Creating your own Shaders

WayVes reads Shaders that follow the below hierarchy:


    Shader Name
    |   vertex
    |       | 1.vert
    |       | 2.vert
    |       .
    |       .
    |       .
    |   fragment
    |       | 1.frag
    |       | 2.frag
    |       .
    |       .
    |       .

The pair of Vertex and Fragment Shaders get compiled and executed in the order in which they are numbered.

INFO:

When number of Vertex Shader files <= number of Fragment Shader files, then the default Vertex Shader File will be used:


#version 330 core
layout(location = 0) in vec3 aPos;
void main()
{
    gl_Position = vec4(aPos.x, aPos.y, 0.0f, 1.0);
}

By using Shaders in this way, you can utilise the output of the 'previous' pass and consume it for some Post-Processing Effects

Uniforms WayVes provides several uniforms that can be consumed in a Shader.

Property	Description
uniform float time	Value of the current frame. When targeting 60 fps, the last frame within the first second should be 60. Supplied as a float for bypassing unnecessary type-casts
uniform vec2 resolution	The Resolution of the View, where the resolution.x is windowWidth, and resolution.y is windowHeight
uniform sampler1D audioL	1D Texture containing Audio data for the Left-mapped Audio Channel
uniform sampler1D audioR	1D Texture containing Audio data for the Right-mapped Audio Channel
uniform int audioLSize	Size of the Left-mapped Audio Channel
uniform int audioRSize	Size of the Right-mapped Audio Channel
layout(binding = [0...atomicN], r32ui) uniform uimage2D atomicImageTexture[0...atomicN]	2D unsigned integer Texture that is used for Atomic Image Load / Store operations. Specify the layout binding in increasing numbers starting from 0, and increase the value of N by 1 for each Atomic Texture you require
layout(binding = atomicN + [0...imageN], rgba32f) uniform restrict image2D imageTexture[0...imageN]	2D 32-bit floating Texture that is used for arbitrary Image Load / Store operations. Specify the layout binding in increasing numbers starting from the number after the last Atomic Texture Binding Number used, and increase the value of N by 1 for each Image Texture you require
uniform sampler2D tex	2D Texture that contains the output of the previous Fragment Shader pass. Available only for Shader Stages 2 and onwards

Minimal Fragment Shader Example; all Uniforms


#define version 430

in vec4 gl_FragCoord;

uniform float time;
uniform vec2 resolution;

uniform sampler2D tex; // Not available in 1.frag

uniform sampler1D audioL;
uniform int audioLSize;

uniform sampler1D audioR;
uniform int audioRSize;

layout(r32ui, binding = 0) uniform uimage2D atomicImageTexture0;

layout(binding = 1, rgba32f) uniform image2D imageTexture0;
layout(binding = 2, rgba32f) uniform image2D imageTexture1;

out vec4 FragColor;

void main()
{
}