Important Materials Theory | Photographic Rendering with V-Ray for SketchUp

Sign In Start Free Trial

Book Overview & Buying
Table Of Contents
Feedback & Rating

Photographic Rendering with V-Ray for SketchUp

By : Brian Bradley

3.3 (13)

Photographic Rendering with V-Ray for SketchUp

3.3 (13)

By: Brian Bradley

Overview of this book

Photographic Rendering with V-Ray for SketchUp

Photographic Rendering with V-Ray for SketchUp

Credits

Credits

About the Author

About the Author

Acknowledgement

Acknowledgement

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

Diving Straight into Photographic Rendering

Diving Straight into Photographic Rendering

What this chapter is all about

Good composition is the foundation of photographic rendering

Materials that make us believe!

Render settings for final output

Summary

Lighting an Interior Daytime Scene

Lighting an Interior Daytime Scene

Looking at our SketchUp scene

Defining our goals

The lighting workflow

Sunlight is our key light

Skylight is our fill light

Summary

Lighting an Interior Nighttime Scene Using IES Lights

Lighting an Interior Nighttime Scene Using IES Lights

Taking a look at our SketchUp file

Defining our goals

The lighting process

Starting with a blank canvas

Adding some much-needed ambience

Layering up our IES lights

Evaluating the render with all lights enabled

Previsualizing image corrections using V-Ray FrameBuffer

Summary

Lighting an Exterior Daylight Scene

Lighting an Exterior Daylight Scene

Setting up our SketchUp file

Reference and observation

The lighting process

Sunlight is the key

Filling in with skylight

Tweaking exposure

Summary

Understanding the Principles of Light Behavior

Understanding the Principles of Light Behavior

The SketchUp files

Defining our goals

How light behaves

Understanding light decay

Using color temperature

The cause of color bleeding

Summary

Creating Believable Materials

Creating Believable Materials

Getting started with our materials

Using a SketchUp material to create our diffuse floor coloring

Using the V-Ray Standard material

Creating the wall paintings using bitmaps

Art sculpts – import vismat

Your challenge

Summary

Important Materials Theory

Important Materials Theory

Defining our goals

Light and material interaction – why objects in the real world have color

How absorption, reflectance, and transmittance work

The importance of R, G, and B in the digital realm

Light and material interaction – what is reflectivity?

Light and material interaction – the transmittance effects

The importance of energy-conserving materials

What we have accomplished?

Summary

Composition and Cameras

Composition and Cameras

Defining our goals

Deciding the shot type

Aspect ratios

The requisite maximum resolution

How focal length affects composition

Setting up scene views for final shot rendering

Summary

Quality Control

Quality Control

Defining our goals

Fine-tuning scene lighting

Cleaning up our GI solution

Working with the Image sampler controls

Improving our materials

Outputting the final renders

Determining the order of quality control steps

Summary

Adding Photographic Touches in Post-production

Adding Photographic Touches in Post-production

Defining our goals

Setting up After Effects

Importing our footage

Dealing with the lighting hotspots

Boosting the floor reflections

Adding a subtle DOF to shift focus

Adding subtle relighting

Boosting the glass reflections a little

Final color corrections

Adding a subtle vignette effect

Summary

Index

Index

Customer Reviews

3.3 (13)

5 star

30.8%

4 star

15.4%

3 star

15.4%

2 star

30.8%

1 star

7.7%

Summary

We have seen that without light, we have no color as the wavelengths contained in white light and their subsequent absorption and reflection from the surface of objects in the real world is the mechanism that brings color to the world around us.

We also noted the importance of the RGB color model as regards color reproduction given that trying to recreate the entire light spectrum inside both hardware and software applications would be problematic and costly to say the least.

And very importantly, we considered some of the typical behaviors seen in real-world surfaces that need to be recreated inside our V-Ray Materials, including:

The use of realistic color values to create believable reflectance
Reflectivity and the scattering of light to produce blurred reflections
Transmissive effects, such as refraction, SSS, and translucency
Finally, the importance of energy conservation in materials so that they behave in a physically accurate manner, thus enhancing their photographic quality

In...

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Photographic Rendering with V-Ray for SketchUp

Search

Your notes and bookmarks