#version 330

// Input vertex attributes
in vec3 vertexPosition;
in vec2 vertexTexCoord;
in vec3 vertexNormal;
in vec4 vertexColor;

// Input uniform values
uniform mat4 mvp;
uniform mat4 matModel;

// Output vertex attributes (to fragment shader)
out vec2 fragTexCoord;
out vec4 fragColor;

// NOTE: Add your custom variables here
out vec3 worldPosition;
out vec3 worldNormal;

void main()
{
    // Send vertex attributes to fragment shader
    fragTexCoord = vertexTexCoord;
    fragColor = vertexColor;

    // Calculate final vertex position
    gl_Position = mvp*vec4(vertexPosition, 1.0);
    worldPosition = (matModel * vec4(vertexPosition, 1.0)).xyz;
    worldNormal = mat3(matModel) * vertexNormal;
}