Virtual Textures can be assigned to Texture Sample Parameters that are not configured for Virtual Textures, if that parameter is inside of a Material Layer.
Also found in Release-5.4, CL 32426910
1. Download the attached test project and open
2. Observe the two Material Instances "/Game/MI_Texture_NonVT" and "/Game/MI_Texture_VT". They are Identical besides the former using a Non-Virtual texture ("/Game/T_NonVirtual") and the latter using a Virtual texture ("/Game/T_Virtual").
3. Observe that in the editor viewport, the two spheres both have a texture. Each sphere is assigned the respective material.
4. Observe that the Material Layer "/Game/ML_BasecolorTexture" samples a regular texture, not a virtual texture.
5. Play "Standalone Game". Observe that the sphere with the material ""/Game/MI_Texture_VT" is now black.
6. Observe the lack of any log message or error related to assigning a Virtual Texture to a non-Virtual Texture Sample Parameter.
Status update on UE-21075 and UE-20622?
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-210564 in the post.
2 |
Component | UE - Rendering Architecture |
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Affects Versions | 5.3, 5.4, 5.3.1, 5.3.2 |
Created | Mar 25, 2024 |
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Updated | Mar 29, 2024 |