Scaling my terrain

[Crushinator]

I have a terrain generated from a 1024x1024 heightmap. I have a parameter in engine that scales the position of each vertex by a user-defined amount, so that the world can be larger without requiring larger heightmap images and more memory. I need to be able to take a 1024x1024 heightfield array and create a scaled terrain in BEPU, like one that would be 4096x4096 in size. Can this be done?

[Norbo]

Yup. The Terrain has a world transform associated with it. The transform can accept any affine transform including scaling.

For example, here's a snippet from the TerrainDemo:

Code: Select all

            var terrain = new Terrain(heights, new AffineTransform(
                    new Vector3(xSpacing, 1, zSpacing),
                    Quaternion.Identity,
                    new Vector3(-xLength * xSpacing / 2, 0, -zLength * zSpacing / 2)));

That AffineTransform constructor takes a scaling, orientation, and translation.

[Crushinator]

Thanks, that worked perfectly.