Aspect Ratio (--ar)
The aspect ratio is one of the simplest parameters to understand because, as its name suggests, it will determine the proportions of our image. However, this does not make it any less important; in fact, it is quite significant. Keep reading to find out why.
For the aspect ratio, we can choose any pair of positive values we want, separated by a colon (:).
This way, we can create square images (1:1, default value), wide rectangular ones (x:y), or tall rectangular ones (y:x), where x is always greater than y.
As stated at the beginning, choosing the right aspect ratio is crucial for the outcome to align with our intentions.
Let's take a look at some visual examples, although we encourage you to continue exploring different possibilities based on the type of image you want to create.
Portraits - 1:1
Full-body character - 2:3
Landscapes - 16:9
Cinematic widescreen - 47:20
Vertical storytelling (ideal for social media stories) - 9:16
This prompt has been generated using Additive Prompting. To do this, we have categorized the prompt in the following way:
Practice: How does a different aspect ratio affect the same prompt?
Understanding how the aspect ratio influences a prompt, completely altering the focus of the resulting images. For this, you have the following prompt that you'll need to adapt to make it a wallpaper for a PC and another one for a mobile phone.
The solutions for this exercise are nearly infinite, but a good approach could be to use a wide rectangular aspect ratio for the PC version and a tall one for the mobile.
For example, 16:9 for our wallpaper:
And 9:16 for the mobile.
As you have seen, this parameter provides us with the ability to adapt our images to the specific needs we have at any given time. Try out how it influences your prompts!
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