep" times. This has worked much better than all proposed "main thread" render loop proposals so far.

re: My last post on render loops (hopefully)..

sapropel — Thu, 12 May 2005 21:49:16 GMT

i was going to try it out, but where did you get that WindowMessage enum/struct/class/whatever from? the one inside the Message struct declaration.

thanks []

re: My last post on render loops (hopefully)..

sapropel — Fri, 13 May 2005 02:57:47 GMT

also, why the use of SuppressUnmanagedCodeSecurity? theres no need for that (i think).

and where is that CharSet.Auto from? the only one i know is CharacterSet, and it has no .Auto

also, could you post a complete working example please? something really simple like device.Clear(...); device.Present();

i managed to compile it by removing the CharSet=CharSet.Auto and chaging the public WindowMessage msg; Message struct member to public int msg; (since i dont know where that WindowMessage is), but i dont know if it is as good as yours.

again thanks :)

re: My last post on render loops (hopefully)..

Deezer — Mon, 16 May 2005 21:32:36 GMT

Is there anywhere a newbie can go to view VB.NET solutions to the issues that started this issue applies to VB.NET Managed DirectX coding too?

Everything about Managed DirectX samples and blog chats is infuriatingly C# centric. Am I simply choosing the wrong language if I wish to learn to use Managed DirectX? The utter lack of VB.NET samples even in the DirectX SDK itself, not to mention no talk of how this render loop issue here is implemented in VB.NET, suggests VB.NET is indeed a poor language choice.

Any pointers to a good VB site covering this issue would be very welcome.

re: My last post on render loops (hopefully)..

Mort — Tue, 17 May 2005 05:23:45 GMT

I hate to sound stupid but what #using' do you need with that.

I copied the code in to a blank project and I get compile errors.

Thanks

Mort.

re: My last post on render loops (hopefully)..

T-T — Mon, 23 May 2005 14:59:04 GMT

Wassup with all that C# Code?
Forgot about vb have we?

it has been there for ages

akshay — Thu, 26 May 2005 16:21:16 GMT

The PeekMessage loop has been in use for ages by game programmers who code in unmanaged DirectX and even OpenGL. What surprises me is that it took such a long before someone was able to figure it out for managed dx!

re: My last post on render loops (hopefully)..

Anonymous — Mon, 30 May 2005 19:45:57 GMT

I put the using directive System.Runtime.InteropServices and that solved all of the errors except for one that says:

The type or namespace name 'WindowMessage' could not be found (are you missing a using directive or an assembly reference?)

I've looked in the MSDN and all over the web, and I cannot find the namespace it is in. Thank you for your help.

I guess this works, yet ...

mimfeld — Wed, 01 Jun 2005 09:47:21 GMT

I can only guess this works - since I cannot get it to run. Reason for this being that I - as an average programmer - simply have no idea what namespaces / references to include.

What type is WindowMessage? IntPtr? (I tried looking for WindowMessage in MSDN to no avail).

System.Drawing.NativeMethods seems to be an internal class. Consequently I get compilation errors when trying to compile the code. What am I missing?

Might be I am the only one that plays around with MDX without a complete understanding and knowledge of the .net framework, at least to my very limited mind a complete code sample would be extremely helpful.

Don't get me wrong, I am not critizing here. It's just that I have very limited ressources (both time and brain ;) )

re: My last post on render loops (hopefully)..

Akshay — Fri, 03 Jun 2005 09:47:15 GMT

I have made a sample framework app using the loop you have suggested here. It does work better than the original SDK loop. It is located <a href="http://photongl.blogspot.com">here</a>.

re: My last post on render loops (hopefully)..

John — Sat, 04 Jun 2005 23:44:30 GMT

I'm wondering how much of a performance difference will be if I take out the AppStillIdle while loop and just call the update and render methods within OnApplicationIdle.

Tom, do you have any figures on this?

Trouble finding WindowMessage struct

ChrSmith — Wed, 08 Jun 2005 22:58:38 GMT

That looks great. I am new to DirectX, but I remember back when doing OpenGL that the main render loop was the most difficult part- especially trying to balance always redrawing without overworking the CPU.

Could you provide the source for the C# version of the WindowMessage struct as well? I am having difficulty getting this to compile since I assume that structure is defined else where in your code. (Is it defined somewhere in the managed source for the April MDX SDK update?)

Thanks,
-Chris

re: My last post on render loops (hopefully)..

HopeDagger — Sat, 11 Jun 2005 21:50:32 GMT

Simply put: Yuck. That's not simple nor elegant. :/

re: My last post on render loops (hopefully)..

Exabyte256 — Wed, 22 Jun 2005 10:49:17 GMT

Hrm. The Message struct is already defined by the .NET libraries as:

System.Windows.Forms.Message

New Client Code!

corporate samurai — Wed, 08 Feb 2006 18:59:54 GMT

I have checked in a new initial version of the Client UI which is based on the OnApplicationIdle style...

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