procedural-3d-engine/xcode/README_MoltenVK_Examples.md

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#MoltenVK Vulkan Examples
Copyright (c) 2014-2017 [The Brenwill Workshop Ltd.](http://www.brenwill.com) All rights reserved.
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<a name="intro"></a>
Introduction
------------
The *Xcode* project in this folder builds and runs the *Vulkan* examples in this
repository on *iOS* and *macOS*, using the **MoltenVK** *Vulkan* driver.
<a name="installing-moltenvk"></a>
Installing MoltenVK
-------------------
The examples in this repository can be run on *iOS* and *macOS* by using
the [**MoltenVK**](http://www.moltengl.com/moltenvk/) *Vulkan* driver.
Follow these instructions to install **MoltenVK**:
1. [Download](https://moltengl.com/free-trial/) the **Molten** free evaluation trial.
This free trial includes **MoltenVK**, is full-featured, and is not time-limited.
You must purchase a license if you wish to use **MoltenVK** for a production
application or game, but you can use the evaluation version to run these examples.
2. Unzip the **Molten** package, and move it to a folder outside this repository.
3. Open a *Terminal* session and navigate to the directory containing this document,
remove the existing `MoltenVK` symbolic link in this directory, and create a new
symbolic link pointing to the `MoltenVK` directory in the **Molten** package:
cd path-to-this-directory
rm MoltenVK
ln -s path-to-Molten-package/MoltenVK
<a name="running-examples"></a>
Running the Vulkan Examples
---------------------------
The single `examples.xcodeproj` *Xcode* project can be used to run any of the examples
in this repository on either *iOS* or *macOS*. To do so, follow these instructions:
1. Open the `examples.xcodeproj` *Xcode* project.
2. Specify which of the many examples within this respository you wish to run, by opening
the `examples.h` file within *Xcode*, and following the instructions in the comments
within that file to indicate which of the examples you wish to run.
3. Run either the `examples-iOS` or `examples-macOS` *Xcode Scheme* to run the example in *iOS*
or *macOS*, repectively.
4. Many of the examples include an option to press keys to control the display of features
and scene components:
- On *iOS*, tap on the scene to display the keyboard. Tap again on the scene to hide the keyboard.
- On both *iOS* and *macOS*, use the numeric keys (*1, 2, 3...*) instead of function keys (*F1, F2, F3...*).
- On both *iOS* and *macOS*, use the *delete* key instead of the *escape* key.