在 3D 世界里，一个物体 = 几何体 + 材质。
Фото: Slawomir Kaminski / Agencja Wyborcza.pl / Reuters
，更多细节参见新收录的资料
The self-styled “punk” beer company BrewDog sold its Highland estate for a knockdown price after abandoning its efforts to plant Scotland’s “biggest ever forest” there.
It’s a similar story for the Mix’s noise-cancellation and transparency modes. They’re good: ANC mode provides a strong reduction in background noise—perfect for the gym, the bus, or anywhere you need a bit of peace and quiet—but you don’t get the same level of hush as you do with the Sony, Bose, or Apple. Transparency lets in lots of ambient sound, and yet (as we’ll discuss in a moment), that doesn’t include your own voice, which can still sound a little muffled.