Any way to render post-processing (e.g. blooming)?

[ccloli]

Is it possible to render post-processing effects like blooming in PC view?

I tried to record a 360 video with this prefab, but just find the PC view doesn't have blooming effects. This happens not only on the 360 panorama view but also the 2D view.

An example captured from the prefab:

An example directly outputed from VRChat:

If the mirror in VRC is also implemented by Camera + RenderTexture like this prefeb, then the in-game camera and mirror are work as expected, so maybe I'm missing something?

I've tried changing color format of RenderTextures, by following https://forum.unity.com/threads/camera-render-texture-with-post-processing.817674/ , to these settings, but none of them working:

• R16G16B16A16_UNORM
• R16G16B16A16_SFLOAT
• R32G32B32A32_SFLOAT
• B10G11R11_UFLOAT_PACK32

Sorry I'm new to Unity, and I couldn't figure out how to fix it. Any idea to fix post-processing is appreciated (though I don't think it could work flawlessly in 8k with NVENC 🤔).

[ccloli]

Though I'm not sure whether the in-game blooming effect is defined in map, or added by the game itself? Since I remember the blooming effect in CCE Xiamen made it barely to read anything with lighting, until I turned off in-game blooming processing.

I guess the blooming effect is applied to any lighting objects, but the weight can be set in in-game settings. Though it doesn't answer the question. Weird. 🤔

---

BTW I'm using https://github.com/TheBug233/PFC.DroneKitPro , not this prefab directly, and this also applies to normal 2D view. So maybe it's also an issue for PFC.DroneKitPro?

[ccloli]

By digging around for a while, I guess I need Universal Render Pipeline to make it works. However, once I switch render pipeline to URP Asset and tick on Rendering -> Post Processing, a component called Universal Additional Camera Data is attached to camera object, and VRCSDK is not happy with that and disabled building, so... 🙃

[TheBug233]

This is related to the implementation principle of PFC.DroneKitPro. In PFC.DroneKitPro, I added a Camera component with a depth of 100. This allows the composited image to be displayed on the PC screen, but as a result, the bloom post-processing is not displayed.

For the 360 panoramic camera, the initial solution involved taking out the VRChat streaming camera and placing it inside the 360 panoramic camera to capture the scene. This approach can display the bloom post-processing, but it's too cumbersome. I'm not sure how to display the content of the bloom post-processing without using the VRC streaming camera. It might require specific shaders, or an alternative custom camera that can replace PFC.DroneKitPro.

[TheBug233]

原来是中国人啊，那咱可以不用英文了（

[TheBug233]

我用过VRCLens，这是另一个自定义相机的预制件，但非常吃性能，我4090也带不动8K了

功能上它的shader看起来像是能显示bloom，但有点不太一样，我不确定，有一段时间没用了，太卡了（
不过效果确实比PFC.DroneKitPro的要好点

[ccloli]

哈哈，之前在 b 站和 p4p 内测群里见过你，不过看你的项目都是用英文写的，所以就用英文提问了。提到 CCE Xiamen 时你居然还没反应过来 🤣

I'm not sure how to display the content of the bloom post-processing without using the VRC streaming camera. It might require specific shaders, or an alternative custom camera that can replace PFC.DroneKitPro.

VRC 自己的相机估计是走了 URP 的，所以能比 Unity 默认的相机多出 shader 之类的参数，来实现诸如 post-processing 的效果。Unity 论坛上找到的几个提问的也都是在 URP 的环境下，所以估计这是必须的，可惜 VRCSDK 不给用

自定义 shader 可能可行，但怎么实现也是一个问题，不借助 URP 的话，Camera 和 RenderTexture 都不支持套 shader

我用过VRCLens，这是另一个自定义相机的预制件，但非常吃性能，我4090也带不动8K了

功能上它的shader看起来像是能显示bloom，但有点不太一样，我不确定，有一段时间没用了，太卡了（ 不过效果确实比PFC.DroneKitPro的要好点

试了下 VRCLens 的 demo，能，也不能。不能是指从相机的预览里确实没有 blooming，基本上每个参数都试着调了下，区别不是很大。能是指开启了景深后，虚化的部分能看到似乎是外发光的效果，但是并没有什么意义，都糊成一片了 🤣