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Giant plus sign projected onto surfaces from Projector/Additive?
I finally got the projector to stop tiling the images and got rid of the odd edge pixels that were appearing out of nowhere. I'm using the Projector/Additive shader from the community site:
http://www.unifycommunity.com/wiki/index.php?title=ProjectorAdditive
The image projects as it should but the problem is that there appears to be a giant plus sign drawn to the edges of the object being projected onto which is visible when far away from said lines. This occurs in scene view and game view and it is affected by the color and falloff of the projected image. It's not any particular image as all of them do it, and the object being projected on doesn't seem to matter as I have tried it with terrain, Unity's objects and importing from Maya.
Any clue what might be causing this?
Answer by Waz · Aug 08, 2011 at 05:12 PM
Sounds like you haven't gotten rid of edge pixels, at least not in the mipmaps. Check the import settings of the image, especially the Border MipMaps option. You can look at each mipmap in the preview using the slider on the right above it.
I wasn't saying I had gotten rid of them completely, there was just some oddity where 3 rectangles were appearing on the edges of the image that weren't there in the actual image. It appears that the mipmaps are actually the issue though. For some reason, even though border mipmaps was checked in the import settings, I had to uncheck it and reactivate it in order for it to take effect.