[SOLVED] Grass Poke through

Coryllon

Working on a render and every time I get it "perfect" I notice, hours into the render, the grass is poking right through the feet. Is there any way to keep that from happening? Right now my only work around is to get small bits of grass right up next to the feel and in front of the feet so you don't notice... but there still always the one random blade of grass.

TheKD

A quick fix for it is to finish the poke through render, then do a spot render of the foot area after with the grass turned off, then blend it out in post.

Petercat

Coryllon said:

Working on a render and every time I get it "perfect" I notice, hours into the render, the grass is poking right through the feet. Is there any way to keep that from happening? Right now my only work around is to get small bits of grass right up next to the feel and in front of the feet so you don't notice... but there still always the one random blade of grass.

Before the render, you can use the geometry editor to make that one blade of grass invisible.
I have to do this a lot.

Coryllon

I am using the grassy grounds megapack. How does one do this? I only know how to make it invisible if it's selectable in the scene window.

mwokee

TheKD said:

A quick fix for it is to finish the poke through render, then do a spot render of the foot area after with the grass turned off, then blend it out in post.

This is a good and simple idea. But it's a 10 second fix in Photoshop if the OP is literally having a single blade of grass poking through. If they can't do that then I doubt if they can do what you suggest which is great for more complicated issues. You might want to try using Gimp which is freeware used by those who do not want to invest in Photoshop. I have never used Gimp since I am a fan of Photoshop but if you install Gimp, use whatever tool is available for spot healing.

Coryllon

I use gimp all the time it's more than one blade, though. It's 10 to 30 of them if I want uniform glass length and I will cut and paste if I have to. But I am trying fix the problem if I can, not just cover it up.

Petercat

Coryllon said:

I am using the grassy grounds megapack. How does one do this? I only know how to make it invisible if it's selectable in the scene window.

I just tried it with the megapack, and it works great.

Select the grass group.
Move your viewpoint close enough to see individual blades.
Alt+Shift+G to select Geometry editor.
Holding Ctrl, right-click once on each offending blade of grass.
Click  Ctrl+Shift++ (Ctrl plus Shift plus +) until visible parts of blades are highlighted.
Right click on scene, select Geometry Visibility, then select Hide Selected Polygon(s).
Grass B Gone.

If you want them permanently gone, then right click again, select Geometry Editing, then Delete Hidden Polygons.
Warning: Geometry Editor is broken in one respect: If you have duplicate grass sections, this will affect them all in the same way.
So if you have three "Cushion Tall Normal"s in the same scene, all  three will lose the same bits that you remove from one.

Coryllon

OMG, As soon as I get done with my day job I'm trying this... This could save me HOURS of work. I learned a new trick. Live is good, learned something new with my Going to try this as soon as my day job is done... This could save me HOURS of work. I learned a new trick. Live is good.

Petercat

Coryllon said:

OMG, As soon as I get doOMG, As soon as I get done with my day job I'm trying this... This could save me HOURS of work. I learned a new trick. Live is good.ne with my day job I'm trying this... This could save me HOURS of work. I learned a new trick. Live is good.

Geometry Editor is your friend.

Coryllon

So if I tell it to delete them, will it delete them from the the actual base art? Or just the loaded version? If it affects all of them that leads me to think it's the base object and if I wanted them back I would have to delete and reinstall them with Daz Install Manager

smaker1

It will only affect your object in your scene. If you create another scene with the same object it will be complete.  The trouble is only for multiple same objects in the same scene: what you are doing for one object is affecting the others.

Yes I confirm : geomerty editor is your friend  !!

Coryllon

I have enough blades of grass in the scene I think no one will notice, not even me, and I had to restart the render on the scene 6 times yesterday because I found minor mistakes that I confirmed to day on the old one that one one else would have ever noticed...

Last question I think... Will the delete feature delete them on ALL hidden or just all hidden of that type; tuft3Tall for example

#ocdistheworst

smaker1

Not sure to understand : in geometry editor, you select the vertices , made them invisible. You can do it as many times as required. Delete hidden poly will delete all of them for you current selected object.

You can select vertices assigned to different materials with the same selection 

Coryllon

Ok so for every object then, I will have to delete them. I can't delete all hidden objects, globally with one click?

smaker1

If you are talking about vertices from the object: as the geometry editor works object by object the delete operation must be done for each one.

If your object contains thousand blades of grass:,  you can select all the blades you need and make only one delete. If you have one object for each blade (I doubt) it will be less fun! 

Coryllon

ok think it I got it also apparently with it selected you can hold CTRL the left mouse button and drag it over all the areas you want to select. That was a time saver.