shaders
Mental Ray Override Material (Maya)
Quick post on a very useful but obscure attribute that can be added to any geometry so you can override the material that is assigned to it.
A practical use for this would be fur/hair in Maya. As by default hair and fur is shaded by Maya’s default shaders. These shaders are hard coded into Maya, and there is no usual way of just selecting the feedbackshape/pfxHair and assigning any shader you want to it.
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New shaders + linear tools
Hi all I have just compiled new shaders for mentalray:
New features ::
- ar_pointPosition — misc shader for generating screen and or world space position of current surface point
- ar_bufferWrite — now working with named buffers
Also you can now download a little tool for converting tifs to linear openEXRs
This file contains executables for linux 32 and 64 bit, intel based mac os x, and windows 32 bit.
You will need to have openexr and tiff libraries installed on linux and mac os x .
useage:
from a console/terminal simply run :
sRGB2Linear “file_to_be_converted.tif”
this will spit out an exr image that can then be used as your colour texture inside your rendering package.
Tutorials should be out by the end of next week.
Ash -out
Updates
Hi all just a general update of how things are going.
Shader library : should have a package for linux available by the end of the week. Windows hopefully next week. No documentation as yey but all in good time.
Parade3d : is coming along nicely, got the main interface going thanks to qt4. Just woring on different modes, wireframe, shaded, textured etc.
Superman : this project has been severly delaied do to other projects taking priority. We have got some colour versions, and will be posting a WIP of it soon 
More to come
Ash out