.net, 3D, Balder, Silverlight

2009 coming to an end – Welcome 2010

2010 is just a couple of days away, I thought I'd do a recap of 2009 and what has happened in my little world. 🙂 

Back in August 2008 Balder was at a proof of concept stage and I had close to abandoned the project, I had so many things I wanted to do which resulted in not doing anything. Along came a couple of emails from Clinton Rocksmith who found the project interesting and wanted to know how he could contribute. I was really surprised, I never imagined anyone actually looking at the project. Timing was a bit off, I had just signed a contract with a new company and never got around to prioritize Balder, other projects always came in the way. Again, a couple of months later the project was at a stand still and I was getting again to a point of almost abandoning it completely. In the beginning of 2009 though, I got contacted by Gastón Hillar who also found the project interesting and wanted to include a couple of samples in his upcoming book. This spun me completely of my axis. I worked closely with Gastón in providing him the best possible solution and bring Balder to a new level. For me this was a true turning point for Balder and I quickly decided to put all other projects on a complete halt and focus my energy on Balder. The result was that we managed to get Balder to an API level that felt a lot better, performance was increased with several hundred percent and the codebase quality was increased dramatically with retrofitting unit tests for critical parts. 

The project was all of a sudden going somewhere, it was time to look for other developers to join in. A good friend of mine; Petri Wilhelmsen joined the project and has contributed a bit and will commit more time next year to the project. Another friend of mine; Raymond Holmboe has been contributing some on and off since I started the project back in the days and will be committing more time next year as well to the project. 

The ultimate result from all of this is that there has been quite a few commercial interests in the project, everything from companies wanting to buy the project as a whole to companies wanting to utilize it professionally. This is something I can disclose more information on later next year. One thing is certain though, Balder will stay open source and free to use.

Also this year, I was suggested as a Silverlight MVP and was eventually moved from Xna to Silverlight. Thanks to Justin Angel for recognizing me and suggesting the move, its a true honor. 

Although I had a very nice job at Objectware, the distance of 125 KM to work one way was to big. Even though I didn't commute everyday, it got to be a strain on my family when I had to go early in the morning and wasn't back till late and most nights after the kids had gone to bed. So I started sniffing the market to see if there was opportunities closer to home. I ended up at a company called Bouvet, and don't regret my decision. Bouvet has in my opinion the right focus for consultants, and it just feels right. Happy to be onboard.

Professionally I've had the opportunity to work full time on a Enterprise Silverlight project, I've worked on two Microsoft Surface projects, some WPF projects and finally ended up spending the last 3-4 months of the year working on an ASP.net MVC project with some Silverlight content.  

Its also been a very busy year when it comes to speaking engagements, I've been part of Microsoft Norways MSDN Live tour, been speaking at NNUG a couple of times, Game Camp, did a Silverlight course. 

2009 has truly been an exciting year, busy, but very exciting. With the release of Silverlight 3 this summer and the beta version of Silverlight 4, I'm at a point were I really can't wait to get out of bed in the morning and just find the keyboard and start hacking away. It has never been more fun to be a developer, a lot is happening these days, not only in the Microsoft arena, but in general. I can't wait to see what 2010 brings.


Happy new year everyone, looking forward to participate next year. Thanks to everyone who has made 2009 so much fun and exciting, especially I'd like to thank my wife and kids, who has really been patient with me and supported me along the way. 



.net, Balder, Silverlight

Innovasys donates to the Balder project

One really important thing when creating a framework like Balder, is to create proper documentation. The purpose of the documentation is for people to get good explanations for the API and samples on how to use it. 

I've been researching quite a bit for finding a good solution for doing this and didn't want to do all documentation by using XML comments only, but wanted more rich content and must admit that I never found any free solutions that I found satisfying. In the past I've used Innovasys' solution called DocumentX and was very happy with it. It might not be the natural choice for an OpenSource project to chose a commercial product, but the quality in which I want the documentation to be in I really wanted to use a product like DocumentX.

DocumentX provides a combination of documentation generated from XML comments in the code and rich text edited content, all mixed in nicely in the development environment; Visual Studio. This makes it easy to use and maintainable.  

Long story short, we've been so lucky to get Innovasys to sponsor  donate a license to actually do this. So a big thanks goes to them for providing the necessary license for this.


We will be working on updating the documentation and get it in future releases and part of the regular development. 

.net, 3D, C#, Game Development, Silverlight

Balder pulled – why ?

