Join Aaron F. Ross for an in-depth discussion in this video Gamma correction and linear workflows, part of 3ds Max: Advanced Lighting (2017).
- [Instructor] Gamma is the contrast curve of an image,…and gamma correction is very important…for photometric or linear workflows.…It's a numerical value representing the shape of that curve.…Gamma values below one increase contrast,…and values above one decrease the contrast.…One application of gamma is a way of compressing image data.…Human eyes are more sensitive to relative differences…in darker tones, and we are less sensitive…to differences in brighter tones, or highlights.…
Gamma correction takes advantage of this nonlinear response…to optimize image storage and display.…Standard image files encode more data in the blacks,…compressing the highlights, and when the image…is displayed, the gamma is decoded,…and the image contrast is restored.…A digital camera is also more sensitive…to shadow areas just like our eyes.…If we looked at that camera data in raw form…with gamma value interpreted as one,…it would look washed out.…
But image viewing and editing applications…normally interpret a standard image file…
AuthorAaron F. Ross
- Photometric lighting and gamma correction
- High dynamic range and exposure control
- Global illumination
- Exterior daylight
- Image-based lighting
- Atmospheric effects
- Geometric backdrops and self-illumination
- Hiding the background for compositing
- Interior daylight
- Studio soft lighting
- Importing photometric data
- Light and shadow exclusion
- Mapping light with Projector Map
- Lens Effects
Skill Level Advanced
3ds Max 2017 Essential Trainingwith Aaron F. Ross9h 50m Intermediate
3ds Max: Advanced Materials (2017)with Aaron F. Ross2h 34m Intermediate
2. Exterior Daylight
3. Photometric Interiors
Importing photometric data3m 48s
4. Studio Lighting and Effects
Next steps1m 8s
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