 | | | pintable displacement | pintable displacement 2004-05-13 - By +
Back
"being graham d clark", once i'll make a movie about you.
thank's guys
Graham D Clark wrote:
>Nice Ben.
>
>Probably not looking for a scripting solution but if so. (in Houdini
>even for simple pinatable it requires some expressions)
>Via scripting you can set the extrusion values by whatever, postion in
>camera view, or postion on grid, I assume you want the later, so
>retrieve the position values of each poly rative to the object in x and
>y and use that to retireive the rgb values of an image clip at that x,y
>(using getpixel or getpixel array) to drive the extrusion value.
>
>Actually here's the "original" pintable Houdini tutorial ;)
>with example file:
>http://www.sidefx.com/community/download/samples/pin_table/index.html
>
>Another way using camera projection in XSI instead of object space:
>http://www.grahamdclark.com/Studentresources/tutorials/paramProjector/fa
>cecb.mov
>
>-- ---- ---- ---- ---- ---- --
>http://www.grahamdclark.com
>2nd hand TD
>
>
>
>
>
>>-- --Original Message-- --
>>From: owner-xsi@(protected)
>>[mailto:owner-xsi@(protected)] On Behalf Of Ben Kilgore
>>Sent: May 12, 2004 9:45 PM
>>To: XSI@(protected)
>>Subject: Re: pintable displacement
>>
>>
>>http://www.semiote.com/temp/pintable.jpg
>>
>>texture map is 4096x4096...mapped square to the grid.
>>
>>ben
>>
>>-- -- Original Message -- --
>>From: "Andras Ikladi" <kodiak@(protected)>
>>To: <XSI@(protected)>
>>Sent: Wednesday, May 12, 2004 4:32 PM
>>Subject: Re: pintable displacement
>>
>>
>>
>>
>>>+ wrote:
>>>
>>>
>>>
>>>>because this is not a clean solution and would create unwanted
>>>>displacement noise on the geometry (wouldn't be perfectly sharp) i
>>>>guess. as i asked, i'm interested to know how i can drive the
>>>>displacement or extrusion of polygon faces (with the
>>>>
>>>>
>>merge-off like
>>
>>
>>>>way so they're independent) via displacement maps as seen on the
>>>>
>>>>
>>example.
>>
>>
>>>Why not just use animated pushmap on a surface and a bunch
>>>
>>>
>>of instanced
>>
>>
>>>and surface constrained sticks?
>>>Or you could use Helge's tools.
>>>(i don't really know them personally, but i remember some
>>>
>>>
>>of them suited
>>
>>
>>>for this problem..
>>>like scatter and some animatable weighmaps)
>>>
>>>here is the original houdini tutorial btw:
>>>http://www.techimage.co.uk/pdfs/pinboard1.1.pdf
>>>
>>>Andras
>>>
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>
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