Is it possible to control, to delete for example, scattered points with texture?
Like here, where points are where texture is white and deleted where there are not. http://screencast.com/t/ea4IAWaXmkdk [screencast.com]

I did try PointMap but it mess transforms of emitter geometry.
Also tried with tex expression and Point SOP but than I need really dense geometry.

You can use an attribute as scatter density on the scatter node. You can create that attribute with a texture lookup in a VOPSOP.

Unfortunately that is bit over my present Houdini knowledge.

I manage to get decent results with Point SOP and tex expression, but texture that controls scatter and diffuse one do not match.

Here is an example i whipped together with some Grants.

Thanks a lot for help, I will check that!.

I manage to fix issue with textures, I just had to use $MAPU and $MAPV variables instead default ones for tex parameters. And it works great.