A specific object comes out blurry with "on-demand mip-mapped" texture mode

[Alex_M]

I have an exterior scene where the curb comes out blurry with "on-deman mip-mapped" texture mode. Every other object in the scene seems to render perfectly fine and sharp except for the curb. If I use "full-size" or "compressed" texture mode, this doesn't happen. Is this a bug or some sort of misconfiguration of my material or scene? Please check the screenshots below. This is a crop from a 4400 x 2750 px image.

[hermit.crab]

Hm. I have a feeling this is happening because the curb is an individual object stretched a big distance along the scene, which possibly causes GPU to use mipmapping on it. Could you simplify the scene and attach (or send) it?

[Alex_M]

Sure, see attached.

[hermit.crab]

Thanks for the provided scene. I managed to debug it and found out there's a problem when using VRayTriplanar projected textures and On-demand mipmapping. There are visible artifacts with lower size Triplanar values and blurriness with higher values. I've logged the issue (internal bug-tracker id: VGPU-6156) for developer investigation. For now, you could either render with Full-size textures or use another method of projecting the textures and stick to mipmapping.

[Alex_M]

Thanks! I'll use full-size textures, I think they fit fine in VRAM for this scene.