Basic OpenGL Vertex Shader

#version 330 core

/* Input from OpenGL */
layout (location = 0) in vec3 position;
layout (location = 1) in vec2 texCoord;

/* Output to fragment shader */
out vec2 vtxCoord;

void main()
{
    gl_Position = vec4(position.x, position.y, position.z, 1.0);
    vtxCoord = texCoord;
}