wehub-resource-sync
117 lines
3.8 KiB
C#
117 lines
3.8 KiB
C#
using T3.Core.Rendering;
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using T3.Core.Utils;
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using T3.Core.Utils.Geometry;
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namespace Lib.render.camera;
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[Guid("954af16f-b37b-4e64-a965-4bec02b9179e")]
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internal sealed class OrthographicCamera : Instance<OrthographicCamera>, ICamera, ICameraPropertiesProvider
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{
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[Output(Guid = "93241f33-8a3e-4bba-8852-ca5d4d4523aa", DirtyFlagTrigger = DirtyFlagTrigger.Always)]
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public readonly Slot<Command> Output = new();
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[Output(Guid = "761245E2-AC0B-435A-841E-7C9EDC804606")]
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public readonly Slot<Object> Reference = new();
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public OrthographicCamera()
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{
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Output.UpdateAction += Update;
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Reference.Value = this;
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}
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private void Update(EvaluationContext context)
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{
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var aspectRatio = AspectRatio.GetValue(context);
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if (aspectRatio < 0.0001f)
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{
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aspectRatio = (float)context.RequestedResolution.Width / context.RequestedResolution.Height;
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}
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LastObjectToWorld = context.ObjectToWorld;
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var roll = Roll.GetValue(context);
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var rollRotation = Matrix4x4.CreateFromAxisAngle(Vector3.UnitZ, -roll * MathUtils.ToRad);
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Vector2 size = Stretch.GetValue(context) * Scale.GetValue(context) * new Vector2(aspectRatio,1);
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Vector2 clip = NearFarClip.GetValue(context);
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CameraToClipSpace = Matrix4x4.CreateOrthographic(size.X, size.Y, clip.X, clip.Y);
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var pos = Position.GetValue(context);
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Vector3 eye = new Vector3(pos.X, pos.Y, pos.Z);
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var t = Target.GetValue(context);
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Vector3 target = new Vector3(t.X, t.Y, t.Z);
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var u = Up.GetValue(context);
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Vector3 up = new Vector3(u.X, u.Y, u.Z);
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WorldToCamera = GraphicsMath.LookAtRH(eye, target, up) * rollRotation;
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var prevCameraToClipSpace = context.CameraToClipSpace;
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context.CameraToClipSpace = CameraToClipSpace;
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var prevWorldToCamera = context.WorldToCamera;
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context.WorldToCamera = WorldToCamera;
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Command.GetValue(context);
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context.CameraToClipSpace = prevCameraToClipSpace;
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context.WorldToCamera = prevWorldToCamera;
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}
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#region Implement ICamera ----------------
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public Vector3 CameraPosition
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{
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get => Position.Value;
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set => Animator.UpdateVector3InputValue(Position, value);
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}
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public Vector3 CameraTarget
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{
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get => Target.Value;
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set => Animator.UpdateVector3InputValue(Target, value);
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}
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public float CameraRoll
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{
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get => Roll.Value;
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set => Animator.UpdateFloatInputValue(Roll, value);
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}
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public CameraDefinition CameraDefinition => new(); // Not implemented
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public Matrix4x4 WorldToCamera { get; set; }
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public Matrix4x4 LastObjectToWorld { get; set; }
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public Matrix4x4 CameraToClipSpace { get; set; }
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#endregion
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[Input(Guid = "4f5832eb-23a0-4cdf-8144-3537578e3e26")]
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public readonly InputSlot<Command> Command = new();
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[Input(Guid = "a0a28003-d6b5-4af5-9444-acf7af18ab4e")]
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public readonly InputSlot<Vector3> Position = new();
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[Input(Guid = "1399ce7f-9352-4976-b02e-7e7102b14db5")]
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public readonly InputSlot<Vector3> Target = new();
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[Input(Guid = "7b181495-ebd6-48c1-a866-b7b8337ef10d")]
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public readonly InputSlot<Vector3> Up = new();
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[Input(Guid = "e4761300-f383-4d4c-9aa0-7d7ab7997973")]
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public readonly InputSlot<float> Roll = new();
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[Input(Guid = "9326957b-bc25-4f89-a833-9b8bb415d8ef")]
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public readonly InputSlot<Vector2> NearFarClip = new();
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[Input(Guid = "6FC4F861-9D65-4AF1-AAFC-D90851F61D7F")]
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public readonly InputSlot<float> Scale = new();
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[Input(Guid = "9EA6EA91-69BB-49D4-8A01-DA75484BA207")]
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public readonly InputSlot<float> AspectRatio = new();
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[Input(Guid = "8042eb60-ca86-42b3-a338-d733c3cbb1fb")]
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public readonly InputSlot<Vector2> Stretch = new();
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} |