REFLECTLEVEL |
THE BOX'S MAIN HELP: This is the current level in the refraction tree. Primary rays are at level 0. The last level is the refraction_depth minus one. A shader may increment, decrement or reset this level to circumvent the restrictions imposed by the trace depth state variable. LEV (output): This is the current level in the refraction tree. Primary rays are at level 0. The last level is the refraction_depth minus one. A shader may increment, decrement or reset this level to circumvent the restrictions imposed by the trace depth state variable. |
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