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Refactor animated model previews to unify features used by various windows

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This commit is contained in:
Wojtek Figat
2021-07-16 15:24:18 +02:00
parent cb59f2185c
commit 590ef32165
4 changed files with 252 additions and 212 deletions
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134
Source/Editor/Viewport/Previews/AnimatedModelPreview.cs
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@@ -3,6 +3,7 @@
using FlaxEditor.GUI.ContextMenu;
using FlaxEngine;
using FlaxEditor.GUI.Input;
using FlaxEngine.GUI;
using Object = FlaxEngine.Object;
namespace FlaxEditor.Viewport.Previews
@@ -13,9 +14,12 @@ namespace FlaxEditor.Viewport.Previews
/// <seealso cref="AssetPreview" />
public class AnimatedModelPreview : AssetPreview
{
private ContextMenuButton _showBoundsButton;
private ContextMenuButton _showNodesButton, _showBoundsButton, _showFloorButton;
private bool _showNodes, _showBounds, _showFloor;
private AnimatedModel _previewModel;
private bool _showNodes, _showBounds;
private StaticModel _floorModel;
private ContextMenuButton _showCurrentLODButton;
private bool _showCurrentLOD;
/// <summary>
/// Gets or sets the skinned model asset to preview.
@@ -47,6 +51,8 @@ namespace FlaxEditor.Viewport.Previews
_showNodes = value;
if (value)
ShowDebugDraw = true;
if (_showNodesButton != null)
_showNodesButton.Checked = value;
}
}
@@ -66,6 +72,33 @@ namespace FlaxEditor.Viewport.Previews
}
}
/// <summary>
/// Gets or sets a value indicating whether show floor model.
/// </summary>
public bool ShowFloor
{
get => _showFloor;
set
{
_showFloor = value;
if (value && !_floorModel)
{
_floorModel = new StaticModel
{
Position = new Vector3(0, -25, 0),
Scale = new Vector3(5, 0.5f, 5),
Model = FlaxEngine.Content.LoadAsync<Model>(StringUtils.CombinePaths(Globals.EngineContentFolder, "Editor/Primitives/Cube.flax")),
};
}
if (value)
Task.AddCustomActor(_floorModel);
else
Task.RemoveCustomActor(_floorModel);
if (_showFloorButton != null)
_showFloorButton.Checked = value;
}
}
/// <summary>
/// Gets or sets a value indicating whether scale the model to the normalized bounds.
/// </summary>
@@ -93,8 +126,6 @@ namespace FlaxEditor.Viewport.Previews
//_previewModel.BoundsScale = 1000.0f;
UpdateMode = AnimatedModel.AnimationUpdateMode.Manual
};
// Link actors for rendering
Task.AddCustomActor(_previewModel);
if (useWidgets)
@@ -102,6 +133,21 @@ namespace FlaxEditor.Viewport.Previews
// Show Bounds
_showBoundsButton = ViewWidgetShowMenu.AddButton("Bounds", () => ShowBounds = !ShowBounds);
// Show Skeleton
_showNodesButton = ViewWidgetShowMenu.AddButton("Skeleton", () => ShowNodes = !ShowNodes);
// Show Floor
_showFloorButton = ViewWidgetShowMenu.AddButton("Floor", button => ShowFloor = !ShowFloor);
_showFloorButton.IndexInParent = 1;
// Show Current LOD
_showCurrentLODButton = ViewWidgetShowMenu.AddButton("Current LOD", button =>
{
_showCurrentLOD = !_showCurrentLOD;
_showCurrentLODButton.Icon = _showCurrentLOD ? Style.Current.CheckBoxTick : SpriteHandle.Invalid;
});
_showCurrentLODButton.IndexInParent = 2;
