BG Random UV Projection node

[bepeg4d]

Hi all,
here is an OSL Projection node to randomise position, rotation and scale of the uvs of scattered objects. It uses the Random Color Texture node to obtain the random values, but you can use any other texture node:

https://vimeo.com/296310449
Hint #1:
Connect the same Random Color Texture node used to drive the OSL Projection, firstly into a Gradient node to batter control the range, and then in the Power pin of the ImageTexture node, to randomly change also the aspect of the texture over clones:

Here is the OSL script:

BGrandomUVproj_osl.zip

(931 Bytes) Downloaded 1172 times

an .orbx example scene:

BGrandomUVproj_orbx.zip

(368.75 KiB) Downloaded 799 times

and a c4doctane example scene:

BGrandomUVproj_c4d.zip

(465 KiB) Downloaded 1032 times

Hint #2:
If you use the following OSL Texture node RandomInstanceColor.osl, provided by Milanm here:

Code: Select all

#include <octane-oslintrin.h>
shader RandomInstanceColor(
      int Seed=0,
      output color c = 0)
{    
      c = noise("cell",_getinstanceid(),Seed);
}

Instead of a Random Color node, the BGRandomUVProjection OSL node works also with non instanced objects too.
In Standalone you need to have a Scatter object connected to each different object:

While in c4doctane you need to add an Octane Object tag, with differet Instance ID numbers, for example selecting all the tags, and entering num+1:

Here is a a Standalone .orbx, and .c4d example scene with both osl scripts working together:

randomuvsonobjects.zip

(2.32 MiB) Downloaded 941 times

Happy GPU Rendering,
ciao Beppe

[FxDesign]

That's fantastic, thank you

[funk]

Thanks Beppe. Very handy!

[J.C]

Wow!. Awesome script. Thanks for sharing Beppe!

[bepeg4d]

Hi,
I have updated the first post with the great hint provided by Milanm here, of using the OSL Texture node RandomInstanceColor.osl, instead of the Octane Random Color node.
Happy GPU Rendering,
ciao Beppe

[pxlntwrk]

thanks bepeg,
that's really cool and useful...

[neilmanisharma]

Can you tell me how it will work in blender? As i tried using OSL texture but it is giving error.

[roy_orengo]

Hi Beppe,

You wrote:
"Instead of a Random Color node, the BGRandomUVProjection OSL node works also with non instanced objects too".
So I could use It without Blocks (I'm using Rhinoceros as modeller)? On different solids?

Thanks,
ciao,
Roy

[mortom_ckm]

Hi I'm green in this stuff - In Octane I mean
There is a way to do this in Octane for Blender? I suppose connect node "OSL Projection" with script to the shader it's not do the trick?

[mortom_ckm]

Hi
There is a way to do this in Blender?