V-Ray: Control Color Bleed in Blender

Learn how to limit, contain, or prevent color bleed when working with global illumination renders.

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.

Introduction and Important Information

• Welcome
• What you should know before watching this course
• Using the exercise files
• Software versions in use
• How our test scene is set up

1. Color Bleed Basics

• A little bit about how light works
• Defining color bleed

2. Physically Accurate Color Bleed Control

• Controlling reflectance through color values
• Controlling reflectance in bitmap images
• How geometry setup can affect color bleed
• The power of the White balance control
• Choosing placement of problem colors

3. Global Illumination Controls

• The Saturation Post-processing control
• Single-bounce primary engines
• Beware the GI multiplier control
• Saving GI map files to disk

4. Other Color Bleed Control Options

• Wrapper material
• Override material
• Color mapping and color bleed
• V-Ray object properties
• Render channels setup
• Using render channels

Conclusion

• What next?