gistfile1.txt

vertexData = {
    x, y, 0.0f, 0.0f,
    x+w, y, 1.0f, 0.0f,
    x, y+h, 0.0f, 1.0f,
    x+y, y+h, 1.0f, 1.0f
};

LOG(INFO) << "[sprite] " << x << " " << y << " " << w << " " << h << endl;

// example: [sprite] 288 288 32 32


#version 330 core

layout (location = 0) in vec2 position;
layout (location = 1) in vec2 inTexCoord;

uniform mat4 projection;

out vec2 texCoord;

void main()
{
    gl_Position = projection * vec4(position.x, position.y, 0.0, 1.0);
    texCoord = vec2(inTexCoord.x,  inTexCoord.y);
}