public override void SetupSlide(PresentationViewController presentationViewController)
{
TextManager.SetTitle("Fog");
TextManager.SetSubtitle("SCNScene");
TextManager.AddEmptyLine();
TextManager.AddCode("// set some fog\n\naScene.#fogColor# = aColor;\n\naScene.#fogStartDistance# = 50;\n\naScene.#fogEndDistance# = 100;#");
//add palm trees
var palmTree = Utils.SCAddChildNode(GroundNode, "PalmTree", "Scenes.scnassets/palmTree/palm_tree", 15);
palmTree.Rotation = new SCNVector4(1, 0, 0, -(float)(Math.PI / 2));
palmTree.Position = new SCNVector3(4, -1, 0);
palmTree = palmTree.Clone();
GroundNode.AddChildNode(palmTree);
palmTree.Position = new SCNVector3(0, -1, 7);
palmTree = palmTree.Clone();
GroundNode.AddChildNode(palmTree);
palmTree.Position = new SCNVector3(8, -1, 13);
palmTree = palmTree.Clone();
GroundNode.AddChildNode(palmTree);
palmTree.Position = new SCNVector3(13, -1, -7);
palmTree = palmTree.Clone();
GroundNode.AddChildNode(palmTree);
palmTree.Position = new SCNVector3(-13, -1, -14);
palmTree = palmTree.Clone();
GroundNode.AddChildNode(palmTree);
palmTree.Position = new SCNVector3(3, -1, -14);
}
public override void SetupSlide(PresentationViewController presentationViewController)
{
TextManager.SetTitle("Shader Modifiers");
TextManager.AddBulletAtLevel("Inject custom GLSL code", 0);
TextManager.AddBulletAtLevel("Combines with Scene Kit’s shaders", 0);
TextManager.AddBulletAtLevel("Inject at specific stages", 0);
TextManager.AddEmptyLine();
TextManager.AddCode("#aMaterial.#shaderModifiers# = @{ <Entry Point> : <GLSL Code> };#");
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Portability", 0);
TextManager.AddBulletAtLevel("Performance", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
}
}
public override void SetupSlide(PresentationViewController presentationViewController)
{
TextManager.SetTitle("More Information");
TextManager.AddTextAtLevel("Allan Schaffer", 0);
TextManager.AddTextAtLevel("Graphics and Game Technologies Evangelist", 1);
TextManager.AddTextAtLevel("*****@*****.**", 2);
TextManager.AddEmptyLine();
TextManager.AddTextAtLevel("Documentation", 0);
TextManager.AddTextAtLevel("Scene Kit Programming Guide", 1);
TextManager.AddTextAtLevel("http://developer.apple.com", 2);
TextManager.AddEmptyLine();
TextManager.AddTextAtLevel("Apple Developer Forums", 0);
TextManager.AddTextAtLevel("http://devforums.apple.com", 2);
TextManager.AddEmptyLine();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.5f;
var cameraNode = presentationViewController.CameraNode;
switch (index)
{
case 0:
break;
case 1:
// Add a code snippet
TextManager.AddCode("#aCamera.#FocalDistance# = 16.0f; \n"
+ "aCamera.#FocalBlurRadius# = 8.0f;#");
break;
case 2:
// Turn on DOF to illustrate the code snippet
cameraNode.Camera.FocalDistance = 16;
cameraNode.Camera.FocalSize = 1.5f;
cameraNode.Camera.Aperture = 0.3f;
cameraNode.Camera.FocalBlurRadius = 8;
break;
case 3:
// Focus far away
cameraNode.Camera.FocalDistance = 35;
cameraNode.Camera.FocalSize = 4;
cameraNode.Camera.Aperture = 0.1f;
// and update the code snippet
TextManager.FadeOutText(SlideTextManager.TextType.Code);
TextManager.AddEmptyLine();
TextManager.AddCode("#aCamera.#FocalDistance# = #35.0f#; \n"
+ "aCamera.#FocalBlurRadius# = 8.0f;#");
break;
}
SCNTransaction.Commit();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Javascript code example", 0);
TextManager.AddCode("#\n#//allocate a node#\n"
+ "var aNode = SCNNode.Create ();\n\n"
+ "#//change opacity#\n"
+ "aNode.Opacity = 0.5f;\n\n"
+ "#//remove from parent#\n"
+ "aNode.RemoveFromParentNode ();\n\n"
+ "#//animate implicitly#\n"
+ "SCNTransaction.Begin ();\n"
+ "SCNTransaction.AnimationDuration = 1.0f;\n"
+ "aNode.Scale = new SCNVector3 (2, 2, 2);\n"
+ "SCNTransaction.Commit ();#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 2:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.AddBulletAtLevel("Tools", 0);
TextManager.AddBulletAtLevel("Debugging", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.AddBulletAtLevel("Image", 0);
TextManager.AddBulletAtLevel("Name / Path / URL", 1);
TextManager.AddBulletAtLevel("NSImage / UIImage / NSData", 1);
TextManager.AddBulletAtLevel("SKTexture", 1);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
var code = TextManager.AddCode("#material.diffuse.contents = #@\"slate.jpg\"#;#");
code.Position = new SCNVector3(code.Position.X + 6, code.Position.Y - 6.5f, code.Position.Z);
Material.Diffuse.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/slate", "jpg"));
Material.Normal.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/slate-bump", "png"));
Material.Normal.Intensity = 0;
break;
case 2:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
Material.Normal.Intensity = 5.0f;
Material.Specular.Contents = NSColor.Gray;
SCNTransaction.Commit();
code = TextManager.AddCode("#material.normal.contents = #[SKTexture textureByGeneratingNormalMap]#;#");
code.Position = new SCNVector3(code.Position.X + 2, code.Position.Y - 6.5f, code.Position.Z);
break;
case 3:
TextManager.FadeOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Live contents", 0);
TextManager.AddBulletAtLevel("CALayer tree", 1);
TextManager.AddBulletAtLevel("SKScene (new)", 1);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
Material.Normal.Intensity = 2.0f;
SCNTransaction.Commit();
PlayerLayer1 = ConfigurePlayer(NSBundle.MainBundle.PathForResource("Movies/movie1", "mov"), "material-cube");
break;
case 4:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Cube map", 0);
TextManager.AddBulletAtLevel("NSArray of 6 items", 1);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
code = TextManager.AddCode("#material.reflective.contents = #@[aright.png, left.png ... front.png]#;#");
code.Position = new SCNVector3(code.Position.X, code.Position.Y - 9.5f, code.Position.Z);
var image = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/cubemap", "png"), 12, false);
image.Position = new SCNVector3(-10, 9, 0);
image.Opacity = 0;
ContentNode.AddChildNode(image);
Object.Geometry = SCNTorus.Create(W * 0.5f, W * 0.2f);
Material = Object.Geometry.FirstMaterial;
Object.Rotation = new SCNVector4(1, 0, 0, (float)Math.PI / 2);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
var right = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/right", "tga"));
var left = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/left", "tga"));
var top = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/top", "tga"));
var bottom = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/bottom", "tga"));
var back = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/back", "tga"));
var front = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/front", "tga"));
