glVertexPointer(3, GL_FLOAT, GLsizei(sizeof(Vertex)), mesh->verts[0].pos);
    glNormalPointer(GL_FLOAT, GLsizei(sizeof(Vertex)), mesh->verts[0].n);
    glTexCoordPointer(2, GL_FLOAT, GLsizei(sizeof(Vertex)), mesh->verts[0].tc);

    glDrawElements(GL_TRIANGLES, GLsizei(mesh->tris.size()*3), GL_UNSIGNED_INT, &mesh->tris[0]);