public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
break;
case 1:
// Set the slide's subtitle and display the primitves
TextManager.SetSubtitle("Built-in parametric primitives");
PresentPrimitives();
break;
case 2:
// Hide the carousel and illustrate SCNText
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5f;
SCNTransaction.SetCompletionBlock(() => {
CarouselNode.RemoveFromParentNode();
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
PresentTextNode();
TextNode.Opacity = 1.0f;
SCNTransaction.Commit();
});
CarouselNode.Opacity = 0.0f;
SCNTransaction.Commit();
TextManager.SetSubtitle("Built-in 3D text");
TextManager.AddBulletAtLevel("SCNText", 0);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
case 3:
// Hide the 3D text and introduce SCNShape
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5f;
SCNTransaction.SetCompletionBlock(() => {
if (TextNode != null)
{
TextNode.RemoveFromParentNode();
}
presentationViewController.ShowsNewInSceneKitBadge(true);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle("3D Shapes");
TextManager.AddBulletAtLevel("SCNShape", 0);
TextManager.AddBulletAtLevel("Initializes with a NSBezierPath", 0);
TextManager.AddBulletAtLevel("Extrusion and chamfer", 0);
TextManager.AddCode("#aNode.Geometry = SCNShape.#Create# (aBezierPath, 10);#");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
});
if (TextNode != null)
{
TextNode.Opacity = 0.0f;
}
SCNTransaction.Commit();
break;
case 4:
TextManager.FadeOutText(SlideTextManager.TextType.Bullet);
TextManager.FadeOutText(SlideTextManager.TextType.Code);
// Illustrate SCNShape, show the floor ouline
Level2Node = Level2();
Level2OutlineNode = Level2Outline();
Level2Node.Position = Level2OutlineNode.Position = new SCNVector3(-11, 0, -5);
Level2Node.Rotation = Level2OutlineNode.Rotation = new SCNVector4(1, 0, 0, -(float)(Math.PI / 2));
Level2Node.Opacity = Level2OutlineNode.Opacity = 0.0f;
Level2Node.Scale = new SCNVector3(0.03f, 0.03f, 0);
Level2OutlineNode.Scale = new SCNVector3(0.03f, 0.03f, 0.05f);
GroundNode.AddChildNode(Level2OutlineNode);
GroundNode.AddChildNode(Level2Node);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
Level2OutlineNode.Opacity = 1.0f;
SCNTransaction.Commit();
break;
case 5:
presentationViewController.ShowsNewInSceneKitBadge(false);
// Show the extruded floor
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
Level2Node.Opacity = 1.0f;
Level2Node.Scale = new SCNVector3(0.03f, 0.03f, 0.05f);
SCNTransaction.SetCompletionBlock(() => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.5f;
// move the camera a little higher
presentationViewController.CameraNode.Position = new SCNVector3(0, 7, -3);
presentationViewController.CameraPitch.Rotation = new SCNVector4(1, 0, 0, -(float)(Math.PI / 4) * 0.7f);
SCNTransaction.Commit();
});
SCNTransaction.Commit();
break;
case 6:
TextManager.FadeOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
// Example of a custom geometry (Möbius strip)
TextManager.SetSubtitle("Custom geometry");
TextManager.AddBulletAtLevel("Custom vertices, normals and texture coordinates", 0);
TextManager.AddBulletAtLevel("SCNGeometry", 0);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
// move the camera back to its previous position
presentationViewController.CameraNode.Position = new SCNVector3(0, 0, 0);
presentationViewController.CameraPitch.Rotation = new SCNVector4(1, 0, 0, Pitch * (float)(Math.PI / 180.0));
Level2Node.Opacity = 0.0f;
Level2OutlineNode.Opacity = 0.0f;
SCNTransaction.Commit();
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
TextManager.SetSubtitle("Built-in parametric primitives");
break;
case 1:
PresentPrimitives();
break;
case 2:
// Hide the carousel and illustrate SCNText
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
SCNTransaction.SetCompletionBlock(() => {
if (CarouselNode != null)
{
CarouselNode.RemoveFromParentNode();
}
});
PresentTextNode();
TextNode.Opacity = 1.0f;
if (CarouselNode != null)
{
CarouselNode.Position = new SCNVector3(0, CarouselNode.Position.Y, -50);
CarouselNode.Opacity = 0.0f;
}
SCNTransaction.Commit();
TextManager.SetSubtitle("Built-in 3D text");
TextManager.AddBulletAtLevel("SCNText", 0);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
case 3:
//Show bezier path
var star = StarPath(3, 6);
var shape = SCNShape.Create(star, 1);
shape.ChamferRadius = 0.2f;
shape.ChamferProfile = OutlineChamferProfilePath();
