Can shadow be created in a vacuum?

Posted by Mason on May 5, 2023


Have you ever wanted to create a shadow in a vacuum? I have, and it is possible. The key is creating the shadow first, then creating the object with it. First, we'll need to create a new layer with nothing on it. Then we'll add a drop shadow effect from Photoshop's Effects menu. Finally, save your poster as an image file that can be printed or shared online.

create new layer (add a blank layer)

Now, to create the shadow effect, you will add a drop shadow layer.

To do this:

  • In Adobe Photoshop, click on the "Layer" menu at the top of your screen and select "New Layer." Name it whatever you want. The name doesn't matter too much; we'll just be deleting it in a bit.
  • Now that you have your new blank layer selected, go up to the top menu again and choose Edit > Fill (or press Shift + F5). Choose Black from the Color dialog box that appears next. Click OK when done.
  • Now go back up another level of menus to Effects > Stylize > Drop Shadow... You can also access this menu item by right clicking anywhere on your canvas and choosing Drop Shadow... from under Blending Options. In either case, what happens next should look something like this:

add a drop shadow effect

To add a drop shadow effect:

  • Select the layer you want to apply the drop shadow to.
  • Click on the Layer Style icon in the toolbar at the top of your screen, then select Drop Shadow from the drop-down menu that appears (see Figure 1).
  • Adjust any settings for your drop shadow as needed (see Figure 2). The settings you adjust will depend on what type of effect you're going for, but generally speaking, it's a good idea to start with something simple and build from there if necessary—don't get too fancy right off the bat!

save your poster as a png image file

Once you have finished editing your poster, save it as a PNG image file. PNG is an excellent format for photos because it offers lossless compression and supports both indexed-color and truecolor images. The WebP lossless image format was created by Google to address the same issues as PNG, but at smaller file sizes than what you would get with JPEGs or GIFs.

You can also use a number of different software tools to convert your image files into different formats (for example, Photoshop). One thing to remember when using these tools: if you’re converting from one lossy format (like JPEG) to another lossy format (like GIF), then there will be some degree of degradation in quality due to how these algorithms work. When encoding an uncompressed bitmap into a compressed raster graphic file like GIF or JPEG, the algorithm has no choice but to remove data from the original raw data—what we call compression artifacts—in order for us humans not notice any differences between images after viewing them on our screens!

you can create shadow in a vacuum

You can indeed create shadow in a vacuum. Shadow is any dark area caused by blocking light, and you can block light with objects placed in the path of it. So if you were to put something in front of a beam of light such as a baseball bat or a pool cue, then it would be possible for this object to cast shadows on other objects behind it as well. But what about in space? Could we use something like an asteroid to block out the sun's rays?

There are some problems with using an asteroid as your source of shade: first, there aren't many asteroids big enough (at least not enough to have their own name), so finding one might be difficult; second, even if you found one that was big enough and far away from Earth and other planets or stars that could reflect off its surface (which would cause some weird reflections), how do you get at it? You'd need a spaceship or rocket ship equipped with lasers powerful enough to cut through rock but not powerful enough so they could hurt anyone else when they exploded upon impact; thirdly—and most importantly—you need someone who knows how drive said spaceship/rocket ship safely!


So what have we learned? That you can create shadow in a vacuum and that png is a great file format to use if you want to save your poster as an image file.

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