internal static Texture2D BuildPreviewTexture(UnityEngine.Object obj, int width, int height)
{
Texture2D previewTex = null;
var sprite = SVGImporter.GetImportedSprite(obj);
if (sprite != null)
{
var mat = SVGImporter.CreateSVGSpriteMaterial(sprite);
previewTex = VectorUtils.RenderSpriteToTexture2D(sprite, width, height, mat, 4);
Material.DestroyImmediate(mat);
}
#if UNITY_2019_3_OR_NEWER
else
{
Vector2[] vertices = null;
UInt16[] indices = null;
Vector2[] uvs = null;
Color[] colors = null;
Vector2[] settings = null;
Texture2D atlas = null;
Vector2 size = Vector2.zero;
if (InternalBridge.GetDataFromVectorImage(obj, ref vertices, ref indices, ref uvs, ref colors, ref settings, ref atlas, ref size))
{
var mat = SVGImporter.CreateSVGSpriteMaterial(atlas != null);
previewTex = InternalBridge.RenderVectorImageToTexture2D(obj, width, height, mat, 4);
Material.DestroyImmediate(mat);
}
}
#endif
return(previewTex);
}
public override void OnPreviewGUI(Rect r, GUIStyle background)
{
if (Event.current.type != EventType.Repaint)
{
return;
}
background.Draw(r, false, false, false, false);
Texture2D previewTex = null;
var sourceSize = Vector2.zero;
#if UNITY_2019_3_OR_NEWER
UnityEngine.Object vectorImage = null;
Texture2D vectorImageAtlas = null;
#endif
var sprite = SVGImporter.GetImportedSprite(assetTarget);
if (sprite == null)
{
if (assetTarget is Texture2D)
{
EditorGUI.DrawTextureTransparent(r, (Texture2D)assetTarget, ScaleMode.ScaleToFit, 0.0f, 0);
return;
}
#if UNITY_2019_3_OR_NEWER
Vector2[] vertices = null;
UInt16[] indices = null;
Vector2[] uvs = null;
Color[] colors = null;
Vector2[] settingIndices = null;
Texture2D atlas = null;
Vector2 size = Vector2.zero;
InternalBridge.GradientSettingsBridge[] settings = null;
if (InternalBridge.GetDataFromVectorImage(assetTarget, ref vertices, ref indices, ref uvs, ref colors, ref settingIndices, ref settings, ref atlas, ref size))
{
vectorImage = assetTarget;
vectorImageAtlas = atlas;
sourceSize = size;
}
#endif
}
else
{
sourceSize = sprite.rect.size;
}
float zoomLevel = Mathf.Min(r.width / sourceSize.x, r.height / sourceSize.y);
Rect wantedRect = new Rect(r.x, r.y, sourceSize.x * zoomLevel, sourceSize.y * zoomLevel);
wantedRect.center = r.center;
previewTex = BuildPreviewTexture(assetTarget, (int)wantedRect.width, (int)wantedRect.height);
if (previewTex != null)
{
EditorGUI.DrawTextureTransparent(r, previewTex, ScaleMode.ScaleToFit);
Texture2D.DestroyImmediate(previewTex);
}
}