var materialContents = new NSMutableArray();
materialContents.AddObjects(new NSObject[] { right, left, top, bottom, back, front });
Material.Reflective.Contents = materialContents;
Material.Diffuse.Contents = NSColor.Red;
image.Opacity = 1.0f;
SCNTransaction.Commit();
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
SCNTransaction.Begin();
switch (index)
{
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle("Node Attributes");
TextManager.SetSubtitle("Camera");
TextManager.AddBulletAtLevel("Point of view for renderers", 0);
// Start with the "sign" model hidden
var group = ContentNode.FindChildNode("group", true);
group.Scale = new SCNVector3(0, 0, 0);
group.Hidden = true;
break;
case 1:
// Reveal the model (unhide then scale)
group = ContentNode.FindChildNode("group", true);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
group.Hidden = false;
SCNTransaction.Commit();
SCNTransaction.AnimationDuration = 1.0f;
group.Scale = new SCNVector3(1, 1, 1);
break;
case 2:
TextManager.AddCode("#aNode.#Camera# = #SCNCamera#.Create (); \naView.#PointOfView# = aNode;#");
break;
case 3:
// Switch to camera1
SCNTransaction.AnimationDuration = 2.0f;
((SCNView)presentationViewController.View).PointOfView = ContentNode.FindChildNode("camera1", true);
break;
case 4:
// Switch to camera2
SCNTransaction.AnimationDuration = 2.0f;
((SCNView)presentationViewController.View).PointOfView = ContentNode.FindChildNode("camera2", true);
break;
case 5:
// On completion add some code
SCNTransaction.SetCompletionBlock(() => {
TextManager.FadesIn = true;
TextManager.AddEmptyLine();
TextManager.AddCode("#aNode.#Camera#.XFov = angleInDegrees;#");
});
// Switch back to the default camera
SCNTransaction.AnimationDuration = 1.0f;
((SCNView)presentationViewController.View).PointOfView = presentationViewController.CameraNode;
break;
case 6:
// Switch to camera 3
SCNTransaction.AnimationDuration = 1.0f;
var target = ContentNode.FindChildNode("camera3", true);
// Don't let the default transition animate the FOV (we will animate the FOV separately)
var wantedFOV = target.Camera.XFov;
target.Camera.XFov = ((SCNView)presentationViewController.View).PointOfView.Camera.XFov;
// Animate point of view with an ease-in/ease-out function
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
SCNTransaction.AnimationTimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
((SCNView)presentationViewController.View).PointOfView = target;
SCNTransaction.Commit();
// Animate the FOV with the default timing function (for a better looking transition)
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
((SCNView)presentationViewController.View).PointOfView.Camera.XFov = wantedFOV;
SCNTransaction.Commit();
break;
case 7:
// Switch to camera 4
var cameraNode = ContentNode.FindChildNode("camera4", true);
// Don't let the default transition animate the FOV (we will animate the FOV separately)
wantedFOV = cameraNode.Camera.XFov;
cameraNode.Camera.XFov = ((SCNView)presentationViewController.View).PointOfView.Camera.XFov;
// Animate point of view with the default timing function
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
((SCNView)presentationViewController.View).PointOfView = cameraNode;
SCNTransaction.Commit();
// Animate the FOV with an ease-in/ease-out function
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
SCNTransaction.AnimationTimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
((SCNView)presentationViewController.View).PointOfView.Camera.XFov = wantedFOV;
SCNTransaction.Commit();
break;
case 8:
// Quickly switch back to the default camera
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
((SCNView)presentationViewController.View).PointOfView = presentationViewController.CameraNode;
SCNTransaction.Commit();
break;
}
SCNTransaction.Commit();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case (int)ParticleSteps.Fire:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Particle Image", 0);
TextManager.AddBulletAtLevel("Color over life duration", 0);
TextManager.AddBulletAtLevel("Size over life duration", 0);
TextManager.AddBulletAtLevel("Several blend modes", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
var hole = SCNNode.Create();
hole.Geometry = SCNTube.Create(1.7f, 1.9f, 1.5f);
hole.Position = new SCNVector3(0, 0, HOLE_Z);
hole.Scale = new SCNVector3(1, 0, 1);
GroundNode.AddChildNode(hole);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5f;
hole.Scale = new SCNVector3(1, 1, 1);
SCNTransaction.Commit();
var ps = SCNParticleSystem.Create("fire", "Particles");
hole.AddParticleSystem(ps);
Hole = hole;
break;
case (int)ParticleSteps.FireScreen:
ps = Hole.ParticleSystems [0];
ps.BlendMode = SCNParticleBlendMode.Screen;
break;
case (int)ParticleSteps.Local:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Local vs Global", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
Hole.RemoveAllParticleSystems();
Hole2 = Hole.Clone();
Hole2.Geometry = (SCNGeometry)Hole.Geometry.Copy();
Hole2.Position = new SCNVector3(0, -2, HOLE_Z - 4);
GroundNode.AddChildNode(Hole2);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5;
Hole2.Position = new SCNVector3(0, 0, HOLE_Z - 4);
SCNTransaction.Commit();
ps = SCNParticleSystem.Create("reactor", "Particles");
ps.ParticleColorVariation = new SCNVector4(0, 0, 0.5f, 0);
Hole.AddParticleSystem(ps);
var localPs = (SCNParticleSystem)ps.Copy();
localPs.ParticleImage = ps.ParticleImage;
localPs.Local = true;
Hole2.AddParticleSystem(localPs);
var animation = CABasicAnimation.FromKeyPath("position");
animation.From = NSValue.FromVector(new SCNVector3(7, 0, HOLE_Z));
animation.To = NSValue.FromVector(new SCNVector3(-7, 0, HOLE_Z));
animation.BeginTime = CAAnimation.CurrentMediaTime() + 0.75;
animation.Duration = 8;
animation.AutoReverses = true;
animation.RepeatCount = float.MaxValue;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.TimeOffset = animation.Duration / 2;
Hole.AddAnimation(animation, new NSString("animateHole"));
animation = CABasicAnimation.FromKeyPath("position");
animation.From = NSValue.FromVector(new SCNVector3(-7, 0, HOLE_Z - 4));
animation.To = NSValue.FromVector(new SCNVector3(7, 0, HOLE_Z - 4));
animation.BeginTime = CAAnimation.CurrentMediaTime() + 0.75;
animation.Duration = 8;
animation.AutoReverses = true;
animation.RepeatCount = float.MaxValue;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.TimeOffset = animation.Duration / 2;
Hole2.AddAnimation(animation, new NSString("animateHole"));
break;
case (int)ParticleSteps.Gravity:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Affected by gravity", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
