ShaderDev

A desktop application for developing GLSL compute shaders for the purpose of image processing.

Dependencies

• Qt >= 5.10
• SpvShaderCompiler
• glslang
• Vulkan

Build

The easiest way to build is to open the project in QtCreator and compile for the desired platform.

QMake is set up for either Linux or Windows.

Usage

Load the file shaders/noop.comp to see what a simple shader looks like. This one loads the image and renders it to the screen, without doing anything else.

#version 450

layout (local_size_x = 16, local_size_y = 16) in;
layout (binding = 0, rgba8) uniform readonly image2D inputImage;
layout (binding = 1, rgba8) uniform image2D resultImage;

void main()
{   
    ivec2 pixelCoords = ivec2(gl_GlobalInvocationID.xy);

    vec3 rgb = imageLoad(inputImage, pixelCoords).rgb;  
                                    
    vec4 pixel = vec4(rgb, 1.0);

    imageStore(resultImage, pixelCoords, pixel);
}

There are two bindings:

• inputImage: The image that was loaded from disk.
• resultImage: The final image that will be written to.

In the shaders folder there are also a couple of examples. I will add more in the future.