RefractionTexture affected by imageprocessing in DefaultRenderingPipeline

Questions
1

Hello,

I have created a refractive but very transparent PBRMaterial, which is barely visible (mainly only by the distortion caused by the refraction, i.e. something glass-like).
However when I add the DefaultRenderingPipeline to the scene, the refraction becomes significantly darker. If I would guess, it seems that the DefaultRenderingPipeline is also applied to the content of the RefractionTexture.

I have modified the Alpha fresnel Playground example in order to demonstrate that issue:
Alpha fresnel | Babylon.js Playground (babylonjs.com)

line 65 holds a boolean value for enabling/disabling the DefaultRenderingPipeline. If it is set to false, the refractive disc is barely distinguishable from the background - which is what I want to achieve (btw. setting metallic to 0 makes the disc completely disappear when the DefaultRenderingPipeline is off).

Thanks for any advice
Helmut

2

As you are using image processing in post process, the actual texture is rendered in linear space so you can flag it as such: refractionTexture.gammaSpace = false;https://playground.babylonjs.com/#22KZUW#527

2 Likes
3

Hello sebavan,

That solves the issue!

Thanks
Helmut