Procedural maps on unreal engine

[anonymous_user_e822a6eb]

Hi

is there a way to texturize with Procedural maps in the unreal engine?

what about v-ray for unreal?
is there a way to texturize with procedural maps in the unreal as with rhino?

thanks

[anonymous_user_e822a6eb]

@Bits360

Your question makes no sense. Define texturize and procedural map.

texturing with procedural maps
diffuse: procedural checker
bump: procedural noise

https://static.chaosgroup.com/images/assets/000/002/318/articles_2_columns/vray-sketchup-textures.jpg?1490203782

[anonymous_user_e822a6eb]

@AnotherUser23245

The only real way to do that is either bake it out as a texture or make some relatively complex materials.

in case of sending from v-ray 5 from rhinoceros to v-ray to unreal:

if I import a scene, through the v-ray scene file, which has procedural maps in the materials, does it import procedural maps?
or do i have to bake?

[midgunner66]

You can use coordinate, vector, noise, and vector noise expressions to create procedural textures.
You can also use procedural functions to do things like generating a normal map from a black and white height map.
According to the documentation:

The Procedural functions provide a quick way to make simple procedurally generated textures and masks. This saves memory over having to use imported textures.

[MostHost_LA]

Given the cost of all of those functions in a materials, you are probably better off manually messing with the UV of a small texture to generate a “random” effect.

There are billions of ways to do this.
from tiling the same texture rotated differently to having different sizes overlap.

And I do think that instruction count wise all those ways would end up being Less than a noise node.

At the same time the noise node does have settings, so it’s isn’t a guarantee.

[midgunner66]

Under vector noise, it says:

Due to the run-time expense of these functions, it is recommended that once a look is developed with them, all or part of the computation be baked into a Texture using the Draw Material to Render Target Blueprint feature introduced in Unreal Engine 4.13 and later. These Material graph Expressions allow procedural looks to be developed in the engine on final assets, providing an alternative to creating procedurally generated Textures with an external tool to apply to assets in UE4.

However, for Cellnoise and Perlin 3D noise, it says:

This Vector Noise function is extremely cheap to compute, so it is not necessary to bake it into a Texture for performance.

In most cases, though, you’re better off just using a texture. You really only need procedural textures whenever something will be changing in real-time, like snow or mud.