Hello, I'm thinking of implementing 3D capabilities to my software. My aim is to include some modelling and simple animations. I've downloaded the examples and they are working really slow (slow rotations, zoom, etc; even with simple geometries) and my computer has VERY high specs. I don't understand why this is happening, is because of WPF or is a flaw of Helix?
Thanks.
P.D.: I wanted to use this library because I've used OxyPlot in the same application and it works marvelously.

What about your videocard?

Latest drivers, outstanding performance in all games: Gigabyte GeForce GTX 670 OC WF2 2GB GDDR5

Other components:
i7-3820 (10MB Cache), 16GB DDR3 RAM, 250GB SDD SATA3

Here is a video showing the lag. Is this normal or something is wrong?

http://www.youtube.com/watch?v=U0nASDcXJoY&feature=youtu.be

For the car contour example I don't experience lag. In the video you posted I don't see too much problems either with the car contour example. In the second example, the background worker example I can confirm having more or less of the same lag (with my pc having lower specs compared to yours). But in the case of the background worker example my cpu usage is constantly 80 %. I guess this example does not exactly count for a simple geometry because it is constantly recreating countless ModelVisual3D objects. Is zooming and rotating also slow for the rest of the examples?

I have not seen much lag in the contour example on my hardware (much lower specs than yours).
Are you rotating with touch or mouse gestures?

1. Do you see this lag in other WPF3D applications? Try https://3dmoleculeviewer.codeplex.com/
2. Have you tried to run the example applications outside Visual Studio?

hi to all
I open my 3d model created by 3dmax in helixviewport3d all thing good but the lighting is high.

how I can low it?

my original model photo
http://www.uploadax.com/images/12976526694693013660.png

my 3dmax model
http://www.uploadax.com/images/36200050022924773294.png

helixviewport3d
http://www.uploadax.com/images/55643347555770947663.png

best regards

is this a problem with the 3ds loader or with the light setup of your scene?

I am trying to improve the speed of my viewport (containing around 100 models) and I cannot figure out why the processor spikes when I am moving the mouse over the viewport.
https://www.youtube.com/watch?v=QysWHudOvdQ

I would like to be able to add more 3D models to my viewport and I am looking for a way of reducing the CPU load. Is there some functionality which can be "sacrificed" to get better performance?

Thanks,
Blanka

WPF might be doing hit-testing while you move the mouse. There is some way to disable this, and then only do hist testing when you need to, or on a timer. See: http://blogs.msdn.com/b/wpf3d/archive/2009/05/18/3d-hit-testing.aspx

-Govert

Hello!

I downloaded the SharpDX fork and launched HelixToolkit.SharpDX.Wpf_NET40.sln

But when I compile, I receive these errors:

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\HelixToolkit.SharpDX.Wpf\HelixToolkit.SharpDX.Wpf_NET40.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\HelixToolkit.SharpDX.Wpf\HelixToolkit.SharpDX.Wpf_NET40.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\SimpleDemo\SimpleDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\SimpleDemo\SimpleDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\LightingDemo.SharpDX\LightingDemo.SharpDX.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\LightingDemo.SharpDX\LightingDemo.SharpDX.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\EnvironmentMapDemo\EnvironmentMapDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\EnvironmentMapDemo\EnvironmentMapDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\LineShadingDemo\LineShadingDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\LineShadingDemo\LineShadingDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\TemplateDemo\TemplateDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\TemplateDemo\TemplateDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ManipulatorDemo\ManipulatorDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ManipulatorDemo\ManipulatorDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\InstancingDemo\InstancingDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\InstancingDemo\InstancingDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ShadowMapDemo\ShadowMapDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ShadowMapDemo\ShadowMapDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\DeferredShadingDemo\DeferredShadingDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\DeferredShadingDemo\DeferredShadingDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ImageViewDemo\ImageViewDemo.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Examples\SharpDX.Wpf\ImageViewDemo\ImageViewDemo.csproj

E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\HelixToolkit.SharpDX.Wpf\HelixToolkit.SharpDX.Wpf_NET40.csproj : error : The imported project "E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita\PepitaGet.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. E:\helixtoolkit\forks_objo_sharpdx_f924bc5e5a58\Source\HelixToolkit.SharpDX.Wpf\HelixToolkit.SharpDX.Wpf_NET40.csproj

I think I'm missing PepitaGet.Targets... where can I get it?

