647 lines
25 KiB
C#
647 lines
25 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using NUnit.Framework;
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using UnityEngine;
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using UnityEngine.Playables;
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using UnityEngine.Timeline;
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namespace Streamingle.Editor
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{
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public sealed class AICameraCurveSimplifierTests
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{
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[Test]
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public void ExactPresetKeepsEverySampleAndNormalizesQuaternionSigns()
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{
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var samples = CreateSamples(121);
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var result = Simplify(
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samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Exact);
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var expected = Enumerable.Range(0, samples.Times.Length).ToArray();
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CollectionAssert.AreEqual(expected, result.PositionIndices);
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CollectionAssert.AreEqual(expected, result.RotationIndices);
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CollectionAssert.AreEqual(expected, result.FieldOfViewIndices);
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CollectionAssert.AreEqual(expected, result.DutchIndices);
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for (var index = 1; index < result.Rotations.Length; index++)
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{
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Assert.That(
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Quaternion.Dot(
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result.Rotations[index - 1],
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result.Rotations[index]),
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Is.GreaterThanOrEqualTo(0f),
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$"Quaternion sign changed at sample {index}.");
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}
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}
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[TestCase(AICameraTimelinePreviewImporter.CurveSimplificationPreset.Balanced)]
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[TestCase(AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable)]
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public void ReducedPresetsRespectConfiguredVectorAngleAndLensErrors(
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AICameraTimelinePreviewImporter.CurveSimplificationPreset preset)
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{
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var samples = CreateSamples(241);
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var result = Simplify(samples, preset);
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var settings =
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AICameraTimelinePreviewImporter.GetCurveSimplificationSettings(preset);
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AssertVectorError(
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result,
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settings.PositionErrorMeters + 0.00001f);
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AssertQuaternionError(
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result,
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settings.QuaternionAngleErrorDegrees + 0.0001f);
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AssertScalarError(
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result.Times,
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result.FieldOfView,
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result.FieldOfViewIndices,
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settings.FieldOfViewErrorDegrees + 0.00001f,
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"FOV");
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AssertScalarError(
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result.Times,
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result.Dutch,
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result.DutchIndices,
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settings.DutchErrorDegrees + 0.00001f,
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"Dutch");
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}
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[Test]
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public void EveryChannelPreservesEndpointsAndGlobalExtrema()
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{
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var samples = CreateSamples(181);
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var result = Simplify(
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samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable);
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AssertEndpoints(result.PositionIndices, samples.Times.Length);
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AssertEndpoints(result.RotationIndices, samples.Times.Length);
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AssertEndpoints(result.FieldOfViewIndices, samples.Times.Length);
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AssertEndpoints(result.DutchIndices, samples.Times.Length);
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AssertExtrema(
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result.PositionIndices,
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result.Positions.Select(value => value.x).ToArray());
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AssertExtrema(
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result.PositionIndices,
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result.Positions.Select(value => value.y).ToArray());
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AssertExtrema(
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result.PositionIndices,
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result.Positions.Select(value => value.z).ToArray());
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AssertExtrema(result.FieldOfViewIndices, result.FieldOfView);
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AssertExtrema(result.DutchIndices, result.Dutch);
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AssertExtrema(
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result.RotationIndices,
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result.Rotations.Select(value => value.x).ToArray());
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AssertExtrema(
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result.RotationIndices,
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result.Rotations.Select(value => value.y).ToArray());
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AssertExtrema(
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result.RotationIndices,
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result.Rotations.Select(value => value.z).ToArray());
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AssertExtrema(
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result.RotationIndices,
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result.Rotations.Select(value => value.w).ToArray());
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}
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[Test]
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public void QuaternionComponentsUseOneStrictlyIncreasingTimeIndexSet()
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{
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var samples = CreateSamples(151);
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var result = Simplify(
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samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Balanced);
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Assert.That(result.RotationIndices, Is.Ordered.Ascending);
