Improved Smudge 3D Quality
Sphinx.
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Here is a simplified and improved way of using the Smudge component for volumetric extrusion. The example rendering is based on the Spherical Previewer.
Instead of extruding the actual bump / surface / ?? material maps, I transform the coordinate space. Since we only extrude in one direction (vertical), we can let the horizontal space remain procedural. This alone is a 50% improvement in rendering quality. Moreover since we are transforming coordinate space, it makes sense to use the build-in anti-alias and lower the Density parameter a little (somewhere btwn 95-99, depending on rendering context). I.e. we don't risk blurring the sources or flattening (the wrapping effect) the bump map. Finally since we transform the space, we can reuse the result for as many maps we want. Thus only one Smudge is required. Feel free to adapt this method in your 2.5D "tracers"  Spherical Object.ffxml Njyldgarkn sample cache! |
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| Posted: August 5, 2012 5:02 am | ||
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Sphinx.
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Here is an example rendering. Notice the crisp edges, the lack of extrusion "banding", nice anti-aliasing and non-flattened look  Njyldgarkn sample cache! |
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| Posted: August 5, 2012 5:05 am | ||
SpaceRay
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Thanks very much for improving on this topic, I will try it and see how it works.
Nice example you have done, great textures and cool |
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| Posted: August 5, 2012 5:06 am | ||
Indigo Ray
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Good idea, and nice result! It's a small step to add other maps.  "Time flies like an arrow; Fruit flies like a banana." -Groucho Marx |
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| Posted: August 5, 2012 8:56 am | ||
ThreeDee
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Brilliant -- massive improvement in image quality!
I assume this is also faster since the (likely) most calculation-intensive step is only done once. |
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| Posted: August 5, 2012 4:34 pm | ||
Sharandra
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I just noticed that the sphere doesn´t seem to be really round. Is there a way to fix that? | |
| Posted: March 13, 2013 7:43 pm | ||
| Burt | Awesome. Have to try this on a couple of filters -thanks. | |
| Posted: March 13, 2013 10:31 pm | ||
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