forked from bartvdbraak/blender
b980cd163a
The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
59 lines
2.0 KiB
Plaintext
59 lines
2.0 KiB
Plaintext
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "stdcycles.h"
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float safe_divide(float a, float b)
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{
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return (b != 0.0) ? a / b : 0.0;
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}
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float smootherstep(float edge0, float edge1, float x)
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{
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float t = clamp(safe_divide((x - edge0), (edge1 - edge0)), 0.0, 1.0);
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return t * t * t * (t * (t * 6.0 - 15.0) + 10.0);
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}
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shader node_map_range(string range_type = "linear",
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float Value = 1.0,
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float FromMin = 0.0,
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float FromMax = 1.0,
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float ToMin = 0.0,
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float ToMax = 1.0,
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float Steps = 4.0,
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output float Result = 0.0)
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{
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if (FromMax != FromMin) {
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float Factor = Value;
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if (range_type == "stepped") {
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Factor = (Value - FromMin) / (FromMax - FromMin);
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Factor = (Steps > 0) ? floor(Factor * (Steps + 1.0)) / Steps : 0.0;
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}
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else if (range_type == "smoothstep") {
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Factor = (FromMin > FromMax) ? 1.0 - smoothstep(FromMax, FromMin, Value) :
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smoothstep(FromMin, FromMax, Value);
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}
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else if (range_type == "smootherstep") {
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Factor = (FromMin > FromMax) ? 1.0 - smootherstep(FromMax, FromMin, Value) :
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smootherstep(FromMin, FromMax, Value);
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}
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else {
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Factor = (Value - FromMin) / (FromMax - FromMin);
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}
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Result = ToMin + Factor * (ToMax - ToMin);
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}
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}
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