ddklo wrote at 2011-03-21 19:10:

Hi.

When I change the camera from a projection camera to a orthographic camera by setting the Orthographic property (after Loaded) on the HelixView3D camera movement is no longer possible. Am I missing something or is this a bug?

Regards

Dagfin

ddklo wrote at 2011-04-11 15:10:

Hi.

This issue seemed to be that the Camera property on the CameraController wasn't updated. When I set this manual camera movement works fine. It would be great if this could be the default behavior when changing the Orthographic property, for instance in OnOrthographicChanged in the HelixView3D class.

Regards Dagfinn

objo wrote at 2011-04-12 11:58:

hi Dagfinn, I just changed the CameraController to allow the HelixView3D to change camera. Thanks for the bug report!

DongMini wrote at 2012-08-22 10:02:

Tearing zoom or rotation of the shape.

Why is that?

Is there anyone able to help me?

objo wrote at 2012-08-24 09:47:

Sorry, I don't understand what you mean here. The figure is also missing.

DongMini wrote at 2012-08-24 11:00:

Zoom and Rotation, Capturer the shape of the screen is showing cracks

 Left Image

- HelixViewport3D                 windows screencapturer

Right Image

- Viewprt3DHelper.Export(HelixViewport3D.Viewport, "d:\sample.png", null);

  capturer image                     sample.png

Sample Image url = http://blog.naver.com/web_mini/50148576494

murray_b wrote at 2012-08-28 03:52:

I thought I would add that I get this problem as well.

It happens a lot for me when zooming into a screen of multiple meshes.

I am very interested to see if you can find a solution

objo wrote at 2012-08-28 06:49:

try to reduce the distance between the near and far plane of your camera. This will increase the accuracy of the z-buffer.

http://msdn.microsoft.com/en-us/library/system.windows.media.media3d.projectioncamera.nearplanedistance.aspx
http://msdn.microsoft.com/en-us/library/system.windows.media.media3d.projectioncamera.farplanedistance.aspx
http://en.wikipedia.org/wiki/Z-buffering
http://www.sjbaker.org/steve/omniv/love_your_z_buffer.html 

votecoffee wrote at 2014-02-26 02:25:

lightxx wrote at 2013-02-26 13:16:

balameeta wrote at 2013-03-25 08:54:

RenderOptions.BitmapScalingMode="HighQuality" RenderOptions.EdgeMode="Aliased"

        <ht:HelixViewport3D x:Name="viewPort"  CameraMode="FixedPosition" RenderOptions.BitmapScalingMode="HighQuality" RenderOptions.EdgeMode="Aliased">
            <ModelVisual3D>
                <ModelVisual3D.Content>
                    <AmbientLight Color="White"/>
                </ModelVisual3D.Content>
            </ModelVisual3D>

            <ht:PanoramaCube3D Source="Models\GrandHotel\"  >
                
            </ht:PanoramaCube3D>
        </ht:HelixViewport3D>

lightxx wrote at 2013-03-25 08:58:

balameeta wrote at 2013-03-25 10:06:

SeanV12 wrote at 2013-06-06 22:46:

objo wrote at 2013-06-07 12:10:

SeanV12 wrote at 2013-06-08 16:15:

SeanV12 wrote at 2013-06-18 00:22:

objo wrote at 2013-06-18 22:05:

SeanV12 wrote at 2013-06-19 20:37:

Aybe wrote at 2013-09-14 19:00:

objo wrote at 2013-09-25 09:11:

Aybe wrote at 2013-09-25 16:37:

mpolitis wrote at 2011-10-16 06:06:

How can i make printings of an Helix viewport, passing the visual tree to the PrintVisual method of the PrintDialogPrintDialog class ? Or with any method you preconize ? Thank's a lot for your impressive toolkit. Michel.

objo wrote at 2011-10-16 20:26:

hi Michel,

yes, printing should be very easy - use the PrintDialog and PrintVisual.

I just tested the following code in ExportDemo:

        private void Print_Click(object sender, RoutedEventArgs e)
        {
            var dlg = new PrintDialog();
            if (dlg.ShowDialog().GetValueOrDefault())
            {
                dlg.PrintVisual(view1.Viewport, this.Title);
            }
        }

where view1 is the HelixViewport3D control.

ps. You could also export the Viewport3D to a bitmap at higher resolution and add this image to your print document.

mpolitis wrote at 2011-10-17 05:35:

Wonderfuf Objo ! i have implemented your solution to the AudioDemo sample that i'm transforming to produce Business Intelligence 3D visualization ! I will give you later some feedback with sample outputs ! Kind regards. Michel.

objo wrote at 2011-10-17 10:08:

cool, send some sample outputs, it is interesting to see how the library is being used!

jpg99 wrote at 2012-08-15 16:19:

hello,

i use your class StudioReader to import 3ds files. Most of the time the result is very good, but at several occasions i encountered files that were incorrectly imported.

I don't have 3d studio max, i use the freeware 3D Object Converter to test the 3ds files. And i use your sample application, 3D model viewer, to see 'your' version of the file.

I import house models from the site archive3d.net . It's all free and i know that quality is not guaranteed. For example when reading http://archive3d.net/?a=download&id=599a4f07 , 3D Object Converter warns that 40 bad polygons were found. And indeed when viewing the result there are clearly errors

But in some cases the 3ds file is correctly displayed in 3D Object Converter, but not in your 3D model viewer : http://archive3d.net/?a=download&id=e190fe70

objo wrote at 2012-08-24 09:51:

Thanks for the links, I have added the following issue http://helixtoolkit.codeplex.com/workitem/9965

mcab21 wrote at 2014-02-04 16:26:

icube wrote at 2011-06-21 15:16:

Hi,

Looking at the TerrainDemo project, it uses a .btz file. How can i create such a file? Can't really find anything on google regarding this...

And also, could you do a MultiTouchDemo that uses multi touch input to navigate the HelixView3D.

Thanks for this awesome project.

Regards

objo wrote at 2011-06-22 10:18:

.btz is just a gzip compressed .bt file (binary terrain file). It is only used inside Helix toolkit to reduce the size of the .bt files. You can use GZipStream to compress a .bt file, and the TerrainModel class should be able to read it. You find the TerrainModel class in Visual3Ds/Composite/TerrainVisual3D.cs

Note that this class does not implement a level of detail algorithm, so it is only useful for small models. (You can find LOD implementations on http://www.vterrain.org/)

For documentation on .bt files, see http://www.vterrain.org/Implementation/Formats/BT.html

A multi-touch demo would be very interesting, but I don't have any hardware to test it on myself!