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https://github.com/patriciogonzalezvivo/thebookofshaders
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23 lines
1.8 KiB
Markdown
23 lines
1.8 KiB
Markdown
## How to run the examples on a Raspberry Pi?
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A few years ago, assuming that everybody has a computer with a graphical processing unit was a long shot. Now, most computers have a GPU, but it's still a high bar for a requirement in a workshop or class, for example.
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Thanks to the [Raspberry Pi Foundation](http://www.raspberrypi.org/) a new type of small and cheap generation of computers (around $35 each) has found its way into classrooms. More importantly for the purposes of this book, the [Raspberry Pi](http://www.raspberrypi.org/) comes with a decent Broadcom GPU that can be accessed directly from the console. I made a [flexible GLSL live coding tool call **glslViewer**](https://github.com/patriciogonzalezvivo/glslViewer) that runs all the examples in this book. This program also has the ability to update automatically when the user saves a change to their code. What does this mean? You can edit the shader and every time you save it, the shader will be re-compile and render for you.
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By making a local copy of the repository of this book (see the above section) and having [```glslViewer``` installed](https://github.com/patriciogonzalezvivo/glslViewer), users can run the examples with ```glslviewer```. Also by using the ```-l``` flag they can render the example in a corner of the screen while they modify it with any text editor (like ```nano```, ```pico```, ```vi```, ```vim``` or ```emacs```). This also works if the user is connected through ssh/sftp.
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To install and set this all up on the Raspberry Pi after installing the OS and logging in, type the following commands:
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```bash
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sudo apt-get update
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sudo apt-get upgrade
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sudo apt-get install git-core
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cd ~
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git clone http://github.com/patriciogonzalezvivo/glslViewer.git
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cd glslViewer
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make
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make install
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cd ~
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git clone https://github.com/patriciogonzalezvivo/thebookofshaders.git
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cd thebookofshaders
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``` |