Document the SDF spread further.
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* the result clamped to the 8-bit range [0..255]. Therefore, 'spread'
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* the result clamped to the 8-bit range [0..255]. Therefore, 'spread'
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* is also the maximum euclidean distance from the edge after which the
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* is also the maximum euclidean distance from the edge after which the
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* values are clamped. The spread is specified in pixels with the
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* values are clamped. The spread is specified in pixels with the
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* default value of 8.
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* default value of 8. For accurate SDF texture mapping (interpolation),
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* the spread should be large enough to accommodate the target grid unit.
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*
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*
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* @example:
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* @example:
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* The following example code demonstrates how to set the SDF spread
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* The following example code demonstrates how to set the SDF spread
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