I'm having some problems using decals, where I need the background to be transparent. I have a chrome panel and want to add a decal to simulate the silkscreen process adding text and logo's etc. It all works fine when using the full picture, but when I specify the background colour as transparent, I get a fringing effects around the text.

I am using a two colour bmp (black and white) and specifying the white as transparent. I get white fringing around the edges of the text which looks horrible! I have tried a full colour bmp with the same results. I can't leave the background intact, because it is a chrome panel.

Can someone PLEASE help me out?



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This is a common problem and known bug with PW decals. The best method I have found is to create your own masking file to remove the background. When you create the mask shrink or enlarge the size by a pixel or two so it overlaps your image just a bit. When you insert the decal in PW you have the option to use a mask from a file. This doesn't work 100% but I usually have acceptable results. You could also change your background to a chrome type color and use the mask trick I just mentioned. May give better results. SW really needs to address this issue!

Reply to
Rob Rodriguez

As with most things in SWx, it is best to think of the 'real world' process and try to mimic that. Decals in the real world do not, in general, experience fringing problems because they have 'bleed' When creating a decal that needs to be trimmed with a transparent perimater, you need two files:

1) the image 2) the mask aJust like in the real world you need the 'media' and the 'screen' Remember that the mask sets the perimeter... THE IMAGE DOES NOT!

Think of how silk screening works - there is a mask on a silk sheet that allows ink to flow through. The ink is spread indescriminately across the back, and is only able to fall throught he holes in the mask.

This is how your decals must work to eliminate fringing.

The image should be solid color all the way to the extent of its rectangle The decal mask should indicate where that solid color stops, just like the mask on a silk screen tells the ink where 'not' to flow.

Reply to
Edward T Eaton

Thanks Rod and Edward. I'll give that a try today, it makes perfect sense, I just didn't 'think' that way.

If they have the transparency option there, surely it should work right! The whole area needs a little work IMHO, not up to par with the rest of the package.

thanks again


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