How to 'heighblend' two different fully triplanar displaced worldDisplacment

Millionviews · October 8, 2020, 6:52pm

I will pull a mask out of the difference from the max node and what happens before. There are a few ways to do a heightblend. It is worth noting that I am a bit away from the ‘normal and casual’ way to blend layers together. I am not too far away from the end result, just looking for the math to nail it 100%. See image below for how my cliff stuff actually does look. I think the way I perform the blend does show up the nice organic exposed cliffs in a natural way. No painting of any landscape layer has been done. Cliff textures at different sizes and displaces are added. Gaps and strokes are filled with sand.

presto423:

[ATTACH=JSON]{“data-align”:“center”,“data-size”:“custom”,“data-tempid”:“temp_204381_1602042639174_816”,“height”:“622”,“title”:“image_204361_a.jpg”,“width”:“1000”}[/ATTACH]

https://forums.unrealengine.com/core/image/gif;base64

What’s that part doing, with reference to the video? It seems like it might be a problem for the cliffs sticking out when pushing the sand in (or is it the sand is sticking out when pushing the cliffs in?). What I’m getting at is the operation I highlighted is taking XY, masking the X channel, and then making a float3 vector that’s multiplied by the Displace float3 of the triplanar cliff 1. It seems it removes the X vector of the whole float3, causing it to constrain the change (in video) along the XY axis. It would be expected based on the WorldAlignedTexture node to get constrained based on the XY world coordinates. Yet, in effect, it appears the shelving that’s occurring is somehow from the XY > Mask X > MakeFloat3.

Did you post an image? It shows blank.

Anyways, appreciate the feedback, see this image of my 99% solution to have a better understanding. I am aware that I a bit offroad using my method, but I like to believe that my current approach is promising. (and less timeconsuming to start painting and tweaking 20KM2 of landscape)