Project Description
An XNA 4.0 testbed/sample for interactive terrain deformation and custom particle system components, within the SunBurn Game Engine.

Specifically, this sample will feature a user controlled excavation tool for digging into deformable terrain surfaces, with associated side-effects like particle system dust clouds. It uses the commercial Indie version of Synapse Gaming's excellent SunBurn engine for rendering, lighting and the dynamic terrain, and will use BEPU for other physics-based digging side-effects (i.e. falling rock debris).

This sample targets Windows, but may also be of some interest to Xbox and Windows Phone developers.

To check out the current runtime build, click the green Download button. This will launch the ClickOnce installer for the binary. To check out the source code, click the Source Code tab.

Techniques shown in current build:
  • Camera: Free-flying first person camera
  • Custom Effects: Static mesh-based terrain using blended multi-texture shader.
  • Particles: Custom particle system component (configurable in real-time within SunBurn editor).
  • Deformable Mesh: Updating custom heightmap-based terrain at runtime (i.e. terrain deformation).
  • Picking: Triangle-accurate mesh-picking (without introducing a custom model processor).

Requirements to build the current source code:
  • Visual Studio 2010
  • XNA 4.0
  • .NET 4.0
  • SunBurn Indie edition (paid)

Concept Sketches

Here are some images that show the major components of the planned terrain deformation sample.

Example of digging action:
DiggingAction.jpg

Example of a digging agent:
Truck.jpg

Example of a deformable terrain - a quarry:
Quarry.jpg

Terrain

Here are the elements that make up the terrain.

3dsmax.jpg

blend_map.png

TerrainDebug.jpg
The terrain with debugging textures shown.

Quarry2.jpg
Terrain with standard textures.

TerrainPatch.jpg
Static terrain mesh, with a SunBurn dynamic terrain hill peeking out.





Final terrain-deformation approach using a custom mesh patch (implemented as a custom scene type).

Last edited Sep 30, 2011 at 6:02 AM by adamkane, version 66