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projecting text onto a plane

projecting text onto a plane

Post by Carol Wa » Wed, 18 Nov 1992 06:52:58



i am looking for an ftp site (or other source of free software) with a
program that can display and scroll text on a random plane for
inclusion in a rendered 3D scene.  this is just for "artistic touches"
(simulate a computer screen with scrolling text) in an animation i
want to make.  i will be using either RenderMan or RayShade for
rendering if that makes a difference.  likely anything that produces
polygons would be great.

any help/leads/software! 8-)  would be greatly appreciated.


 
 
 
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1. How to project a vertex onto a plane ?

How can I project a vertex onto a plane ?

my problem:
I have a vertex, e.g. (x0, y0, 0) ,so 2D actually in XY plane,
and I want to get the coordinates of it,
after projection on the plane where triangle e.g. {
(x1,y1,z1),(x2,y2,z2),(x3,y3,z3) } is on.

I need this to calculate lightmaps for every face in my mesh.

Thanks in advance,
Kris

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