Hole2.RemoveAllParticleSystems();
Hole2.RunAction(SCNAction.Sequence(new SCNAction[] {
SCNAction.ScaleTo(0, 0.5),
SCNAction.RemoveFromParentNode()
}));
Hole.RemoveAllParticleSystems();
Hole.RemoveAnimation(new NSString("animateHole"), 0.5f);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5;
var tube = (SCNTube)Hole.Geometry;
tube.InnerRadius = 0.3f;
tube.OuterRadius = 0.4f;
tube.Height = 1.0f;
SCNTransaction.Commit();
ps = SCNParticleSystem.Create("sparks", "Particles");
Hole.RemoveAllParticleSystems();
Hole.AddParticleSystem(ps);
foreach (var child in ((SCNView)presentationViewController.View).Scene.RootNode.ChildNodes)
{
if (child.Geometry != null)
{
if (child.Geometry.GetType() == typeof(SCNFloor))
{
FloorNode = child;
}
}
}
/*FloorNode = ((SCNView)presentationViewController.View).Scene.RootNode.FindNodes ((SCNNode child, out bool stop) => {
* stop = false;
* if (child.Geometry != null)
* stop = (child.Geometry.GetType () == typeof(SCNFloor));
* return stop;
* });*/
/*FloorNode = [presentationViewController.view.scene.rootNode childNodesPassingTest:^BOOL(SCNNode *child, BOOL *stop) {
* return [child.geometry isKindOfClass:[SCNFloor class]];
* }][0];*/
ps.ColliderNodes = new SCNNode[] { FloorNode };
break;
case (int)ParticleSteps.Collider:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Affected by colliders", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
var boxNode = SCNNode.Create();
boxNode.Geometry = SCNBox.Create(5, 0.2f, 5, 0);
boxNode.Position = new SCNVector3(0, 7, HOLE_Z);
boxNode.Geometry.FirstMaterial.Emission.Contents = NSColor.DarkGray;
GroundNode.AddChildNode(boxNode);
ps = Hole.ParticleSystems [0];
ps.ColliderNodes = new SCNNode[] { FloorNode, boxNode };
animation = CABasicAnimation.FromKeyPath("eulerAngles");
animation.From = NSValue.FromVector(new SCNVector3(0, 0, NMath.PI / 4 * 1.7f));
animation.To = NSValue.FromVector(new SCNVector3(0, 0, -NMath.PI / 4 * 1.7f));
animation.BeginTime = CAAnimation.CurrentMediaTime() + 0.5;
animation.Duration = 2;
animation.AutoReverses = true;
animation.RepeatCount = float.MaxValue;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.TimeOffset = animation.Duration / 2;
boxNode.AddAnimation(animation, new NSString("animateHole"));
BoxNode = boxNode;
break;
case (int)ParticleSteps.Fields:
Hole.RemoveAllParticleSystems();
Hole.RunAction(SCNAction.Sequence(new SCNAction[] {
SCNAction.ScaleTo(0, 0.75),
SCNAction.RemoveFromParentNode()
}));
BoxNode.RunAction(SCNAction.Sequence(new SCNAction[] {
SCNAction.MoveBy(0, 15, 0, 1.0),
SCNAction.RemoveFromParentNode()
}));
var particleHolder = SCNNode.Create();
particleHolder.Position = new SCNVector3(0, 20, HOLE_Z);
GroundNode.AddChildNode(particleHolder);
ParticleHolder = particleHolder;
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Affected by physics fields", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
ps = SCNParticleSystem.Create("snow", "Particles");
ps.AffectedByPhysicsFields = true;
ParticleHolder.AddParticleSystem(ps);
Snow = ps;
//physics field
var field = SCNPhysicsField.CreateTurbulenceField(50, 1);
field.HalfExtent = new SCNVector3(20, 20, 20);
field.Strength = 4.0f;
var fieldOwner = SCNNode.Create();
fieldOwner.Position = new SCNVector3(0, 5, HOLE_Z);
GroundNode.AddChildNode(fieldOwner);
fieldOwner.PhysicsField = field;
FieldOwner = fieldOwner;
ps.ColliderNodes = new SCNNode[] { FloorNode };
break;
case (int)ParticleSteps.FieldsVortex:
VortexFieldOwner = SCNNode.Create();
VortexFieldOwner.Position = new SCNVector3(0, 5, HOLE_Z);
GroundNode.AddChildNode(VortexFieldOwner);
//tornado
var worldOrigin = new SCNVector3(FieldOwner.WorldTransform.M41, FieldOwner.WorldTransform.M42, FieldOwner.WorldTransform.M43);
var worldAxis = new SCNVector3(0, 1, 0);
var vortex = SCNPhysicsField.CustomField((SCNVector3 position, SCNVector3 velocity, float mass, float charge, double timeInSeconds) => {
var l = new SCNVector3();
l.X = worldOrigin.X - position.X;
l.Z = worldOrigin.Z - position.Z;
SCNVector3 t = Cross(worldAxis, l);
var d2 = (l.X * l.X + l.Z * l.Z);
var vs = (nfloat)(VS / Math.Sqrt(d2));
var fy = (nfloat)(1.0 - (Math.Min(1.0, (position.Y / 15.0))));
return(new SCNVector3(t.X * vs + l.X * (nfloat)VW * fy, 0, t.Z * vs + l.Z * (nfloat)VW * fy));
});
vortex.HalfExtent = new SCNVector3(100, 100, 100);
VortexFieldOwner.PhysicsField = vortex;
break;
case (int)ParticleSteps.SubSystems:
FieldOwner.RemoveFromParentNode();
ParticleHolder.RemoveAllParticleSystems();
Snow.DampingFactor = -1;
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Sub-particle system on collision", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
ps = SCNParticleSystem.Create("rain", "Particles");
var pss = SCNParticleSystem.Create("plok", "Particles");
pss.IdleDuration = 0;
pss.Loops = false;
ps.SystemSpawnedOnCollision = pss;
ParticleHolder.AddParticleSystem(ps);
ps.ColliderNodes = new SCNNode[] { FloorNode };
break;
case (int)ParticleSteps.Confetti:
ParticleHolder.RemoveAllParticleSystems();
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Custom blocks", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
ps = SCNParticleSystem.Create();
ps.EmitterShape = SCNBox.Create(20, 9, 5, 0);
ps.BirthRate = 100;
ps.ParticleLifeSpan = 10;
ps.ParticleLifeSpanVariation = 0;
ps.SpreadingAngle = 20;
ps.ParticleSize = 0.25f;
ps.ParticleVelocity = 10;
ps.ParticleVelocityVariation = 19;
ps.BirthDirection = SCNParticleBirthDirection.Constant;
ps.EmittingDirection = new SCNVector3(0, -1, 0);
ps.BirthLocation = SCNParticleBirthLocation.Volume;
ps.ParticleImage = new NSImage(NSBundle.MainBundle.PathForResource("Particles/confetti", "png"));
ps.LightingEnabled = true;
ps.OrientationMode = SCNParticleOrientationMode.Free;
ps.SortingMode = SCNParticleSortingMode.Distance;
ps.ParticleAngleVariation = 180;
ps.ParticleAngularVelocity = 200;
ps.ParticleAngularVelocityVariation = 400;
ps.ParticleColor = NSColor.Green;
ps.ParticleColorVariation = new SCNVector4(0.2f, 0.1f, 0.1f, 0);
ps.ParticleBounce = 0;
ps.ParticleFriction = 0.6f;
ps.ColliderNodes = new SCNNode[] { FloorNode };
ps.BlendMode = SCNParticleBlendMode.Alpha;
var floatAnimation = CAKeyFrameAnimation.FromKeyPath("");
floatAnimation.Values = new NSNumber[] { 1, 1, 0 };
floatAnimation.KeyTimes = new NSNumber[] { 0, 0.9f, 1 };
floatAnimation.Duration = 1.0f;
floatAnimation.Additive = false;
//ps.PropertyControllers = @{ SCNParticlePropertyOpacity: [SCNParticlePropertyController controllerWithAnimation:floatAnimation] };
//ps.HandleEvent (SCNParticleEvent.Birth,
/*[ps handleEvent:SCNParticleEventBirth forProperties:@[SCNParticlePropertyColor] withBlock:^(void **data, size_t *dataStride, uint32_t *indices , NSInteger count) {
