private static bool TryGetMeshData(Sprite sprite, SpriteConfigData data, out Vector2[] vertices, out ushort[] triangles, MeshRenderType meshRenderType)
{
vertices = Array.Empty <Vector2>();
triangles = Array.Empty <ushort>();
if (data == null || !data.overriden)
{
return(false);
}
Vector2[][] paths = OutlineUtil.GenerateOutline(sprite, data, meshRenderType);
TriangulationUtil.Triangulate(paths, data.edgeSmoothing, data.useNonZero, out vertices, out triangles);
//validate
if (vertices.Length >= ushort.MaxValue)
{
Debug.LogErrorFormat($"Too many veretics! Sprite '{sprite.name}' has {vertices.Length} vertices.");
return(false);
}
return(true);
}
public static bool TryGetVertexAndTriangle2D(this Sprite sprite, SpriteConfigData configData, out Vector2[] vertices, out ushort[] triangles, MeshRenderType meshRenderType)
{
vertices = Array.Empty <Vector2>();
triangles = Array.Empty <ushort>();
if (configData == null || sprite == null ||
configData.mode == SpriteConfigData.Mode.UnityDefaultForTransparent ||
configData.mode == SpriteConfigData.Mode.UnityDefaultForOpaque)
{
return(false);
}
Vector2[][] paths = OutlineUtil.GenerateOutline(sprite, configData, meshRenderType);
if (meshRenderType == MeshRenderType.Grid)
{
vertices = paths[0];
triangles = new ushort[vertices.Length];
for (var i = 0; i < triangles.Length; i++)
{
triangles[i] = (ushort)i;
}
}
else
{
TriangulationUtil.Triangulate(paths, configData.edgeSmoothing, configData.useNonZero, out vertices, out triangles);
}
//validate
if (vertices.Length >= ushort.MaxValue)
{
Debug.LogErrorFormat($"Too many vertices! Sprite '{sprite.name}' has {vertices.Length} vertices.");
return(false);
}
return(true);
}