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Assert.That(
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result.RotationIndices.Distinct().Count(),
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Is.EqualTo(result.RotationIndices.Length));
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foreach (var index in result.RotationIndices)
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{
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Assert.That(index, Is.InRange(0, result.Times.Length - 1));
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}
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for (var index = 1; index < result.Rotations.Length; index++)
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{
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Assert.That(
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Quaternion.Dot(
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result.Rotations[index - 1],
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result.Rotations[index]),
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Is.GreaterThanOrEqualTo(0f));
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}
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}
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[Test]
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public void EditablePresetReducesSmoothCameraDataMoreThanExact()
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{
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var samples = CreateSamples(301);
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var exact = Simplify(
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samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Exact);
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var editable = Simplify(
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samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable);
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Assert.That(
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editable.PositionIndices.Length,
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Is.LessThan(exact.PositionIndices.Length));
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Assert.That(
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editable.RotationIndices.Length,
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Is.LessThan(exact.RotationIndices.Length));
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Assert.That(
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editable.FieldOfViewIndices.Length,
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Is.LessThan(exact.FieldOfViewIndices.Length));
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Assert.That(
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editable.DutchIndices.Length,
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Is.LessThan(exact.DutchIndices.Length));
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}
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[Test]
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public void EditablePresetPreservesStopThroughDirectionChangeKeys()
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{
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const int count = 121;
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const int center = 60;
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const int preserveRadius = 21;
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var times = new double[count];
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var positions = new Vector3[count];
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var rotations = new Quaternion[count];
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var fieldOfView = new float[count];
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var dutch = new float[count];
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for (var index = 0; index < count; index++)
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{
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times[index] = index / 60.0;
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float x;
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if (index <= center)
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{
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var t = index / (float)center;
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x = -t * t * t + t * t + t;
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}
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else
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{
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var t = (index - center) /
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(float)(count - 1 - center);
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var progress = -t * t * t + 2f * t * t;
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x = 1f - progress;
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}
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positions[index] = new Vector3(x, 1.6f, -4f);
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rotations[index] = Quaternion.identity;
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fieldOfView[index] = 40f;
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dutch[index] = 0f;
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}
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var result = Simplify(
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new CameraSamples(
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times,
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positions,
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rotations,
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fieldOfView,
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dutch),
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable);
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for (var index = center - preserveRadius;
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index <= center + preserveRadius;
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index++)
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{
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Assert.That(
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result.PositionIndices,
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Does.Contain(index),
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$"Direction-change key {index} was simplified away.");
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}
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}
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[Test]
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public void EditablePresetPreservesBrakedRightAngleTurnKeys()
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{
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const int count = 121;
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const int center = 60;
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const int preserveRadius = 21;
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var times = new double[count];
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var positions = new Vector3[count];
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var rotations = new Quaternion[count];
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var fieldOfView = new float[count];
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var dutch = new float[count];
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for (var index = 0; index < count; index++)
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{
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times[index] = index / 60.0;
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if (index <= center)
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{
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var t = index / (float)center;
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var progress = -t * t * t + t * t + t;
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positions[index] = new Vector3(progress, 1.6f, -4f);
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}
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else
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{
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var t = (index - center) /
