# 3DF 27.00

## Library Compatibility Information

Library Name | Version | Windows | Linux | OS X | Notes
--- | --- | --- | --- | --- | ---
DGN Direct | 4.2 |  |  |  |
HOOPS Communicator | 2021 |  |  |  |
HOOPS Exchange | 2022 |  |  |  |
HOOPS Publish | 2022 |  |  |  | Requires support for SSSE3 instruction set.
.NET Framework | 4.0 |  |  |  | v4.5 required for wpf_image and for WPF over Remote Desktop
Parasolid | 32.0.x |  |  |  |
Qt | 5.12.7 |  |  |  | Visualize is compatible with Qt 5.4 on OSX
RealDWG | 2019 |  |  |  | RealDWG 2019 is compatible with Visual Studio 2015 Update 3 and Visual Studio 2017 Update 2
SketchUp | 2021 |  |  |  | 64-bit Windows only. Requires Visual Studio 2019 Redistributable.

## Enhancements

Front face culling now available. A new option, “face culling”, has been added to Set_Heuristics. This option replaces “backplane cull”, and accepts either “front” or “back” as parameters, enabling front-face or back-face culling, respectively.

## Functional Changes

Windows minimum version. For developers targeting Windows, Windows 10 64-bit is now the minimum version. Support for Windows 7, Windows 8, Windows 8.1, Windows Server 2008, and all Windows 32-bit operating systems is deprecated.

iOS minimum version. For developers targeting iOS, iOS 11.0 is now the minimum version. The minimum required compiler is now Xcode 12.2 (LLVM).

macOS minimum version. For developers targeting macOS, macOS version 10.14 is the minimum version. The minimum required compiler is now Xcode 12.2 (LLVM).

Extent Culling. We have fixed a bug with extent culling so that single-point shells will now correctly respect the culling settings. Previously, culling was not applied to single-point shells. In some applications this may result in a significant behavioral change where markers or point clouds comprised of single-point shells will be culled. If you do not want single-point shells to be culled, disable extent culling.

Hardware-Accelerated Text. Hardware-accelerated text is now on by default.

## Fixed Bugs

Issue Number | Description
--- | ---
SDHV-11071 | Performance drop when using TextKit
SDHV-11063 | Antialiased text looks bad
SDHV-11036 | Selecting entities in this file sometimes causes them to disappear temporarily
SDHV-10995 | orbit mode becomes slow after hiding lines
SDHV-10974 | Unwanted bold text in PDF files
SDHV-10920 | A bug in Hoops 26.10
SDHV-10896 | Android crash on Samsung Galaxy note 20
SDHV-10637 | Incorrect reflection is rendered for orthographic projection type
SDHV-10593 | Show_Memory_Usage overflow when return value is more then 2GB
SDHV-9999 | Crash with HOOPS texture definition on double precision rendering