• Maxon Cinema 4D

  Plastic Bottle issue

  Posted by Phillip Popeek on December 16, 2019 at 9:30 pm

  hey guys,

  i’m having a problem with some dark spot on the top of a sprite bottle. I suck at modeling so this might be a simple issue. The bottle has thickness.

  Removing the liquid seems to help reduce the black area at the top. Fake shadows are checked.

  I am using a 1.21 IOR for the bottle, as it seemed to give best results. Droping IOR to 1 obiously removes the black spot.

  Octane version: V4.05-R7
  C4D version: R18

  1. The model: https://www.turbosquid.com/3d-models/wet-sprite-bottle-3d-model-1309349

  2. Renders are attached.

  3. Octane settings tab is also attached

  4. Scene file attached.

  could not upload to this thread so i used dropbox : https://www.dropbox.com/sh/y242lbp11udie0h/AADEQKClQHPMpnwW6YrmJ7-2a?dl=0

  —-
  Does anyone know how to fix this?

  Would be much appreciated.

  thank You

  Steve Bentley replied 6 years, 8 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Steve Bentley

  December 17, 2019 at 8:44 pm

  I think you are seeing the inside of the dark cap there refracted through the bottle shoulder and liquid. You can either map a lighter texture on the inside of the cap, or put a light in there that is excluded to shine on the cap only (or both: lighter texture and light) or you can put one of those security protective seals in there on the top lip of the bottle and make it white or green (even maybe luminous) but make it invisible to camera and only show in reflections and refraction.

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