Eric Heft (eheft++at++dnaco.net)
Wed, 5 Feb 1997 17:05:41 -0500 (EST)
Brief question:
How do I get an inventor object with a texture, to display
the texture *EXACTLY* the way its defined in the texture image?
(at a range where the object is the same size as the texture)
Background:
I'm writting a program thats going to be used in vision research,
and its important to be able to say exactly whats going on when we
present a stimulus and before we can do the interesting objects we've
got to get some pilot stuff out of the way.
So, we need to present a checker board with nice sharp edges. I've
created a rgb image file with the checker board. I figured I map this
onto a simple object.
*THE PROBLEM*
If I bring the object close to me the edges of the checker board
are blured! I've tried turning anti-aliasing on and off and it makes
no difference. I've set the texture model to DECAL which at least
gets rid of the shading problem :)
In the man page for pfTexture there is a pfTexFilter function,
could this be what I want? How would I use it with the model?
Where can I look for more information? etc,etc :)
Here is the basic inventor model I'm using.
#Inventor V2.0 ascii
Separator {
Texture2 {
model DECAL
filename "chkbrd.rgb"
}
Material {
ambientColor 1.0 1.0 1.0
}
Transform {
translation 0 0 0
scaleFactor 10.0 10.0 0.1
}
Cube {
}
}
Thanks,
Eric
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