glitchy lens effects

[robin_lawrie]

im using lens effects to add some "sparkle" to some stars. however ive noticed when using them in comp that there are some visible render errors.

these glitches are also visible in the vfb, the higher the intensity, the more visible.

here is a screengrab of the vfb with lens effects intensity 10 (as im using it) the defects are just visible (some horizontal lines of noise)




screening the effects over a lighter background in photoshop, as i need to, it becomes more visible.

here is the same render, in the vfb, with the exposure artificially boosted to show the issue more clearly.



not very nice.

fix?

[hermit.crab]

It's a known issue (internal bug-tracker id: VMAX-2088 ) affecting low-light scenes. I'll talk to the product manager about it.