Wpf 3d viewer

These days, the API supports real-time ray tracing of this scene rather than the more primitive ray-casting being done in older software viewers. Upon loading the SimpleCube demo from Microsoft, however, I was horrified at the rendering speed of even the most basic 3-D scene.

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I have been reading the blogs and the limited posts on this issue and am finding it hard to understand the gap in technology. All the retained vs. What is the problem here? Clearly, WPF is the bottleneck here, not the graphics card or the settings. From what I can see, there is no hardware optimization occurring whatsoever. Is WPF3D a real technology? Or, is it a toy? If you were thinking about WPF 3D for high realism, complex real time graphics scenarios, that would be a bit of a stretch.

By the sounds of it, your application code already operates at this level of abstraction. Some scenarios include:. The demo was called "CubeAnimation" which is simply a cube made up from smaller square patches. I am running this on a Dell Inspiron norebook. Your comments are greatly appreciated. Have you ever had to create complex, programmable 3D scenes with OpenGL?

The scene-based approach is far more intuitive and lends itself to an Obeject Oriented development approach much better than OpenGL or DirectX. What was interesting about WPF3D was that we could use the same pardigm as was being used in any number of scene-graph viewers that have been available for about a decade. They are ridiculously hard to program to directly.

I am not saying that it can't be done, just that one would rather do it using a scene-based toolkit that creates the scene as a linked-list of scene-objects and passes that to a low-level rendering pipeline like DirectX or OpenGL. You wrote: "If you were thinking about WPF3D for high realism, complex real-time grapics scenarios, that would be a bit of a strech" Why the trade-off?

Why can't Microsoft do it also? Additionally, what importance is the security issue that you site for browser use?

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That seems far-removed from the issues of graphics performance and quality but unfortunately like so many of the comments I hear touting WPF and WPF3D. Scenarios for it's use are rich - the actual experience is poor.

I will not even bring up the failed Farenheight effort But again, Microsoft has failed us where so many have succeeded before.Introduction: In this article I will use the premise of creating a simple 3D scene a living room with two couches, a coffee table and a TV to cover: The basics of the scene: viewport, lights, floor and container for our furniture Hookup a virtual trackball so we can fully examine the scene Converting models from.

I found a wealth of information on the WPF 3D basics mostly using primitivesbut had an exceedingly difficult time with one key point: how do you take a model created by a 3D artist and use it in WPF? Back then we were using DirectX for our 3D and most of our models were in. Today, if you do a search on how to convert from. What's the difference?

A scene has a viewport, a camera, lights and one or more models. This is great if you want to create a 3D scene with just one 3D model. But what if you want to create a scene comprised of multiple 3D models?

You don't want each model to come with its own viewport, camera and lights.

wpf 3d viewer

And what if you want to use these models as a resource so you can have more than one in a scene? These are topics I will address in this article. Step 1: Create the project and setup the scene The first step is to create a project to host our scene.

There's nothing special in this example and this is well-treaded ground in terms of WPF tutorials. Once you've created the project we'll want to add the key elements of any WPF 3D scene: the viewport, the camera, and lights. Since this tutorial is more focused on the use of. I've included a directional light and a spot light to add some reflective flare to the overall scene. Since the scene we're creating will eventually be a living room, let's go ahead and create a primitive to represent our floor.

Creating a simple 3D scene in WPF. Mike Updated date, Mar 04 In this article I will use the premise of creating a simple 3D scene a living room with two couches, a coffee table and a TV to cover:. The basics of the scene: viewport, lights, floor and container for our furniture Hookup a virtual trackball so we can fully examine the scene Converting models from.

wpf 3d viewer

Two years ago we started looking into using WPF for a 3D component of our application. The first step is to create a project to host our scene.As you use the Windows Presentation Foundation WPF to build 3D controls and include 3D scenes in your applications, it is important to consider performance optimization.

This topic provides a list of 3D classes and properties that have performance implications for your application, along with recommendations for optimizing performance when you use them. The suggestions in this document apply to "rendering tier 2"—roughly defined as hardware that supports pixel shader version 2. For more details, see Graphics Rendering Tiers. Skip to main content.

