#version 430 core
layout (location = 0) out vec3 vertexPosition;
layout (location = 1) out vec3 vertexNormal;
layout (location = 2) in vec2 vertexTexCoords;

out vec3 FragPos;
out vec2 TexCoords;
out vec3 Normal;

uniform bool invertedNormals;

uniform mat4 modelMatrix;
uniform mat3 transformation;

uniform mat4 view;
uniform mat4 projection;

void main()
{
    vec4 viewPos = transformation * vec4(vertexPosition, 1.0);
    FragPos = viewPos.xyz; 
    TexCoord = vertexTexCoords;
    
    mat3 normalMatrix = transpose(inverse(mat3( * model)));
    Normal = normalMatrix * (invertedNormals ? -aNormal : aNormal);
    
    gl_Position = viewPos;
}