*
* for (int i = 0; i < count; ++i) {
* var col = (float *)((char *)data[0] + dataStride[0] * i);
* if (rand() & 0x1) { // swith green for red
* col[0] = col[1];
* col[1] = 0;
* }
*
* }
* }];*/
/*[ps handleEvent:SCNParticleEventCollision forProperties:@[SCNParticlePropertyAngle, SCNParticlePropertyRotationAxis, SCNParticlePropertyAngularVelocity, SCNParticlePropertyVelocity, SCNParticlePropertyContactNormal] withBlock:^(void **data, size_t *dataStride, uint32_t *indices , NSInteger count) {
*
* for (NSInteger i = 0; i < count; ++i) {
* // fix orientation
* float *angle = (float *)((char *)data[0] + dataStride[0] * indices[i]);
* float *axis = (float *)((char *)data[1] + dataStride[1] * indices[i]);
*
* float *colNrm = (float *)((char *)data[4] + dataStride[4] * indices[i]);
* SCNVector3 collisionNormal = {colNrm[0], colNrm[1], colNrm[2]};
* SCNVector3 cp = SCNVector3CrossProduct(collisionNormal, SCNVector3Make(0, 0, 1));
* CGFloat cpLen = SCNVector3Length(cp);
* angle[0] = asin(cpLen);
*
* axis[0] = cp.x / cpLen;
* axis[1] = cp.y / cpLen;
* axis[2] = cp.z / cpLen;
*
* // kill angular rotation
* float *angVel = (float *)((char *)data[2] + dataStride[2] * indices[i]);
* angVel[0] = 0;
*
* if (colNrm[1] > 0.4) {
* float *vel = (float *)((char *)data[3] + dataStride[3] * indices[i]);
* vel[0] = 0;
* vel[1] = 0;
* vel[2] = 0;
* }
* }
* }];*/
ParticleHolder.AddParticleSystem(ps);
break;
case (int)ParticleSteps.EmitterCube:
ParticleHolder.RemoveAllParticleSystems();
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Emitter shape", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
ParticleHolder.RemoveFromParentNode();
ps = SCNParticleSystem.Create("emitters", "Particles");
ps.Local = true;
ParticleHolder.AddParticleSystem(ps);
var node = SCNNode.Create();
node.Position = new SCNVector3(3, 6, HOLE_Z);
node.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy(NMath.PI * 2, new SCNVector3(0.3f, 1, 0), 8)));
GroundNode.AddChildNode(node);
Bokeh = ps;
node.AddParticleSystem(ps);
break;
case (int)ParticleSteps.EmitterSphere:
Bokeh.EmitterShape = SCNSphere.Create(5);
break;
case (int)ParticleSteps.EmitterTorus:
Bokeh.EmitterShape = SCNTorus.Create(5, 1);
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case (int)TechniqueSteps.Intro:
break;
case (int)TechniqueSteps.Code:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
PlistGroup.RemoveFromParentNode();
TextManager.AddEmptyLine();
TextManager.AddCode("#// Load a technique\nSCNTechnique *technique = [SCNTechnique #techniqueWithDictionary#:aDictionary];\n\n\n"
+ "// Chain techniques\ntechnique = [SCNTechnique #techniqueBySequencingTechniques#:@[t1, t2 ...];\n\n\n\t\t\t\t\t"
+ "// Set a technique\naSCNView.#technique# = technique;#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case (int)TechniqueSteps.Files:
Pass2.RemoveFromParentNode();
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Load from Plist", 0);
TextManager.FlipInText(SlideTextManager.TextType.Code);
PlistGroup = SCNNode.Create();
ContentNode.AddChildNode(PlistGroup);
//add plist icon
var node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/plist", "png"), 8, true);
node.Position = new SCNVector3(0, 3.7f, 10);
PlistGroup.AddChildNode(node);
//add plist icon
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/vsh", "png"), 3, true);
for (var i = 0; i < 5; i++)
{
node = node.Clone();
node.Position = new SCNVector3(6, 1.4f, 10 - i);
PlistGroup.AddChildNode(node);
}
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/fsh", "png"), 3, true);
for (var i = 0; i < 5; i++)
{
node = node.Clone();
node.Position = new SCNVector3(9, 1.4f, 10 - i);
PlistGroup.AddChildNode(node);
}
break;
case (int)TechniqueSteps.Plist:
//add plist icon
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/technique", "png"), 9, true);
node.Position = new SCNVector3(0, 3.5f, 10.1f);
node.Opacity = 0.0f;
PlistGroup.AddChildNode(node);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
node.Position = new SCNVector3(0, 3.5f, 11);
node.Opacity = 1.0f;
SCNTransaction.Commit();
break;
case (int)TechniqueSteps.Pass1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/pass1", "png"), 15, true);
node.Position = new SCNVector3(0, 3.5f, 10.1f);
node.Opacity = 0.0f;
ContentNode.AddChildNode(node);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
node.Position = new SCNVector3(0, 3.5f, 11);
node.Opacity = 1.0f;
SCNTransaction.Commit();
Pass1 = node;
break;
case (int)TechniqueSteps.Passes3:
Pass1.RemoveFromParentNode();
Pass2 = SCNNode.Create();
Pass2.Opacity = 0.0f;
Pass2.Position = new SCNVector3(0, 3.5f, 6);
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/pass2", "png"), 8, true);
node.Position = new SCNVector3(-8, 0, 0);
Pass2.AddChildNode(node);
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/pass3", "png"), 8, true);
node.Position = new SCNVector3(0, 0, 0);
Pass2.AddChildNode(node);
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/pass4", "png"), 8, true);
node.Position = new SCNVector3(8, 0, 0);
Pass2.AddChildNode(node);
ContentNode.AddChildNode(Pass2);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
Pass2.Position = new SCNVector3(0, 3.5f, 9);
Pass2.Opacity = 1.0f;
SCNTransaction.Commit();
break;
case (int)TechniqueSteps.Passes3Connected:
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Connect pass inputs / outputs", 0);
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/link", "png"), 8.75f, true);
node.Position = new SCNVector3(0.01f, -2, 0);
node.Opacity = 0.0f;
Pass2.AddChildNode(node);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
var n = Pass2.ChildNodes [0];
n.Position = new SCNVector3(-7.5f, -0.015f, 0);
n = Pass2.ChildNodes [2];
n.Position = new SCNVector3(7.5f, 0.02f, 0);
node.Opacity = 1.0f;
SCNTransaction.Commit();
break;
case (int)TechniqueSteps.Sample:
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("Example: simple depth of field");
TextManager.FlipInText(SlideTextManager.TextType.Code);
Pass3 = SCNNode.Create();
node = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/pass5", "png"), 15, true);
node.Position = new SCNVector3(-3, 5, 10.1f);
node.Opacity = 0.0f;
Pass3.AddChildNode(node);
var t0 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/technique0", "png"), 4, false);
t0.Position = new SCNVector3(-8.5f, 1.5f, 10.1f);
t0.Opacity = 0.0f;
Pass3.AddChildNode(t0);
var t1 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/technique1", "png"), 4, false);
t1.Position = new SCNVector3(-3.6f, 1.5f, 10.1f);
t1.Opacity = 0.0f;
Pass3.AddChildNode(t1);
var t2 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/technique2", "png"), 4, false);
