maybe some one can help (jagged edges) along with my latest example

im not sure what i do wrong but i always have jagged edges and i can not figure out why or what i have to do to avoid it? i notice its worse with a lower res pic but it happens even when i use a high res pic. i use the Polygonal Laso tool to select everything if that helps. maybe there is a setting for the polygonal laso tool that i dont know about? so if one of you could shed some light on this for me, it would be sweet

Edited: 1/10/2009 10:14:41 AM by DougyFrisch

Well your on the right track as far as needing a high res photo, cause a lower res will def. cause some killer choppy lines. And your also right again, there is a setting that you may be missing on the poly lasso tool, it's called "anti-alias". it basicly softens up your lines for you so you can avoid that choppy edge. depending on your version of photoshop, it should be along the top options bar after you select your tool, and it's not just available for the poly lasso tool, it's used with many other selection tools to help keep things soft. below are a few quick samples to show you what anti-alias can do for a line... hope this helps you out at least a lil bit and gets you pointed in the right direction. Rendering looks good btw, just keep up the practice and you'll start to figure out all the lil tips n tricks...

damn man! thanks a ton. this is the only thing that discourages me from doing renderings(jagged edges). you dont know how happy this makes me. your my hero for the day, thanks dougy

i just tryed it out, works like a charm

REDO

oh ya, way better... keep up the practice man...

If you want to continue to use the lasso tool for cutting out vehicles you can also try and do a small feather on the selection.....basically make your outline still using the way DougyFrisch just taught you and then go use maybe a 1-3 pixel feather that will also soften the edges.....just remember not to go to heavy otherwise you will loose parts or the edges will fade out.

learn how to use the pen tool

3 pixel feather is pretty heavy even on a high res pic.  i use a .25 at most and mine are usually purdy clean edges

Ya I would have to agree...feathering is no good...makes for a blurry image if you are using it to cut things out...learn the pen tool...once you get the hang of it you will wonder why you ever used the lasso tool for cutting out images....extremely quicker too.