Method at

tutorials/convert/convert.cpp:30–40

      : texture(texture), bounds(bounds) {}
    
    const Vec3fa at(const size_t x, const size_t y)
    {
      const size_t width  = texture->width;
      const size_t height = texture->height;
      const Color4 c = texture->get(x,y);
      const Vec2f p(x/float(width-1),y/float(height-1));
      const float px = p.x*(bounds.upper.x-bounds.lower.x) + bounds.lower.x;
      const float py = c.r*(bounds.upper.y-bounds.lower.y) + bounds.lower.y;
      const float pz = p.y*(bounds.upper.z-bounds.lower.z) + bounds.lower.z;
      return Vec3fa(px,py,pz);
    }

    const AffineSpace3fa get(Vec2f p)
    {