A couple of days ago I published a new version of Balder; It had a bunch of improvements in it, especially when it comes to the Silverlight Control support. I had to pull the release mere hours after its release. The reason for pulling it was that I did a lot of optimizations in the rendering, or at least I thought I did. Turns out that when running on a very fast Dual core or Quad core computer, it was faster – but on slower machines, it turned out to be quite slow. 

Instead of reverting the entire optimization, I've decided to actually get the performance up quite a bit. I've been working on a new rendering pipeline that would increase the performance dramatically, so no time like the present.

The biggest change however with the release was the Xaml support. In the Development branch over at GitHub you will find source code with the rendering pipeline being the same as in version, but with all the new Xaml support. So if you can't wait for the optimizations and want to get your Xaml right from the start – you should go pull the latest on the Development branch and compile the binaries yourself. In fact, it should be fairly simple to do it, just download it and run the build.cmd file from a command prompt and it will output a Drop directory with all the binaries in it.

.net, 3D, Balder, Game Development, Silverlight

Balder Release is out

UPDATE 8th of July 2010 : is out – read more here.

UPDATE, 16th of December 2009 : Release was pulled due to issues with rendering. New release will be pushed soon.

Its that time again, yet another release of Balder. You’re probably thinking – whats going on? Pushing releases close to every week.

Well, this release had to be pushed out fast, the reason being that a couple of days after the previous release I realized that the Xaml support introduced felt good while using it, but clearly had its limitations and also maintainability issues when working with the library.

In the previous release I introduced the Xaml support as Controls in the Balder.Silverlight assembly, which seemed like a fair place to have it, seeing that Xaml/Controls are a very specific platform option that Silverlight supports and should not be present in Core. Problem with that was that we now had two object hierarchies to maintain, one just reflecting most of the properties already found in Core and doing some crazy magic to maintain these hierarchies. Needless to say, this approach is very error prone and hard to maintain.

Dependency Properties

The main reasons for not pushing the Control support into Core was the fact that I didn’t want DependencyProperties leaking into it all over the place and not wanting types to derive from DependencyObject or any other Silverlight specific type. So what I came up with is to make the types in question partial and implement the Silverlight specifics in a .Silverlight.cs file – which then could be skipped for other platforms. Then for DependencyProperties, I wrapped everything up in a generic Property type that has a Specific Silverlight implementation that again can change for other platforms.

The result is a more maintainable codebase, and a better experience when using it.


Another reason for pushing for another release was the fact that I did some heavy optimizations. Earlier when doing optimizations, I worked mostly with Silverlight 2 and Silverlight 3 Beta. For SL2 I created a RawPngBufferStream, since no WriteableBitmap was available there, and for SL3 beta, the WriteableBitmap was quite different than what the final RTW version had going for it. Long story short, I ended up with a multithreading scenario that gave quite a performance boost.

After looking at this for quite some time, I found that it would be better to have multiple WriteableBitmaps and do triplebuffering with these and use different threads for different purposes (Clearing, Rendering, Showing). Turns out that this was quite efficient, only problem was that synchronization turned out to be a bit of a problem. So I did a test with doing all the operations synchronously in the CompositionTargets event, and it gave a serious performance boost. That combined with some optimized ways of clearing surely seemed to do wonders.

The new release is available fromhere.

.net, 3D, C#, Game Development, XNA

Speaking at Software 2010 with Petri Wilhelmsen

On the 9th of February, Software 2010 is kicked off. Petri Wilhelmsen and myself will be holding an hour on game development with managed code using Microsoft Xna and Silverlight (featuring Balder). We will be focusing on 3D development and cross-platform using .net.

Really looking forward to doing a co-op with Petri.

For more details and signup, go here

.net, C#, Silverlight

Silverlight Courses 2010

2010 is going to be a busy year for me, along side consultancy for several customers, I've been scheduled to do a few courses. Silverlight is the topic for all but one of the courses.

You'll find all the courses in this overview of all of Bouvets courses here.

Even though, listed as Silverlight 3 specific, they will be focusing on Silverlight in general and will include some of Silverlight 4 as well. We're looking into putting up a Silverlight 4 specific course as well. 

So, if you want to get your hands dirty and start learning Silverlight, these courses are the place to be. 

Update 9th of December 2009, direct links to the courses:


.net, Balder, Game Development, Silverlight

Balder Logo + Tutorials

On monday (30th of November 2009) we had a new release of Balder, version Since then I've been busy getting tutorials up on the site for not only the new stuff but also covering usage in general. All the tutorials are available here.  

Also, for the release I decided it was time to get a logo for the project, so opened my favourite 3D modelling software and photo/image editor and had a go, and ended up with the following.