2015職稱英語考試?yán)砉ゎ怉級(jí)閱讀判斷專項(xiàng)練習(xí)

來源：本站原創(chuàng) 更新：2015/2/5 職稱英語考試論壇

Ever wondered how your cat or dog sees the world？Now you can look through their eyes with the first 3D game that recreates the vision of different species based on scientific evidence.

The online simulation，created by the French3D design company Dassault Systèmes，with the guidance of veterinary ophthalmologist （眼科專家)Didier Schmidt-Morand，mimics （模仿)the vision of five animals – cats dogs，rats，hawks and bees – as aplayer steers them through Place Vend洀攀 in Paris.

Due to differences in field of view，colour perception and night vision，for example，sight can be drastically different from species to species."In terms of performance，eyes are as variable as different models of cars，" says Schmidt-Morand.

The game was created by using existing virtual models of the square then applying effects based on descriptions of each animal's vision.Dassault's 3D software allows a scene to be modified by adding blur or changing the colours，angle of vision and depth of field.

Although it was easy to recreate vision inferior to that of humans – cats and dogs，for example，have trouble distinguishing shades of red –replicating features that we are unable to see was a challenge.Hawks have more detailed vision than ours，whereas dogs are better at seeing movement and have a wider field of view."We used virtual cameras to precisely simulate larger viewing angles but the result made people nauseous（令人作嘔的)，" says Schmidt-Morand."So we tweaked（微調(diào)) the model to give a sense of the wider view without sticking to reality."

The rat's view also departs from reality： because they are near-sighted，everything more than 15 centimetres away is ablur，so they typically move close to walls to help them navigate."A ratwould never throw itself into the middle of an open area，" says Schmidt-Morand.The simulation for this animal is supplemented with a map inthe top right corner to help determine the rat's position： because of their limited eyesight，most landmarks are obscured.

The game is intended as an educational resource and players can discuss their experience with others through community features on the website.If there is interest from schools and zoos，the team hopes to recreate the vision of more animals.

16.The game developed by Dassault Systemesis the first 3D game recreating the vision of different species .