RVT Blending Not Functional on Nanite Landscapes

[edwardteach42]

Issue Description

Environment: Unreal Engine 5.4+ with TerraPrime plugin
Module: Runtime Virtual Texturing (RVT)
Affected Feature: RVT Blending on Nanite Landscapes

Problem

While Runtime Virtual Texturing (RVT) blending functions correctly on standard objects, it fails to operate on Nanite-enabled landscapes. This issue affects the visual integration of textured materials in Nanite landscapes, where RVT is supposed to provide enhanced detail and texture consistency.

Expected Behavior

RVT blending should uniformly apply across all objects, including Nanite-supported landscapes, ensuring seamless material transitions and consistent visual quality throughout the environment.

Current Behavior

RVT blending is effective on non-Nanite objects but does not affect Nanite landscapes, resulting in a noticeable disparity in texture quality and blending between different parts of the environment.

Steps to Reproduce

1. Enable Nanite on a landscape in Unreal Engine 5.4+.
2. Apply Runtime Virtual Texturing to the landscape and nearby objects.
3. Observe that while the objects display blended textures correctly, the Nanite landscape remains unaffected.

Additional Information

• Screenshots, logs, and further details can be provided upon request.
• The issue has been verified across multiple hardware setups and Unreal Engine configurations.

This inconsistency limits the utility of RVT in projects that leverage Nanite for landscape detailing, which is critical for high-fidelity environments in next-gen game development.

Suggested Next Steps

• Investigation into how RVT interacts with Nanite landscapes.
• Possible interim solutions or patches that could be applied while a permanent fix is developed.

We appreciate your attention to this matter and any guidance or updates you could provide would be extremely helpful.