Exit focus mode. Hit testing 3D content is done in software and can be slow with large meshes. To minimize the performance impact of change notifications when each vertex is modified, detach the mesh from the visual tree before performing per-vertex modification.

Once the mesh has been modified, reattach it to the visual tree. Also, try to minimize the size of meshes that will be animated in this way. By default, 3D antialiasing is enabled on Windows with 4 samples per pixel.

Try to use images of the text instead via RenderTargetBitmap unless the text will change. By default, DrawingBrush and VisualBrush are not cached, meaning that every time something painted with the brush has to be re-rendered, the entire content of the brush must first be re-rendered to an intermediate surface.

BitmapEffect BitmapEffect forces all affected content to be rendered without hardware acceleration. For best performance, do not use BitmapEffect.

Performance Impact: Medium Property Recommendation MeshGeometry3D When a mesh is defined as abutting triangles with shared vertices and those vertices have the same position, normal, and texture coordinates, define each shared vertex only once and then define your triangles by index with TriangleIndices.

Note that lower resolution textures can decrease visual quality, so try to find the right balance between quality and performance. Opacity When rendering translucent 3D content such as reflectionsuse the opacity properties on brushes or materials via Opacity or Color instead of creating a separate translucent Viewport3D by setting Viewport3D.

Opacity to a value less than 1. Put many 3D models in the same Viewport3D rather than creating separate Viewport3D instances for each model. Freezable Call the Freeze method on Freezables when their properties will remain unchanged in your application.

Freezing can decrease working set and increase speed. Consider omitting these from your scene. MaterialGroup Each Material in a MaterialGroup causes another rendering pass, so including many materials, even simple materials, can dramatically increase the fill demands on your GPU. Minimize the number of materials in your MaterialGroup. Light Minimize the number of lights in your scene.

Display 3D Model using Window Presentation Foundation

Light Minimize the number of times you change the number of lights in the scene. Each change of light count forces a shader regeneration and recompilation unless that configuration has existed previously and thus had its shader cached.I just like the architectural design of their components and the extensibility. At work, we use the Xceed Grid for. I was able to customize the Xceed Grid so much you probably can't even recognize it's an Xceed Grid anymore.

Great work. Thanks for the video, Adam! I don't want it to be like a commercial though, so any suggestions you have are welcome.

Thanks for sharing this quality information with us. I really enjoyed reading. Will surely going to share this URL with my friends. Sign in to subscribe An error occurred, please try again later Close.

Sep 26, at PM. Average of 5 out of 5 stars 5 ratings Sign in to rate Close. Sign in to queue Sorry, an error occurred. Upon hearing this some people Niners even are known to question "what is it good for? Watching Marc move the camera to adjust the display of the data around can give you an idea of where 3D can really be useful.

Simply adjusting the position of the camera offers a new perspective rendered dynamically. There is no need to pre-render all of the desired views. This is great stuff but it feels like just the beginning.

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The more accessible we can make 3D, the more we can become creative and effective with it. PS: I loved this video too. Very nice looking scroll view. Unfortunately the demo was a little lacking in that it was showcasing features like 'auto column stretch'. It's neat to see what you can do with WPF, but this video really feels like an ad for Xceed.

Most videos are an advert for something, and why not showcase something like this grid? Microsoft have a belated DataGridView for WPF in development now but you can tacitly assume that it will never compare with this one, just like the Silverlight grid has already lost out to the free Devexpress one. With prior WPF technologies, Microsoft always had some base controls, that were either augmented or redeveloped by companies like Xceed. Indeed their own winforms grid pales in insignificance to the Xceed one which Microsoft themselves use in their products even today.

wpf 3d viewer

This is a market leading component and deserves the credit it gets. These guys were squeezing performance out of the grid before. NET 3. In general except for Windows and Office Microsoft are very slow to release any eye candy and if you are a WPF developer today you need the Xceeds and Lawson Smart Client folk to lead the direction inspiration wise.

Thanks for the vid and the xeptional grid! I guess it's more that I expect C9 to give news and features on what MS is doing and what is already there in the.

