which system actually works?

[joconnell]

Hey matt,

I used hairfx with vray for a set of ads and I found the easiest thing to do was render the hair in geometry mode so vray renders it with the same shading and motion blur as everything else. what you need to be careful of is that hairfx doesnt do anything adaptive with the hair splines - if the vertec count of the hairs change from frame to frame, vray cant render them with motion blur so its a problem. Aside from that it works quite well.

[MOSS]

I havn't had any problems with the latest version of Vray and hair and fur. I have heard others say it doesn't work, but it seems to work fine for me, I even found a way to do long hair using cloth for dynamics.

[tcbcoolscene]

Hey matt,

I used hairfx with vray for a set of ads and I found the easiest thing to do was render the hair in geometry mode so vray renders it with the same shading and motion blur as everything else. what you need to be careful of is that hairfx doesnt do anything adaptive with the hair splines - if the vertec count of the hairs change from frame to frame, vray cant render them with motion blur so its a problem. Aside from that it works quite well.

Thanks heaps for the reply, so using the max 8 styling window i could style my hair then convert it to splines and use the splines with hair fx i guess. Does anyone else do this?

[tcbcoolscene]

I did some research and have gathered that infact vray will not work well with any of the hair systems, lack of motion blur and such, does anyone know if this is true and if its going to be fixed some time soon?

*edit* and no changing the mode to geometry simply is not the solution, doing this we lose all specular highlights in the hair and it just looks really really bad and boosts render time loads

[Felixii]

Hi,

I have done quite many hair test renderings. At this point I have come to solution to render hair with instanced geometry. I mean planes wich are opacity mapped by hairmap wish has many hair on it. It seems that its almost impossile to render lot of real hair/fur because of memory limit! I use 3dsmax hair fur modifier it has very good control to hair. I render with mentalray because it will render hair immediately so no calculation first as vray and scanline do. Of course its a little different situtation when u render long hair :P

[joconnell]

I did some research and have gathered that infact vray will not work well with any of the hair systems, lack of motion blur and such, does anyone know if this is true and if its going to be fixed some time soon?

*edit* and no changing the mode to geometry simply is not the solution, doing this we lose all specular highlights in the hair and it just looks really really bad and boosts render time loads

You can still use hair materials and higlights with geometry hair - alternatively make a specular vray material and use that for the hair. The render times were fine for me with hair and fur - and thats with full gi and motion blur too (around 20 minutes a frame at tv res)

[tcbcoolscene]

You can still use hair materials and higlights with geometry hair - alternatively make a specular vray material and use that for the hair. The render times were fine for me with hair and fur - and thats with full gi and motion blur too (around 20 minutes a frame at tv res)

I have tried this many a time but all i seem to get is a chalky shader on the hair, could you by any chance post your setting up?, thanks very much :)

,Matt

[tcbcoolscene]

bump, anyone?

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.