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Add support for up to 4 texture channels when importing meshes

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#2667
This commit is contained in:
Wojtek Figat
2025-01-11 22:40:20 +01:00
parent 756ba0a533
commit a1c46d2e6e
31 changed files with 427 additions and 475 deletions
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134
Source/Editor/Windows/Assets/ModelBaseWindow.cs
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@@ -93,6 +93,118 @@ namespace FlaxEditor.Windows.Assets
}
}
protected class UVsPropertiesProxyBase : PropertiesProxyBase
{
public enum UVChannel
{
None,
TexCoord0,
TexCoord1,
TexCoord2,
TexCoord3,
LightmapUVs,
};
private UVChannel _uvChannel = UVChannel.None;
[EditorOrder(0), EditorDisplay(null, "Preview UV Channel"), EnumDisplay(EnumDisplayAttribute.FormatMode.None)]
[Tooltip("Set UV channel to preview.")]
public UVChannel Channel
{
get => _uvChannel;
set
{
if (_uvChannel == value)
return;
_uvChannel = value;
Window._meshData?.RequestMeshData(Window._asset);
}
}
[EditorOrder(1), EditorDisplay(null, "LOD"), Limit(0, Model.MaxLODs), VisibleIf("ShowUVs")]
[Tooltip("Level Of Detail index to preview UVs layout.")]
public int LOD = 0;
[EditorOrder(2), EditorDisplay(null, "Mesh"), Limit(-1, 1000000), VisibleIf("ShowUVs")]
[Tooltip("Mesh index to preview UVs layout. Use -1 for all meshes")]
public int Mesh = -1;
private bool ShowUVs => _uvChannel != UVChannel.None;
/// <inheritdoc />
public override void OnClean()
{
Channel = UVChannel.None;
base.OnClean();
}
protected class ProxyEditor : ProxyEditorBase
{
private UVsLayoutPreviewControl _uvsPreview;
public override void Initialize(LayoutElementsContainer layout)
{
var proxy = (UVsPropertiesProxyBase)Values[0];
if (Utilities.Utils.OnAssetProperties(layout, proxy.Asset))
return;
base.Initialize(layout);
_uvsPreview = layout.Custom<UVsLayoutPreviewControl>().CustomControl;
_uvsPreview.Window = proxy.Window;
}
/// <inheritdoc />
public override void Refresh()
{
base.Refresh();
if (_uvsPreview != null)
{
var proxy = (UVsPropertiesProxyBase)Values[0];
switch (proxy._uvChannel)
{
case UVChannel.TexCoord0: _uvsPreview.Channel = 0; break;
case UVChannel.TexCoord1: _uvsPreview.Channel = 1; break;
case UVChannel.TexCoord2: _uvsPreview.Channel = 2; break;
case UVChannel.TexCoord3: _uvsPreview.Channel = 3; break;
case UVChannel.LightmapUVs:
{
_uvsPreview.Channel = -1;
if (proxy.Window.Asset && proxy.Window.Asset.IsLoaded)
{
// Pick UVs channel index from the first mesh
proxy.Window.Asset.GetMeshes(out var meshes);
foreach (var mesh in meshes)
{
if (mesh is Mesh m && m.HasLightmapUVs)
{
_uvsPreview.Channel = m.LightmapUVsIndex;
break;
}
}
}
break;
}
default: _uvsPreview.Channel = -1; break;
}
_uvsPreview.LOD = proxy.LOD;
_uvsPreview.Mesh = proxy.Mesh;
_uvsPreview.HighlightIndex = proxy.Window._highlightIndex;
_uvsPreview.IsolateIndex = proxy.Window._isolateIndex;
}
}
protected override void Deinitialize()
{
_uvsPreview = null;
base.Deinitialize();
}
}
}
protected sealed class UVsLayoutPreviewControl : RenderToTextureControl
{
private int _channel = -1;
@@ -168,15 +280,21 @@ namespace FlaxEditor.Windows.Assets
}
}
private void DrawMeshUVs(int meshIndex, ref MeshDataCache.MeshData meshData)
private void DrawMeshUVs(int meshIndex, ref MeshDataCache.MeshData meshData, ref Rectangle bounds)
{
var uvScale = Size;
if (meshData.IndexBuffer == null || meshData.VertexAccessor == null)
{
Render2D.DrawText(Style.Current.FontMedium, "Missing mesh data", bounds, Color.Red, TextAlignment.Center, TextAlignment.Center);
return;
}
var linesColor = _highlightIndex != -1 && _highlightIndex == meshIndex ? Style.Current.BackgroundSelected : Color.White;
var texCoordStream = meshData.VertexAccessor.TexCoord(_channel);
if (!texCoordStream.IsValid)
{
Render2D.DrawText(Style.Current.FontMedium, "Missing texcoords channel", bounds, Color.Yellow, TextAlignment.Center, TextAlignment.Center);
return;
}
var uvScale = bounds.Size;
for (int i = 0; i < meshData.IndexBuffer.Length; i += 3)
{
// Cache triangle indices
@@ -206,19 +324,19 @@ namespace FlaxEditor.Windows.Assets
{
base.DrawSelf();
var size = Size;
if (_channel < 0 || size.MaxValue < 5.0f)
var bounds = new Rectangle(Float2.Zero, Size);
if (_channel < 0 || bounds.Size.MaxValue < 5.0f)
return;
if (Window._meshData == null)
Window._meshData = new MeshDataCache();
if (!Window._meshData.RequestMeshData(Window._asset))
{
Invalidate();
Render2D.DrawText(Style.Current.FontMedium, "Loading...", new Rectangle(Float2.Zero, size), Color.White, TextAlignment.Center, TextAlignment.Center);
Render2D.DrawText(Style.Current.FontMedium, "Loading...", bounds, Color.White, TextAlignment.Center, TextAlignment.Center);
return;
}
Render2D.PushClip(new Rectangle(Float2.Zero, size));
Render2D.PushClip(bounds);
var meshDatas = Window._meshData.MeshDatas;
var lodIndex = Mathf.Clamp(_lod, 0, meshDatas.Length - 1);
@@ -230,12 +348,12 @@ namespace FlaxEditor.Windows.Assets
{
if (_isolateIndex != -1 && _isolateIndex != meshIndex)
continue;
DrawMeshUVs(meshIndex, ref lod[meshIndex]);
DrawMeshUVs(meshIndex, ref lod[meshIndex], ref bounds);
}
}
else
{
DrawMeshUVs(mesh, ref lod[mesh]);
DrawMeshUVs(mesh, ref lod[mesh], ref bounds);
}
Render2D.PopClip();