Rendering Resolution

3D Rendering Resolution | Image quality examples

Rendering Resolution Images

Rendering High Resolution Images In 3ds Max

Paper Size                   DPI         Image Size (WxH)

A4 – 297x210mm     300dpi     3507 x 2480 (standard)
A3 – 420x297mm      300dpi       4960 x 3507 (hi-res)
A2 – 594x420mm      300dpi       7013 x 4960 (ultra)
A1 – 841x594mm      300dpi       9933  x 7015
A0 – 1189x841mm    300dpi       14043 x 9933

 

3D Rendering Image Resolution Examples

1. Ultra High Resolution Image 4000 x 1100 px (image compressed and optimized for web)

ultra hd rendering

2. High Resolution Image 2500 x 1400 px

visualization 3d company

3. Low Resolution Image 900 x 500 px

real estate rendering service

Generally render out at 2000×1500 px. this is pretty good for most sizes.

This is quoted from Jeff Mottle in a previous post –

Basically when you are printing/rendering an image you have three variables to consider:

1. DPI/PPI (Dots per Inch/Pixels per Inch) Both are the same thing and are also known as resolution.

2. Pixel size – measured in pixels (this is normally what you render to andiis how monitors are measured.

3. Print size – measured in inches (can be anythign but I’ll use inches for convinience)

1. DPI/PPI

First you need to know what resolution your printer can handle. Some will say that they go to 1200 dpi or 600 dpi, but in practice you should never need to go bigger than 300 dpi, even if you are printing a 60 ft wide billboard. Just like digital camera’s non-optical zoom abilities, printers use DPI to claim superiority in the industry.

DPI is the number of dots of ink that are put down by your printer onto a page over a one inch line. The amount of resolution that a printer can achive is based upon how close together the print head elements or jets are positioned. Of course it is a bit different with a 4 color press, but for now I’ll just leave it at that. You may also notice that your inkjet will say that the vertical resolution will is different than the horizontal resolution. This is becuase in one axis the printer is relying on the proximity of the jets to each other, whereas the oher diection is related to the sensativaty of the rollers that are feeding the paper across the jets.

2. Pixel Size

I’m assuming that everyone is pretty familiar with pixel size as we deal with is on a daily basis. However, don’t assume that your print house will be, because in many case they are not. You will usually need to give them an image size in inches based upon the resolution that their printer is capable. Don’t try to explain it to them becuase they just won’t get it.

Pixels are something that your monitor uses to describe the very small square dots (pixels) of light that are lit up by the guns of your CRT. (LCDs are different) Typically we say that a monitor is 72dpi.
A pixel translated to a page is usually represented by many dots of ink depending upon the print resolution.

3. Print Size

This one is pretty self explantory and is the image size on the page that your printer printed.

So you know what each one is but how do they relate to one another? As I mentioned earlier there are thee variables in this equation. To get one you must have the other two, so here are the possibilites:

For these examples let’s assume that our printer is capable of 300dpi I am going to print an 8 x 10 image and my rendered pixel size is 3000 x 2400

You have Pixel Size and DPI and want image size:

This is useful when you want to know how big an image will print on your page if you do not allow the printer to scale the image at print time. (ie scale to fit).

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Image Width = Pixel Width / DPI

Image Width = 3000 pixels / 300DPI

Image Width = 10 Inches

Image Height = Pixel Height / DPI

Image Height = 2400 pixel / 300 DPI

Image Height = 8 Inches

You have Pixel Size and Inches and want DPI

This one is not all that useful and I can’t think of any reason to use it practially but here is it anyway.
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Horizontal DPI = Pixel Size (Width) / Inches (Width)

Horz. DPI = 3000 pixels /10 inches

Horz. DPI = 300DPI

You can use the same equation for the Vertical DPI as well. Some printer are the same resolution in both axes.

You have Inches and DPI need pixels

This one is usful when you know that your printer can print 300dpi and you would like to print an image that is 8 x 10 and need to nkow how big to render your final image to do this. Of couse you could always render it bigger, but rendering time is precious so you never want to render more pixels that you have to.

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Pixel Width = DPI x inches (Width)

Pixel Width = 300 DPI x 10 inches

Pixel Width = 3000 pixel wide

Again the same formula can be used for pixel Height as well.

So now you know what each variable is and how they relate to one another. The biggest hurdle I suspect is how they relate to one anotehr visually, but that will have to wait for my DPF document.

Hopefully this helps some of you and does not confuse you even more. Even if you do not fully understand the why yet, you will at least have the formulas so you know how.

From http://forums.cgarchitect.com/28-render-quality-size.html

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