wpffx Discussions Rss Feed

New Post: Can I use the ColorAlphaKeyEffect to ignore green pixels instead of black?

afewremarks — Sun, 21 Apr 2013 19:00:00 GMT

I know it's been along time but just in case anyone else runs across this:
http://stackoverflow.com/questions/5200851/green-screen-in-wpf

New Post: How connect WPFSLFx to WPF, visual Studio 2012?

Domenick — Sat, 23 Feb 2013 05:21:23 GMT

I can not connect the WPFSLFx library to WPF, Visual Studio 2012. Help me please.

New Post: Pixelate an image

DSilvassl — Sat, 15 Dec 2012 15:15:49 GMT

I intend to Pixelate an image in an application c# + xaml for Windows 8 (windows store app) What is the best way to do this?

Appreciate any thoughts!

New Post: Solution does not build

djfr — Fri, 23 Nov 2012 17:08:12 GMT

I had a similar issue, because I'm using parts of this project in a Visual Studio 2012 DSL WPF editor.

What I did was created a VS2012 Windows Store C++ Static Library project, cleaned all the default template files, added the shader files (.fx), setup the HLSL compiler to properly compile them, and that project's build will compile all the shaders with the latest HLSL compiler.

My project isn't added to the Build Server, but I don't predict any major issues (besides all the problems that getting T4 transforms in a Build Server have!) when it gets added to our Build Server.

Cheers,

David

New Post: Solution does not build

Dlloyd — Fri, 07 Sep 2012 14:10:18 GMT

I have just moved a build that uses Shader Effects Build Task to a TFS 2012 build server. I am getting the problem above.

The "ShaderBuildTask.PixelShaderCompile" task could not be loaded from the assembly ShaderBuildTask, Version=1.0.3072.18169, Culture=neutral, PublicKeyToken=44e467d1687af125. Could not load file or assembly 'ShaderBuildTask, Version=1.0.3072.18169, Culture=neutral, PublicKeyToken=44e467d1687af125' or one of its dependencies. The system cannot find the file specified. Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.

I have installed the Shader Effects BuildTask, The dll is in the Gac. I have tried both of the following UsingTask Statements

Anyone know what I am missing or what I need to do to get this to work?

Dave

New Post: support for Microsoft Coded UI testing

deblloyd — Wed, 04 Jul 2012 19:39:35 GMT

Hello,

We are using your

ShaderEffectLibrary.dll Version: 1.0.0.0

Can you tell me whether your controls support Microsoft Coded UI testing?

See more info at:

http://www.edsquared.com/2011/02/01/ThirdParty+Support+For+Visual+Studio+Coded+UI+Testing.aspx

Thanks,

Debra

New Post: Hope the VS2010 version

schungx — Wed, 19 Oct 2011 02:16:29 GMT

Well the WPF one can -- look in the patches section. I don't do SL so not sure about the SL one.

New Post: Hope the VS2010 version

teng_s2000 — Wed, 19 Oct 2011 01:20:13 GMT

Now the library could not compile under VS2010 environment, hope to upgrade the new version.

New Post: Can I use the ColorAlphaKeyEffect to ignore green pixels instead of black?

uncarlo — Sat, 05 Mar 2011 02:42:53 GMT

I'm using the following code, and it works all right with black pixels:

ColorKeyAlphaEffect effect = new ColorKeyAlphaEffect();

Brush brush = Effect.ImplicitInput;
			
effect.Input = brush;

media.Effect = effect;

But what I really want to do is do a green screen of the movie in the MediaElement control. The movie has a lot of black, so the effect applying to black pixels doesn't work for us.

Is it possible to change it to green or any other color?

Thanks.

New Post: Silverlight version of library fails at compile-time

erwinwolff — Thu, 24 Feb 2011 19:45:49 GMT

Never mind. I created a new silverlight FX demo application. Here:

http://www.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=wpffx&DownloadId=211285

Short FAQ:

Q. What's different?

A. Everything. For starters, this application doesn't use all kinds of wierd SDK toolkits. It's much cleaner.

Q. What works and what doesn't?

A. Some shader and some transitions are disabled because I didn't got them to work. But 80% of them work pretty well.

New Post: having the message "An unspecified error occurred on the render thread." when i using the effect

GeertvanHorrik — Tue, 22 Feb 2011 08:23:04 GMT

First of all, try to subscribe to the PixelShader.InvalidPixelShaderEncountered so your software doesn't crash on that one. Catel has a ShaderEffectBase class which you can use as an example:

http://catel.codeplex.com/SourceControl/changeset/view/62553#1081399

Next, you should set the rendering of the pixelshader to SoftwareOnly (also a feature of the ShaderEffectBase). If that doesn't work, the only thing you can do is to force software rendering in the registry for WPF. Search for it on google and you will find how to do it.

New Post: having the message "An unspecified error occurred on the render thread." when i using the effect

yahavho — Tue, 22 Feb 2011 06:23:56 GMT

thanks but, i tried for more then 10 diffrent computer and it happen all of them
tried also framework 3.5 sp1, framework 4.0
same result

i using the Transitions effect with using the control from "WPF Win32 Interop Render Control" Project

Please anyone need Help ASAP...

New Post: Silverlight version of library fails at compile-time

erwinwolff — Sat, 19 Feb 2011 18:57:40 GMT

Hi,

I've trouble running this in Visual Studio 2010. I've already installed the Silverlight 3 toolkit and the WPF library and sample application are running fine.

