#version 400 core
layout(location = 0) in vec3 vertex_position; // position
layout(location = 1) in vec3 vertex_normal; // colour of each vertex point
layout(location = 2) in vec2 vertex_tex;
layout(location = 3) in vec4 vertex_colour;

out vec2 TexCoord;
out vec4 VertexColour;

uniform mat4 matrix; // must match "matrix" in C code
uniform mat4 view;   // must match "view" in C code
uniform mat4 proj;   // must match "proj" in C code

void main() {
    gl_Position = proj * view * matrix * vec4(vertex_position, 1.0);
    TexCoord = vertex_tex;
    VertexColour = vertex_colour;
}