Jump to content

Cannot see projection in scene view


Damo

Recommended Posts

I've never been able to see textures in the view port. I've always had to use render region or a preview render to do this.

I've lived with it because I understand 'that's how it is'. 

 

Today I'm watching a video of a guy who projects a colour map onto geometry using a constant and uxtexture to project from the camera. 

 

In his viewport the texture is shown on the geometry. I follow the same steps and I cannot see the texture on the geometry until I render. 

 

There are no settings I can find under which to switch this on, what am I missing?

 

(He's using Houdini 12, I'm on 14)

Link to comment
Share on other sites

You may want to list your hardware specs in your signature. It could be your hardware is not supported. For instance, I can't see textures on my MacMini because it is no longer supported as of H14. Basically Intel graphics chips are not gonna work. Do you have an nVidia GPU card with 2GB of ram, or more?

Link to comment
Share on other sites

Hi,

 

it's possible to view the textures if you use the mantra surface shader and press the "display materials on objects" button (screenshot).

Does that solve your problem?

If not, post a test scene of your setup.

 

 

post-12584-0-72454700-1439471039_thumb.j

Link to comment
Share on other sites

Hi, 

 

I do have this option ticked. I've attached a sample file where I have tried both a simple colour map and the projection, both fail for me to show in the view port as pictured below. 

 

Projection, fails to show in viewport

post-3473-0-14430000-1439588109_thumb.pn

 

A basic colour map fails to show in viewport

post-3473-0-17300400-1439588289_thumb.pn

exampleProjection.zip

Edited by Damo
Link to comment
Share on other sites

Just re-reading what you said. 

 

"if you use the mantra surface shader"

 

So from the material palette I dragged a Mantra Surface over and assigned that to the grid in my post above and I can see this. 

 

post-3473-0-90797800-1439588615_thumb.pn

 

I'm creating a vop materials. Is it not possible to view these in the view port? Or do I need to add in an operator to enable viewing the viewport?

Link to comment
Share on other sites

Ah ok.

One way to get this to work is to copy the Open GL parameters from the mantra surface node to your vopmaterial (see attached file).

Or the cleaner way would be to drag and drop them from the Render Properties (Screenshot).

Hope that's what you were looking for :-)

 

 

projectionEdit.hip

post-12584-0-72523800-1439590398_thumb.j

Edited by pax
Link to comment
Share on other sites

humm, closer maybe. But this doesn't take the output of the vop material and display it on the grid. it references the texture within the material rather than the final output. 

 

For example, If I remove the colour map and add in just a ramp with noise, this won't display. (sorry, maybe I should have been clearer about my final goal)

 

What I'd really like to do is reference `chs("surface_output/Cf")`

 

Is this possible?

 

Edit: 

 

humm, I guess I have my answer if this is still the case: https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&p=102658

Edited by Damo
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...