private SceneNodeBase GetTree()
{
var group = new GroupNode();
//{
// var cube = CubeNode.Create();
// cube.Color = new vec4(0, 1, 0, 0.3f);
// group.Children.Add(cube);
//}
const float alpha = 0.5f;
{
var glass = RectGlassNode.Create(4, 3);
glass.WorldPosition = new vec3(-1, 0, 0);
glass.Color = new vec4(0, 1, 0, alpha);
glass.Name = "Green Glass";
group.Children.Add(glass);
}
{
var glass = RectGlassNode.Create(4, 3);
glass.WorldPosition = new vec3(1, 0, 1);
glass.Color = new vec4(1, 0, 0, alpha);
glass.Name = "Red Glass";
group.Children.Add(glass);
}
return(group);
}
public static RectGlassNode Create(float width, float height)
{
var model = new RectGlassModel(width, height);
var vs = new VertexShader(vert);
var fs = new FragmentShader(frag);
var array = new ShaderArray(vs, fs);
var map = new AttributeMap();
map.Add("inPosition", RectGlassModel.strPosition);
var blend = new BlendFuncSwitch(BlendSrcFactor.SrcAlpha, BlendDestFactor.OneMinusSrcAlpha);
var depthMask = new DepthMaskSwitch(false);
var builder = new RenderMethodBuilder(array, map, blend, depthMask);
var node = new RectGlassNode(model, builder);
node.Blend = blend;
node.ModelSize = new vec3(width, height, 0);
node.Initialize();
return(node);
}