Hi all. As you can see in the image, the uv is good and fine but the texture is having problem. Anyone know what caused to this problem? or is it a bug?

I attached the hip file. Please help me

Try promoting your UV parameter from the Vertex context to the Point context for shading.

Enivob
Try promoting your UV parameter from the Vertex context to the Point context for shading.

Thanks. But i found out the problem source. It is the software(daz studio) that export the uv wrong. The vertex number in every other primitive's uv are flipped. For example for a four sided primitive, the vertex number from clockwise:
before export in daz = vertex 172:0
172:1
172:2
172:3

after expot from daz = vertex 172:3
172:2
172:1
172:0

Is there an easy way to fix this daz mess in houdini?

in theory:
branch out your geo, add reverse sop
then attribcopy vertex uv attrib to your original geo, set both group types to Vertices

tamte
in theory:
branch out your geo, add reverse sop
then attribcopy vertex uv attrib to your original geo, set both group types to Vertices

Tried what what you suggest but the UV remain the same, i think because the reverse sop reverse the vertex in both 3d space and uv space.

Anyway, i re-export alembic from daz studio with different options and its working now.

ruudygh

tamte
in theory:
branch out your geo, add reverse sop
then attribcopy vertex uv attrib to your original geo, set both group types to Vertices

Tried what what you suggest but the UV remain the same, i think because the reverse sop reverse the vertex in both 3d space and uv space.

Anyway, i re-export alembic from daz studio with different options and its working now.

not sure if you tried the same, uv's definitely change, but since it was just a guess based on your description it's not aligning well
after having a look at your scene here is the fixed file, a little vertex shift was necessary as well

tamte

ruudygh

tamte
in theory:
branch out your geo, add reverse sop
then attribcopy vertex uv attrib to your original geo, set both group types to Vertices

Tried what what you suggest but the UV remain the same, i think because the reverse sop reverse the vertex in both 3d space and uv space.

Anyway, i re-export alembic from daz studio with different options and its working now.

not sure if you tried the same, uv's definitely change, but since it was just a guess based on your description it's not aligning well
after having a look at your scene here is the fixed file, a little vertex shift was necessary as well

Thanks. It works now