520 lines
24 KiB
C#
520 lines
24 KiB
C#
// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using FlaxEngine;
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namespace FlaxEditor.Content.Import
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{
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/// <summary>
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/// Importing model lightmap UVs source
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/// </summary>
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[HideInEditor]
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public enum ModelLightmapUVsSource : int
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{
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/// <summary>
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/// No lightmap UVs.
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/// </summary>
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Disable = 0,
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/// <summary>
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/// Generate lightmap UVs from model geometry.
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/// </summary>
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Generate = 1,
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/// <summary>
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/// The texcoords channel 0.
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/// </summary>
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Channel0 = 2,
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/// <summary>
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/// The texcoords channel 1.
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/// </summary>
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Channel1 = 3,
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/// <summary>
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/// The texcoords channel 2.
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/// </summary>
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Channel2 = 4,
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/// <summary>
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/// The texcoords channel 3.
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/// </summary>
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Channel3 = 5
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}
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/// <summary>
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/// Declares the imported data type.
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/// </summary>
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[HideInEditor]
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public enum ModelType : int
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{
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/// <summary>
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/// The model asset.
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/// </summary>
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Model = 0,
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/// <summary>
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/// The skinned model asset.
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/// </summary>
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SkinnedModel = 1,
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/// <summary>
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/// The animation asset.
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/// </summary>
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Animation = 2,
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}
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/// <summary>
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/// Declares the imported animation clip duration.
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/// </summary>
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[HideInEditor]
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public enum AnimationDuration : int
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{
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/// <summary>
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/// The imported duration.
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/// </summary>
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Imported = 0,
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/// <summary>
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/// The custom duration specified via keyframes range.
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/// </summary>
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Custom = 1,
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}
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/// <summary>
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/// Proxy object to present model import settings in <see cref="ImportFilesDialog"/>.
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/// </summary>
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[HideInEditor]
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public class ModelImportSettings
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{
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/// <summary>
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/// Gets or sets the type of the imported asset.
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/// </summary>
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[EditorOrder(0), Tooltip("Type of the imported asset")]
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public ModelType Type { get; set; } = ModelType.Model;
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/// <summary>
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/// True if calculate model normals, otherwise will import them.
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/// </summary>
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[EditorOrder(20), DefaultValue(false), EditorDisplay("Geometry"), Tooltip("Enable model normal vectors recalculating")]
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public bool CalculateNormals { get; set; } = false;
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/// <summary>
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/// Calculated normals smoothing angle.
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/// </summary>
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[VisibleIf("CalculateNormals")]
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[EditorOrder(30), DefaultValue(175.0f), Limit(0, 175, 0.1f), EditorDisplay("Geometry"), Tooltip("Specifies the maximum angle (in degrees) that may be between two face normals at the same vertex position that their are smoothed together. The default value is 175.")]
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public float SmoothingNormalsAngle { get; set; } = 175.0f;
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/// <summary>
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/// If checked, the imported normal vectors of the mesh will be flipped (scaled by -1).
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/// </summary>
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[EditorOrder(35), DefaultValue(false), EditorDisplay("Geometry"), Tooltip("If checked, the imported normal vectors of the mesh will be flipped (scaled by -1).")]
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public bool FlipNormals { get; set; } = false;
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/// <summary>
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/// True if calculate model tangents, otherwise will import them.
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/// </summary>
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[EditorOrder(40), DefaultValue(false), EditorDisplay("Geometry"), Tooltip("Enable model tangent vectors recalculating")]
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public bool CalculateTangents { get; set; } = false;
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/// <summary>
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/// Calculated normals smoothing angle.
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/// </summary>
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[VisibleIf("CalculateTangents")]
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[EditorOrder(45), DefaultValue(45.0f), Limit(0, 45, 0.1f), EditorDisplay("Geometry"), Tooltip("Specifies the maximum angle (in degrees) that may be between two vertex tangents that their tangents and bi-tangents are smoothed. The default value is 45.")]
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public float SmoothingTangentsAngle { get; set; } = 45.0f;
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/// <summary>
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/// Enable/disable meshes geometry optimization.
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/// </summary>
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[EditorOrder(50), DefaultValue(true), EditorDisplay("Geometry"), Tooltip("Enable/disable meshes geometry optimization")]
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public bool OptimizeMeshes { get; set; } = true;
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/// <summary>
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/// Enable/disable geometry merge for meshes with the same materials.
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/// </summary>
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[EditorOrder(60), DefaultValue(true), EditorDisplay("Geometry"), Tooltip("Enable/disable geometry merge for meshes with the same materials")]
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public bool MergeMeshes { get; set; } = true;
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/// <summary>
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/// Enable/disable importing meshes Level of Details.