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(float)(count - 1 - center);
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var progress = -t * t * t + 2f * t * t;
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positions[index] = new Vector3(1f, 1.6f, -4f + progress);
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}
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rotations[index] = Quaternion.identity;
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fieldOfView[index] = 40f;
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dutch[index] = 0f;
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}
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var result = Simplify(
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new CameraSamples(
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times,
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positions,
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rotations,
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fieldOfView,
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dutch),
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable);
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for (var index = center - preserveRadius;
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index <= center + preserveRadius;
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index++)
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{
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Assert.That(
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result.PositionIndices,
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Does.Contain(index),
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$"Right-angle braking key {index} was simplified away.");
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}
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}
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[Test]
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public void EditablePresetPreservesBrakedFortyFiveDegreeTurnKeys()
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{
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const int count = 121;
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const int center = 60;
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const int preserveRadius = 21;
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var times = new double[count];
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var positions = new Vector3[count];
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var rotations = new Quaternion[count];
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var fieldOfView = new float[count];
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var dutch = new float[count];
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var outgoing = new Vector3(1f, 0f, 1f).normalized;
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for (var index = 0; index < count; index++)
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{
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times[index] = index / 60.0;
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if (index <= center)
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{
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var t = index / (float)center;
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var progress = -t * t * t + t * t + t;
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positions[index] = new Vector3(progress, 1.6f, -4f);
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}
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else
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{
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var t = (index - center) /
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(float)(count - 1 - center);
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var progress = -t * t * t + 2f * t * t;
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positions[index] =
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new Vector3(1f, 1.6f, -4f) + outgoing * progress;
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}
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rotations[index] = Quaternion.identity;
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fieldOfView[index] = 40f;
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dutch[index] = 0f;
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}
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var result = Simplify(
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new CameraSamples(
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times,
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positions,
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rotations,
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fieldOfView,
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dutch),
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AICameraTimelinePreviewImporter.CurveSimplificationPreset.Editable);
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for (var index = center - preserveRadius;
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index <= center + preserveRadius;
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index++)
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{
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Assert.That(
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result.PositionIndices,
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Does.Contain(index),
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$"Forty-five-degree braking key {index} was simplified away.");
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}
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}
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[Test]
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public void ExplicitDirectorScopesSeparateSameNamedSongDirectors()
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{
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var firstObject = new GameObject("SongDirector");
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var secondObject = new GameObject("SongDirector");
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var firstTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
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var secondTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
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try
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{
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var firstDirector = firstObject.AddComponent<PlayableDirector>();
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var secondDirector = secondObject.AddComponent<PlayableDirector>();
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firstDirector.playableAsset = firstTimeline;
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secondDirector.playableAsset = secondTimeline;
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var firstName = AICameraTimelinePreviewImporter
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.GetScopedPreviewDirectorName(firstDirector);
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var secondName = AICameraTimelinePreviewImporter
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.GetScopedPreviewDirectorName(secondDirector);
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StringAssert.StartsWith(
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AICameraTimelinePreviewImporter.PreviewDirectorName + "__",
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firstName);
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Assert.That(secondName, Is.Not.EqualTo(firstName));
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}
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finally
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{
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UnityEngine.Object.DestroyImmediate(firstObject);
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UnityEngine.Object.DestroyImmediate(secondObject);
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UnityEngine.Object.DestroyImmediate(firstTimeline);
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UnityEngine.Object.DestroyImmediate(secondTimeline);
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}
