在 SceneKit 中使用阴影时减少应用程序延迟 [英] Reduce Application Lag while using shadows in SceneKit

问题描述

我正在 SceneKit 中处理 3D 地图.当我在 SceneKit 中启用定向光的投射阴影属性时，会出现阴影，但应用程序变得非常慢.

如何在保持场景阴影的同时减少延迟?

解决方案

使用

I am working on a 3D map in SceneKit. When I enable the Cast Shadow Property of a directional light in SceneKit, the shadows appear, but the application becomes very slow.

How do I reduce the lag while still maintaining shadows in the scene?

解决方案

Use Fake Shadows (shadows generated as a texture in 3D authoring or 2D authoring app) rather than True Shadow Map. To apply fake shadows as a texture for 3D plane use PNG file format with premultiplied alpha channel (RGB * A). It considerably reduces Processing and Memory Usage when using shadows in RealityKit or SceneKit.

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