I&#x27;ve experienced photorealism in games, even on last-generation hardware - but only in certain scenes. The PS3 &#x2F; Xbox 360 open-world crime-drama game Sleeping Dogs, for instance, genuinely looks like a movie in certain areas, on foot, at night, when the weather cycle has gone to rain. On the other hand, driving, during the daytime, in the Central district looks more like a Dreamcast title.<p>The big challenge I see is not photorealism, but <i>consistent</i> photorealism. In the Sleeping Dogs example, the game&#x27;s engine is optimized for its iconic scenes of rain-slicked Hong Kong backstreets, but the tricks it uses don&#x27;t hold up well in other contexts.