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Diamonds look dull ​

Correct diamonds that look white, flat or without sparkle in Playground and in BatchX renders.

Symptom ​

  • The diamonds look white, flat or plain.
  • The stones have no sparkle or fire.
  • A stone is fully white from some camera angles.

Cause ​

The most common cause is the environment map for the gems. A gem uses its own environment map, separate from the metal. That map drives the sparkle. If there is no gem map, the stone reflects nothing.

A second cause is the model. Gems need face normals, and each unique gem shape needs its own layer.

Fix ​

Step 1 of 8
  1. In the Scene tab, open the Background / Environment section. Make sure that an environment map is loaded.
  2. In the same section, check the Gem Env setting. If the value is None, select a gem environment map.
  3. Try a different gem map from the Gem Environments tab in the left panel.
  4. Select the stone. In the diamond material, adjust Env Rotation Offset until the stone shows detail.
  5. For some cuts, increase Ray Bounces to get a more realistic result.
  6. In Post Processing, adjust Bloom. Bloom adds the glow of the sparkle.
  7. In your 3D software, use face normals for the gems.
  8. Put each unique shape, for example round, pear or marquise, on its own layer.

BatchX renders

BatchX uses the scene file from Playground. Correct the diamonds in Playground first. Then export the .vjson file again.

If the problem continues ​

Contact support. Include the model file and a screenshot of the stones.