Hardware hatching

[Jolbertoquini]

Hi Guys,

Quick question about Octane texture I try to do it a kind of hardware hatching shader I manage to get really cool results but I was looking at a paper http://www.cs.utah.edu/~emilp/papers/praun01rth.pdf or http://www.cs.utah.edu/~emilp/research.html and I was think if is a way to achieve this , Basically my version I use octane Falloff Texture but I would like get a value from the light shape so I could map the different texture about the light I manage to get something from a Matcap normal and project as a mask but doesn't work as a shape...

Please any advise????

best
Jo

here some test from Octane I use a cube projection and falloff texture for mask plus dirt textures.

[BorisGoreta]

Could you post a test scene so we can continue testing from that ?

[prehabitat]

Cool concept! cant wait to see what you geniuses come up with here! love this kind of artistic output

[Jolbertoquini]

Quick test with Octane what I'm tried to do it was a kind of hardware hatching render.

I'm try to achieve this effect,I still need find how to use a light value for texture so the effect
will be drived by the light source, from now is only a facing ration effect.
I use Direct Light Kernel and full hd 7 seconds (just to upload could be reduce to 4 sec)

If anyone have a idea how to get a light value without UV requirement.
For all this I don't use UVS.

here a video and High resolution

https://vimeo.com/160091861

[Jolbertoquini]

Could you post a test scene so we can continue testing from that ?

Hi Boris ,

first I try to get working and more clean and easy to use... what is missing as I explain at the post before is a way to get light value to achieve the same look at the paper.
of course when i finish I will add at library to everyone this is the Idea. or add the orbx to upload at the video.

Best
Jo

[Jolbertoquini]

Cool concept! cant wait to see what you geniuses come up with here! love this kind of artistic output

Thanks soon is finish I will update all

[FrankPooleFloating]

Oh my gosh! Thank you Jo! Please share asap!

[BorisGoreta]

You need to use camera mapping projection node and set this camera at the supposed light position and orientation. This way you can hatch the model differently from different "light sources".

[Jolbertoquini]

You need to use camera mapping projection node and set this camera at the supposed light position and orientation. This way you can hatch the model differently from different "light sources".

Yes I told that to, doesn't work when I have move the camera.... i also try to use a matcap still the same problem also with a projection of a latlong image with spherical projection but I can't have a nice falloff to mix different values

[Jolbertoquini]

Oh my gosh! Thank you Jo! Please share asap!

hehehe yes soon I end this is not so complicate I just don't want send a mess file hehe