The point is however that the Silverlight version of it fails on compile-time when I try to build it on this code:

MainPage.xaml.cs

WriteableBitmap current = new WriteableBitmap((int)this.EffectsPlaceHolder.ActualWidth, (int)this.EffectsPlaceHolder.ActualHeight, PixelFormats.Bgr32);
current.Render(this.EffectsPlaceHolder, new MatrixTransform());
 
ImageBrush currentBrush = new ImageBrush();
currentBrush.ImageSource = current;
BloodTransitionEffect bloodEffect = new BloodTransitionEffect();

and

WriteableBitmap current = new WriteableBitmap((int)this.TransitionsPlaceHolder.ActualWidth, (int)this.TransitionsPlaceHolder.ActualHeight,  PixelFormats.Bgr32);
current.Render(this.TransitionsPlaceHolder, new MatrixTransform());
 
ImageBrush currentBrush = new ImageBrush();
currentBrush.ImageSource = current;

With the error

Error    3    The name 'PixelFormats' does not exist in the current context    D:\csharp\WPFSLFx\SL\Demo_silverlight\SLEffectHarness\MainPage.xaml.cs    57    148    SLEffectHarness

Anyone has any idea on how to tackle this issue?

Thank you for your assistance.

New Post: Binding in c#

mykullski — Wed, 26 Jan 2011 21:05:55 GMT

I want to change the effect of an image on the fly, but i need to be able to bind the properties of an effect in c# any ideas how to do the following in c#:

                    <shaders:ColorSharpFilter x:Name="CameraFilter"
                                             MinLvl="{Binding ElementName=CameraControlControl, Path=MinimumColor}"
                                             MaxLvl="{Binding ElementName=CameraControlControl, Path=MaximumColor}"
                                             NewColor="{Binding ElementName=CameraControlControl, Path=NewColor}"
                                             Inclusive="1" Amount="10.0" Width="0.0001"/>

Thanks

New Post: Clouds Image

songsongsong — Tue, 04 Jan 2011 06:11:17 GMT

This code is awesomeee, thank you! :)

New Post: Get Pixel values after applying pixel shader

munishsaini — Thu, 25 Nov 2010 15:20:01 GMT

Hi,

Is it possible to retrieve maximum and minimum pixel values in the image after the contrast adjust effect has been applied to an image. e.g., I apply a brightness and contrast change to the image but I do not know how to find a value for the minimum and maximum pixel values in the image.

Is there a HLSL code somebody can provide to solve this problem. I do not want to iterate though all the pixels in the image to find this value.

Regards,

Programmer

New Post: having the message "An unspecified error occurred on the render thread." when i using the effect

GeertvanHorrik — Wed, 13 Oct 2010 10:12:27 GMT

It's because the video driver doesn't support pixel shader 2.0.

We have this as well, and searching for a solution.

New Post: having the message "An unspecified error occurred on the render thread." when i using the effect

yahavho — Wed, 11 Aug 2010 18:50:07 GMT

when i using the control in my software
and i getting the message "An unspecified error occurred on the render thread."
it happen in two defrent situations
1. i using effect with with the transitions together and it happen
2. i using the control from "WPF Win32 Interop Render Control" for doing effect on browser putting the effect and then it happen as well
it happen Intermittent maybe becouse i create and destoried the control again and again?

is there way to fix this bug OR at least a way to that the program will handle this exception??????

thanks,
Liav

StactTrace is
"at System.Windows.Media.MediaContext.NotifyPartitionIsZombie(Int32 failureCode)\r\n
at System.Windows.Media.MediaContext.NotifyChannelMessage()\r\n
at System.Windows.Interop.HwndTarget.HandleMessage(Int32 msg, IntPtr wparam, IntPtr lparam)\r\n
at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)\r\n
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)\r\n
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)\r\n
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)\r\n
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)\r\n
at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)\r\n
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)\r\n
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)\r\n
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)\r\n
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)\r\n
at System.Windows.Threading.Dispatcher.Run()\r\n
at System.Windows.Application.RunDispatcher(Object ignore)\r\n
at System.Windows.Application.RunInternal(Window window)\r\n
at System.Windows.Application.Run(Window window)\r\n
at System.Windows.Application.Run()\r\n   at test.App.Main() in D:\\Users\\Coder\\Documents\\Visual Studio 2008\\Projects\\test\\obj\\Release\\App.g.cs:line 0\r\n
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)\r\n
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)\r\n
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()\r\n
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)\r\n
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)\r\n
at System.Threading.ThreadHelper.ThreadStart()"

targetsite is "{Void NotifyPartitionIsZombie(Int32)}"

declartion type = {Name = "MediaContext" FullName = "System.Windows.Media.MediaContext"}

New Post: Compiled Release

AndrewB — Tue, 03 Aug 2010 17:08:00 GMT

Agreed - this library might meet some of my requirements, but downloading the DirectX SDK just to evaluate it makes it much less attractive.

New Post: VS2010 .Net 4.0 Build

schungx — Wed, 28 Jul 2010 04:51:12 GMT

I have it working in VS2010 and .NET 4.0 for quite a while, but I've only compiled the WPF portion (not working with SL for the moment).

I'll zip up the WPF parts and post as a patch.

Those in need can also email me: stephen.chung@intexact.com

-Stephen