internal SceneCamera(Assimp.Camera camera, ShaderWindow window, SceneNode node)
{
getProjectionMatrix = () =>
{
var aspectRatio = camera.AspectRatio;
if (aspectRatio == 0)
{
var viewport = window.Viewport;
aspectRatio = (viewport.Width * window.Width) / (viewport.Height * window.Height);
}
// convert 1/2 horizontal FOV to full vertical FOV
var fovy = 2 * Math.Atan(Math.Tan(camera.FieldOfview) / aspectRatio);
return(Matrix4.CreatePerspectiveFieldOfView(
(float)fovy,
aspectRatio,
camera.ClipPlaneNear,
camera.ClipPlaneFar));
};
Name = camera.Name;
Node = node;
}
public override void Execute(ShaderWindow window)
{
GL.Disable(Capability);
}
public abstract void Execute(ShaderWindow window);
public override void Execute(ShaderWindow window)
{
window.Scissor = new RectangleF(X, Y, Width, Height);
}
public override void Execute(ShaderWindow window)
{
GL.MemoryBarrier(Barriers);
}
public override void Execute(ShaderWindow window)
{
GL.PolygonMode(Face, Mode);
}
public override void Execute(ShaderWindow window)
{
GL.DepthFunc(Function);
}
public override void Execute(ShaderWindow window)
{
GL.Hint(Target, Mode);
}
public override void Execute(ShaderWindow window)
{
GL.PointSize(Size);
}
public override void Execute(ShaderWindow window)
{
GL.LineWidth(Width);
}
public override void Execute(ShaderWindow window)
{
GL.BlendFunc(SourceFactor, DestinationFactor);
}
public override void Execute(ShaderWindow window)
{
GL.DepthMask(Enabled);
}