Thanks in advance!

It seems like the build in the sharpdx fork is broken at the moment.
(I think there is a .. missing in the path for the pepitaget target. There may also be a problem with the weaving task target.)

Yes, its broken, there are Pepita and Weaver missing in the right place. I can't push at the moment due to several re-factoring reasons. Just copy the folder

from

..\forks_objo_sharpdx_f924bc5e5a58\Tools\NotifyPropertyWeaver
..\forks_objo_sharpdx_f924bc5e5a58\Tools\NuGet
..\forks_objo_sharpdx_f924bc5e5a58\Tools\Pepita

to

..\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\NotifyPropertyWeaver
..\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\NuGet
..\forks_objo_sharpdx_f924bc5e5a58\Source\Tools\Pepita

that should to it for the moment.

thank you very much!

It did compile like a charm!

I only received these warning, but i suppose you ust know it :)

D:\helix\forks_objo_sharpdx_f924bc5e5a58\Source\HelixToolkit.SharpDX.Wpf\Controls\ViewportExtensions.cs(368,24,368,29): warning CS0618: 'HelixToolkit.SharpDX.Wpf.Ray3D' is obsolete: 'We do not need own structures, since SharpDX does it all for us.'

The zip file is VB2010. Im using the express edition.

My mail server was flagging the zip file for having executables in them ... so I renamed the .zip file to .jpg

Just rename and unzip .....

Have fun!

On Sun, Dec 23, 2012 at 11:43 AM, killtherisk <notifications@codeplex.com> wrote:

From: killtherisk

hi,

i'm interested too into VB examples.

Where can i find your VB2010.jpg file?

thanks in advance

rocheey wrote:
Sure.... I put it aside for a little while, cause of one bug I ran into... but plan on getting back into this project soon.

The zip file is VB2010. Im using the express edition.

My mail server was flagging the zip file for having executables in them ... so I renamed the .zip file to .jpg

Just rename and unzip .....

Have fun!

Read the full discussion online.

To add a post to this discussion, reply to this email (helixToolkit@discussions.codeplex.com)

To start a new discussion for this project, email helixToolkit@discussions.codeplex.com

You are receiving this email because you subscribed to this discussion on CodePlex. You can unsubscribe on CodePlex.com.

Please note: Images and attachments will be removed from emails. Any posts to this discussion will also be available online at CodePlex.com

Hi
Anyone able to post rocheey's VB source somewhere we can download it? It would be invaluable for me as I'm struggling to get Helix working at all in VB......

Thanks

hey, this is rocheey. Im on my way out the door at work, but will send it your way monday morning (I'm east coast USA)

In my Model I have N number of pipes attached one after other. Model is in CuttingPlaneGroup. All pipes are of same width, but of different length and drawn in an angle - i.e. all may not be in a straight line vertically. When I apply the cuttingPlane, I want all pipes to be cut from middle into halfs' vertically. MY cuttingPlane code is :

                <helix:CuttingPlaneGroup x:Name="cuttingGroup1">
                    <helix:CuttingPlaneGroup.CuttingPlanes>
                        <helix:Plane3D Normal="1,0,4" />                        
                    </helix:CuttingPlaneGroup.CuttingPlanes>
                    
                    <ModelVisual3D x:Name="model"  >
                    </ModelVisual3D>
            </helix:CuttingPlaneGroup>

With above code, 1st pipe cuts properly, but then other pipes are not cut properly from center and possibly last pipe may not be cut at all. The below image shows the output result of the code and what I am trying to explain :
https://drive.google.com/file/d/0B60M7Kj_SwHZS2ZFTXVqNHhoMGc/edit?usp=sharing



Can anyone help me know, how can I make all pipes cut from center. In the above case, their are 4 pipes, do I need to add 4 CuttingPlanes in the group ? If so, then how do I specify the x, y and the angle in which it has to cut ?

