IMAGE RESOLUTION GUIDE
Understanding Image Resolution.
Render resolution is one of the most important specifications of image quality.
Each image has a dimension (or resolution), if the resolution is too low, individual color squares (pixels) will be visible and the image will look blurry.
When it comes to 3D rendering and animation, higher resolution is what you want.
We will show below examples of very low and high resolution versions of the same image.
*Please note these are examples and differences in quality are exaggerated.
Low resolution 45 x 25px
High Resolution 4000 x 2250px
IMAGE RESOLUTION FOR PRINT
Image resolution can be a confusing topic if you want to use it for print as image scaling,
DPI and file formats is not something that people usually think about if they are not in the industry.
To make it easy, we're going to break down the resolutions needed for the most typical sizes,
for optimal quality at 300DPI.
(DPI is a term that refers more to analog printing. PPI, or pixels per inch, is more precise when talking about images viewed on a screen)
DPI Refers more to analog printing
PPI is more precise when talking about images viewed on a screen
IMAGE RESOLUTION FOR THE WEB
When optimizing a website, the best option is to use the least amount of resources without compromising quality.
This improves the loading time of your site.
When adding images to a website, it's best to make the file sizes exactly the size you need.
If your image is displayed at 800 × 600 at 72 PPI, there is no point in uploading a 6000 × 6000 300 DPI image.
It can take a long time to compress your images and tends to be more expensive.
IMAGE RESOLUTION FOR BILLBOARD IMAGES AND EXTREMELY HIGH RESOLUTION
When creating a billboard image, it's important to keep in mind
that billboards are typically not viewed up close,
and creating a resolution of 72000 x 93182 pixels at 300 PPI is not practical.
So, what is the best file resolution for large-scale printing projects?
For this it is best to work with high PPI and reduce it once the image is ready to print.
For example, I would start by creating an image with the highest possible resolution,
such as 8000 x 8000 @ 400 PPI, and once the image is finished, scale the PPI from 400 to 40.
The image should now be suitable for 20' x 20' at 40 PPI, which is an acceptable resolution for a billboard-sized image.
Because billboards are likely to be viewed from farther away, the need for a narrower pixel grid is reduced.
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