Apply OpenSubdiv Catmull-Clark smoothing.
- [Instructor] The Arnold attributes…in an object shape node make it easy…to apply subdivision surface smoothing at render time,…and that's helpful in situations such as this…where I've got a low level of detail table cloth…that needs to be smoothed out.…And the beauty of Arnold is that we can adaptively…adjust the subdivision based upon the curvature…or the edge length of the object.…I've already got the Arnold render view open…and the AI utility shader applied to the tablecloth…and it's rendering in polygon wireframe mode.…
Select the tablecloth, and let's open up its attributes…with Control + A.…And in the tablecloth shape mesh node,…open the Arnold section.…Scroll down a bit, and open the subdivision section.…And it's turned off by default.…The type is none.…Let's see what we can do here.…Set this to linear,…and now it's just simply dividing each polygon…into four polygons.…And it's not performing any smoothing.…
Set the type to catclark or catmull clark…and now we've got the open subdiv algorithm.…We can increase the number of iterations here to two,…
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
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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: Smooth mesh subdivisions at render time