Post process effects messing with the emissive material

Development Rendering
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1

Hi ,

I am having a strange problem. I have a daynight cycle and I am loading new color grading LUT dynamically based on sun’s current elevation. However , I can see that the first time an LUT is loaded in runtime , it messes with the sun material and the sun light flickers , as shown in the below pics

Left - Distorted Sun(happening first time a new LUT loads. In my case , happening every single frame for the first cycle or when the play mode is clicked the first time - if a particular color grading is not loaded yet , and the play mode is turned off , then next time the play mode is clicked , flickering occurs from that instant onward)

Right - Desired result. Happening with post process turned off or from next time onward

51700-grading_flash_1.jpg
51700-grading_flash_1.jpg3024×1268 351 KB

2

Hi sameek4 -

Can you post the Color Look-Up Table that you were using and switching to?

Thank You

Eric Ketchum

3

Yup. Some of them are given in the attached zip folder:

4

Hi sameek4 -

Just want to check, with your LUT Textures, have you gone in and set the COmpression to HDR and the LOD Texture Group to ColorLookUpTable? If not, try that and see if it solves your issue.

Remember you can select multiple assets and right click > Asset Actions > Bulk Edit with Property Matrix and changes all the textures at once.

Let me know -

Eric Ketchum

5

OMG it worked. You are brilliant