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Processing paint program: Save an image
This tutorial leads on from the last tutorial about creating an eraser. We will add a save image function so we can save our masterpieces more easily! You will learn about characters and strings. Then how to give each saved image a unique name, so they don’t overwrite each other. We will also save each…
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Processing paint program: Creating an eraser
This tutorial teaches you how to add an eraser to the paint program, and follows on from the last tutorial about changing the brush size. We will also pick better colors, which aren’t so bright.
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Processing paint program: Changing the brush size
This tutorial leads on from the last tutorial, where we created a basic paint program. We are now going to improve our paint program by adding some new features. The user will be able to change the brush size and clear the screen.
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Creating a painting program in Processing
This tutorial will show you how to create a painting program in Processing. You will learn how to draw shapes using mouse input. You will use keyboard input to change the colour and the type of shape to draw. You will learn about if statements, how to create your own functions and how to create…
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Creating a animated mosaic pattern in Processing
This tutorial will show you how quick and easy it is to use Processing and Java to create art using code. You will learn how to create a beautiful animated mosaic pattern. No prior knowledge of coding is required. All you need is a willingness to learn.
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Creating a spotlight effect in Shadertoy
This tutorial will show you how to create a animated spotlight effect in Shadertoy. You will learn how to animate the circle using time and a sine wave. So the circle moves back-and-forth across the screen.
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Creating a sepia vignette effect in GIMP
Learn how to create a sepia vignette effect in the GIMP image editor. The process should be similar for other image editors like Adobe Photoshop. You will adjust the contrast, convert to greyscale, colorize, and use an ellipse with gaussian blur to create a vignette.
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Creating a simple vignette in Shadertoy
Creating a vignette shader effect in Shadertoy is easy and fun. You can learn to manipulate UV coordinates, create a circle function, and add ambient light to enhance the effect. Experiment with ambient light, circle position, radius, and smoothness to perfect your vignette. Start creating on Shadertoy and unleash your creativity!
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A gentle introduction to Shadertoy
Learn how to create and share shaders online using the easy to use Shadertoy from scratch. No math or programming knowledge is required to complete this tutorial. This tutorial will teach you all you need to know to get started, so I encourage you to give it a go :)
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How to invert an image in a shader
This tutorial demonstrates how to invert any or all of the image RGB channels using a GLSL shader. By following these simple steps, you can easily manipulate and invert specific colour channels in your images.
Agate DRAGON Games
Creating games, shaders and pixel art
Agate DRAGON Games 