Mental Ray Displacement (with file download!!!!)

First topic message reminder :

Hindi kasing tindi ng mga tutorials ni Sir Edosayla but nonetheless useful for those wanting to learn mental ray.

This not different from Jeff Patton's displacement technique. Mad props to Jeff!
This is applicable for carpets and grass. But this time we'll be making a simple grass displacement.

Here in my example is a simple plane.
I've added a tessellate modifier.


Start with a Mental ray material shader.
This is pretty much easy to follow.
These are the material settings.



First, on the Basic Shaders I've used a DGS Material on the Surface slot.
And on the Diffuse slot of DGS apply the grass material.
Make sure that Glossy Highlights is black, unless you want glossy grass/carpet!


Second, on the Extended Shaders under Displacement, I've used a Height Map Displacement.


For the Height Map I've used a Cellular map. The numbers here are variable.
Just tweak them to your preference.


Lastly, Under the Renderer tab, on the Shadows & Displacement rollout:



1. Edge Length - The higher the amount the faster the render but then you lose

the finer details.

2. Max Displace - The height set in here should be higher than what you

specified in the Maximum height in your displacement to avoid errors.

3. Max Subdivision - I've used a small amount here because I have tessellated my plane already.

4. Smoothing - Uncheck it. We don't want smooth grass.

And here is the outcome.

edosayla wrote:to create a scene its very important na gumamit ka ng real world scale para ma achieve mo ang tamang settings ... try to do it on a scaled dimension para ma check mo kung ok or hindi

Spot-on sir Eric! Tumpak! Working with real-world scale helps. Hindi uubra ng tama ang settings kung hindi tama ang scaling mo sa scene. You will have to tweak until kailanganin mong gumamit ng mga "old-school" tricks para ma-achieve mo, which is may I say long method.

Heto mas maganda basahin. Mas detalyado ang mga instructions. Hope this helps. http://3dsmaxrendering.blogspot.com/2008/05/ultimate-mental-ray-grass-shader.html

Ok, for those finding this little instructional a little bit crazy to follow here is the Max file for download. It's in 3dsmax 2009 version. You can do whatever you want with it. You can scrutinize and dissect it and get the hang of setting up displacement for yourself.
Have fun with it and enjoy.

sendspace.com sendspace.com/file/x890dt

galing sir thanks

thanks for sharing sir. newbie here.. explore muna ako para madami pa matutunan..

salamat sir, malaking tulong 'to.

wow! cool galing sir... salamat sa dagdag ka alaman sir.......

@ all: Walang anuman mga bro. Palawakin niyo pa kaalaman ninyo. Baka pwede nyo i-upload mga trial renders ninyo sa displacement dito at madiscuss natin kung anu-ano pang pwedeng baguhin o i-tweak sa settings para mas mapadali pa ang pagrerender ng scene na merong displacement.

thanks master logik more please ...

edosayla wrote:thanks master logik more please ...

Kulit din ni sir Eric. Alam mo na to di ba?

hehehe isa pa master ha ... hehehe sabi na nga thanks e hehehe hintay lng natin mga kapatid marami pang tinatago yan si master logik

May mabilis na setup para sa displacement ng mental ray. Sa loob ng Arch & Design, sa pinakailalim makikita yung Mental ray Connection, sa Extended Shaders, i-click yung lock icon para magamit ang Displacement map.

Piliin ang 3D displacement(3dsmax).
Ilagay ang displacement (bitmap) image sa Extrusion map.
Pihitin ayon sa kagustuhang taas at lakas gamit ang Displacement Length at Extrusion Strength


Enjoy!

Salamat pala sir logik

dito ako nagbase sa tutorial niyo,galing mo sir :thumb:

bigla natigil sa pag-aaral sa 3dmax,sana maituloy ko ulit

one9dew wrote:Salamat pala sir logik

dito ako nagbase sa tutorial niyo,galing mo sir :thumb:

bigla natigil sa pag-aaral sa 3dmax,sana maituloy ko ulit

Walang anuman. Natutuwa ako kahit paano ay may naitutulong ako dito sa online community ng mga magagaling na pinoy CG artists. Sana maipagpatuloy mo ang iyong pag-aaral ng 3dsmax. Good luck.

WOW galing sir ... thanks sa share keep posting