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}
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[Test]
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public void PreviewDirectorDetectionAcceptsScopedGeneratedPreviewOnly()
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{
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var previewObject = new GameObject(
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AICameraTimelinePreviewImporter.PreviewDirectorName + "__Song_1234");
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var ordinaryObject = new GameObject("Song");
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var previewTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
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var ordinaryTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
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try
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{
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previewTimeline.CreateTrack<AnimationTrack>(
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null,
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AICameraTimelinePreviewImporter.GeneratedAnimationTrackName);
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var preview = previewObject.AddComponent<PlayableDirector>();
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var ordinary = ordinaryObject.AddComponent<PlayableDirector>();
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preview.playableAsset = previewTimeline;
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ordinary.playableAsset = ordinaryTimeline;
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Assert.That(
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AICameraTimelinePreviewImporter
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.IsPreviewDirectorForEditor(preview),
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Is.True);
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Assert.That(
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AICameraTimelinePreviewImporter
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.IsPreviewDirectorForEditor(ordinary),
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Is.False);
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}
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finally
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{
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UnityEngine.Object.DestroyImmediate(previewObject);
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UnityEngine.Object.DestroyImmediate(ordinaryObject);
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UnityEngine.Object.DestroyImmediate(previewTimeline);
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UnityEngine.Object.DestroyImmediate(ordinaryTimeline);
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}
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}
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[Test]
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public void FinalAssetFolderMustStayBelowAssets()
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{
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Assert.That(
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AICameraTimelinePreviewImporter.NormalizeFinalAssetFolder(
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"Assets/Shows/AI_CameraFinal/SongA/"),
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Is.EqualTo("Assets/Shows/AI_CameraFinal/SongA"));
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Assert.Throws<ArgumentException>(() =>
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AICameraTimelinePreviewImporter.NormalizeFinalAssetFolder(
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"Assets/../Outside"));
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Assert.Throws<ArgumentException>(() =>
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AICameraTimelinePreviewImporter.NormalizeFinalAssetFolder(
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"C:/Outside"));
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Assert.Throws<ArgumentException>(() =>
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AICameraTimelinePreviewImporter.NormalizeFinalAssetFolder(
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"Assets"));
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}
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[Test]
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public void FinalizationClearsDisposablePreviewTrackBindings()
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{
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var directorObject = new GameObject("FinalDestinationDirector");
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var animatorObject = new GameObject("DisposablePreviewAnimator");
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var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
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try
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{
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var director = directorObject.AddComponent<PlayableDirector>();
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var animator = animatorObject.AddComponent<Animator>();
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var track = timeline.CreateTrack<AnimationTrack>(
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null,
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"Disposable Preview Track");
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director.playableAsset = timeline;
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director.SetGenericBinding(track, animator);
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Assert.That(director.GetGenericBinding(track), Is.SameAs(animator));
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AICameraTimelinePreviewImporter
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.ClearTimelineBindingsForFinalization(director, timeline);
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Assert.That(director.GetGenericBinding(track), Is.Null);
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}
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finally
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{
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UnityEngine.Object.DestroyImmediate(directorObject);
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UnityEngine.Object.DestroyImmediate(animatorObject);
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UnityEngine.Object.DestroyImmediate(timeline);
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}
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}
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private static AICameraTimelinePreviewImporter.SimplifiedCameraCurves
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Simplify(
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CameraSamples samples,
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AICameraTimelinePreviewImporter.CurveSimplificationPreset preset)
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{
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return AICameraTimelinePreviewImporter.SimplifyCameraCurves(
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samples.Times,
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samples.Positions,
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samples.Rotations,
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samples.FieldOfView,
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samples.Dutch,
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preset);
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}
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private static CameraSamples CreateSamples(int count)
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{
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var times = new double[count];
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var positions = new Vector3[count];
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var rotations = new Quaternion[count];
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var fieldOfView = new float[count];
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var dutch = new float[count];
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for (var index = 0; index < count; index++)
