Hey guys i have some shading problem please can you tell me how to fix that?
i dunno why i have these line
Try adjusting the index of refraction.
The IOR of glass is between 1.5 - 1.7. The bottle mostly likely has been originally photographed in a light box. Also try moving your lighting and or HDRI so that the light is evenly distributed. The image of the bottle shows the light source coming from the top and then falling symmetrically over the bottle. If you look at the chrome cap you can see a thick black line . This is where the camera would be placed when taking a photo in a light box.
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