Join Aaron F. Ross for an in-depth discussion in this video Understanding image-based lighting, part of Creating Product Shots in Maya.
…Image based lighting or IBL is a technique for lighting…a 3D scene using a special type of image file.…This is known as a high dynamic range or HDR file.…Instead of conventional 3D lights the scene is illuminated…by the brightness of pixels in an environment map.…The image is usually captured from a…real-world location, and because of this, the 3D…rendered objects can be made to look as if they're actually in that real environment.…Image-based lighting requires that the environment map have a…greater range of brightness values than a standard image.…A high dynamic range image can capture all the…possible brightness values that the human eye can see.…
The dynamic range of a signal is the ratio between its highest and lowest values.…And for light it's also expressed as contrast ratio.…The human eye has a contrast ratio of about a million to one.…But a standard camera or an ordinary image file…has a contrast ratio of about a thousand to one.…Contrast ratio can also be expressed in terms of F-stops.…The F number is a setting on a real camera…
AuthorAaron F. Ross
Want to learn how to create the same effect with 3ds Max? Check out Creating Product Shots in 3ds Max.
- Understanding the scene layout, hierarchy, and display layers
- Working with mia_material_x
- Creating and optimizing mental ray area lights
- Generating reflections with self-illuminated white cards
- Providing indirect illumination with Final Gathering
- Image-based lighting with high dynamic range files
- Rendering to a 32-bit file format
- Saving material and lighting components to render passes
- Adding ambient occlusion
- Layering and color correction in After Effects
Skill Level Intermediate
Creating Shader Networks in Maya and mental raywith Aaron F. Ross5h 28m Intermediate
Maya: Lighting and Rendering with mental raywith Eric Keller4h 56m Intermediate
1. Laying Out the Scene
2. Studio Lighting
3. Shading Models with Materials
4. Image-Based Lighting
5. Rendering and Color Correction
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