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NET Framework. Carry on!We have spent several years working with XAML and during that time we had found it quite difficult to 1 easily locate the known free XAML viewers via Google, 2 find one which implemented the features we required as part of our critical 3D data translation work. This viewer was not written in a day, but rather was written by two senior Okino developers over a period of 5 long months of development, at a real cost to Okino. The Okino 3D camera added to the scene upon import carefully and intelligently resizes itself around the imported object s so that rotations, scaling and translations occur intuitively from 2D mouse movement.

No other XAML viewer we have encountered can do this properly other than our own. Hierarchy viewer that allows elements to be highlighted in the display. Okino controlled and custom designed scrubbable animation playback we override the WinFX controls.

Note: playback of animation requires that the animation be keyframe or duration based with a valid storyboard and timeline such as exported from Okino's XAML-3D exporter.

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Animation of specific properties, such as "animate an 'OffsetX' property" is not handled. Our software is used by tens of thousands of enterprise, production and multi-media companies around the world, with over 2 decades of development, refinement and usage. Download and execute the Microsoft. Specialized Sections. Screen Snapshot.

The ultimate 3D graphics toolkit for WPF and WinForms

Download the Viewer.After parsing, all the files are added to the instance tree. XDocument representation. The table below gives an overview of all possible encoding rules. In order to build up the instance tree, it is sufficient to access only the meta data information of each DICOM file. On selection of an instance in the instance tree, the meta data information of the selected DICOM file is shown on the right-side panel. In case the instance is of type CT Image and the pixel data is uncompressedthe pixel data is converted into a bitmap and displayed to the user on the button of the right-side panel.

The conversion is done in two steps:. For CT Images, the relationship between the stored values SV and the Hounsfield values is defined by the following formula:. Once the stored values are converted into Hounsfield values HUthe Hounsfield values have to be converted further into meaningful grayscale values.

Medical image visualization using WPF

The Hounsfield values range from e. Picture is taken from: Introduction to CT Physics.

wpf 3d viewer

Mapping each Hounsfield value to a grayscale value would be the easiest way to display the image. However, the human eye would not be able to distinguish gray values over such a wide range.

In order to overcome this limitation, the concept of Windowing is introduced. Depending on the tissue being studied, the examiner of the image can set a Window corresponding to the range of Hounsfield values he is interested in.

Hounsfield values left of the window are displayed as black, Hounsfield values right of the window are displayed as white. In order to allow the user to scroll through all CT images of the stack, a user control similar to Apple's Cover Flow is provided.

The ImageFlowView control has to support paging. This means, only a few CT image slices next to the centered CT image are made visible at any point in time. Displaying all CT images of an entire CT series would lead to a very high memory consumption. A CT series e. The memory allocation for one single CT image can be calculated as follows:. This brings us to a memory consumption of 1 MB for one single CT image.

In case the Shift-Key is pressed, scrolling is done without animation. The VolumeView class implements the well-known Marching Cubes algorithm in order to create an isosurface out of the 3D scalar field of Hounsfield values. The Marching Cubes algorithm is described in the famous article Polygonising a scalar field from Paul Bourke. For the C implementation of the Marching Cubes algorithm, the proposal from Paul Bourke's article was used.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Recently I have been working on a small WPF project involving the visualization and manipulation of 3d objects. For 2d ojects, this can be easily achieved with a Canvas warpped in a ViewBox or some nice 3rd party controls.

But I can't find any free, ready-to-use solution for 3d objects. However, many tricky tasks like adjusting camera according to mouse and keyboard input is not presented. So before I start building my own control, I want to at least confirm that I'm not wasting my time doing something already perfectly done. And how to properly config the mouse and keyboard events to make the control behaves as if using some professional CAD softwares?

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Learn more. Asked 2 years, 5 months ago. Active 2 years, 5 months ago. Viewed times. In short: 1. Any free 3d control for WPF 2. How to build my own ones Can anyone help me? Yes, the HelixToolkit seems promising, and the first and latest build ver 1. No wonder I didn't notice this one. That being said, this lib do suffer from a lack of documentation.

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Viewport3D Class

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