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/// </summary>
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[EditorOrder(70), DefaultValue(true), EditorDisplay("Geometry", "Import LODs"), Tooltip("Enable/disable importing meshes Level of Details")]
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public bool ImportLODs { get; set; } = true;
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/// <summary>
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/// Enable/disable importing vertex colors (channel 0 only).
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/// </summary>
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[EditorOrder(80), DefaultValue(true), EditorDisplay("Geometry"), Tooltip("Enable/disable importing vertex colors (channel 0 only)")]
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public bool ImportVertexColors { get; set; } = true;
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/// <summary>
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/// Enable/disable importing blend shapes (morph targets).
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/// </summary>
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[EditorOrder(85), DefaultValue(false), EditorDisplay("Geometry"), Tooltip("Enable/disable importing blend shapes (morph targets).")]
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public bool ImportBlendShapes { get; set; } = false;
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/// <summary>
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/// The lightmap UVs source.
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/// </summary>
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[EditorOrder(90), DefaultValue(ModelLightmapUVsSource.Disable), EditorDisplay("Geometry", "Lightmap UVs Source"), Tooltip("Model lightmap UVs source")]
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public ModelLightmapUVsSource LightmapUVsSource { get; set; } = ModelLightmapUVsSource.Disable;
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/// <summary>
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/// If specified, all meshes which name starts with this prefix will be imported as a separate collision data (excluded used for rendering).
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/// </summary>
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[EditorOrder(100), DefaultValue(""), EditorDisplay("Geometry")]
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public string CollisionMeshesPrefix { get; set; }
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/// <summary>
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/// Custom uniform import scale.
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/// </summary>
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[EditorOrder(500), DefaultValue(1.0f), EditorDisplay("Transform"), Tooltip("Custom uniform import scale")]
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public float Scale { get; set; } = 1.0f;
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/// <summary>
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/// Custom import geometry rotation.
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/// </summary>
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[DefaultValue(typeof(Quaternion), "0,0,0,1")]
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[EditorOrder(510), EditorDisplay("Transform"), Tooltip("Custom import geometry rotation")]
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public Quaternion Rotation { get; set; } = Quaternion.Identity;
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/// <summary>
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/// Custom import geometry offset.
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/// </summary>
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[DefaultValue(typeof(Vector3), "0,0,0")]
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[EditorOrder(520), EditorDisplay("Transform"), Tooltip("Custom import geometry offset")]
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public Vector3 Translation { get; set; } = Vector3.Zero;
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/// <summary>
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/// If checked, the imported geometry will be shifted to the center of mass.
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/// </summary>
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[EditorOrder(530), DefaultValue(false), EditorDisplay("Transform"), Tooltip("If checked, the imported geometry will be shifted to the center of mass.")]
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public bool CenterGeometry { get; set; } = false;
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/// <summary>
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/// The imported animation duration mode.
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/// </summary>
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[EditorOrder(1000), DefaultValue(AnimationDuration.Imported), EditorDisplay("Animation"), Tooltip("Imported animation duration mode. Can use the original value or overriden by settings.")]
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public AnimationDuration Duration { get; set; } = AnimationDuration.Imported;
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/// <summary>
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/// The imported animation first frame index. Used only if Duration mode is set to Custom.
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/// </summary>
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[EditorOrder(1010), DefaultValue(0.0f), Limit(0), EditorDisplay("Animation"), Tooltip("Imported animation first frame index. Used only if Duration mode is set to Custom.")]
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public float FramesRangeStart { get; set; } = 0;
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/// <summary>
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/// The imported animation end frame index. Used only if Duration mode is set to Custom.
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/// </summary>
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[EditorOrder(1020), DefaultValue(0.0f), Limit(0), EditorDisplay("Animation"), Tooltip("Imported animation last frame index. Used only if Duration mode is set to Custom.")]
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public float FramesRangeEnd { get; set; } = 0;
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/// <summary>
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/// The imported animation default frame rate. Can specify the default frames per second amount for imported animation. If value is 0 then the original animation frame rate will be used.
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/// </summary>
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[EditorOrder(1025), DefaultValue(0.0f), Limit(0, 1000, 0.01f), EditorDisplay("Animation"), Tooltip("The imported animation default frame rate. Can specify the default frames per second amount for imported animation. If value is 0 then the original animation frame rate will be used.")]
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public float DefaultFrameRate { get; set; } = 0.0f;
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/// <summary>
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/// The imported animation sampling rate. If value is 0 then the original animation speed will be used.
