Image sequence in imageFile not rendering with husk, but in mplay

V-Ray V-Ray for Houdini Solaris/USD
1

Hi,
I am having a simple scene where I have a plane with an image sequence. The imageFile hast the following notation: $JOB/tex/bg_plate/bg_plate.$F3.exr
(the file imageFile node gets a warning flag saying: Warning Cannot have channels which depend on time.)
Everything works as expected, when I render to mplay, the imageFile updates to the correct frame.
But if I write an USD File and batchrender only the same frame of the sequence is rendered. The $F3 seems to be ignored.
The warning comes only when the imageFile node is created and disapears after that …
Thx in advance.
(The attache hip file does not contain an image sequence)

Screenshot 2023-01-30 104141.png
Screenshot 2023-01-30 104141.png1339Ă—1024 144 KB

imageSequence_test_v01.zip (69.7 KB)

2

> The warning comes only when the imageFile node is created and disapears after that.

Yes, this warning is a standard Houdini warning and was there for years (and not only for V-Ray nodes).

> The $F3 seems to be ignored.

It’s not ignored - I’m pretty sure Solaris expanded it into value while translating into USD (which is the correct behavior), that’s why it’s no longer animated.
Use V-Ray tag instead of expression (like <frame03>).
​

3

Hm, I tried
$JOB/tex/bg_plate/bg_plate.<frame03>.exr
$JOB/tex/bg_plate/bg_plate.<frameNum>.exr

both do not work for me (even im mplay).

I found a workaround for me by outputting an USD file for every frame. I will try it out on my bigger scene …

Cheers Christian

4

Hi,

I am currently stumped on how to get texture image sequences to render with husk.

I have tried $F4 and <frame04>
Nothing seems to work. I tried activating the hidden sequence options from another thread but that did nothing also.

Can someone urgently help me here?

Here is the content of my current USD for the texture

image.png
image.png873Ă—466 22.3 KB
​

vray_adv_60021_houdini19.5.534_9973315_22377

5

If you are using “Override Frame Number” then exporting to multiple usd files is the only option for now (or try disabling “Render All Frames With a Single Process” if enabled).
Without “Override Frame Number” enabled it should work for any cases.

6

I am not using override frame number.
I can’t get it to work no matter what I try.
If you could show an example that would be great.

7

> If you could show an example that would be great.

Sure, here is an example, works for me for viewport and husk (and non-solaris; textures not included).
vfh_solaris_texture_file_frame_tag.zip (77.8 KB)

8

Thanks for the example. I can’t seem to get it to work either.

When I look in the scene graph, I see that it can’t resolve the input file.
What am I doing wrong?

image.png
image.png1079Ă—155 19.9 KB
​

9

> What am I doing wrong?

May be try more recent build?

> I see that it can’t resolve the input file.

Well, yes, it’ll be resolved render-time only.