private QuadMesh GenerateTerrain(Vector2 center, Vector2 dimensions)
{
var quadMesh = QuadMesh.CreatePlane(dimensions, new IntVector2(SubdivisionsX, SubdivisionsY));
quadMesh.ForEachQuad((quad, index) => {
float height = GenerateHeight(center, quad.vertices[0].x, quad.vertices[0].z);
if (height == 0.0f)
{
return;
}
quadMesh.Extrude(index, quad.Normal, height);
});
quadMesh.Optimize();
return(quadMesh);
}
private Mesh GenerateTerrain()
{
var quadMesh = QuadMesh.CreatePlane(Dimensions, new IntVector2(SubdivisionsX, SubdivisionsY));
quadMesh.ForEachQuad((quad, index) => {
float height = GenerateHeight(quad.vertices[0].x, quad.vertices[0].z);
if (height == 0.0f)
{
return;
}
quadMesh.Extrude(index, quad.Normal, height);
});
quadMesh.Optimize();
return(quadMesh.ToMesh(!FlatShading, ConvertToTris));
}
public static QuadMesh CreatePlane(Vector2 dimensions, IntVector2 faces)
{
QuadMesh mesh = new QuadMesh();
IntVector2 numVertices = faces + IntVector2.one;
Vector2 step = dimensions / faces;
IntVector2 index = IntVector2.zero;
// vertices
for (index.x = 0; index.x < numVertices.x; ++index.x)
{
for (index.y = 0; index.y < numVertices.y; ++index.y)
{
Vector2 position = index * step;
mesh.Vertices.Add(new Vector3(position[0], 0.0f, position[1]));
mesh.UVs.Add(position.ElementwiseDivide(dimensions));
}
}
// indices
for (index.x = 0; index.x < faces.x; ++index.x)
{
for (index.y = 0; index.y < faces.y; ++index.y)
{
IntVector4 quad = IntVector4.zero;
quad[0] = LinearizeIndex(index, numVertices);
quad[1] = LinearizeIndex(index + new IntVector2(1, 0), numVertices);
quad[2] = LinearizeIndex(index + new IntVector2(1, 1), numVertices);
quad[3] = LinearizeIndex(index + new IntVector2(0, 1), numVertices);
mesh.Indices.Add(quad);
}
}
return(mesh);
}