开发者

Don't erase background for visual trace in Quartz Composer

开发者 https://www.devze.com 2023-04-02 12:21 出处:网络
I it possible NOT to clear the background in Quartz Composer? I want to move an image across the screen and keep it visible at the old positions to have some sort of trace effect.

I it possible NOT to clear the background in Quartz Composer? I want to move an image across the screen and keep it visible at the old positions to have some sort of trace effect.

Thanks an开发者_JAVA技巧d regards,

Sebastian Mecklenburg


Do your rendering inside a Render In Image patch, and connect its output to an Addition patch. Connect the output of Addition to an Accumulator patch, and connect the output of the Accumulator patch to the "Background Image" port of the Addition patch, to create a feedback loop. Then connect the Addition patch to a Billboard.

Don't erase background for visual trace in Quartz Composer


Check 'Enable Feedback Rendering' under the properties for the Render In Image patch.

Don't erase background for visual trace in Quartz Composer

0

精彩评论

暂无评论...
验证码 换一张
取 消

关注公众号