This may be more of an engineering question but i’m looking to read a texture’s color values in a blueprint. I only need to read it once and was hoping it would be as simple as it is in materials, but i can’t seem to find anything in the forums on working with textures in blueprints.
Assuming I could provide some sort of “uvs” to determine the point i want to look at, is this sort of thing possible in blueprints? Or would i need to dig into C++ to add this kind of thing in?
Id also like to know 
No, I’ve tried it. You would have to convert FTexture2D to FTexture2DMipMap to read it, but it’s not exposed to BP.
I would like to know how I could enable in blueprint, so that I can use in a blueprint only project. I want to be able to read texture in blueprint, so that blueprint can assign a material to a static mesh object according to the values of the texture pixels. Each pixel would represent data on a map, such as temperature, humidity, precipitation
ect. and then assign materials based on the climate created by the values read from the texture. I can then also pass that to a Procedural Content Graph, to spawn rocks and fawna.
Can a plugin do this if I make my own plugin?
A C++ project would be required to write a function in C++ to expose t oblueprints, and then I would not be able to change the project back to a blueprint only project correct (from my experience)?
So if a plugin would work, I am thinking this may be the only solution?
Other than, convincing epic UE5 devs a convincing enough argument to add it to native blueprint?
Sounds like you want Landscape Material Layers and Landscape Material Sampling using PCG
You would need to dig into c++ to do that, there are a few stackexchange questions about how to do approach it 
Thanks for the resources, checking it out, this is beyond me at this current moment 
Maybe at some point I can pay someone to create a plugin when it comes time in the project. This helps alot thank you!
@blindminds The second answer was more for the original post, while the one above (this one) is more relevant to you and doesn’t require C++ or anything, you can do it with little-to-no programming knowledge 
You don’t need any plugin or anything, all the functionality you’re describing is already in the engine 
I wouldn’t mind just reading the height from my RVT that powers the virtual heightmesh. Instead of a line-trace against the underlying landscape, I could exactingly place meshes ON the heightfield-mesh, or better, better-place my characters foot for IK…
I guess so, but not really? I mean, I get that I could create a landscape material using the informational textures, but that’s not exactly what I was hoping for. I want to read those textures to drive parameters in the materials and PCG graphs. Would I need to set the landscape material to the information material, spawn everything, then change the landscape material back? This seems like a clumsy method? Have two landscapes? One for specifically getting location information?
I might have misunderstood what you were looking for.
My understanding was that you were looking to spawn different types of meshes/material based on what’s painted on the landscape; basically this.
This video also shows the reverse process, i.e sampling a custom texture (not the landscape itself) and use it inside the world.
My understanding is either/or/and would work for your needs
Thank you for he links, the second video is (i think) exactly what I was looking for. Will be digging into it soon!