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/// </summary>
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[EditorOrder(1030), DefaultValue(0.0f), Limit(0, 1000, 0.01f), EditorDisplay("Animation"), Tooltip("The imported animation sampling rate. If value is 0 then the original animation speed will be used.")]
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public float SamplingRate { get; set; } = 0.0f;
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/// <summary>
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/// The imported animation will have removed tracks with no keyframes or unspecified data.
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/// </summary>
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[EditorOrder(1040), DefaultValue(true), EditorDisplay("Animation"), Tooltip("The imported animation will have removed tracks with no keyframes or unspecified data.")]
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public bool SkipEmptyCurves { get; set; } = true;
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/// <summary>
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/// The imported animation channels will be optimized to remove redundant keyframes.
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/// </summary>
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[EditorOrder(1050), DefaultValue(true), EditorDisplay("Animation"), Tooltip("The imported animation channels will be optimized to remove redundant keyframes.")]
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public bool OptimizeKeyframes { get; set; } = true;
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/// <summary>
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/// Enables root motion extraction support from this animation.
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/// </summary>
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[EditorOrder(1060), DefaultValue(false), EditorDisplay("Animation"), Tooltip("Enables root motion extraction support from this animation.")]
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public bool EnableRootMotion { get; set; } = false;
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/// <summary>
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/// The custom node name to be used as a root motion source. If not specified the actual root node will be used.
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/// </summary>
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[EditorOrder(1070), DefaultValue(typeof(string), ""), EditorDisplay("Animation"), Tooltip("The custom node name to be used as a root motion source. If not specified the actual root node will be used.")]
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public string RootNodeName { get; set; }
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/// <summary>
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/// If checked, the importer will generate a sequence of LODs based on the base LOD index.
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/// </summary>
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[EditorOrder(1100), DefaultValue(false), EditorDisplay("Level Of Detail", "Generate LODs"), Tooltip("If checked, the importer will generate a sequence of LODs based on the base LOD index.")]
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public bool GenerateLODs { get; set; } = false;
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/// <summary>
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/// The index of the LOD from the source model data to use as a reference for following LODs generation.
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/// </summary>
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[EditorOrder(1110), DefaultValue(0), Limit(0, Model.MaxLODs - 1), EditorDisplay("Level Of Detail", "Base LOD"), Tooltip("The index of the LOD from the source model data to use as a reference for following LODs generation.")]
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public int BaseLOD { get; set; } = 0;
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/// <summary>
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/// The amount of LODs to include in the model (all remaining ones starting from Base LOD will be generated).
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/// </summary>
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[EditorOrder(1120), DefaultValue(4), Limit(1, Model.MaxLODs), EditorDisplay("Level Of Detail", "LOD Count"), Tooltip("The amount of LODs to include in the model (all remaining ones starting from Base LOD will be generated).")]
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public int LODCount { get; set; } = 4;
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/// <summary>
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/// The target amount of triangles for the generated LOD (based on the higher LOD). Normalized to range 0-1. For instance 0.4 cuts the triangle count to 40%.
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/// </summary>
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[EditorOrder(1130), DefaultValue(0.5f), Limit(0, 1, 0.001f), EditorDisplay("Level Of Detail"), Tooltip("The target amount of triangles for the generated LOD (based on the higher LOD). Normalized to range 0-1. For instance 0.4 cuts the triangle count to 40%.")]
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public float TriangleReduction { get; set; } = 0.5f;
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/// <summary>
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/// If checked, the importer will create materials for model meshes as specified in the file.
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/// </summary>
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[EditorOrder(400), DefaultValue(true), EditorDisplay("Materials"), Tooltip("If checked, the importer will create materials for model meshes as specified in the file.")]
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public bool ImportMaterials { get; set; } = true;
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/// <summary>
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/// If checked, the importer will import texture files used by the model and any embedded texture resources.
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/// </summary>
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[EditorOrder(410), DefaultValue(true), EditorDisplay("Materials"), Tooltip("If checked, the importer will import texture files used by the model and any embedded texture resources.")]
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public bool ImportTextures { get; set; } = true;
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/// <summary>
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/// If checked, the importer will try to restore the model material slots.
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/// </summary>
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[EditorOrder(420), DefaultValue(true), EditorDisplay("Materials", "Restore Materials On Reimport"), Tooltip("If checked, the importer will try to restore the assigned materials to the model slots.")]
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public bool RestoreMaterialsOnReimport { get; set; } = true;
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/// <summary>
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/// If checked, enables generation of Signed Distance Field (SDF).
