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首页 » [硬件-HARDWARE] » 显卡及图形技术讨论区 » N卡physx物理效果全体验(幽灵行动篇)
hard仔 - 2008-9-5 18:01:00
详细原帖发在 WWW.amdforums.cn¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
其中有详细的物理岛测试¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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支持物理引擎方面的AGEIA率先提出PPU(物理处理单元),AG认为图形渲染由GPU完成,而在物理方面则由独立的物理单元完成,而且还推出了轰动一时采用PHYSX引擎的物理加速卡,然而由于当时对其支持的游戏(其中支持的有幽灵行动和细胞因子等)少之又少导致之后被MC评为悲情技术!虽然当时PPU的性能不俗,但是却缺少一个供其发展的平台和有效的策略。自从AGEIA被NV收下之后PHYSX引擎得NV方面的发展,而NV方面没有继续发展PPU而是把物理部分的运算也交给GPU。物理运算通过PhysX引擎且由CUDA架构去完成。近期NV推出物理驱动,而且支持CUDA架构的GPU(GF8XX,9XX,2XX系列)都将会支持PHYSX物理引擎技术,从而省去额外买物理加速卡也可以享受到极致的物理效果。¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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      下面是在通过幽灵行动的PHYSX支持对N卡物理效果的全体现¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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    测试有2个部分,一是在普通关卡中体现普通物理设置,高物理(PHYSX),和极致物理(PHYSX),二是体验在幽灵行动中专为PHYSX而设的物理岛¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
在游戏中所有画质效果设置到最高,开4X,分辨率为1024.¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
    测试平台如下¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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第一部分是在幽灵行动的关卡中体现没开PHYSX物理的效果¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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上图可以见开枪时地上只有少量的碎片和尘土¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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对树干开枪也只有少量碎片¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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上图的爆炸中可以看出爆炸掀起一定量的碎片和粒子,而其中旁边的木栏杆也相应地受到破环在开普通物理效果时幽灵行动的场景也看到一定的物理互动,而且在运行中幁速保持在60到90之间。¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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下面是开高的物理的效果,支持PHYSX¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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在高物理下可见地面产生大量的碎片,而幁数则跌到30,40幁¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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上图可见有大量的碎片¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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爆炸中可见到爆炸的火焰和碎片大量增加,而且旁边的木栏杆受到更加严重的损毁,支离破碎的木块在飞散开了PHYSX物理后可见在场景中大量增加了碎片和场景的破环程度,不过代价是幁数的下跌,由80幁左右跌到30到40,而且在爆炸中幁数更加低。从这可以了解到场景中制造大量的碎片要消耗不少的资源,不过要体现全更加真实的效果,性能的损失是必然的。¾5þr9y^üœëclub.inpai.com.cnV†}^ªØ³é¸
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