shape.ChamferMode = SCNChamferMode.Front;
// that way only the outline of the model will be visible
var outlineMaterial = SCNMaterial.Create();
outlineMaterial.Ambient.Contents = outlineMaterial.Diffuse.Contents = outlineMaterial.Specular.Contents = NSColor.Black;
outlineMaterial.Emission.Contents = NSColor.White;
outlineMaterial.DoubleSided = true;
var tranparentMaterial = SCNMaterial.Create();
tranparentMaterial.Transparency = 0.0f;
shape.Materials = new SCNMaterial[] {
tranparentMaterial,
tranparentMaterial,
tranparentMaterial,
outlineMaterial,
outlineMaterial
};
StarOutline = SCNNode.Create();
StarOutline.Geometry = shape;
StarOutline.Position = new SCNVector3(0, 5, 30);
StarOutline.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy(0, (float)Math.PI * 2, 0, 10.0)));
GroundNode.AddChildNode(StarOutline);
// Hide the 3D text and introduce SCNShape
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
SCNTransaction.SetCompletionBlock(() => {
TextNode.RemoveFromParentNode();
});
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle("3D Shapes");
TextManager.AddBulletAtLevel("SCNShape", 0);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
StarOutline.Position = new SCNVector3(0, 5, 0);
TextNode.Position = new SCNVector3(TextNode.Position.X, TextNode.Position.Y, -30);
SCNTransaction.Commit();
break;
case 4:
star = StarPath(3, 6);
shape = SCNShape.Create(star, 0);
shape.ChamferRadius = 0.1f;
StarNode = SCNNode.Create();
StarNode.Geometry = shape;
var material = SCNMaterial.Create();
material.Reflective.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/color_envmap", "png"));
material.Diffuse.Contents = NSColor.Black;
StarNode.Geometry.Materials = new SCNMaterial[] { material };
StarNode.Position = new SCNVector3(0, 5, 0);
StarNode.Pivot = SCNMatrix4.CreateTranslation(0, 0, -0.5f);
StarOutline.ParentNode.AddChildNode(StarNode);
StarNode.EulerAngles = StarOutline.EulerAngles;
StarNode.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy(0, (float)Math.PI * 2, 0, 10.0)));
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
SCNTransaction.SetCompletionBlock(() => {
StarOutline.RemoveFromParentNode();
});
shape.ExtrusionDepth = 1;
StarOutline.Opacity = 0.0f;
SCNTransaction.Commit();
break;
case 5:
//OpenSubdiv
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle("Subdivisions");
TextManager.AddBulletAtLevel("OpenSubdiv", 0);
TextManager.AddCode("#aGeometry.#SubdivisionLevel# = anInteger;#");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
//add boxes
var boxesNode = SCNNode.Create();
var level0 = Utils.SCAddChildNode(boxesNode, "rccarBody_LP", "Scenes.scnassets/car/car_lowpoly", 10);
level0.Position = new SCNVector3(-6, level0.Position.Y, 0);
var label = Utils.SCBoxNode("0", new CGRect(0, 0, 40, 40), NSColor.Orange, 20.0f, true);
label.Position = new SCNVector3(0, -35, 10);
label.Scale = new SCNVector3(0.3f, 0.3f, 0.001f);
level0.AddChildNode(label);
boxesNode.Position = new SCNVector3(0, 0, 30);
var level1 = level0.Clone();
/*foreach (var child in level1.ChildNodes) {
* if (child.Name != "engine_LP") {
* child.Geometry = (SCNGeometry)child.Geometry.Copy ();
* child.Geometry.SubdivisionLevel = 3;
* }
* }*/
level1.Position = new SCNVector3(6, level1.Position.Y, 0);
boxesNode.AddChildNode(level1);
label = Utils.SCBoxNode("2", new CGRect(0, 0, 40, 40), NSColor.Orange, 20.0f, true);
label.Position = new SCNVector3(0, -35, 10);
label.Scale = new SCNVector3(0.3f, 0.3f, 0.001f);
level1.AddChildNode(label);
level0.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy((float)Math.PI * 2, new SCNVector3(0, 1, 0), 45.0)));
level1.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy((float)Math.PI * 2, new SCNVector3(0, 1, 0), 45.0)));
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
SCNTransaction.SetCompletionBlock(() => {
StarNode.RemoveFromParentNode();
});
// move the camera back to its previous position
presentationViewController.CameraNode.Position = new SCNVector3(0, 0, 0);
presentationViewController.CameraPitch.Rotation = new SCNVector4(1, 0, 0, Pitch * (float)Math.PI / 180.0f);
StarNode.Position = new SCNVector3(StarNode.Position.X, StarNode.Position.Y, StarNode.Position.Z - 30);
StarOutline.Position = new SCNVector3(StarOutline.Position.X, StarOutline.Position.Y, StarOutline.Position.Z - 30);
GroundNode.AddChildNode(boxesNode);
//move boxes in
boxesNode.Position = new SCNVector3(0, 0, 3.5f);
SCNTransaction.Commit();
break;
}
}
