Shade an object based on surface distance.
[Instructor] Ambient occlusion is a very powerful…and versatile effect that can be used in many circumstances.…It's original purpose to block ambient light…is no longer needed in the wonderful world of…a brute force global illumination renderer…such as Arnold.…But ambient occlusion is great for special effects…based on distance among surfaces.…In this case I'd like to employ it in a shader network…to make the recessed areas of this picture frame…darker and rougher, or less reflective.…
Picking up from the last movie,…I've already got the attribute editor,…the Arnold render view, and the node editor open.…Displaying the shader network for the standard surface…material applied to the picture frame.…It's got a bump map.…For clarity in the demonstration,…let's disable the bump effect.…Select the bump node and in the attribute editor,…set the bump depth to zero.…Also for testing, let's change up the parameters of the…AI standard surface material, select that node,…and in the attributes, set the diffuse weight…to its maximum of one,…
Author
Released
7/31/2017- Arnold rendering concepts
- Lighting with Maya and Arnold lights
- Controlling exposure
- Filtering light with Gobo
- Light attenuation with Decay
- Image-based lighting with Skydome
- Exterior daylight with Physical Sky
- Arnold Standard Surface material attributes
- Mapping material attributes
- Rendering refractions
- Mesh subdivision and displacement at render time
- Shading effects such as ambient occlusion and vertex color
- Camera effects such as fisheye and depth of field
- Animation image sequence rendering
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 5s
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Using the exercise files4m 13s
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Updating the Arnold plugin2m 45s
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1. Concepts
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Course prerequisites2m 11s
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Introducing Arnold4m 24s
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Arnold rendering concepts3m 43s
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Balancing sampling and Ray Depth10m 44s
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2. Studio Lighting
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Controlling camera exposure2m 43s
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Rigging a spot light4m 53s
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Focusing a spot light7m 40s
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Adding suffuse illumination4m 12s
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3. Natural and Environmental Lighting
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4. Materials and Mapping
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5. Rendering
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Rendering a panorama4m 17s
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Rendering an image sequence6m 27s
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Conclusion
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Next steps1m 2s
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Video: Shading with ambient occlusion