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/// </summary>
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[EditorOrder(1500), DefaultValue(false), EditorDisplay("SDF"), VisibleIf(nameof(Type_Model))]
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public bool GenerateSDF { get; set; } = false;
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/// <summary>
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/// Resolution scale for generated Signed Distance Field (SDF) texture. Higher values improve accuracy but increase memory usage and reduce performance.
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/// </summary>
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[EditorOrder(1510), DefaultValue(1.0f), Limit(0.0001f, 100.0f), EditorDisplay("SDF"), VisibleIf(nameof(Type_Model))]
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public float SDFResolution { get; set; } = 1.0f;
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/// <summary>
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/// If checked, the imported mesh/animations are splitted into separate assets. Used if ObjectIndex is set to -1.
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/// </summary>
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[EditorOrder(2000), DefaultValue(false), EditorDisplay("Splitting"), Tooltip("If checked, the imported mesh/animations are splitted into separate assets. Used if ObjectIndex is set to -1.")]
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public bool SplitObjects { get; set; } = false;
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/// <summary>
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/// The zero-based index for the mesh/animation clip to import. If the source file has more than one mesh/animation it can be used to pick a desire object. Default -1 imports all objects.
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/// </summary>
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[EditorOrder(2010), DefaultValue(-1), EditorDisplay("Splitting"), Tooltip("The zero-based index for the mesh/animation clip to import. If the source file has more than one mesh/animation it can be used to pick a desire object. Default -1 imports all objects.")]
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public int ObjectIndex { get; set; } = -1;
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private bool Type_Model => Type == ModelType.Model;
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[StructLayout(LayoutKind.Sequential)]
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internal struct InternalOptions
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{
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public ModelType Type;
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// Geometry
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public byte CalculateNormals;
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public float SmoothingNormalsAngle;
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public byte FlipNormals;
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public float SmoothingTangentsAngle;
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public byte CalculateTangents;
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public byte OptimizeMeshes;
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public byte MergeMeshes;
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public byte ImportLODs;
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public byte ImportVertexColors;
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public byte ImportBlendShapes;
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public ModelLightmapUVsSource LightmapUVsSource;
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public string CollisionMeshesPrefix;
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// Transform
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public float Scale;
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public Quaternion Rotation;
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public Vector3 Translation;
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public byte CenterGeometry;
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// Animation
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public AnimationDuration Duration;
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public float FramesRangeStart;
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public float FramesRangeEnd;
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public float DefaultFrameRate;
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public float SamplingRate;
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public byte SkipEmptyCurves;
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public byte OptimizeKeyframes;
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public byte EnableRootMotion;
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public string RootNodeName;
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// Level Of Detail
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public byte GenerateLODs;
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public int BaseLOD;
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public int LODCount;
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public float TriangleReduction;
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// Misc
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public byte ImportMaterials;
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public byte ImportTextures;
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public byte RestoreMaterialsOnReimport;
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// SDF
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public byte GenerateSDF;
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public float SDFResolution;
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// Splitting
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public byte SplitObjects;
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public int ObjectIndex;
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}
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internal void ToInternal(out InternalOptions options)
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{
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options = new InternalOptions
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{
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Type = Type,
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CalculateNormals = (byte)(CalculateNormals ? 1 : 0),
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SmoothingNormalsAngle = SmoothingNormalsAngle,
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FlipNormals = (byte)(FlipNormals ? 1 : 0),
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SmoothingTangentsAngle = SmoothingTangentsAngle,
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CalculateTangents = (byte)(CalculateTangents ? 1 : 0),
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OptimizeMeshes = (byte)(OptimizeMeshes ? 1 : 0),
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MergeMeshes = (byte)(MergeMeshes ? 1 : 0),
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ImportLODs = (byte)(ImportLODs ? 1 : 0),
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ImportVertexColors = (byte)(ImportVertexColors ? 1 : 0),
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ImportBlendShapes = (byte)(ImportBlendShapes ? 1 : 0),
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LightmapUVsSource = LightmapUVsSource,
