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关于12.6节动态模糊,accumulateTexture变量的问题 #339

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@gahara123

作者您好,关于P264(5)中的代码
想请问一下accumulateTexture变量的意义,结尾处
Graphics.Blit(source, accumulationTexture, material); Graphics.Blit(accumulationTexture, destination);
两行代码为什么不直接用Grphics.Blit(source,destination,material)代替,我代替之后也出现了运动模糊的效果。
这一节的shader用的Blend命令我理解是和颜色缓存进行混合//这里不知道是否有误,所以就不知道为什么需要accumulateTexture作为中间量一直存储了

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