t2.Position = new SCNVector3(1.4f, 1.5f, 10.1f);
t2.Opacity = 0.0f;
Pass3.AddChildNode(t2);
var t3 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/technique/technique3", "png"), 8, false);
t3.Position = new SCNVector3(8, 5, 10.1f);
t3.Opacity = 0.0f;
Pass3.AddChildNode(t3);
ContentNode.AddChildNode(Pass3);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
node.Opacity = 1.0f;
t0.Opacity = 1.0f;
t1.Opacity = 1.0f;
t2.Opacity = 1.0f;
t3.Opacity = 1.0f;
SCNTransaction.Commit();
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
// Animate by default
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
switch (index)
{
case 0:
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddCode("#// Rotate forever\n"
+ "[aNode #runAction:#\n"
+ " [SCNAction repeatActionForever:\n"
+ " [SCNAction rotateByX:0 y:M_PI*2 z:0 duration:5.0]]];#");
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 2:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.AddBulletAtLevel("Move", 0);
TextManager.AddBulletAtLevel("Rotate", 0);
TextManager.AddBulletAtLevel("Scale", 0);
TextManager.AddBulletAtLevel("Opacity", 0);
TextManager.AddBulletAtLevel("Remove", 0);
TextManager.AddBulletAtLevel("Wait", 0);
TextManager.AddBulletAtLevel("Custom block", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
case 3:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Directly targets the render tree", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
break;
case 4:
TextManager.AddBulletAtLevel("node.position / node.presentationNode.position", 0);
//labels
var label1 = TextManager.AddTextAtLevel("Action", 0);
label1.Position = new SCNVector3(-15, 3, 0);
var label2 = TextManager.AddTextAtLevel("Animation", 0);
label2.Position = new SCNVector3(-15, -2, 0);
//animation
var animNode = SCNNode.Create();
var cubeSize = 4.0f;
animNode.Position = new SCNVector3(-5, cubeSize / 2, 0);
var cube = SCNBox.Create(cubeSize, cubeSize, cubeSize, 0.05f * cubeSize);
cube.FirstMaterial.Diffuse.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/texture", "png"));
cube.FirstMaterial.Diffuse.MipFilter = SCNFilterMode.Linear;
cube.FirstMaterial.Diffuse.WrapS = SCNWrapMode.Repeat;
cube.FirstMaterial.Diffuse.WrapT = SCNWrapMode.Repeat;
animNode.Geometry = cube;
ContentNode.AddChildNode(animNode);
SCNTransaction.Begin();
SCNNode animPosIndicator = null;
SCNAnimationEvent startEvt = SCNAnimationEvent.Create(0, (CAAnimation animation, NSObject animatedObject, bool playingBackward) => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
animPosIndicator.Position = new SCNVector3(10, animPosIndicator.Position.Y, animPosIndicator.Position.Z);
SCNTransaction.Commit();
});
SCNAnimationEvent endEvt = SCNAnimationEvent.Create(1, (CAAnimation animation, NSObject animatedObject, bool playingBackward) => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
animPosIndicator.Position = new SCNVector3(-5, animPosIndicator.Position.Y, animPosIndicator.Position.Z);
SCNTransaction.Commit();
});
var anim = CABasicAnimation.FromKeyPath("position.x");
anim.Duration = 3;
anim.From = new NSNumber(0.0);
anim.To = new NSNumber(15.0);
anim.Additive = true;
anim.AutoReverses = true;
anim.AnimationEvents = new SCNAnimationEvent[] { startEvt, endEvt };
anim.RepeatCount = float.MaxValue;
animNode.AddAnimation(anim, new NSString("cubeAnimation"));
//action
var actionNode = SCNNode.Create();
actionNode.Position = new SCNVector3(-5, cubeSize * 1.5f + 1, 0);
actionNode.Geometry = cube;
ContentNode.AddChildNode(actionNode);
var mv = SCNAction.MoveBy(15, 0, 0, 3);
actionNode.RunAction(SCNAction.RepeatActionForever(SCNAction.Sequence(new SCNAction[] {
mv,
mv.ReversedAction()
})));
//position indicator
var positionIndicator = SCNNode.Create();
positionIndicator.Geometry = SCNCylinder.Create(0.5f, 0.01f);
positionIndicator.Geometry.FirstMaterial.Diffuse.Contents = NSColor.Red;
positionIndicator.Geometry.FirstMaterial.LightingModelName = SCNLightingModel.Constant;
positionIndicator.EulerAngles = new SCNVector3(NMath.PI / 2, 0, 0);
positionIndicator.Position = new SCNVector3(0, 0, cubeSize * 0.5f);
actionNode.AddChildNode(positionIndicator);
//anim pos indicator
animPosIndicator = positionIndicator.Clone();
animPosIndicator.Position = new SCNVector3(5, cubeSize / 2, cubeSize * 0.5f);
ContentNode.AddChildNode(animPosIndicator);
SCNTransaction.Commit();
break;
}
SCNTransaction.Commit();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.5f;
var cameraNode = presentationViewController.CameraNode;
switch (index)
{
case 0:
break;
case 1:
// Add a code snippet
TextManager.AddCode("#aCamera.#FocalDistance# = 16.0f; \n"
+ "aCamera.#FocalBlurRadius# = 8.0f;#");
break;
case 2:
// Turn on DOF to illustrate the code snippet
cameraNode.Camera.FocalDistance = 16;
cameraNode.Camera.FocalSize = 1.5f;
cameraNode.Camera.Aperture = 0.3f;
cameraNode.Camera.FocalBlurRadius = 8;
break;
case 3:
// Focus far away
cameraNode.Camera.FocalDistance = 35;
cameraNode.Camera.FocalSize = 4;
cameraNode.Camera.Aperture = 0.1f;
// and update the code snippet
TextManager.FadeOutText(SlideTextManager.TextType.Code);
TextManager.AddEmptyLine();
TextManager.AddCode("#aCamera.#FocalDistance# = #35.0f#; \n"
+ "aCamera.#FocalBlurRadius# = 8.0f;#");
break;
case 4:
// Remove the code
TextManager.FadeOutText(SlideTextManager.TextType.Subtitle);
TextManager.FadeOutText(SlideTextManager.TextType.Code);
// Move the camera and adjust tje focal distance
presentationViewController.CameraHandle.Position = presentationViewController.CameraHandle.ConvertPositionToNode(new SCNVector3(0, -3, -6), presentationViewController.CameraHandle.ParentNode);
cameraNode.Camera.FocalDistance = 27;
// Move the light back a little
presentationViewController.MainLight.Position = presentationViewController.MainLight.ConvertPositionToNode(new SCNVector3(0, 3, 6), presentationViewController.MainLight.ParentNode);
break;
case 5:
// Focus near
cameraNode.Camera.FocalDistance = 10;
cameraNode.Camera.FocalSize = 1;
cameraNode.Camera.Aperture = 0.3f;
break;
}
SCNTransaction.Commit();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
break;
case 1:
TextManager.HighlightBullet(0);
StaticShadowNode.Opacity = 1;
var node = TextManager.AddCode("#aMaterial.#multiply#.contents = aShadowMap;#");
node.Position = new SCNVector3(node.Position.X, node.Position.Y - 4, node.Position.Z);
foreach (var child in node.ChildNodes)
{
child.RenderingOrder = 1;
foreach (var m in child.Geometry.Materials)
{
m.ReadsFromDepthBuffer = false;
}
}
break;
case 2:
//move the tree
PalmTree.RunAction(SCNAction.RotateBy(0, NMath.PI * 4, 0, 8));
break;
case 3:
TextManager.FadesIn = true;
TextManager.FadeOutText(SlideTextManager.TextType.Code);
