Difference between revisions of "Talk:World Simulator"

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=== Good and bad points ===
 
=== Good and bad points ===
  
* ++ PLib's SSG renderer already written.
+
* +++ PLib's SSG renderer already written.
* -- Outdoor scene like quad-trees / octrees ([http://www.google.com/search?q=octree+outdoor] and [http://www.gamedev.net/reference/programming/features/quadtrees/])
+
* --- Outdoor scene like quad-trees / octrees ([http://www.google.com/search?q=octree+outdoor] and [http://www.gamedev.net/reference/programming/features/quadtrees/])
* -- Good scene graphs are in C++, what about the completeness of wrappers?
+
* - Good scene graphs are in C++, what about the completeness of wrappers?
 
* -- It's fun to write a 3D renderer
 
* -- It's fun to write a 3D renderer
  

Revision as of 17:01, 13 June 2008

Engine in C# (vs C/C++)

Good and bad points

  • +++ It's C#
  • -- Overload of evaluating the track to be displayed (Many marshaling required).
  • - Require to write a

Discussion

To start, I guess for now I'll just make some minimal improvements in C++, it's a good way to make me comfortable with the code base. Probably when enough things will start to be ported to C# we'll consider making the 3D engine working completely in C#. Although this is often a module where performance should not be sacrificed and to much "C# to C++" calls may hurt performances.

Scene-Graph (vs Custom Renderer)

Good and bad points

  • +++ PLib's SSG renderer already written.
  • --- Outdoor scene like quad-trees / octrees ([1] and [2])
  • - Good scene graphs are in C++, what about the completeness of wrappers?
  • -- It's fun to write a 3D renderer

Discussion

If you want to understand my opinion about scene graph you can see what says this guy: [3]

I don't think we need a complex scene graph. In every project I made, the use of a specific scene graph quickly became a limitation. Taken this into account, I prefer we write a tiny 3D engine completely in C#, just containing the flat list of 3D objects in the world, it's easy and probably faster: no wrapper, we're free to make application-specific optimizations, etc. For example we can then switch to a quad-tree (or octree) for storing objects, which is really better than a scene graph in an outdoor scene. ([4] and [5])

Toolkits

  • OpenTK, an OpenGL/AL wrapper as well as a toolkit providing math functions, etc.
    • This may be a good choice to. It has less dependencies than TAO (since/however it provides less wrappers..).
  • TAO