/// <summary>Initializes the camera for a frame render.</summary>
/// <param name="width">The width of the viewport in pixels</param>
/// <param name="height">The height of the viewport in pixels</param>
public virtual void InitRender(int width, int height)
{
w2 = width / 2D;
h2 = height / 2D;
// This code is a bit screwy to avoid flipping the camera, not sure if there's a better way to do this (yet)
look = (lookAt - position).Normalize();
side = look.Cross(-up).Normalize();
up = look.Cross(side).Normalize();
side = -side;
}
private void Recalculate()
{
Edge0to1 = Vert1.Position - Vert0.Position;
Edge0to2 = Vert2.Position - Vert0.Position;
if (!HasNormals)
{
Normal = Edge0to1.Cross(Edge0to2).Normalize();
Vert0 = Vert0.WithNormal(Normal);
Vert1 = Vert1.WithNormal(Normal);
Vert2 = Vert2.WithNormal(Normal);
}
}