LookAtCamera Class

Delta Engine Documentation

Basic camera for 3D which can zoom, move and rotate around the Target. View code on GitHub

Inheritance Hierarchy

System Object
  DeltaEngine.Entities Entity
    DeltaEngine.Rendering3D.Cameras Camera
      DeltaEngine.Rendering3D.Cameras TargetedCamera
        DeltaEngine.Rendering3D.Cameras LookAtCamera

Namespace: DeltaEngine.Rendering3D.Cameras
Assembly: DeltaEngine.Rendering3D (in DeltaEngine.Rendering3D.dll) Version: 1.1.1.0 (1.1.1)

Syntax

C++

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public class LookAtCamera : TargetedCamera

public class LookAtCamera : TargetedCamera

Public Class LookAtCamera 
	Inherits TargetedCamera

Public Class LookAtCamera 
	Inherits TargetedCamera

public ref class LookAtCamera : public TargetedCamera

public ref class LookAtCamera : public TargetedCamera

type LookAtCamera =  
    class 
        inherit TargetedCamera 
    end

type LookAtCamera =  
    class 
        inherit TargetedCamera 
    end

The LookAtCamera type exposes the following members.

Constructors

	Name	Description
	LookAtCamera	Initializes a new instance of the LookAtCamera class

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Methods

	Name	Description
	Add T	(Inherited from Entity.)
	AddTag	View code on GitHub (Inherited from Entity.)
	ClearTags	View code on GitHub (Inherited from Entity.)
	Contains T	(Inherited from Entity.)
	ContainsBehavior T	(Inherited from Entity.)
	ContainsTag	View code on GitHub (Inherited from Entity.)
	Deactivate	(Inherited from Entity.)
	Dispose	(Inherited from Camera.)
	ForceProjectionMatrixUpdate	(Inherited from Camera.)
	Get T	Gets a specific component, derived classes can return faster cached values (e.g. Entity2D) View code on GitHub (Inherited from Entity.)
	GetActiveBehaviors	(Inherited from Entity.)
	GetComponentsForSaving	(Inherited from Entity.)
	GetCurrentProjectionMatrix	(Inherited from Camera.)
	GetCurrentViewMatrix	(Inherited from TargetedCamera.)
	GetFinalTargetPosition	(Inherited from TargetedCamera.)
	GetOrDefault T	(Inherited from Entity.)
	GetTags	View code on GitHub (Inherited from Entity.)
	Initialize	View code on GitHub (Inherited from Camera.)
	OnViewportSizeChanged	(Inherited from Camera.)
	Remove T	(Inherited from Entity.)
	RemoveTag	View code on GitHub (Inherited from Entity.)
	ResetDefaults	(Overrides Camera ResetDefaults .)
	ScreenPointToRay	(Inherited from Camera.)
	Set	View code on GitHub (Inherited from Entity.)
	SetComponents	(Inherited from Entity.)
	Start T	(Inherited from Entity.)
	Stop T	(Inherited from Entity.)
	ToString	View code on GitHub (Inherited from Entity.)
	WorldToScreenPoint	View code on GitHub (Inherited from Camera.)
	Zoom	View code on GitHub

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Fields

	Name	Description
	components	(Inherited from Entity.)
	window	(Inherited from Camera.)

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Properties

	Name	Description
	FarPlane	(Inherited from Camera.)
	FieldOfView	(Inherited from Camera.)
	IsActive	View code on GitHub (Inherited from Entity.)
	IsPauseable	View code on GitHub (Inherited from Entity.)
	NearPlane	(Inherited from Camera.)
	NormalizedLookVector
	NumberOfComponents	View code on GitHub (Inherited from Entity.)
	Position	View code on GitHub (Overrides Camera Position.)
	Target	View code on GitHub (Overrides TargetedCamera Target.)
	UpdatePriority	View code on GitHub (Inherited from Entity.)
	YawPitchRoll	View code on GitHub

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Remarks

Tests: DeltaEngine.Rendering3D.Tests.Cameras.LookAtCameraTests

Examples

10 unit tests call DeltaEngine.Rendering3D.Cameras.LookAtCamera

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[Test, ApproveFirstFrameScreenshot]
public void RenderGrid()
{
    CreateLookAtCamera(new Vector3D(0.0f, -5.0f, 5.0f), Vector3D.Zero);
    new Grid3D(new Size(9));
}

[Test, ApproveFirstFrameScreenshot]
public void RenderGrid()
{
    CreateLookAtCamera(new Vector3D(0.0f, -5.0f, 5.0f), Vector3D.Zero);
    new Grid3D(new Size(9));
}

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[Test, CloseAfterFirstFrame]
public void PositionToTargetDistance()
{
    var camera = CreateLookAtCamera(Vector3D.UnitZ * 5.0f, Vector3D.Zero);
    Assert.AreEqual(5.0f, camera.Position.Length - camera.Target.Length);
}

[Test, CloseAfterFirstFrame]
public void PositionToTargetDistance()
{
    var camera = CreateLookAtCamera(Vector3D.UnitZ * 5.0f, Vector3D.Zero);
    Assert.AreEqual(5.0f, camera.Position.Length - camera.Target.Length);
}

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[Test, CloseAfterFirstFrame]
public void RotateCamera90DegreesAroundZAxis()
{
    var camera = CreateLookAtCamera(Vector3D.UnitY, Vector3D.Zero);
    Assert.AreEqual(Vector3D.Zero, camera.YawPitchRoll);
    camera.YawPitchRoll = new Vector3D(90.0f, 0.0f, 0.0f);
    Assert.IsTrue(camera.Position.IsNearlyEqual(-Vector3D.UnitX));
    Assert.AreEqual(Vector3D.Zero, camera.Target);
}

[Test, CloseAfterFirstFrame]
public void RotateCamera90DegreesAroundZAxis()
{
    var camera = CreateLookAtCamera(Vector3D.UnitY, Vector3D.Zero);
    Assert.AreEqual(Vector3D.Zero, camera.YawPitchRoll);
    camera.YawPitchRoll = new Vector3D(90.0f, 0.0f, 0.0f);
    Assert.IsTrue(camera.Position.IsNearlyEqual(-Vector3D.UnitX));
    Assert.AreEqual(Vector3D.Zero, camera.Target);
}