private void CreateBackLight()
{
var vertices = PrimitiveUtils.CreateFrontVertices(new Vector3(0), new Vector2(2), 1);
var uvs = PrimitiveUtils.CreateFrontUvs();
var mesh = new Mesh(vertices, uvs, _rearLightShader)
{
IsInstanced = true
};
_meshes.Add(mesh);
}
public Billboard CreateNorthFacingBillboard(Vector3 position, Vector2 area, float height)
{
var texture = _billboardTextures.ElementAt(_random.Next(_billboardTextures.Length));
var width = CalculateBillboardWidth(height);
area.X = width;
position.Z += 0.05f;
return(new Billboard(
texture,
_shader,
PrimitiveUtils.CreateFrontVertices(position, area, height),
PrimitiveUtils.CreateFrontUvs()));
}