I have a building in my project, which walls are rotated at a 22.5 degree angle. If I use world alignment, the projected textures on the walls are distorted. (As I expected)
What I actually want is the world alignment to be “object aligned”. I know there is a node called “LocalAlignedTexture”, but that node relies on the model UVs, which I don’t have.
(And I don’t want to have three additional uv channels for the local XY and Z axis…)
To be clear, I don’t want to rotate the texture itself. I would like to rotate the projection axis.
By default the texture is projected from the X / Y and Z axis. But I would like to project from an angle off the Z axis. (Like rotate the entire object space, to align with the xyz axis?)
The “WorldAlignedTexture” node has an input for “WorldSpaceNormals” which I assume is what I’m looking for. But so far I was not able to figure out, how I have to modify the object normals to appear rotated, the way they need to be. (Nah, forget about that. I think that parameter just modiefies the directionality of the surface, not the direction of the projection…)
Additionally, I also need to “rotate” the “WorldAlignedNormal” projection, which I assume will be even harder to achieve…
Well if somebody could help me figure that out, that would be awesome.
Thanks for reading.
If you look in the node, you can see the same thing as in many youtube tuuts ( before they had this node ), which shows you how to do this for one axis, and the node blends 3.
I’m assuming you can make the axis a parameter, because it is just a vector.
However, you’re right, the normals is a mare. And it’s a lot easier to use the pre made node for that. I don’t know ( off the top of my head ), if any of the normal mapping nodes give you a parameter for the project axis.
Obviously my math knowledge is insuffiecient in that regard.
I assume the “gree area” is where the “WorldAlignedTexture” node defines the X and Z axis?
By masking out the Red channel of the vertex normal for the front projection and masking out the Blue channel for the top projection?
The first lerp blends between the X and Y channel and the second lerp blends between XY and Z.
Which means, I have to rotate the incoming vertex normals.
My first guess was to use the “RotateVector” node and rotate the vertex normals to align with the X, Y and Z Axis but I obviously have no idea, how to use that node correctly.
Did you ever get to the bottom of this? I have a similar setup as you with lots of models that have no UV information, but i want to use a tri-planar mapping (world aligned mapping), but have its projection aligned to the objects local pivot.
Ive followed some tutorials but none really seemed to give me what i was looking for… I tried plugging Object Local Pivot node into the WorldPosition input on WorldAlignedTexture but no joy…