// Preview LOD
{
var previewLOD = ViewWidgetButtonMenu.AddButton("Preview LOD");
@@ -113,6 +159,12 @@ namespace FlaxEditor.Viewport.Previews
ViewWidgetButtonMenu.VisibleChanged += control => previewLODValue.Value = _previewModel.ForcedLOD;
}
}
// Enable shadows
PreviewLight.ShadowsMode = ShadowsCastingMode.All;
PreviewLight.CascadeCount = 3;
PreviewLight.ShadowsDistance = 2000.0f;
Task.ViewFlags |= ViewFlags.Shadows;
}
private void OnBegin(RenderTask task, GPUContext context)
@@ -137,6 +189,44 @@ namespace FlaxEditor.Viewport.Previews
}
}
private int ComputeLODIndex(SkinnedModel model)
{
if (PreviewActor.ForcedLOD != -1)
return PreviewActor.ForcedLOD;
// Based on RenderTools::ComputeModelLOD
CreateProjectionMatrix(out var projectionMatrix);
float screenMultiple = 0.5f * Mathf.Max(projectionMatrix.M11, projectionMatrix.M22);
var sphere = PreviewActor.Sphere;
var viewOrigin = ViewPosition;
float distSqr = Vector3.DistanceSquared(ref sphere.Center, ref viewOrigin);
var screenRadiusSquared = Mathf.Square(screenMultiple * sphere.Radius) / Mathf.Max(1.0f, distSqr);
// Check if model is being culled
if (Mathf.Square(model.MinScreenSize * 0.5f) > screenRadiusSquared)
return -1;
// Skip if no need to calculate LOD
if (model.LoadedLODs == 0)
return -1;
var lods = model.LODs;
if (lods.Length == 0)
return -1;
if (lods.Length == 1)
return 0;
// Iterate backwards and return the first matching LOD
for (int lodIndex = lods.Length - 1; lodIndex >= 0; lodIndex--)
{
if (Mathf.Square(lods[lodIndex].ScreenSize * 0.5f) >= screenRadiusSquared)
{
return lodIndex + PreviewActor.LODBias;
}
}
return 0;
}
/// <inheritdoc />
protected override void OnDebugDraw(GPUContext context, ref RenderContext renderContext)
{
@@ -186,6 +276,37 @@ namespace FlaxEditor.Viewport.Previews
}
}
/// <inheritdoc />
public override void Draw()
{
base.Draw();
var skinnedModel = _previewModel.SkinnedModel;
if (_showCurrentLOD && skinnedModel)
{
var lodIndex = ComputeLODIndex(skinnedModel);
string text = string.Format("Current LOD: {0}", lodIndex);
if (lodIndex != -1)
{
var lods = skinnedModel.LODs;
lodIndex = Mathf.Clamp(lodIndex + PreviewActor.LODBias, 0, lods.Length - 1);
var lod = lods[lodIndex];
int triangleCount = 0, vertexCount = 0;
for (int meshIndex = 0; meshIndex < lod.Meshes.Length; meshIndex++)
{
var mesh = lod.Meshes[meshIndex];
triangleCount += mesh.TriangleCount;
vertexCount += mesh.VertexCount;
}
text += string.Format("\nTriangles: {0:N0}\nVertices: {1:N0}", triangleCount, vertexCount);
}
var font = Style.Current.FontMedium;
var pos = new Vector2(10, 50);
Render2D.DrawText(font, text, new Rectangle(pos + Vector2.One, Size), Color.Black);
Render2D.DrawText(font, text, new Rectangle(pos, Size), Color.White);
}
}
/// <inheritdoc />
public override void Update(float deltaTime)
{
@@ -220,8 +341,13 @@ namespace FlaxEditor.Viewport.Previews
/// <inheritdoc />
public override void OnDestroy()
{
Object.Destroy(ref _floorModel);
Object.Destroy(ref _previewModel);
NodesMask = null;
_showNodesButton = null;
_showBoundsButton = null;
_showFloorButton = null;
_showCurrentLODButton = null;
base.OnDestroy();
}