V-Ray: Control Color Bleed in Blender

1h 6mIntermediate2017-02-01

Authors

Brian Bradley

3D Artist, Business Owner

Course details

Overcome the color bleed phenomenon that can occur in global illumination renders. Brian Bradley shows you how in this course. First, Brian discusses what color bleed is and why it occurs. Then, he dives into measures you can take to control color bleed and produce physically accurate color. He explains how white balance, saturation, light, and geometry impact color bleed. He also demonstrates how you can work with object properties, channels, and other tools to prevent, contain, or limit color bleed.

Learning objectives
How light works
Reflectance
Geometry setup
White balance control
Use of problem colors
Saturation control
Single-bounce primary engines
GI multiplier control
Wrapper material
Override material
Color mapping and color bleed
V-Ray object properties
Render channels

Skills covered

V-RayChaos GroupVisualizationBlender3D AnimationRenderingMotion Graphics and VFX3D ModelingVisualization and Real-TimeAECProduct and ManufacturingAnimation and Illustration

Concepts

Introduction and Important Information

01 - Welcome
02 - What you should know before watching this course
03 - Using the exercise files
04 - Software versions in use
05 - How our test scene is set up

1. Color Bleed Basics

06 - A little bit about how light works
07 - Defining color bleed

2. Physically Accurate Color Bleed Control

08 - Controlling reflectance through color values
09 - Controlling reflectance in bitmap images
10 - How geometry setup can affect color bleed
11 - The power of the White balance control
12 - Choosing placement of problem colors

3. Global Illumination Controls

13 - The Saturation Post-processing control
14 - Single-bounce primary engines
15 - Beware the GI multiplier control
16 - Saving GI map files to disk

4. Other Color Bleed Control Options

17 - Wrapper material
18 - Override material
19 - Color mapping and color bleed
20 - V-Ray object properties
21 - Render channels setup
22 - Using render channels

Conclusion

23 - What next