在 SceneKit 中，SCNLightTypeAmbient 类型的 SCNLight 是否会忽略 categoryBitMask 参数？

Question

好像是！

这里忽略了categoryBitMask:

ambientLight = [SCNLight light];
ambientLight.color = [UIColor colorWithRed:0.994 green:0.715 blue:0.179 alpha:1.000];
ambientLight.type = SCNLightTypeAmbient;
ambientLight.categoryBitMask = 1;

有效！

ambientLight = [SCNLight light];
ambientLight.color = [UIColor colorWithRed:0.994 green:0.715 blue:0.179 alpha:1.000];
ambientLight.type = SCNLightTypeOmni;
ambientLight.categoryBitMask = 1;

Answer 1

没错，环境光的categoryBitMask被忽略了（缺少文档）。请注意，您可以配置材质以忽略环境照明：

aMaterial.locksAmbientWithDiffuse = NO;
aMaterial.ambient.contents = blackColor; (the default)

在 SceneKit 中，SCNLightTypeAmbient 类型的 SCNLight 是否会忽略 categoryBitMask 参数？

In SceneKit, does an SCNLight of type SCNLightTypeAmbient ignore the categoryBitMask parameter?

objective-c

ios

scenekit