Join Mark Lefitz for an in-depth discussion in this video Examining how the HDRI was created, part of Photorealistic Lighting with Maya and Nuke.
Let's take a look at how our HDRI was created.…For our shoot, we used a standard, non-full frame Canon 7D DSLR,…keeping in mind that full frame DSLRs are sometimes cost-prohibitive.…Because we were using a DSLR with a smaller sensor, we therefore cannot…accommodate the use of a fisheye lens.…We can, however, use a rectilinear wide-angle lens.…This just means we have to take more pictures to cover the gaps that would…normally be covered using a wider angle lens.…
One of the side benefits of using a normal lens is that more stitching software…supports normal lenses.…On our 7D, what we used was a 10-20 mm extra wide-angle lens.…Since the 7D has a cropped frame, a crop factor of 1.6 has to be taken…into consideration.…Therefore, the focal length was set to around 10 mm, giving us the equivalent of…a 15 mm lens on a full frame camera.…Also, since our 7D can only auto-bracket three total stops, we manually…bracketed seven full stops;…three stops up, three stops down, and one stop in the middle.…
Mounting the camera on a tripod, we shot a full circle taking care to create a…
- Understanding image-based lighting
- Analyzing and color correcting the background plate
- Creating a 3D camera to match the plate
- Lighting with low-quality settings and proxies
- Setting light samples
- Setting up render passes
- Rendering mattes ground shadow, and occlusions passes
- Adding gamma correction in Nuke
- Adding the object to the plate and rendering the final composite
- Retouching the composite using Photoshop
Skill Level Intermediate
Lighting and Rendering with mental ray in Mayawith Eric Keller4h 56m Intermediate
Creating Textures and Shaders in Mayawith Eric Keller3h 30m Intermediate
1. Image-Based Lighting
Correcting the HDRI5m 22s
2. Asset Integration
4. mental ray Rendering
5. Creating Secondary Passes
6. Compositing the Rendered Passes in Nuke
7. Final Touch-Ups in Photoshop
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