Gamma v.s. Tone Mapping

Many people might be confused with Gamma correction and HDR tone mapping.
To keep things simple, we can have a comparison here:

Gamma
1. non-linear curve
2. used for remapping the intensity of of color values of LDR images
3. remap range: 0~1 --- > 0~1

Tone Mapping
1. non-linear curve
2. used for remapping the intensity of of color values of both HDR images and LDR images
3. remap range: 0~[value>1] --- > 0~1;
0~1 --- > 0~1

Light Profiles

Light profiles are generated by measuring emitted light at the grid points of a grid placed around the light for any direction.

Maya supports two industrial standards:
IES - international standard
Eulumdat - European format
Example:

First post

I decided to have a blog space dedicating to my personal cg exploring journey. It should help myself keep tracking things that are going on around and hopefully share them with peopele have the same interests.