TextManager.AddEmptyLine();
node = TextManager.AddCode("#aLight.#castsShadow# = YES;#");
foreach (SCNNode child in node.ChildNodes)
{
child.RenderingOrder = 1;
foreach (SCNMaterial m in child.Geometry.Materials)
{
m.ReadsFromDepthBuffer = false;
m.WritesToDepthBuffer = false;
}
}
node.Position = new SCNVector3(node.Position.X, node.Position.Y - 6, node.Position.Z);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
var spot = presentationViewController.SpotLight;
OldSpotShadowColor = spot.Light.ShadowColor;
spot.Light.ShadowColor = NSColor.Black;
spot.Light.ShadowRadius = 3;
var tp = TextManager.TextNode.Position;
var superNode = presentationViewController.CameraNode.ParentNode.ParentNode;
var p0 = GroundNode.ConvertPositionToNode(SCNVector3.Zero, null);
var p1 = GroundNode.ConvertPositionToNode(new SCNVector3(20, 0, 0), null);
var tr = new SCNVector3(p1.X - p0.X, p1.Y - p0.Y, p1.Z - p0.Z);
var p = superNode.Position;
p.X += tr.X;
p.Y += tr.Y;
p.Z += tr.Z;
tp.X += 20;
tp.Y += 0;
tp.Z += 0;
superNode.Position = p;
TextManager.TextNode.Position = tp;
SCNTransaction.Commit();
TextManager.HighlightBullet(1);
break;
case 4:
//move the light
var lightPivot = SCNNode.Create();
lightPivot.Position = Character.Position;
GroundNode.AddChildNode(lightPivot);
spot = presentationViewController.SpotLight;
OldSpotPosition = spot.Position;
OldSpotParent = spot.ParentNode;
OldSpotZNear = spot.Light.ZNear;
spot.Light.ZNear = 20;
spot.Position = lightPivot.ConvertPositionFromNode(spot.Position, spot.ParentNode);
lightPivot.AddChildNode(spot);
//add an object to represent the light
var lightModel = SCNNode.Create();
var lightHandle = SCNNode.Create();
var cone = SCNCone.Create(0, 0.5f, 1);
cone.RadialSegmentCount = 10;
cone.HeightSegmentCount = 5;
lightModel.Geometry = cone;
lightModel.Geometry.FirstMaterial.Emission.Contents = NSColor.Yellow;
lightHandle.Position = new SCNVector3(spot.Position.X * DIST, spot.Position.Y * DIST, spot.Position.Z * DIST);
lightModel.CastsShadow = false;
lightModel.EulerAngles = new SCNVector3(NMath.PI / 2, 0, 0);
lightHandle.AddChildNode(lightModel);
lightHandle.Constraints = new SCNConstraint[] { SCNLookAtConstraint.Create(Character) };
lightPivot.AddChildNode(lightHandle);
LightHandle = lightHandle;
var animation = CABasicAnimation.FromKeyPath("eulerAngles.z");
animation.From = new NSNumber((nfloat)(Math.PI / 4) * 1.7f);
animation.To = new NSNumber((nfloat)(-Math.PI / 4) * 0.3f);
animation.Duration = 4;
animation.AutoReverses = true;
animation.RepeatCount = float.MaxValue;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.TimeOffset = animation.Duration / 2;
lightPivot.AddAnimation(animation, new NSString("lightAnim"));
break;
case 5:
TextManager.FadeOutText(SlideTextManager.TextType.Code);
var text = TextManager.AddCode("#aLight.#shadowMode# =\n#SCNShadowModeModulated#;\naLight.#gobo# = anImage;#");
text.Position = new SCNVector3(text.Position.X, text.Position.Y - 6, text.Position.Z);
text.EnumerateChildNodes((SCNNode child, out bool stop) => {
stop = false;
child.RenderingOrder = 1;
foreach (var m in child.Geometry.Materials)
{
m.ReadsFromDepthBuffer = false;
m.WritesToDepthBuffer = false;
}
return(stop);
});
LightHandle.RemoveFromParentNode();
RestoreSpotPosition(presentationViewController);
TextManager.HighlightBullet(2);
spot = presentationViewController.SpotLight;
spot.Light.CastsShadow = false;
var head = Character.FindChildNode("Bip001_Pelvis", true);
node = SCNNode.Create();
node.Light = SCNLight.Create();
node.Light.LightType = SCNLightType.Spot;
node.Light.SpotOuterAngle = 30;
node.Constraints = new SCNConstraint[] { SCNLookAtConstraint.Create(head) };
node.Position = new SCNVector3(0, 220, 0);
node.Light.ZNear = 10;
node.Light.ZFar = 1000;
node.Light.Gobo.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/blobShadow", "jpg"));
node.Light.Gobo.Intensity = 0.65f;
node.Light.ShadowMode = SCNShadowMode.Modulated;
//exclude character from shadow
node.Light.CategoryBitMask = 0x1;
Character.FindNodes((SCNNode child, out bool stop) => {
stop = false;
child.CategoryBitMask = 0x2;
return(stop);
});
Projector = node;
Character.AddChildNode(node);
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle("Performance");
TextManager.SetSubtitle("Copying");
TextManager.AddBulletAtLevel("Attributes are shared by default", 0);
TextManager.AddBulletAtLevel("Unshare if needed", 0);
TextManager.AddBulletAtLevel("Copying geometries is cheap", 0);
break;
case 1:
// New "Node B" box
var nodeB = Utils.SCBoxNode("Node B", new CGRect(-55, -36, 110, 50), GreenColor, 10, true);
nodeB.Name = "nodeB";
nodeB.Position = new SCNVector3(140, 0, 0);
nodeB.Opacity = 0;
var nodeA = ContentNode.FindChildNode("nodeA", true);
nodeA.AddChildNode(nodeB);
// Arrow from "Root Node" to "Node B"
var arrowNode = SCNNode.Create();
arrowNode.Geometry = SCNShape.Create(Utils.SCArrowBezierPath(new CGSize(140, 3), new CGSize(10, 14), 4, true), 0);
arrowNode.Position = new SCNVector3(-130, 60, 0);
arrowNode.Rotation = new SCNVector4(0, 0, 1, -(float)(Math.PI * 0.12f));
arrowNode.Geometry.FirstMaterial.Diffuse.Contents = GreenColor;
nodeB.AddChildNode(arrowNode);
// Arrow from "Node B" to the shared geometry
arrowNode = SCNNode.Create();
arrowNode.Name = "arrow-shared-geometry";
arrowNode.Geometry = SCNShape.Create(Utils.SCArrowBezierPath(new CGSize(140, 3), new CGSize(10, 14), 4, false), 0);
arrowNode.Position = new SCNVector3(0, -28, 0);
arrowNode.Rotation = new SCNVector4(0, 0, 1, (float)(Math.PI * 1.12f));
arrowNode.Geometry.FirstMaterial.Diffuse.Contents = PurpleColor;
nodeB.AddChildNode(arrowNode);
// Reveal
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
nodeB.Opacity = 1.0f;
// Show the related code
TextManager.AddCode("#// Copy a node \n"
+ "var nodeB = nodeA.#Copy# ();#");
SCNTransaction.Commit();
break;
case 2:
var geometryNodeA = ContentNode.FindChildNode("geometry", true);
var oldArrowNode = ContentNode.FindChildNode("arrow-shared-geometry", true);
// New "Geometry" box
var geometryNodeB = Utils.SCBoxNode("Geometry", new CGRect(-55, -20, 110, 40), PurpleColor, 10, true);
geometryNodeB.Position = new SCNVector3(140, 0, 0);
geometryNodeB.Opacity = 0;
geometryNodeA.AddChildNode(geometryNodeB);
// Arrow from "Node B" to the new geometry
arrowNode = SCNNode.Create();
arrowNode.Geometry = SCNShape.Create(Utils.SCArrowBezierPath(new CGSize(55, 3), new CGSize(10, 14), 4, false), 0);
arrowNode.Position = new SCNVector3(0, 75, 0);
arrowNode.Rotation = new SCNVector4(0, 0, 1, -(float)(Math.PI * 0.5f));
arrowNode.Geometry.FirstMaterial.Diffuse.Contents = PurpleColor;
geometryNodeB.AddChildNode(arrowNode);
// Arrow from the new geometry to "Material"
