Multi-Texture tutorial and samples

[neonZorglub]

---- Multi-Texture usage ----
(from plugin version 2021.1.4 - 12.16)

Octane Multi-Texture allows to apply randomly multiple textures to an object.

1) Add images to the image list.
Use the Add images button, and select 1 or several image files
2) Apply the material to some objects
3) Use the 'Refresh objects' button in the Reference Objects rollout.
This will check the geometry settings and provide a 'Fix issues' button to configure the Octane Geometry modifier correctly automatically.

You can choose one of the 2 ways to differenciate faces for the random texture assignment:
-Using the Material IDs.
-Using the Polygon connections.
This creates internal IDs for each group of connected polygons.

* Seed: Base for random numbers generation.

* Use instance ID
This allows to have different random textures on several object's instances.
If disabled, all instances will have the same randomness.


-Removing images from the list:
Select one of several images, and use the context menu (right click) and choose 'Remove image(s)'
In this menu, the 'Explore image folder' opens Windows Explorer at the folder location.

The Multi-Texture is a wrapper using Octane Image Tile, so there are the same output settings available (power, color space, etc..)

The object list provide a context menu for selected objects, and allow to change the geometry assignment type (Material ID / Polygon connection)

Notes:
-When using copies of objects instead of instances, the instance IDs will the same by default.
You can assign unique Instance IDs globally for all reference objects, so they will have a different randomness (object list context menu).


Note: Drag and drop of external image files is partially supported. You currently need to drop files on the right of the 'Add images' button, not in the list itself.
This will be fixed in future releases.

Samples :

Multi-Texture_samples.zip

(575.66 KiB) Downloaded 246 times

Multi-Texture_sample1_MtlID.max
using the default Box (witch has 6 different material IDs), each side use a different random texture.

Note that the teapot has both different material IDs, and separate parts. So you can use both methods to differenciate faces.

Multi-Texture_sample2_connectedPolys.max
The first object (tiles1_connectedTri) do not have material IDs, and faces are grouped by their connection.
The second object (tiles2_mtlIDs) has some material ID, so both methods can be used.

[Rik]

But we've been doing this for years with multi material and the material id modifier.
What can this do that's new?

Can you please tell us when support for bercontiles will happen?

[neonZorglub]

But we've been doing this for years with multi material and the material id modifier.
What can this do that's new?

Can you please tell us when support for bercontiles will happen?

Hi Rik,
The Octane Multi-Tile main feature is to be applied to a geometry that has distinct parts, like the floor tiles in the second sample of previous post, without the need to setup material IDs for each part..
The option to use material ID is just an additional feature, for some geometries where the connected polygons don't match what you want.

For Bercon tile support, I suppose you are talking about this ? https://github.com/Bercon/BerconMaps

For use of the Bercon tile alone, the option to Bake it works well with octane, as in the sample berconTile02_oct.max:

BerconTileSamples.zip

(841.8 KiB) Downloaded 214 times

(Render settings: tools tab, Material converter: Enable bake other unsupported: On)

But I suppose you want to use Bercon tile with MultiTexture from CG Source ?

like the sample berconTile03_multiTile_Scanline.max:

Rendered with Scanline Renderer:

This currently can not be baked (I think because of the use of 2 uv channels).


Could you confirm that it's what you want to use , or send me a sample that works with Scanline Renderer, and not with Octane ?

I can check if it can be possible to use octane Multi-Texture for this, or to make the baking work..

Thanks

[HHbomb]

HI,
how do the images are loaded ? I thought it is alphabetical... but no.
Order is very important : when you load diffuse images and opacity ones for exemple.
I succeed one time, but second test images were messed up.
Any tip ? Thanks

[Rik]

But we've been doing this for years with multi material and the material id modifier.
What can this do that's new?

Can you please tell us when support for bercontiles will happen?

Hi Rik,
The Octane Multi-Tile main feature is to be applied to a geometry that has distinct parts, like the floor tiles in the second sample of previous post, without the need to setup material IDs for each part..
The option to use material ID is just an additional feature, for some geometries where the connected polygons don't match what you want.

For Bercon tile support, I suppose you are talking about this ? https://github.com/Bercon/BerconMaps

For use of the Bercon tile alone, the option to Bake it works well with octane, as in the sample berconTile02_oct.max:

BerconTileSamples.zip

berconTile02_oct.png

(Render settings: tools tab, Material converter: Enable bake other unsupported: On)

But I suppose you want to use Bercon tile with MultiTexture from CG Source ?

like the sample berconTile03_multiTile_Scanline.max:

Rendered with Scanline Renderer:

berconTile03_multiTile_Scanline.jpg

This currently can not be baked (I think because of the use of 2 uv channels).


Could you confirm that it's what you want to use , or send me a sample that works with Scanline Renderer, and not with Octane ?

I can check if it can be possible to use octane Multi-Texture for this, or to make the baking work..

Thanks

Thanks v much - great reply, much appreciated.

'But I suppose you want to use Bercon tile with MultiTexture from CG Source ?'

Yup, exactly that.
Here's a vid on youtube which is exactly what's needed, working with Vray....

https://youtu.be/phhlBboBWxI

If you can get this working in octane that would be perfect.

Cheers

[neonZorglub]

HI,
how do the images are loaded ? I thought it is alphabetical... but no.
Order is very important : when you load diffuse images and opacity ones for exemple.
I succeed one time, but second test images were messed up.
Any tip ? Thanks

Hi HHBomb,
The order is as we see in the list..
When adding multiple images at once, I'm afraid it's a bit up to Windows : could depend of the date / time of images, or some other criteria.. It might be different when dropping images, you could try that..
If your 2 sets still do not match, you currently would have to add images one by one !
Sorry about that! I'll fix this in the next release, sorting the list alphabetically ..
Thanks

[HHbomb]

Thanks NZ. It would be nice to stably sort the images

[samsue]

Hey

How do I apply textures to specific ids?