internal static extern void dGeomHeightfieldDataBuildCallback(dHeightfieldDataID d, IntPtr pUserData, dHeightfieldGetHeight pCallback, dReal width, dReal depth, int widthSamples, int depthSamples, dReal scale, dReal offset, dReal thickness, int bWrap);
public static extern void dGeomHeightfieldDataBuildCallback(dHeightfieldDataID d, IntPtr pUserData, dHeightfieldGetHeight pCallback, dReal width, dReal depth, int widthSamples, int depthSamples, dReal scale, dReal offset, dReal thickness, int bWrap);