RuntimeVirtualTextureVolume and RuntimeVirtualTexture Giving only a blank black texture

[Toby95]

I’m trying to use a RuntimeVirtualTexture with my landscape material to blend assets with the terrain.

My problem is the RVT Volume and RVT texture is only giving me a blank black texture as a result.

Both the RVT output and RVT sample node in my landscape material are also both blank. I’ve looked at a few tutorials and setups but cant see where I’ve gone wrong. I’ll attach some images which hopefully may help someone help me out. Plugging the RVT Sample node into the VirtualTextureFeatureSwitch node is also breaking my landscape material and giving me a blank white material???

Any help appreciated greatly! I’ve updated my graphics drivers and done a clean install of UE4 4.24.3

[OscarWilde19]

I had the issue with the black as well but only on MacOS, on Windows no problem

[krz9000]

i have the issue on windows with ue4.25.
my problem is with the RVT sample parameter. even though i put in the correct RVT in the shader-instance, it still samples the “default” rvt that is set from within the shader-material. the icon in the shader-instance showes the correct texture but that is not used for some reason…it still samples the default rvt and that one is black. as soon as i put in the correct rvt as the “default” in he material…it works fine. but this stops me from using the material across different levels

[AzoghMartins]

I have the exact same issue, which kind of screws using RVTs over massive tiled landscapes in World Composition. Let’s hope that 4.26 fixes this on one way or another.

[GODZILLA26]

Hi! You only need to switch on “Enable Virtual Textures” in project settings. By default it disabled.

[krz9000]

i have the setting enabled in 4.25 and its not working as desribed above. version 4.26 seems to work (i only did a quick test, but RTV sample parameter worked with external input on different world composition landscapes

[krz9000]

i have the setting enabled in 4.25 and its not working as desribed above. version 4.26 seems to work (i only did a quick test, but RTV sample parameter worked with external input on different world composition landscapes

[Andy_Seabrook]

I cant speak for 4.25 but just in case anyone is struggling with this, I was also struggling with this using 5.1, for me the problem was that the Runtime Virtual Texture Volume is set by default to 0 scale on the z axis but it needs to cover the depth of your Landscape, for me 50000.