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CollisionMeshesPrefix = CollisionMeshesPrefix,
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Scale = Scale,
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Rotation = Rotation,
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Translation = Translation,
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CenterGeometry = (byte)(CenterGeometry ? 1 : 0),
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Duration = Duration,
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FramesRangeStart = FramesRangeStart,
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FramesRangeEnd = FramesRangeEnd,
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DefaultFrameRate = DefaultFrameRate,
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SamplingRate = SamplingRate,
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SkipEmptyCurves = (byte)(SkipEmptyCurves ? 1 : 0),
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OptimizeKeyframes = (byte)(OptimizeKeyframes ? 1 : 0),
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EnableRootMotion = (byte)(EnableRootMotion ? 1 : 0),
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RootNodeName = RootNodeName,
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GenerateLODs = (byte)(GenerateLODs ? 1 : 0),
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BaseLOD = BaseLOD,
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LODCount = LODCount,
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TriangleReduction = TriangleReduction,
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ImportMaterials = (byte)(ImportMaterials ? 1 : 0),
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ImportTextures = (byte)(ImportTextures ? 1 : 0),
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RestoreMaterialsOnReimport = (byte)(RestoreMaterialsOnReimport ? 1 : 0),
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GenerateSDF = (byte)(GenerateSDF ? 1 : 0),
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SDFResolution = SDFResolution,
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SplitObjects = (byte)(SplitObjects ? 1 : 0),
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ObjectIndex = ObjectIndex,
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};
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}
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internal void FromInternal(ref InternalOptions options)
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{
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Type = options.Type;
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CalculateNormals = options.CalculateNormals != 0;
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SmoothingNormalsAngle = options.SmoothingNormalsAngle;
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FlipNormals = options.FlipNormals != 0;
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SmoothingTangentsAngle = options.SmoothingTangentsAngle;
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CalculateTangents = options.CalculateTangents != 0;
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OptimizeMeshes = options.OptimizeMeshes != 0;
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MergeMeshes = options.MergeMeshes != 0;
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ImportLODs = options.ImportLODs != 0;
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ImportVertexColors = options.ImportVertexColors != 0;
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ImportBlendShapes = options.ImportBlendShapes != 0;
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LightmapUVsSource = options.LightmapUVsSource;
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CollisionMeshesPrefix = options.CollisionMeshesPrefix;
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Scale = options.Scale;
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Rotation = options.Rotation;
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Translation = options.Translation;
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CenterGeometry = options.CenterGeometry != 0;
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FramesRangeStart = options.FramesRangeStart;
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FramesRangeEnd = options.FramesRangeEnd;
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DefaultFrameRate = options.DefaultFrameRate;
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SamplingRate = options.SamplingRate;
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SkipEmptyCurves = options.SkipEmptyCurves != 0;
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OptimizeKeyframes = options.OptimizeKeyframes != 0;
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EnableRootMotion = options.EnableRootMotion != 0;
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RootNodeName = options.RootNodeName;
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GenerateLODs = options.GenerateLODs != 0;
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BaseLOD = options.BaseLOD;
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LODCount = options.LODCount;
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TriangleReduction = options.TriangleReduction;
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ImportMaterials = options.ImportMaterials != 0;
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ImportTextures = options.ImportTextures != 0;
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RestoreMaterialsOnReimport = options.RestoreMaterialsOnReimport != 0;
|
|
GenerateSDF = options.GenerateSDF != 0;
|
|
SDFResolution = options.SDFResolution;
|
|
SplitObjects = options.SplitObjects != 0;
|
|
ObjectIndex = options.ObjectIndex;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Tries the restore the asset import options from the target resource file. Applies the project default options too.
|
|
/// </summary>
|
|
/// <param name="options">The options.</param>
|
|
/// <param name="assetPath">The asset path.</param>
|
|
/// <returns>True settings has been restored, otherwise false.</returns>
|
|
public static void TryRestore(ref ModelImportSettings options, string assetPath)
|
|
{
|
|
ModelImportEntry.Internal_GetModelImportOptions(assetPath, out var internalOptions);
|
|
options.FromInternal(ref internalOptions);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Model asset import entry.
|
|
/// </summary>
|
|
/// <seealso cref="AssetImportEntry" />
|
|
public class ModelImportEntry : AssetImportEntry
|
|
{
|
|
private ModelImportSettings _settings = new ModelImportSettings();
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="ModelImportEntry"/> class.
|
|
/// </summary>
|
|
/// <param name="request">The import request.</param>
|
|
public ModelImportEntry(ref Request request)
|
|
: base(ref request)
|
|
{
|
|
// Try to restore target asset model import options (useful for fast reimport)
|
|
ModelImportSettings.TryRestore(ref _settings, ResultUrl);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override object Settings => _settings;
|
|
|
|
/// <inheritdoc />
|
|
public override bool TryOverrideSettings(object settings)
|
|
{
|
|
if (settings is ModelImportSettings o)
|
|
{
|
|
_settings = o;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override bool Import()
|
|
{
|
|
return Editor.Import(SourceUrl, ResultUrl, _settings);
|
|
}
|
|
|
|
#region Internal Calls
|
|
|
|
[MethodImpl(MethodImplOptions.InternalCall)]
|
|
internal static extern void Internal_GetModelImportOptions(string path, out ModelImportSettings.InternalOptions result);
|
|
|
|
#endregion
|
|
}
|
|
}
|