Wrong uvw_matrix data when importing Arnold Shader in Houdini

[osukas]

Hello, we are importing some shaders .ass in Houdini

The standard surface has an IMAGE conected through a UV_TRANSFORM to move the texture
to move it we use the UVW_MATRIX at the bottom of the Uv_transform node

 uvw_matrix 
 0.5 0 0 0
 0 0.5 0 0
 0 0 1 0
 0 0.09 0 1

The shader was made in 3dsmax with Arnold, when we export it we checked the .ass file in "text editor" and the uvw_matrix has the right numbers.

But when imported to Houdini my shader looks wrong, we saw the uv_transform and got this:

 if we manually change the numbers the material looks good, for testing we exported this shader .ass and then reimported to Houdini. The reimport has the wrong uvw matrix again, we checked the .ass file in text editor and the writting on the file is right

uv_transform
{
 name /mat/PALM_tree_leaf_1/Map__70
 passthrough /mat/PALM_tree_leaf_1/Map__70_image
 uvcoords 0 0 0
 coverage 0.5 0.5
 scale_frame 1 1
 translate_frame 0 0
 pivot_frame 0.5 0.5
 wrap_frame_u "mirror"
 wrap_frame_v "mirror"
 wrap_frame_color 0 0 0 1
 repeat 1 1
 offset 0 0
 pivot 0.5 0.5
 noise 0 0
 wset "w"
 uvw_matrix 
 0.5 0 0 0
 0 0.5 0 0
 0 0 1 0
 0 0.09 0 1
}

remported the Houdini ass to Max and i get the right numbers

is this a bug? or there is another way to import this data?

[Stephen.Blair]

It's a bug.
Maybe you could use a Float to Matrix node, plugged into the uvw matrix? And export that shader tree.

[osukas]

Hello Stephen, thanks, with the Float to Matrix node is working when imported in Houdini

I need to try to make a maxscript that I can read the data from the uvw matrix and automatically pass it through a Float to Matrix node, I have like 50 images that i need to manually check