/// <summary>
/// Render the clipping region of the provided <see cref="UIElement"/>.
/// </summary>
/// <param name="element">The element to render.</param>
/// <param name="context">The rendering context containing information how to draw the element.</param>
/// <remarks>The render target, the depth stencil buffer and the depth stencil state are already correctly set when entering this function.
/// If the user wants to perform some intermediate rendering, it is his responsibility to bind them back correctly before the final rendering.</remarks>
public virtual void RenderClipping(UIElement element, UIRenderingContext context, UIBatch Batch)
{
// Default implementation: render an back-face cube
Batch.DrawBackground(ref element.WorldMatrixInternal, ref element.RenderSizeInternal, ref blackColor, context.DepthBias);
// increase the context depth bias for next elements.
context.DepthBias += 1;
}
/// <summary>
/// Render the provided <see cref="UIElement"/>.
/// </summary>
/// <param name="element">The element to render.</param>
/// <param name="context">The rendering context containing information how to draw the element.</param>
/// <remarks>The render target, the depth stencil buffer and the depth stencil state are already correctly set when entering this function.
/// If the user wants to perform some intermediate rendering, it is his responsibility to bind them back correctly before the final rendering.</remarks>
public virtual void RenderColor(UIElement element, UIRenderingContext context, UIBatch Batch)
{
var backgroundColor = element.RenderOpacity * element.BackgroundColor;
// pass the 3D matrix onto the element for picking
element.WorldMatrix3D = context.IsFullscreen ? (Matrix?)null : context.WorldMatrix3D;
// optimization: don't draw the background if transparent
if (backgroundColor.A == (byte)0)
{
return;
}
// Default implementation: render an back-face cube with background color
Batch.DrawBackground(ref element.WorldMatrixInternal, ref element.RenderSizeInternal, ref backgroundColor, context.DepthBias);
// increase depth bias value so that next elements renders on top of it.
context.DepthBias += 1;
}