Description

Textures at an index, other than 0, cannot be sampled from a Virtual Texture Collection in a material. When using the Texture Collection and Texture Object From Collection material nodes, with a Virtual Texture Collection, the CollectionIndex parameter on the Texture Object From Collection node fails to select any texture other than the 0th texture in the texture collection.

Steps to Reproduce
  • Create a Virtual Texture Collection Data Asset.
  • Add two distinct textures to the collection.
  • Create a material with the following node chain:
    Texture Collection -> Texture Object From Collection -> Texture Sample -> Emissive Color
  • Click on the Texture Collection node and assign the Virtual Texture Collection you made above to it
  • On the Texture Object From Collection node, set the CollectionIndex input to 1
  • Observe that the sampled texture remains the 0th texture in the collection, and does not switch to the texture at index 1.

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Unresolved
ComponentUE - Graphics Features
Affects Versions5.75.85.7.1
CreatedOct 30, 2025
UpdatedOct 30, 2025
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