Renderer sRGBEncoding won't work with my own skybox shader

[benzsuankularb]

Hi, I’m using RGBELoader to load HDR texture and use it as the source of my custom skybox shader.

I didn’t use a cubemap like the standard Three.js example but sampled each pixel from equirectangular texture using spherical coordinate.

As far as I understand setting renderer.outputEncoding = THREE.sRGBEncoding should make the trick to correct the overall gamma of the whole canvas regardless to what shader I’m using.

However, it’s turn out didn’t work.
Am I misunderstanding how the renderer.outputEncoding works?

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Some visualize samples here:

1. Using my own skybox shader with THREE.sRGBEncoding:
   

   

2. Using official RGBELoader example without THREE.sRGBEncoding:
   

   

3. Using official RGBELoader example with THREE.sRGBEncoding:
   

   

As you can see first and second have the same gamma shade.
There is no tone mapping involved in any samples.

[benzsuankularb]

I think I encountered the same issue like this one.

sRGB encoding as a postprocess pass

I found out that setting renderer.outputEncoding = THREE.sRGBEncoding doesn’t work when using postprocessing #18451. I’ve been told I need to do the encoding as a postprocess pass but I’m not sure how to do that. Can somebody point me in the right direction or give me some sample code I can use for reference?

So renderer.outputEncoding doesn’t work with post-process…
In my case, I didn’t use Three.js’s post-process but my own full-screen fragment shader.

It’s worked now by manually applying LinearTosRGB after every process.