Posts Tagged ‘mental ray’

Mental Ray

Saturday, September 10th, 2011

Here’s is my reading for this evening.

my reading tonight

It’s a serious tome of knowledge.  I’ve been using mental ray since my first days with XSI 3.0.  I knew this book would help me transition to Maya, and further master my skills in mental ray for photo-realism.  Out of curiosity, and to save me time on my footnotes, I searched on amazon.com to see if there is a second edition.  There isn’t.  I did discover that people are selling this book for near 300$! I knew this book was a good source of information, but I understand now how coveted it must be at that price.  I’m glad I bought in 2009, for 37$, before the price hike.  I tend to buy books that interest me, even when I can’t read it immediately.  It’s a brilliant book.  It takes a lot of footnote taking, underlining, slow reading, and re-reading to understand and absorb the book.  I’ll take the author’s advice, and read through it first to gain an understanding of the topics, then use it a reference book.  Thus far, I’m happy to see the author and I have the same point of view,  “you must master the art of photography so you can bridge the gap between real-world photography and 3D.”  pg. xvii

SI: Decay From Camera

Thursday, September 23rd, 2010

In this six minute video tutorial you’ll learn how to create a custom render tree that will control the value of parameter based on the distance from the camera.

Decay From Camera

This is essential to controlling displacement maps for deep landscapes, or for special effects, like changing the color of the ground in front of the camera.  Your imagination should go wild with ideas on how to apply this technique once you have a functioning render tree.  In fact, with Autodesk Softimage 2011 you can create a compound of this render tree, and use it as a render tree node.  You can make it once, and then reuse it many more times afterward.

Smooth Range Node

Pearls, Pearl Shader

Sunday, February 28th, 2010
Pearls

Pearls

This piece is from an old project, but stands well on it’s own as an illustration.  Perhaps I could sell digital jewelry.

Software:  Softimage XSI 5.0 (could have been 4.2)

Date: 2005

I’ve included the render tree for those curious how it was made.  The secret to this render is not only in the render tree but is in the lighting.  I used photography of pearls for my reference.  I replicated the lighting and the format to the best of my ability.  The pearls are set against a white backdrop to flood your eyes with light.  A neat trick.

Pearls Render Tree

Render Tree