[richardfollett]

This is an IOR platinum with weight map applied, seem to get lines on the edge of the apple logo, edge of the HDR lighting area??

[Mihai]

What image format are you using for the weightmaps? If you can post them it would help.

[richardfollett]

Hi Mihai,
it is one image that has been inverted. A JPG which is 10000 x 3000 pixels
at 300 ppi, does that help or explain why? Should it be PNG?

Thanks

Rich

[Mihai]

Try resaving it so it's 72dpi (just change the dpi setting, the resolution can stay the same).