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Transparent templates

Not sure if this is the correct forum for this, but is there a way to make a transparent template to use as like a map overlay?
1476235996
Tetsuo
Forum Champion
Could you elaborate a little? What are you trying to accomplish?
Literally a clear template that I could use to lay over an in-game map. The clear template would have markings on it to relieve certain things not on the actual map. 
1476236388

Edited 1476236416
Tetsuo
Forum Champion
Would the  GM layer accomplish what you want, or do you want it visible let to the players as well?
No. The players would need to see it. 
1476236710
Tetsuo
Forum Champion
You could drop tokens onto the map that contain the info you want (I.E.: a map legend, ) and give players control of it without enabling sight. They would see it on the map, but wouldn't gain any vision from it. 
1476245130

Edited 1476245334
Gold
Forum Champion
You actually can, Kenneth, since transparent PNG format is supported. I've used this for purposes like adding Rain or Snow across the entire map, so it is a semi-transparent map tile with lines of falling snow; the marketplace also has the same idea for a toxic cloud. Very large PNG with transparency like that can cause a lot of lag on some systems though (lower end computers especially), and it has other disadvantages. One problem is token-selecting, if your monsters or characters have tokens -- will they be under or above the transparent graphic? If they're under the transparent tile, it's harder for GM to select the ones that are under.  There may be reasons to try it, experimenting is good. If it fits your game purpose, I would advise that it may be better to use discrete objects on the token layer, rather than one complete transparent overlay. Secondly if it is a permanent overlay addition, it may be better to go into a graphics editor program, add the overlay, and save it to your background image as 1 non-transparent background image. (For example if you want to add a topographical map line study). What kind of map do you want to accomplish with this?  I could see using a large overlay for something like a HUD or tactical / wargame / positions overlay, if you wanted to lay down whole scenarios at once and didn't need to move the individual X's and O's on their own.
What I want to create is a silhouette of a target and have a overlay placed over it to determine hit location.  That is a better way of saying what I was looking for.  With that said, is it possible to scan a "transparent" overlay and drag it to R20 and have it be "transparent" in game to act as an overlay on top of a silhoutte?
1476248066
Gold
Forum Champion
Yes, you can add a reticle or the like. What do you mean by scan? If the overlay graphic that you upload is a PNG with transparency, the transparency should work.&nbsp; Wiki docs, <a href="https://wiki.roll20.net/Image_Best_Practices_for_R" rel="nofollow">https://wiki.roll20.net/Image_Best_Practices_for_R</a>... Post again if you have any more questions about it.
I mean scan an actual "clear" copy of what I want. And yes reticle is exactly what I'm looking for. Idk why I couldn't come up with that word. Basically that over a person silloutte. 2 images same layer.&nbsp;
1476251001
Gold
Forum Champion
Create a graphic with transparency, save it as PNG. Unfortunately I'm still not exactly sure what you mean scan, do you mean use a hardware scanner to import a graphic from a book? You would need to use a graphics editing program to make the blank parts transparent and save it as PNG to keep the transparency.