private void SetUpVertices( Line2 line, float height )
{
Vector3[] vertex = new Vector3[ 6 ];
// top left
vertex[ 0 ] = new Vector3( line.X0, height, line.Y0 );
// bottom left
vertex[ 1 ] = new Vector3( line.X0, 0, line.Y0 );
// top right
vertex[ 2 ] = new Vector3( line.X1, height, line.Y1 );
// bottom left
vertex[ 3 ] = new Vector3( line.X0, 0, line.Y0 );
// bottom right
vertex[ 4 ] = new Vector3( line.X1, 0, line.Y1 );
// top right
vertex[ 5 ] = new Vector3( line.X1, height, line.Y1 );
Vector2 texTopLeft = Vector2.Zero;
Vector2 texTopRight = Vector2.UnitX;
Vector2 texBottomLeft = Vector2.UnitY;
Vector2 texBottomRight = Vector2.One;
Vector3 normal = Vector3.Cross(
new Vector3( line.Direction.X, 0, line.Direction.Y ),
Vector3.UnitY );
Color color = Color.White;
mVertexData[ 0 ] = new VertexPositionNormalColorTexture(
vertex[ 0 ], normal, color, texTopLeft );
mVertexData[ 1 ] = new VertexPositionNormalColorTexture(
vertex[ 1 ], normal, color, texBottomLeft );
mVertexData[ 2 ] = new VertexPositionNormalColorTexture(
vertex[ 2 ], normal, color, texTopRight );
mVertexData[ 3 ] = new VertexPositionNormalColorTexture(
vertex[ 3 ], normal, color, texBottomLeft );
mVertexData[ 4 ] = new VertexPositionNormalColorTexture(
vertex[ 4 ], normal, color, texBottomRight );
mVertexData[ 5 ] = new VertexPositionNormalColorTexture(
vertex[ 5 ], normal, color, texTopRight );
}
private void SetUpVertices()
{
float w = Width;
float h = Height;
Vector3[] vertex = new Vector3[ 6 ];
// top left
vertex[ 0 ] = new Vector3( 0, 0, 0 );
// top right
vertex[ 1 ] = new Vector3( +w, 0, 0 );
// bottom left
vertex[ 2 ] = new Vector3( 0, 0, +h );
// bottom left
vertex[ 3 ] = new Vector3( 0, 0, +h );
// top right
vertex[ 4 ] = new Vector3( +w, 0, 0 );
// bottom right
vertex[ 5 ] = new Vector3( +w, 0, +h );
Vector2 texTopLeft = Vector2.Zero;
Vector2 texTopRight = Vector2.UnitX;
Vector2 texBottomLeft = Vector2.UnitY;
Vector2 texBottomRight = Vector2.One;
Color color = Color.White;
mVertexData[ 0 ] = new VertexPositionNormalColorTexture(
vertex[ 0 ], Vector3.UnitY, color, texTopLeft );
mVertexData[ 1 ] = new VertexPositionNormalColorTexture(
vertex[ 1 ], Vector3.UnitY, color, texTopRight );
mVertexData[ 2 ] = new VertexPositionNormalColorTexture(
vertex[ 2 ], Vector3.UnitY, color, texBottomLeft );
mVertexData[ 3 ] = new VertexPositionNormalColorTexture(
vertex[ 3 ], Vector3.UnitY, color, texBottomLeft );
mVertexData[ 4 ] = new VertexPositionNormalColorTexture(
vertex[ 4 ], Vector3.UnitY, color, texTopRight );
mVertexData[ 5 ] = new VertexPositionNormalColorTexture(
vertex[ 5 ], Vector3.UnitY, color, texBottomRight );
}