void DoViewport(InterfaceModel mdl)
{
if (drawable == null)
{
return;
}
var szX = (int)ImGui.GetColumnWidth() - 5;
var szY = (int)ImGui.GetWindowContentRegionMax().Y - (int)ImGui.GetCursorPosY() - 5;
BindViewport(szX, szY);
//Do drawing
var rectangle = new Rectangle(5, 5, rtX - 10, rtY - 10);
mainWindow.RenderContext.Renderer2D.FillRectangle(rectangle, Color4.CornflowerBlue);
var transform = Matrix4x4.CreateScale(mdl.XScale, mdl.YScale, 1) *
Matrix4x4.CreateTranslation(mdl.X, mdl.Y, 0);
transform *= DisplayModel.CreateTransform(rtX, rtY, rectangle);
var mcam = new MatrixCamera(Matrix4x4.Identity);
drawable.Update(mcam, mainWindow.TotalTime, context.ResourceManager);
mainWindow.RenderContext.Cull = false;
mainWindow.RenderContext.ScissorEnabled = true;
mainWindow.RenderContext.ScissorRectangle = rectangle;
drawable.DrawImmediate(mainWindow.RenderContext, context.ResourceManager, transform, ref Lighting.Empty);
mainWindow.RenderContext.ScissorEnabled = false;
mainWindow.RenderContext.Cull = true;
DrawViewport();
}