Jump to content
anicg

export greyscale heightfield terrain? I get incomplete colour images

Recommended Posts

When I use heightfield output I get colour images. Heightfield images are greyscale values (white high, black low, greys in between). But why do I get coloured images when I export a png.
How do I get the full terrain, because for now I only parts (height, sediment…) spread in colour channels, where is full the terrain in greyscale? like the whole thing?
 

houdini export issue exr.PNG

houdini terrain png export in colour.PNG

houdini terrain export issue.PNG

Share this post


Link to post
Share on other sites

Hey,

I believe it works best to save a different image for each plane. I would set height for red, green, and blue. I would set format to RGB and ignore alpha. I would also set it to auto remap.

hope this helps--

Share this post


Link to post
Share on other sites

Try settings like these.

Untitled-1.jpg

test_hf.jpg

  • Like 1

Share this post


Link to post
Share on other sites
15 minutes ago, ejr32123 said:

Hey,

I believe it works best to save a different image for each plane. I would set height for red, green, and blue. I would set format to RGB and ignore alpha. I would also set it to auto remap.

hope this helps--

Does Houdini, yes or no, export the full terrain? I think this maybe the paramount difference between Houdini and [WM, Vue, Terragen...]

Because I have seen the sidefx video on H17 terrains in detail, and I've seen that story of red blue green... and he hasn't given me the impression Houdini can export an image of the full terrain.

So is it only in pieces? and how do I bring these pieces together? Why wouldn't Houdini have the full terrain exported?

Share this post


Link to post
Share on other sites

the heightfield plane will provide a map to displace your terrain as it looks in houdini. I use the other maps-debris, flow, etc for shading. For instance, I might want grass or snow in the debris areas. 

Share this post


Link to post
Share on other sites
23 minutes ago, Atom said:

Try settings like these.

Untitled-1.jpg

test_hf.jpg

 

Ok these are the parameters. IT WORKS. MANY THANKS to both of you.

Share this post


Link to post
Share on other sites

It is solved, thanks again to both of you.

I just would like to know what do people do with the exr's? 

I use the obj for clarisse, the png/tif for Vue/Terragen, but the colourful exr, what use does it have? am I missing something?

5c08ed34a3ccc_houdiniexportissueexr.thumb.PNG.d5486d0cb0bd05472e40ef3808f56102.PNG

Edited by anicg

Share this post


Link to post
Share on other sites

You can save out different planes to different channels, RGBA but I don't believe you would actually use all the channels at once. For instance, if you have height saved to red channel, use the red channel for height. If you have debris mapped to blue channel, use that for adding shading to debris. I don't do this, typically. I just export a different image for each plane (as opposed to saving in different channels). Sometimes I have more planes than would fit in RGBA anyway. Slump, mesa,height,water,flow,mask, etc.

Edited by ejr32123

Share this post


Link to post
Share on other sites

Thanks, i meant the colour image. Heightfields are greyscale, why colour?

Edited by anicg

Share this post


Link to post
Share on other sites
4 minutes ago, anicg said:

Thanks, i meant the colour image. Heightfields are greyscale, why colour?

Its colored because you are viewing RGB together. you can see the individual channels are greyscale. If you view only the red channel it will be greyscale

Edited by ejr32123

Share this post


Link to post
Share on other sites

as I said, the photo you are looking at is all of them combined

Edited by ejr32123

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×