<xr-scene ar-system="modes:Marker" id="xr-scene" >   <xr-asset-load type="gltf" asset-id="night_car_landscape" src="https://mmbizwxaminiprogram-1258344707.cos.ap-guangzhou.myqcloud.com/xr-frame/demo/night_car_landscape.glb" />   <xr-asset-post-process asset-id="bloom" type="bloom" is-hdr data="radius: 64, intensity: 1, threshold: 0.5, softThreshold: 0.3" />   <xr-ar-tracker mode="Marker" src="/Assets/1.jpg">     <xr-gltf node-id="gltf_1" position="0 0 0" rotation="-90 0 0" scale="0.005 0.005 0.005" model="night_car_landscape"></xr-gltf>   </xr-ar-tracker>   <xr-camera clear-color="0 0 0 1" background="ar" is-ar-camera post-process="bloom"></xr-camera> </xr-scene>  1: ar模式中 bloom 开启 is-hdr 会花屏 2: ar模式中 bloom 开启 会让摄像机看到的实景画面曝光严重.

<xr-scene ar-system="modes:Marker" id="xr-scene" >   <xr-asset-load type="gltf" asset-id="night_car_landscape" src="https://mmbizwxaminiprogram-1258344707.cos.ap-guangzhou.myqcloud.com/xr-frame/demo/night_car_landscape.glb" />   <xr-asset-post-process asset-id="bloom" type="bloom" is-hdr data="radius: 64, intensity: 1, threshold: 0.5, softThreshold: 0.3" />   <xr-ar-tracker mode="Marker" src="/Assets/1.jpg">     <xr-gltf node-id="gltf_1" position="0 0 0" rotation="-90 0 0" scale="0.005 0.005 0.005" model="night_car_landscape"></xr-gltf>   </xr-ar-tracker>   <xr-camera clear-color="0 0 0 1" background="ar" is-ar-camera post-process="bloom"></xr-camera> </xr-scene> 1: ar模式中 bloom 开启 is-hdr 会花屏 2: ar模式中后处理效果希望可以只针对虚拟物体生效(如:模型,特效等) 现在开起bloom会让摄像机看到的画面曝光严重.