arrowNode = SCNNode.Create();
arrowNode.Name = "arrow-shared-material";
arrowNode.Geometry = SCNShape.Create(Utils.SCArrowBezierPath(new CGSize(140, 3), new CGSize(10, 14), 4, true), 0);
arrowNode.Position = new SCNVector3(-130, -80, 0);
arrowNode.Rotation = new SCNVector4(0, 0, 1, (float)(Math.PI * 0.12f));
arrowNode.Geometry.FirstMaterial.Diffuse.Contents = RedColor;
geometryNodeB.AddChildNode(arrowNode);
// Reveal
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
geometryNodeB.Opacity = 1.0f;
oldArrowNode.Opacity = 0.0f;
// Show the related code
TextManager.AddEmptyLine();
TextManager.AddCode("#// Unshare geometry \n"
+ "nodeB.Geometry = nodeB.Geometry.#Copy# ();#");
SCNTransaction.Commit();
break;
case 3:
var materialANode = ContentNode.FindChildNode("material", true);
oldArrowNode = ContentNode.FindChildNode("arrow-shared-material", true);
// New "Material" box
var materialBNode = Utils.SCBoxNode("Material", new CGRect(-55, -20, 110, 40), NSColor.Orange, 10, true);
materialBNode.Position = new SCNVector3(140, 0, 0);
materialBNode.Opacity = 0;
materialANode.AddChildNode(materialBNode);
// Arrow from the unshared geometry to the new material
arrowNode = SCNNode.Create();
arrowNode.Geometry = SCNShape.Create(Utils.SCArrowBezierPath(new CGSize(55, 3), new CGSize(10, 14), 4, false), 0);
arrowNode.Position = new SCNVector3(0, 75, 0);
arrowNode.Rotation = new SCNVector4(0, 0, 1, -(float)(Math.PI * 0.5f));
arrowNode.Geometry.FirstMaterial.Diffuse.Contents = NSColor.Orange;
materialBNode.AddChildNode(arrowNode);
// Reveal
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
materialBNode.Opacity = 1.0f;
oldArrowNode.Opacity = 0.0f;
SCNTransaction.Commit();
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
SCNTransaction.Begin();
switch (index)
{
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle("API");
TextManager.AddEmptyLine();
TextManager.AddCode("#aMaterial.#ShaderModifiers# = new SCNShaderModifiers {\n"
+ " <Entry Point> = <GLSL Code>\n"
+ "};#");
TextManager.FlipInText(SlideTextManager.TextType.Code);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
break;
case 2:
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.AddEmptyLine();
TextManager.AddCode("#aMaterial.#ShaderModifiers# = new SCNShaderModifiers { \n"
+ " EntryCGPointragment = \n"
+ " new Vector3 (1.0f) - #output#.Color.GetRgb () \n"
+ "};#");
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 3:
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("Entry points");
TextManager.AddBulletAtLevel("Geometry", 0);
TextManager.AddBulletAtLevel("Surface", 0);
TextManager.AddBulletAtLevel("Lighting", 0);
TextManager.AddBulletAtLevel("Fragment", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
break;
case 4:
SCNTransaction.AnimationDuration = 1;
TextManager.HighlightBullet(0);
// Create a (very) tesselated plane
var plane = SCNPlane.Create(10, 10);
plane.WidthSegmentCount = 200;
plane.HeightSegmentCount = 200;
// Setup the material (same as the floor)
plane.FirstMaterial.Diffuse.WrapS = SCNWrapMode.Mirror;
plane.FirstMaterial.Diffuse.WrapT = SCNWrapMode.Mirror;
plane.FirstMaterial.Diffuse.Contents = new NSImage("/Library/Desktop Pictures/Circles.jpg");
plane.FirstMaterial.Diffuse.ContentsTransform = SCNMatrix4.CreateFromAxisAngle(new SCNVector3(0, 0, 1), NMath.PI / 4);
plane.FirstMaterial.Specular.Contents = NSColor.White;
plane.FirstMaterial.Reflective.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/envmap", "jpg"));
plane.FirstMaterial.Reflective.Intensity = 0.0f;
// Create a node to hold that plane
PlaneNode = SCNNode.Create();
PlaneNode.Position = new SCNVector3(0, 0.1f, 0);
PlaneNode.Rotation = new SCNVector4(1, 0, 0, -(float)(Math.PI / 2));
PlaneNode.Scale = new SCNVector3(5, 5, 1);
PlaneNode.Geometry = plane;
ContentNode.AddChildNode(PlaneNode);
// Attach the "wave" shader modifier, and set an initial intensity value of 0
var shaderFile = NSBundle.MainBundle.PathForResource("Shaders/wave", "shader");
var geometryModifier = File.ReadAllText(shaderFile);
PlaneNode.Geometry.ShaderModifiers = new SCNShaderModifiers {
EntryPointGeometry = geometryModifier
};
PlaneNode.Geometry.SetValueForKey(new NSNumber(0.0f), new NSString("intensity"));
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
// Show the pseudo code for the deformation
var textNode = TextManager.AddCode("#float len = #geometry#.Position.Xy.Length;\n"
+ "aMaterial.ShaderModifiers = new SCNShaderModifiers { \n"
+ " #EntryPointGeometry# = geometry.Position.Y \n"
+ "};#");
textNode.Position = new SCNVector3(8.5f, 7, 0);
SCNTransaction.Commit();
break;
case 5:
// Progressively increase the intensity
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 2;
PlaneNode.Geometry.SetValueForKey(new NSNumber(1.0f), new NSString("intensity"));
PlaneNode.Geometry.FirstMaterial.Reflective.Intensity = 0.3f;
SCNTransaction.Commit();
// Redraw forever
((SCNView)presentationViewController.View).Playing = true;
((SCNView)presentationViewController.View).Loops = true;
break;
case 6:
SCNTransaction.AnimationDuration = 1;
TextManager.FadeOutText(SlideTextManager.TextType.Code);
// Hide the plane used for the previous modifier
PlaneNode.Geometry.SetValueForKey(new NSNumber(0.0f), new NSString("intensity"));
PlaneNode.Geometry.FirstMaterial.Reflective.Intensity = 0.0f;
PlaneNode.Opacity = 0.0f;
// Create a sphere to illustrate the "car paint" modifier
var sphere = SCNSphere.Create(6);
sphere.SegmentCount = 100;
sphere.FirstMaterial.Diffuse.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/noise", "png"));
sphere.FirstMaterial.Diffuse.WrapS = SCNWrapMode.Repeat;
sphere.FirstMaterial.Diffuse.WrapT = SCNWrapMode.Repeat;
sphere.FirstMaterial.Reflective.Contents = new NSImage(NSBundle.MainBundle.PathForResource("SharedTextures/envmap3", "jpg"));
sphere.FirstMaterial.FresnelExponent = 1.3f;
SphereNode = SCNNode.FromGeometry(sphere);
SphereNode.Position = new SCNVector3(5, 6, 0);
GroundNode.AddChildNode(SphereNode);
// Attach the "car paint" shader modifier
shaderFile = NSBundle.MainBundle.PathForResource("Shaders/carPaint", "shader");
var surfaceModifier = File.ReadAllText(shaderFile);
sphere.FirstMaterial.ShaderModifiers = new SCNShaderModifiers {
EntryPointSurface = surfaceModifier
};
var rotationAnimation = CABasicAnimation.FromKeyPath("rotation");
rotationAnimation.Duration = 15.0f;
rotationAnimation.RepeatCount = float.MaxValue;
rotationAnimation.By = NSValue.FromVector(new SCNVector4(0, 1, 0, -(float)(Math.PI * 2)));
SphereNode.AddAnimation(rotationAnimation, new NSString("sphereNodeAnimation"));
TextManager.HighlightBullet(1);
break;
case 7:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.5f;
