The Shading Course

Practice: AO Study 1 (2D)

Lesson by

1.8K

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Assignments 59Lesson NotesDownloads 2

Practice: AO Study 1 (2D)

Lesson by

Dorian Iten

in The Shading Course

1.8K

Mark as Completed

Assignments 59Lesson NotesDownloads 2

Overview

In this assignment, you'll start taking your shading skills to the next level by understanding Ambient Occlusion (AO) at a deeper level.

Materials Needed

The project image.
A red colored pencil, or a digital painting application.

Steps

Download the project file and A) print it out or B) open it in your preferred digital painting application.
Assuming diffuse light from the sky, indicate in red where you think the occlusion shadows are. Lighter red = less occlusion, darker red = more occlusion.
When you’re done, check the solutions included in the ZIP file. It contains: A 2D solution with ambient occlusion intensity in red. A 3D render to show you where occlusion occurs and better understand the reasoning behind the red areas in the 2D solution.

Duration

This project should take 15–30 minutes to complete.

Notes

This assignment has evolved over the years, so student submissions below might vary.

@arminwidmann

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Comparing my marks on the assignment with the solution I see some slight differences especially on image 1,2 and 4

Mahfam Zohrabi

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18d

@samanthelle

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22d

I added the corrections in pink.

Aubrey Hannah

•

3mo

It was interesting looking at the difference between ambient light and direct light in this assignment. I think I understand how light and shadow behaves much better now, just by isolating certain characteristics.

Caroline Kloppert

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4mo

Morif

•

6mo

Christian Zinser

•

10mo

@doublejon

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10mo

Dedee Anderson Ganda

•

10mo

Roland Karafa

•

1yr

The one that is floating,i was unsure if there is occlusion shadow or not

Aubrey Hannah

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3mo

There's still some occlusion on objects not directly touching a surface. It's a softer tone, but it's still there.

@rfrimpong3

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2yr

I graded myself and I have question please from the notes above, is it implying that only ambient light have Occlusion shadow? Because I thought direct light can also have occlusion shadow in its scene.

Woo Joo

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1yr

I think shadows created by direct light are called "form shadow" or "cast shadow". In this assignment we look at AO, and AO refers to "Ambient Occlusion", specifically focusing on the shadows created by ambient light.

@marq777

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2yr

Lighter red are the parts I missed.

@kotka

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2yr

Not sure if I'm missing something but I found no 3D version of the worksheet, only a 2D. I see a lot of people here post a 3D version... I feel that AO is a lot easier to understand intuitively than core shadow.

@drnature

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2yr

I got confused a bit too, is this what you were looking for? found here https://www.proko.com/course-lesson/practice-simple-ao-study/downloads

Derek Adams

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2yr

Samuel Sanjaya

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2yr

My attempt and the fix after seeing the solution. I wonder why the box concave part has shadows in it? I thought the light source suppose to come from above.. Any feedbacks will be greatly appreciated..