Matrix3DEx

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

Source code checked in, #70298

Project Collection Service Accounts — Mon, 01 Oct 2012 21:36:45 GMT

Upgrade: New Version of LabDefaultTemplate.xaml. To upgrade your build definitions, please visit the following link: http://go.microsoft.com/fwlink/?LinkId=254563

Source code checked in, #70297

Project Collection Service Accounts — Mon, 01 Oct 2012 21:31:58 GMT

Checked in by server upgrade

Source code checked in, #62469

teichgraf — Tue, 24 May 2011 20:40:49 GMT

* Added a Windows Phone 7.1 Mango project and solution

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.

Updated Wiki: Home

teichgraf — Thu, 17 Feb 2011 21:55:54 GMT

Description

The Matrix3DEx library is a collection of extension and factory methods for Silverlight's Matrix3D struct. The Matrix3D struct represents a 4x4 matrix that is used in combination with the Matrix3DProjection to apply more complex semi-3D scenarios to any UIElement than are possible with the simple PlaneProjection. This makes it possible to apply arbitrary model transformation matrices and perspective matrices to Silverlight elements. So it supports affine and non-affine transformations.
The Matrix3D struct is very minimalistic and has only a few members. The Matrix3DEx library tries to compensate that with extension and factory methods for common transformation matrices that are easy to use like built in methods.

Features

Factory methods (Matrix3DFactory class)
- Translation, scaling and rotation around x, y, z or any defined axis
- Perspective field of view and orthographic projection
- Camera (look-at) with position, target and up vector
- Support for left-handed and right-handed coordination systems
Extension methods
- Calculation of the matrix' determinant
- Matrix transpose
- SwapHandedness to change from right-handed to left-handed coordination system and vice versa
- Dump of the values row by row into a formatted string
Math helper methods (MathHelper class)
- Angle conversion from degrees to radians and vice versa

Live samples

Samples that come with the Matrix3DEx source code in action:
The Basic Sample loads some photos asynchronously and randomizes the position vector of each one. The sample uses most of the Matrix3DEx features and has some Sliders and CheckBoxes to change the parameters. Uncheck the "Animate" CheckBox to disable the camera movement and click on an Image to select it. The translation, scaling and the rotation matrices of the selected element can be changed with the corresponding Sliders. You can move the camera, change the target and the "Field Of View" with the other Sliders or fix the camera target at the selected element.

Great games

Dan Birch of vectorlight.net developed two great games using Matrix3DEx (see the screenshots above).
Cubemania is a great and highly addictive rigid body physics game.
Go Go Racer! is a nice 2.5D racing game.

Easy to use!

// Create transformations

// Translate by x = 5, y = 4, z = -10
var translate = Matrix3DFactory.CreateTranslation(5, 4, -10);         

// Rotate 30° around x-axis
var rotateX = Matrix3DFactory.CreateRotationX(MathHelper.ToRadians(30));

// Double the size on x-axis, invert y and don't change z
var scale = Matrix3DFactory.CreateScale(2, -1, 1);

// Left-handed camera at the position x = 0, y = 5, z = 0 that looks to the negative z direction (z = -1)
var lookAt = Matrix3DFactory.CreateLookAtLH(0, 5, 0, 0, 0, -1);

// Left-handed perspective projection with a 45° field of view, a near view plane at 1 and a far view plane at 4000
var aspectRatio = myCanvas.Width / myCanvas.Height;
var projection = Matrix3DFactory.CreatePerspectiveFieldOfViewLH(MathHelper.ToRadians(45), aspectRatio, 1, 4000);

// Viewport transformation
var viewport = Matrix3DFactory.CreateViewportTransformation(myCanvas.Width, myCanvas.Height);


// Combine transformations
var world = scale * rotateX * translate;
var viewProjection = Matrix3DFactory.CreateViewportProjection(world, lookAt, projection, viewport);


// Apply transformation to UIElement
myImageControl.Projection = new Matrix3DProjection { ProjectionMatrix = viewProjection };


// Trace final matrix
myTextBlock.Text = viewProjection.Dump();

Additional Information

Matrix3DEx 1.0 - When PlaneProjection is not enough announced this project and provides some further information.

Support it

Credits

René Schule coder and coordinator of this project.