SCNTransaction.AnimationTimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
// Move the camera closer
presentationViewController.CameraNode.Position = new SCNVector3(5, -0.5f, -17);
SCNTransaction.Commit();
break;
case 8:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
SCNTransaction.AnimationTimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
// Move back
presentationViewController.CameraNode.Position = new SCNVector3(0, 0, 0);
SCNTransaction.Commit();
break;
case 9:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
// Hide the sphere used for the previous modifier
SphereNode.Opacity = 0.0f;
SphereNode.Position = new SCNVector3(6, 4, -8);
SCNTransaction.Commit();
SCNTransaction.AnimationDuration = 0;
TextManager.HighlightBullet(2);
// Load the model, animate
var intermediateNode = SCNNode.Create();
intermediateNode.Position = new SCNVector3(4, 0.1f, 10);
TorusNode = Utils.SCAddChildNode(intermediateNode, "torus", "Scenes/torus/torus", 11);
rotationAnimation = CABasicAnimation.FromKeyPath("rotation");
rotationAnimation.Duration = 10.0f;
rotationAnimation.RepeatCount = float.MaxValue;
rotationAnimation.To = NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2)));
TorusNode.AddAnimation(rotationAnimation, new NSString("torusNodeAnimation"));
GroundNode.AddChildNode(intermediateNode);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
intermediateNode.Position = new SCNVector3(4, 0.1f, 0);
SCNTransaction.Commit();
break;
case 10:
// Attach the shader modifier
shaderFile = NSBundle.MainBundle.PathForResource("Shaders/toon", "shader");
var lightingModifier = File.ReadAllText(shaderFile);
TorusNode.Geometry.ShaderModifiers = new SCNShaderModifiers {
EntryPointLightingModel = lightingModifier
};
break;
case 11:
SCNTransaction.AnimationDuration = 1.0f;
// Hide the torus used for the previous modifier
TorusNode.Position = new SCNVector3(TorusNode.Position.X, TorusNode.Position.Y, TorusNode.Position.Z - 10);
TorusNode.Opacity = 0.0f;
// Load the model, animate
intermediateNode = SCNNode.Create();
intermediateNode.Position = new SCNVector3(4, -2.6f, 14);
intermediateNode.Scale = new SCNVector3(70, 70, 70);
XRayNode = Utils.SCAddChildNode(intermediateNode, "node", "Scenes/bunny", 12);
XRayNode.Position = new SCNVector3(0, 0, 0);
XRayNode.Opacity = 0.0f;
GroundNode.AddChildNode(intermediateNode);
rotationAnimation = CABasicAnimation.FromKeyPath("rotation");
rotationAnimation.Duration = 10.0f;
rotationAnimation.RepeatCount = float.MaxValue;
rotationAnimation.From = NSValue.FromVector(new SCNVector4(0, 1, 0, 0));
rotationAnimation.To = NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2)));
intermediateNode.AddAnimation(rotationAnimation, new NSString("bunnyNodeAnimation"));
TextManager.HighlightBullet(3);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
XRayNode.Opacity = 1.0f;
intermediateNode.Position = new SCNVector3(4, -2.6f, -2);
SCNTransaction.Commit();
break;
case 12:
// Attach the "x ray" modifier
shaderFile = NSBundle.MainBundle.PathForResource("Shaders/xRay", "shader");
var fragmentModifier = File.ReadAllText(shaderFile);
XRayNode.Geometry.ShaderModifiers = new SCNShaderModifiers {
EntryPointFragment = fragmentModifier
};
XRayNode.Geometry.FirstMaterial.ReadsFromDepthBuffer = false;
break;
case 13:
// Highlight everything
TextManager.HighlightBullet(-1);
// Hide the node used for the previous modifier
XRayNode.Opacity = 0.0f;
XRayNode.ParentNode.Position = new SCNVector3(4, -2.6f, -5);
// Create the model
sphere = SCNSphere.Create(5);
sphere.SegmentCount = 150; // tesselate a lot
VirusNode = SCNNode.FromGeometry(sphere);
VirusNode.Position = new SCNVector3(3, 6, 0);
VirusNode.Rotation = new SCNVector4(1, 0, 0, Pitch * (float)(Math.PI / 180.0f));
GroundNode.AddChildNode(VirusNode);
// Set the shader modifiers
var geomFile = NSBundle.MainBundle.PathForResource("Shaders/sm_geom", "shader");
var surfFile = NSBundle.MainBundle.PathForResource("Shaders/sm_surf", "shader");
var lightFile = NSBundle.MainBundle.PathForResource("Shaders/sm_light", "shader");
var fragFile = NSBundle.MainBundle.PathForResource("Shaders/sm_frag", "shader");
geometryModifier = File.ReadAllText(geomFile);
surfaceModifier = File.ReadAllText(surfFile);
lightingModifier = File.ReadAllText(lightFile);
fragmentModifier = File.ReadAllText(fragFile);
VirusNode.Geometry.FirstMaterial.ShaderModifiers = new SCNShaderModifiers {
EntryPointGeometry = geometryModifier,
EntryPointSurface = surfaceModifier,
EntryPointLightingModel = lightingModifier,
EntryPointFragment = fragmentModifier
};
break;
case 14:
SCNTransaction.AnimationDuration = 1.0f;
// Hide the node used for the previous modifier
VirusNode.Opacity = 0.0f;
VirusNode.Position = new SCNVector3(3, 6, -10);
// Change the text
TextManager.FadeOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("SCNShadable");
TextManager.AddBulletAtLevel("Protocol adopted by SCNMaterial and SCNGeometry", 0);
TextManager.AddBulletAtLevel("Shaders parameters are animatable", 0);
TextManager.AddBulletAtLevel("Texture samplers are bound to a SCNMaterialProperty", 0);
TextManager.AddCode("#var aProperty = SCNMaterialProperty.#Create# (anImage);\n"
+ "aMaterial.#SetValueForKey# (aProperty, #new NSString# (\"aSampler\"));#");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
}
SCNTransaction.Commit();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
float delay = 0;
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Available on OS X 10.8+ and iOS 8.0", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
//show some nice icons
Icon1 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/Badge_X", "png"), 7, false);
Icon1.Position = new SCNVector3(-20, 3.5f, 5);
GroundNode.AddChildNode(Icon1);
Icon2 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/Badge_iOS", "png"), 7, false);
Icon2.Position = new SCNVector3(20, 3.5f, 5);
GroundNode.AddChildNode(Icon2);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3(-6, 3.5f, 5);
Icon2.Position = new SCNVector3(6, 3.5f, 5);
SCNTransaction.Commit();
break;
case 2:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3(-6, 3.5f, -5);
Icon2.Position = new SCNVector3(6, 3.5f, -5);
Icon1.Opacity = 0.0f;
Icon2.Opacity = 0.0f;
SCNTransaction.Commit();
foreach (var node in Boxes)
{
var popTime = new DispatchTime(DispatchTime.Now, (Int64)(delay * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5f;
node.Rotation = new SCNVector4(1, 0, 0, 0);
node.Scale = new SCNVector3(0.02f, 0.02f, 0.02f);
node.Opacity = 1.0f;
SCNTransaction.Commit();
});
delay += 0.05f;
}
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("Graphic Frameworks");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
break;
}
}
