Example 1: Color mapping modes

Example 2: Linear Workflow

 

Example 1: Color mapping modes

This example demonstrates the differences between the color mapping modes:

 

Note: the Sibenik Cathedral model is created by Marko Dabrovic (http://www.rna.hr) and is one of the models for the CGTechniques Radiosity competition.

 

Linear color mapping
Exponential color mapping
HSV exponential color mapping
Linear color mapping
Exponential color mapping
HSV exponential color mapping

 

As visible in the above images, the Linear mapping method clamps bright colors to white, causing bright parts of the image to appear "burnt out". Both the Exponential and HSV exponential modes avoid this problem. While the Exponential mode tends to wash out the colors and desaturate them, the HSV exponential mode preserves the color hue and saturation.

 

 

Example 2: Linear Work Flow

This example shows the same image rendered with 3 different settings for Gamma and Liner Workflow.

 

 

Gamma 1 Linear Workflow - off
Gamma 2.2 Linear Workflow - off
Gamma 2.2 Linear Workflow - on
Gamma = 1; Linear Workflow = Off
Gamma = 2.2; Linear Workflow = Off
Gamma = 2.2; Linear Workflow = On