Gradients - Fading solid white to nothing?

[Itchy]

Is it possible to do this, setting up a gradient so that at one end the color is white and the other end is nothing, i can't seem to find a way to do it with the gradient. I did however think of a work around, creating 10 objects and then setting each one a different opacity, 100, 90, 80, 70 and so on down to 0 to achieve the require affect. also doing it this way you get a line at each of the changes, rather than being smooth.

Is this the only way, anyone got any other ideas on how i could do it with one object, rather than 10?

Regards, Ian

VW 2008 SP3

Windows XP SP3

Edited February 11, 2009 by Xsasinator

[islandmon]

You could make a Gradient Texture and assign a transparency mask to it... then map that texture to an object.

[VWUser2335]

Islandmon,

Could you please elaborate:

Let's say you wanted to draw a circle with a transparent center which transitions to a color on the perimeter.

How would you do that?

[islandmon]

You can use a transparency mask to knock out anything :

http://www.fractalnet.org/gallery2/v/FRACTAL/M-Capsule/CAD_FRT_Vases.jpg.html

Just create a texture and then assign a transparency mask to it.

http://www.fractalnet.org/gallery2/v/FRACTAL/M-Flower/FRACTAL_M-Flwr2.jpg.html

The color you assign to transparency can be set based on contrast and hue.

You can erode the transparency, too:

http://www.fractalnet.org/gallery2/v/FRACTAL/TanPod/FRT_TanPodUniv_4.JPG.html

[peterlukejenkins]

Does anyone have a simple answer/solution to this original query? It seems the solution proposed is based on rendering.

I have exactly the same need, using VW for some 2D, non-rendered diagrams, but would find solid-transparent gradients really helpful!

Any advice would be greatly appreciated.

[ray isaacs]

yes, this is something i intended to add to the wish list. the texture workaround is more complicated than necessary. a simple fade to nothing in the gradient settings would be great.

my work around is to fade a very, very dark, saturated color to white, then make the object or class very transparent. this has limitations of application and will not work with white, as ian is trying to do.

cheers,

ray

[PVA - Admin]

Its mostly that there is no option for regular 2D fills to be "clear", there are opacity settings but they will apply to the entire object and a fill of none will also affect the entire object.

It would definitely be a solid wishlist item though. Something like the addition of a "Clear color".

[IanH]

And whilst on topic of wish lists, different opacity setting for pen and fill. Its a real pita having to double up on shapes just to achieve solid pen and semi transparent fill

[PVA - Admin]

And whilst on topic of wish lists, different opacity setting for pen and fill. Its a real pita having to double up on shapes just to achieve solid pen and semi transparent fill

Thats a VERY good one, adding both to the request list now.

[ray isaacs]

thanks, ian. i wanted that so many times!

[Mark Taylor]

Yes! I agree! Separate opacity control over both the perimeter line and the fill of an object would be great.

On those gradients it would be fairly easy that when the color arrow is clicked the choice for color AND opacity could go together, like Adobe Illustrator.