I have to do a tool like scatter but with certain features/requirements.

1. I need clone or instance a mesh to point position to other (I can use Houdini CopyOp).

2. Instances have to get the color from a bitmap pixel near (like particle influence style) to its point position, and set color to wire mesh or/and diffuse on material.

3. Each instance should have a control to rotate 90 from its previous instance (in rows for example)

4. I will need export instances mesh with its colour data (from wire or mat) to load in 3DSMax then assign it to diffuse channel of a VRayMat.

I had been start to doing in Softimage with ICE, but I don't know how to do some of my needs. I start with a particle pointcloud to get color from bitmap, and the export to 3dsMax time, I have to create mesh from pointcloud, then I lost the data color. Also I don't know how to do control to rotate instances.

Someone could give a little bit of help to do this tool in Houdini?

Thanks!

There are a lot of nice example files on this website.
http://www.tokeru.com/cgwiki/?title=Houdini#Instance_with_rotation [tokeru.com]

Several of your requests are demonstrated with example files.

Nice page Enivob! I will try some examples to see I could custom for me requirements.

Thank you!

Well, many examples of this page crash Houdini 15.0.416 (apprentice license), like Texture_attributes.hipnc, or Effector.hipnc.

Maybe due Houdini version?

To start Houdini in Manual update mode, I had seen Houdini crash when compute vop operators. I don't need Vop_warp op, but Vop_tex_to_scale is need to get color from texture I think.

Someone have a idea about this problem?
Graphic card drivers? Configuration for GL viewport?

HOUDINI 15.0.416 (apprentice license)

Windows 8.1

Intel i6700
ASUS MB Maximus VIII Hero
RAM 32GB DDR4 (Kingston Savage 4X8GB)
SSD Samsung 2X 850PRO
Monitor DELL U2412M
GeForce GTX 970
OpenGL Version: 4.5.0 NVIDIA 355.82
4096MB

With these preferences of my computer I was able to open the Example files Effector.hipnc and Texture_attributes.hipnc.

Yeah, working for me too on a 2012 macbook pro and an asus g73 laptop. Both the macbook and asus have nvidia cards of some description.

Sorry the files aren't working for you… :?

My computer configuration is this:

HOUDINI 15.0.459 (apprentice license)

Windows 7 Professional 64-bit
Intel Xeon E3-1220 v3
ASUS MB P9D WS
RAM 32GB DDR3 (Samsung 4X8GB)
SSD Samsung 840
Monitor EIZO CG303W
NVIDIA Quadro K2200 4GB GDDR5 (NVIDIA Driver Version: 353.62)

I can't find OpenGL driver in my system. Perhaps be this the problem.

1.Run Houdini
2.Open Help Menu and choose About Houdini
3.LMB on Show Details, open it;
and see OpenGL Version: X.X.X NVIDIA XXX.XX

Maybe you should upgrade your driver 353.62 to higher for Quadro K2200.

OpenGL Version: 4.5.0 NVIDIA 353.62

I have tried Nvidia driver 364.72 version, and Houdini crash also in this scene, Texture_attributes.hipnc, in the same situation.

Other thing that happen with this scene, is if I launch a render, mantra.exe crash at the few seconds. Even if I create a cam or another Mantra out.

It seems strange. Can't find the problem origin