How do I convert a LAMH shader to work with iRay?
MaxHancock
Posts: 227
How do I convert a LAMH (Look At My Hair) shader to work with iRay? Anyone have a handy link?
I found this, but I don't know what's going on...
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Do you have the free version, or the full version? Oh nvm, the shader, not the actual fur. I control click the fur shader that comes with this one https://www.daz3d.com/da-wolf-2-expansion-set
Hasn't let me down so far.
Control click? I'm trying to get this particular product to work with iRay: https://www.daz3d.com/polar-bear-by-am
I have the purchased version.
You export as an object & it will re-import when it's done. However, your bear needs to be in it's final x,y,z translation and x,y,z rotation before you do that. You can't move the bear at all afterwards. It is a slow process that will make you think DAZ will be crashing but DAZ usually doesn't if you have enough RAM.
The easiest way if you have the full version of LAMH and not just the player is to use the Convert to Fibre Hair option. Other than that you can save it as a .obj file. As nonesuch00 says though you have to pose the figure first and then save and load but you then can't make a pose adjustment. If you make an adjustment you will have to resave the hair.
I do have the full version of LAMH and have used it successfully in the past with other figures. This Polar Bear is pretty detailed, and for a moment there I thought it was crashing DAZ Studio, but it wasn't. After sending it to render I saw very little activity, and it took 15 min before the render window even appeared, after which it rendered pretty quick.
I found this, Iray Catalyzer plugin... but I don't think that will work on my Polar Bear since it doesn't have an IRay Catalyzer preset? It appears that's the case.
https://www.daz3d.com/lamh-2-iray-catalyzer
In the mean time, I'll try your advice. Thanks so much sharing the knowledge!
The Catalyzer preset for the Polar and Brown bears will be in a new set which @Alessandro is working on.
This image uses Fiber Hair
Click on image for full size.
That looks exactly like what I need. How do you convert it to, or use, fiber hair?
When you open the LAMH window there is a button at the top to export to FiberHair.
Oh yeah sorry, I said obj but I meant fibre hair. Your export it to fibre hair...it still takes a very long time to export & re-import it though. And you still can't pose afterwards. I think to pose you need to rig the fibre hair.
If someone could explain how to rig fibre hair so you can pose afterwards that would be great!
I see. I just tried it out and it works pretty good. It does take a long time to export, but I can render it in iRay now. Thanks a bunch guys!
Remember to clear everything from the scene except the bear and fur then save it as a Scene Subset and then you will always have it to hand if you need it again.
I know this is a bit old but i need to do this. And I'm not seeing a Convert to FibreHair button. Just To OBJ. Is that what you're talking about? It's been ages since I played with LAMH.
It's been a long time since I've used this, but here is a pdf of my notes on it...
It sounds as if you have the player and not the full version. I just had a look and the Save to Fibrehair is in the LAMH Editor.
OH! Never mind... I found it in the LAMH Editor.
Oops! It looks like our posts crossed. Thanks for all the info.
This video might be helpful to some...
From LAMH to IRay: a better tutorial (I hope)
https://www.youtube.com/watch?v=UYdpH6JeSyg
From Alessandro Mastronardi:
In this movie I'm showing how to use Look at my Hair export to OBJ feature to have fur generated on the fly and rendered with Iray.
Hi there :)
I had the same issue that most of you, I added a Squirrel by AM (Rodent Rodents by AM: Squirrels of Eastern Hemisphere) in a very huge UltraScenery scene with a detailed character and several animations. I couldn't render the iRay Catalyst version because to a lack of VRAM. Either it crashed DAZ Studio, either the render took a while.
I succeeded to render the animation by doing a little trick :)
I converted the Squirrel fur to very huge OBJs using Fiberhair export from LAMH and then I imported OBJs into Blender and used Decimate : Planar modifier. By using a 40° angle, I was able to greatly simplify the fur geometry. Finally, I imported the simplified fur in DAZ Studio and conformed it to the Squirrel using Tranfer Utility:)