陡峭的小峡谷,可能重积有冰雪.A steep gully which may have snow or ice.几天后一辆大篷车经过了这个小峡谷.A few days afterwards a heavy wagon pass through the gully.船到巫山时,我们绕道溯游大宁河,观赏了几处小峡谷.At Wushan we a detour up the Daning River to see some of the sm...
农民在秋天或春天犁田.Farmers plough in autumn or spring.还不如当初象黑人那样学会犁田、摘棉花呢.Better that I'd learned to plow or chop cotton like a darky.农民犁田只能一块一块地犁.Peasants can only plough the land plot by plot....
Attenuation, Scattering, Modeling water surface, Light shafts, Caustics.衰减, 散射, 水面建模, 光线束, 焦散.Now, we will try to simulate some nice prism affects for the caustics.现在, 我们将尝试为焦散模拟出一些好看的棱镜效果....