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New Post: Could this be ported to Windows 8 WinRT?

jerrynixon — Thu, 14 Feb 2013 15:39:16 GMT

I hope this gets ported. There's more potential, opportunity, and future in WinRT. Rene?

Best regards,
Jerry Nixon

New Post: Could this be ported to Windows 8 WinRT?

teichgraf — Tue, 05 Feb 2013 09:29:48 GMT

I'm pretty sure this could be ported to WinRT. The Matrix3D struct is in there. The port should actually be pretty straightforward.

rene

New Post: Could this be ported to Windows 8 WinRT?

JerryNixon — Mon, 04 Feb 2013 22:55:55 GMT

In so many ways, WinRT is a younger version of SL. It could use a project like this to make 3D-like manipulations easier in XAML. Could this project be updated to WinRT?

Best regards,
Jerry Nixon

New Post: Project is dead?

teichgraf — Tue, 17 May 2011 06:50:58 GMT

Not really. It's actually exactly what he all have hoped for: XNA in the Browser.

New Post: Simple Rotation and Perspective - I'm stumped

Dewey — Mon, 16 May 2011 22:23:59 GMT

You're not alone, I know a bit about what I'm doing, and it hasn't been as easy as it should be to make this work.

BTW, I don't think the project is dead, but the author is busy doing things for paying customers.

New Post: Project is dead?

Dewey — Mon, 16 May 2011 22:22:51 GMT

Now that the 3D in Silverlight 5 isn't the kind you thought, will you re-consider this?

New Post: Simple Rotation and Perspective - I'm stumped

toddmain — Tue, 29 Mar 2011 16:20:41 GMT

Wow, I guess this project really is dead.

New Post: Project is dead?

teichgraf — Thu, 24 Mar 2011 10:53:03 GMT

Matrix3DProjection isn't. Only PlaneProjection and no you can't use it for these opertions you find here. Like projection matrix.

SL5 will bring real HW-accelerated 3D and I don't see the value investing more energy in getting this here HW accelerated.

New Post: Project is dead?

F0rc0sigan — Thu, 24 Mar 2011 09:50:49 GMT

Rene,

Do you know whether Matrix3DProjection GPU accelerated in SL4? And if no can we instead of it use Transformations and Plane projection to have benefits from gpu acceleration ?

Thanks,

Dima

New Post: Simple Rotation and Perspective - I'm stumped

toddmain — Mon, 21 Mar 2011 18:31:37 GMT

Maybe this is because I really don't understand what I'm doing, but I'm looking to take a given image (let's call it "img") (which is a jpg 173 w / 136 h ) on a Canvas called "MyViewPort" (which is 640 w / 480 h) and Rotate both the X and Z by 30 degrees and have a 45 degree field of view. Then I'm looking to do the same thing, but zoom in by 200%. In both cases, the image doesn't translate at all, it stays exactly where it is.

I've looked through the samples and toyed around with this quite a bit, but can't really get anything working. Most of the time my click event on the image that is supposed to rotate it and apply perspective just makes the img disappear entirely or almost just off the page.

Not sure what I'm doing wrong here.

        Dim rotateX = Matrix3DFactory.CreateRotationX(MathHelper.ToRadians(30))
        Dim rotateZ = Matrix3DFactory.CreateRotationZ(MathHelper.ToRadians(30))
        Dim centerAtOrigin = Matrix3DFactory.CreateTranslation(-img.ActualWidth * 0.5, -img.ActualHeight * 0.5, 0)
        Dim world = centerAtOrigin * rotateX * rotateZ
        Dim aspectRatio = MyViewPort.Width / MyViewPort.Height
        Dim projection = Matrix3DFactory.CreatePerspectiveFieldOfViewLH(MathHelper.ToRadians(45), aspectRatio, 1, 4000)
        Dim viewport = Matrix3DFactory.CreateViewportTransformation(MyViewPort.Width, MyViewPort.Height)
        Dim viewProjection = Matrix3DFactory.CreateViewportProjection(world, Matrix3D.Identity, projection, viewport)
        img.Projection = New Matrix3DProjection() With {.ProjectionMatrix = viewProjection}

Any ideas?

New Post: Project is dead?

teichgraf — Mon, 21 Mar 2011 09:11:00 GMT

Could work. Something like the GPU parallel pipeline does. I don't know if the overhead doesn't outweigh the benefits of the parallel chaining. If we're talking about a lot transformations this could work nicely.

New Post: Project is dead?

F0rc0sigan — Mon, 21 Mar 2011 08:55:47 GMT

But what about such thing: you can create a workitem where you will save the list of transformation. And when it loaded, workitem begin working in thread.

New Post: Project is dead?

teichgraf — Sun, 20 Mar 2011 19:47:48 GMT

Yeah,

F# is cool. Never had time to look into it. Would make sense to write a math lib in F#.

Multithreading doesn't make much sense since it only handles one item and not vectors. SSE would make a lot of sense if it was available in SL. Unfortunately it isn't.

New Post: Project is dead?

F0rc0sigan — Sun, 20 Mar 2011 19:34:14 GMT

Hi,

Maybe to rewrite all code of library to Fsharp and to make calculation works in threads. I think it will increase speed of calculation. Fsharp is better choise for math calc.

Dima

New Post: Project is dead?

teichgraf — Sat, 19 Mar 2011 20:20:44 GMT

Thanks for your offer.

It's not dead, but it's actually feature complete. :) And with Silverlight 5 announced 3D API there's probably no need for this project anymore.

What do you have in mind?

- Rene Schulte

New Post: Project is dead?

F0rc0sigan — Sat, 19 Mar 2011 19:43:00 GMT

Hi all,

I am wondering will this project continue developed? I want to help developing this good project.

Thanks,

Dima.

New Post: Transforming projection based on mouse position

teichgraf — Fri, 15 Oct 2010 20:33:09 GMT

You don't need 3D for this. It would be easier to use a 2D TransformGroup for this task:
http://msdn.microsoft.com/en-us/library/system.windows.media.transformgroup(v=VS.95).aspx

It's basically a RotateTransform and TranslateTranform. You should find a bunch only if you search for it.

New Post: Transforming projection based on mouse position

kukulcanenator — Fri, 15 Oct 2010 14:50:51 GMT

Hi I found this project today and its looking good!

I just wondered if there are any extension methods or factory methods that would allow you to zoom into a UIElement based on the position of the mouse and the scroll wheel, lets say there was a UIElement with an image on it and you moved the mouse to around the top left corner and scrolled the mouse wheel forward, the image would be zoomed and centred to the mouse position, would this be fairly easy to do?

Cheers

Dave.

New Post: Rotating camera 360º?

teichgraf — Sun, 30 May 2010 11:18:23 GMT

Hi Andrew,

Thanks for the nice words. I'm always interested in new applications. Is your app live somewhere?

0 - 360° should be possible . It depends on how you compute the rotation. Keep in mind that you can also try -180° - 180° instead.

If you combine multiple rotation axes you could have run into the Gimbal lock. This is a nice explanation of the Gimbal lock in 3D. One well known solution in computer graphics is to avoid Euler rotation matrices and to use Quaternions instead. A Quaternion can be transformed into a rotations matrix.

New Post: Rotating camera 360º?

AndrewAu — Sat, 29 May 2010 08:18:28 GMT

This project is absolutely amazing. I'm inspired to make my own little application using this library.

I have one question though, is it possible to allow the camera rotate more than 180 degrees? I notice that CameraX/CameraY and CameraLookAtX/CameraLookAtY will diminish up until 180 degrees. If I want to create a full 360º, will that be possible?