Re: Image Alpha Channels
| From: | Rasmus Lerdorf | Date: | Mon, 20 May 2002 23:10:21 +0000 |
| Subject: | Re: Image Alpha Channels | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-84202@lists.php.net to get a copy of this message | ||
Read this slide: http://conf.php.net/pres/slides/intro/image_colors4.php
On Mon, 20 May 2002, Mike richardson wrote:
>
> Thanks, in advance.
>
> PHP's new image functions contain alpha transparency.
>
> How does one go about setting a color which has a transparent quality?
>
> For instance.. I would like to create two rectangles. one black, one
> grey, on a white background.
>
> I would like the grey one to be on top, and be 50% transparent, so that
> the black one will show through.
>
> Is this not possible? I can't seem to figure out how to create the
> "grey" color with an alpha channel property, so that it will allow the
> black box to show through.
>
> Best wishes.
>
> Michael Richardson
> "phpzen"
>