@Stefan, @Matt
If you can ask them or send me their contact address, that would be nice.


Some more details what I am currently thinking of:
The shader is a helper to have something visible in the viewport.
Right now you have one of these views in XSI, which I want to replace/improve:
 - Geometry Shader cube
 - emFluid display via particles/cubes
 - ICE particle volume with default XSI particle sphere shader
 - Polygon object (which is filled with a volume shader)

A shape that animators can see and interact with.
Therefore no custom display or an external renderer like exocortex fury.
(which would both only display the volume only)
It should be like any other 3D object in your scene.
It should not be a production-quality renderer.
(Therefore you have mentalRay which gives you the ability to render everything 
else with the volume)


There is no hurry as there would be many other parts on my side.
The volume data is stored in a 3D voxel/cell array of float values for 
color/density.
Simple shading is required for preview, otherwise the 3D array includes a 
pre-rendered shaded volume.
(cached during the mental Ray rendering)



The phoenix Maya GPU preview seems to be a good example:
http://www.youtube.com/watch?v=cE-p2MwTuuM&feature=player_detailpage#t=187s
The shader itself does not need to compute this stuff.
It just gets the 3D array with color/density.


Holger Schönberger
technical director
The day has 24 hours, if that does not suffice, I will take the night




________________________________

        From: softimage-boun...@listproc.autodesk.com 
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Matt Lind
        Sent: Friday, December 14, 2012 11:11 PM
        To: softimage@listproc.autodesk.com
        Subject: RE: Realtime shader experience? Artist Requests? Other 3rd 
partyrealtime shaders?



        2) OpenGL shaders run the fastest, but I wouldn’t call them realtime.  
Softimage spends an inordinate amount of time polling
the scene and viewports to figure out what to do even before your shader code 
is called to draw.  OpenGL shaders (GLSL) also have
the fewest bugs in the SDK compared to DirectX or others.



        3) We have many custom tools built for our production from 3D paint to 
shading to basic stuff that Softimage never seems to
get around to doing.



        4) Depending on the technical requirements and schedule, I may know 
someone.









        Matt











        From: softimage-boun...@listproc.autodesk.com 
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Schoenberger
        Sent: Friday, December 14, 2012 12:13 PM
        To: softimage@listproc.autodesk.com
        Subject: Realtime shader experience? Artist Requests? Other 3rd party 
realtime shaders?



        Hi



        I am thinking about a realtime display of the volume shader in the XSI 
viewport.



        I am searching for input from multiple sides.

        1) Artists using the shaders.

        What do you expect (beside seing the volume), any switches you want to 
have?



        2) Development of the Shaders.

        I never touched any realtime shaders, so if anyone has any hints on the 
implementation, let me know.

        Which type of realtime shader should be used, where are problems, would 
it be compatble with e.g. the Maya viewport, ...



        3) Similar plugins.

        Do you know any other plugins for SI that display custom stuff?



        4)And at last, if you know someone who can just develop this shader, 
let me know.

        Saves a lot of time :-)





        thanks,

        Holger Schönberger
        Binary Alchemy - digital materialization





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