Random texture tile index ?

[espr3ss0]

Is there any way when tiling a texture to have random coordinate index ? Unless it doesn’t make much difference to a larger image.

[RyanB]

Look at the material function “plank and tile UVs”. Should be in 4.13. It is the basis for the kinds of procedural textures in this video

https://www.youtube.com/watch?v=HDqAwQQ1f1Q

[espr3ss0]

Looks nice but not would be nice to see how. I had to stay at 4.11.

[RyanB]

You can use the custom node and enter the code:

PseudoRandom(x);

This will randomly jitter the UVs within each UV tile.

If you want to actually blend between the offset tiles, that is a technique called Texture Bombing and there is a node for it if you update to 4.13.

[espr3ss0]

Thanks for the info.

[zeOrb]

@RyanB;603592

You can use the custom node and enter the code:

PseudoRandom(x);

Wow, this PseudoRandom trick is amazing, thank you!
Is there any hidden drawbacks in using this method?

[RyanB]

There may be some faster ones available now like:

float rand = float(Rand3DPCG16(randpos).x) / 0xffff;

This one takes a V3 instead of a V2 but there are some others as well. Check random.usf for more.

[sarchasm]

@RyanB

There may be some faster ones available now like:

float rand = float(Rand3DPCG16(randpos).x) / 0xffff;

This one takes a V3 instead of a V2 but there are some others as well. Check random.usf for more.

This nor
PseudoRandom(x); Work in my custom node. Using 4.21. What gives?

[Macker202]

@sarchasm

This nor
PseudoRandom(x); Work in my custom node. Using 4.21. What gives?

Same. I think I must be doing something wrong. Any help would be much appreciated?

[msum]

Hi Macker202,

To make it work just set the “input name” to “x” or anything else that is in the argument of your PseudoRandom function.