Q: Texture map "flickering"

[Per Ekman]

"Audrius Stundzia" <adv_biologic at hotmail.com> writes:

> Dear fellow vtker's,
> 
> I generate an orthogonal coordinate grid system as a 2D texture
> map (it's overlayed on top of another texture map image).
> 
> I find that as I zoom in and out (especially as the image gets
> small) the horizontal and vertical grid line of the coordinate
> grid appear and disappear ("flicker"). The InterpolateOn()
> of vtkTexture reduces this flicker somewhat.
> 
> I also have the swap buffers turned on (not that this seems to make
> any difference)
> 
> Why is this flickering occuring? Is this anything else I can due to reduce 
> this unsightly effect?

It's probably an effect of the subsampling of the texture map when it is
rendered smaller than the original resolution. I don't know if Creator 3D
supports multisampling but that would help. Using mipmaps might also help.

*p
---
"Being ignorant is a right?"
"I don't know, but I refuse to find out!"	-Calvin and Hobbes


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