protected override async Task LoadContent()
{
await base.LoadContent();
border = new Border { Width = 200, Height = 150, Content = new Button { NotPressedImage = new Sprite(Asset.Load<Texture>("uv")), DepthAlignment = DepthAlignment.Back}};
border.SetCanvasPinOrigin(new Vector3(0.5f));
border.BackgroundColor = Color.Red;
ResetBorderElement();
UIComponent.RootElement = new Canvas { Children = { border } };
}
private void DrawBorder(Border border, ref Vector3 offsets, ref Vector3 borderSize, UIRenderingContext context)
{
var worldMatrix = border.WorldMatrixInternal;
worldMatrix.M41 += worldMatrix.M11 * offsets.X + worldMatrix.M21 * offsets.Y + worldMatrix.M31 * offsets.Z;
worldMatrix.M42 += worldMatrix.M12 * offsets.X + worldMatrix.M22 * offsets.Y + worldMatrix.M32 * offsets.Z;
worldMatrix.M43 += worldMatrix.M13 * offsets.X + worldMatrix.M23 * offsets.Y + worldMatrix.M33 * offsets.Z;
Batch.DrawCube(ref worldMatrix, ref borderSize, ref border.BorderColorInternal, context.DepthBias);
}