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Sequencer在高分辨率下输出错误

Hi, 我尝试使用sequencer输出视频。使用cinematic摄影机,200%屏幕尺寸,2560x1440分辨率下一切顺利。 但是当我选择用3840x2160分辨率进行输出时,无论100%还是200%屏幕尺寸,都会发生错误。其中100% 4K输出时,似乎抗锯齿过程(TAA)被一并输出了,所以画面显得很模糊而且撕裂。而200% 4K输出时,sequencer直接崩溃,输出失败。

我使用的显卡 是GTX 1080 8G, 内存 64G。

参考输出结果请参考这个连接: 链接:https://pan.baidu.com/s/1xYZF7vTdtrO9KBUSVZVN1A 提取码:9l3j

此外,当我使用Quadro P6000和Gefore GTX 1080分别用sequencer制作动画时,我注意到GTX会直接在屏幕上新建一个目标输出分辨率的窗口(如4k)来进行计算,由于显示器小于4K,因而这个窗口会占用超出一个屏幕。 而Quadro无论输出多大分辨率,在计算过程中,屏幕上都只有一个1000像素左右的小窗口在进行渲染,不占用屏幕,而且看上去稳定性要好得多。这是有目的设计的功能特性吗?

Product Version: UE 4.20
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asked Oct 20 '18 at 03:36 AM in Chinese

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FisherDai
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Hi Fisher, 从视频上暂时无法判断具体是哪里的原因,可以提供下崩溃时候的log和dump吗,他们一般存在项目文件夹下的Save文件夹下。

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answered Oct 22 '18 at 03:35 AM

avatar image Feng.Li STAFF Oct 23 '18 at 04:04 AM

看了下log,是渲染压力太大导致,可以适当调整TDR时间。

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