I searched a lot for the above problem on net, but couldn't find any solution or way for the same. Can you please help or guide me know how can I achieve what I am looking for ? I believe it should be possible, just that don't know how !!!

Any help is highly appreciated. Thanks.

This may be a bug or limitation in the CuttingPlaneGroup element. Can you create a simple example that we can use to debug? This should probably be added to the issues list.

Hi everyone!

I'm looking for a 3D visualization library for WPF that provides a high-level API (at least higher-level than Vertex Buffers and shaders). I'm considering HelixToolkit.Wpf.SharpDX at the moment and absolutely impressed with what it does and how flawlessly it integrates with WPF/MVVM. I have 2 questions to clarify:

1. As of today, is it possible to somehow disable antialiasing completely? I've checked the code and it looks like there's no way to configure it: there's logic that dynamically decides whether or not to enable it.
   
2. I also see that there's a render loop - even if there are no changes to the scene, everything gets redrawn. Is it possible to somehow disable this behavior and instead trigger updates manually?
   

andyag,

Regarding 1:
In the current sharpdx version you can disable anti-aliasing by removing the conditional compilation symbol MSAA prior to compiling the code. This applies to the forward renderer, if you want to disable anti-aliasing for the deferred renderer remove the symbol DEFERRED_MSAA. You will find the symbols by right-click on the HelixToolkit.Wpf.SharpDX project->properies->build->general.

Regarding 2: this is a direct3d renderer, there is a render loop, which cannot be removed.

p.1 - Yes, I've checked the code. Unfortunately, maintaining a custom set of binaries is not an option for me.
p.2 - Direct3D doesn't require a render loop. Even though it's a common approach in games (where things happen quite often), there's a bunch of scenarios when you only need to update the picture on demand.

Well, I guess, I didn't made my point clear enough: this is a real-time rendering framework which is meant to work like a game as you said. There is no option to call the update manually, and such an option is not planned. However, basically you are right, one might trigger the update in D3D on demand. The framework uses D3DImage class to display the content, where the update frequency is bound to the CompositionTarget.Rendering event. You are free to modify it in order to fit your needs.

I think the original idea was to create a solution that mimcs the WPF 3D scene graph as much as possible (supporting data binding and animations), but also making it possible to use shaders by SharpDX. Isn't the rendering loop just a shortcut we made to avoid keeping track of all changes and invalidating the model? I think it would be great if we could handle the invalidation and update only when the model has changed. Maybe a first step could be to add a flag to enable/disable the render loop and provide an Invalidate method? In that case the client application should be responsible for the invalidation.

Regarding the conditional compilation - can we get rid of this? Could it be possible to change the anti-aliasing at runtime?

Render loop is indeed just a shortcut. The 2 options I can think of are:

1. As objo said, just make it possible to disable automatic updates and provide a method to trigger updates manually.
2. Keep render loop, but add extra logic to only have it running as long as there are view model updates. The easiest would be just to enable the loop when view model is updated and then keep it running for next N (=1) seconds. If there are more updates while loop is enabled, keep it running for N more seconds. Then, after first N seconds without view model updates, stop the loop.
   

I can barely imagine someone trying to build a game with Helix 3D. It's just not what Helix 3D is good at. Instead, it's AMAZING for things like lightweight WPF-based CAD. In my case, I have an app with about 30 pages where on each page I show a single static geometry. The 2 cases when I need to render the scene are when user wants to switch to another page (happens about once per minute) and when user moves the camera (like few 5-second manipulations per minute when I actually need a decent frame rate).