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{
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var time = index / 60.0;
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times[index] = time;
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positions[index] = new Vector3(
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1.2f * Mathf.Sin((float)time * 0.8f),
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1.6f + 0.25f * Mathf.Cos((float)time * 1.1f),
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-3.2f + 0.7f * Mathf.Sin((float)time * 0.45f));
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var rotation = Quaternion.Euler(
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8f * Mathf.Sin((float)time * 0.7f),
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35f * Mathf.Sin((float)time * 0.35f),
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3f * Mathf.Cos((float)time * 0.9f));
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rotations[index] = index % 11 == 0
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? new Quaternion(
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-rotation.x,
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-rotation.y,
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-rotation.z,
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-rotation.w)
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: rotation;
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fieldOfView[index] =
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42f + 7f * Mathf.Sin((float)time * 0.55f);
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dutch[index] =
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2.5f * Mathf.Cos((float)time * 0.75f);
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}
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return new CameraSamples(
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times,
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positions,
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rotations,
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fieldOfView,
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dutch);
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}
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private static void AssertVectorError(
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AICameraTimelinePreviewImporter.SimplifiedCameraCurves result,
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float maximumError)
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{
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ForEverySegmentSample(
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result.Times,
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result.PositionIndices,
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(sample, left, right, blend) =>
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{
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var reconstructed = Vector3.LerpUnclamped(
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result.Positions[left],
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result.Positions[right],
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blend);
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Assert.That(
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Vector3.Distance(result.Positions[sample], reconstructed),
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Is.LessThanOrEqualTo(maximumError),
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$"Position error exceeded at sample {sample}.");
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});
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}
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private static void AssertQuaternionError(
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AICameraTimelinePreviewImporter.SimplifiedCameraCurves result,
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float maximumError)
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{
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ForEverySegmentSample(
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result.Times,
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result.RotationIndices,
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(sample, left, right, blend) =>
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{
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var reconstructed = Normalize(new Quaternion(
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Mathf.LerpUnclamped(
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result.Rotations[left].x,
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result.Rotations[right].x,
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blend),
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Mathf.LerpUnclamped(
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result.Rotations[left].y,
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result.Rotations[right].y,
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blend),
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Mathf.LerpUnclamped(
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result.Rotations[left].z,
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result.Rotations[right].z,
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blend),
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|
Mathf.LerpUnclamped(
|
|
result.Rotations[left].w,
|
|
result.Rotations[right].w,
|
|
blend)));
|
|
Assert.That(
|
|
Quaternion.Angle(result.Rotations[sample], reconstructed),
|
|
Is.LessThanOrEqualTo(maximumError),
|
|
$"Quaternion angle error exceeded at sample {sample}.");
|
|
});
|
|
}
|
|
|
|
private static void AssertScalarError(
|
|
IReadOnlyList<double> times,
|
|
IReadOnlyList<float> values,
|
|
IReadOnlyList<int> indices,
|
|
float maximumError,
|
|
string label)
|
|
{
|
|
ForEverySegmentSample(
|
|
times,
|
|
indices,
|
|
(sample, left, right, blend) =>
|
|
{
|
|
var reconstructed = Mathf.LerpUnclamped(
|
|
values[left],
|
|
values[right],
|
|
blend);
|
|
Assert.That(
|
|
Mathf.Abs(values[sample] - reconstructed),
|
|
Is.LessThanOrEqualTo(maximumError),
|
|
$"{label} error exceeded at sample {sample}.");
|
|
});
|
|
}
|
|
|
|
private static void ForEverySegmentSample(
|
|
IReadOnlyList<double> times,
|
|
IReadOnlyList<int> indices,
|
|
Action<int, int, int, float> assertion)
|
|
{
|
|
for (var segmentIndex = 1;
|
|
segmentIndex < indices.Count;
|
|
segmentIndex++)
|
|
{
|
|
var left = indices[segmentIndex - 1];
|
|
var right = indices[segmentIndex];
|
|
var duration = times[right] - times[left];
|
|
for (var sample = left; sample <= right; sample++)
|
|
{
|
|
var blend = duration > double.Epsilon
|
|
? (float)((times[sample] - times[left]) / duration)
|
|
: 0f;
|
|
assertion(sample, left, right, blend);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void AssertEndpoints(IReadOnlyCollection<int> indices, int count)
|
|
{
|
|
Assert.That(indices, Does.Contain(0));
|
|
Assert.That(indices, Does.Contain(count - 1));
|
|
}
|
|
|
|
private static void AssertExtrema(
|
|
IReadOnlyCollection<int> indices,
|
|
IReadOnlyList<float> values)
|
|
{
|
|
var minimum = Enumerable.Range(0, values.Count)
|
|
.OrderBy(index => values[index])
|
|
.First();
|
|
var maximum = Enumerable.Range(0, values.Count)
|
|
.OrderByDescending(index => values[index])
|
|
.First();
|
|
Assert.That(indices, Does.Contain(minimum));
|
|
Assert.That(indices, Does.Contain(maximum));
|
|
}
|
|
|
|
private static Quaternion Normalize(Quaternion value)
|
|
{
|
|
var magnitude = Mathf.Sqrt(
|
|
value.x * value.x +
|
|
value.y * value.y +
|
|
value.z * value.z +
|
|
value.w * value.w);
|
|
return new Quaternion(
|
|
value.x / magnitude,
|
|
value.y / magnitude,
|
|
value.z / magnitude,
|
|
value.w / magnitude);
|
|
}
|
|
|
|
private readonly struct CameraSamples
|
|
{
|
|
public CameraSamples(
|
|
double[] times,
|
|
Vector3[] positions,
|
|
Quaternion[] rotations,
|
|
float[] fieldOfView,
|
|
float[] dutch)
|
|
{
|
|
Times = times;
|
|
Positions = positions;
|
|
Rotations = rotations;
|
|
FieldOfView = fieldOfView;
|
|
Dutch = dutch;
|
|
}
|
|
|
|
public double[] Times { get; }
|
|
public Vector3[] Positions { get; }
|
|
public Quaternion[] Rotations { get; }
|
|
public float[] FieldOfView { get; }
|
|
public float[] Dutch { get; }
|
|
}
|
|
}
|
|
}
|