1 files changed, 0 insertions, 70 deletions
diff --git a/intern/cycles/util/util_math_cdf.cpp b/intern/cycles/util/util_math_cdf.cpp
deleted file mode 100644
index a58bab188ef..00000000000
--- a/intern/cycles/util/util_math_cdf.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2011-2015 Blender Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "util/util_math_cdf.h"
-
-#include "util/util_algorithm.h"
-#include "util/util_math.h"
-
-CCL_NAMESPACE_BEGIN
-
-/* Invert pre-calculated CDF function. */
-void util_cdf_invert(const int resolution,
-                     const float from,
-                     const float to,
-                     const vector<float> &cdf,
-                     const bool make_symmetric,
-                     vector<float> &inv_cdf)
-{
-  const float inv_resolution = 1.0f / (float)resolution;
-  const float range = to - from;
-  inv_cdf.resize(resolution);
-  if (make_symmetric) {
-    const int half_size = (resolution - 1) / 2;
-    for (int i = 0; i <= half_size; i++) {
-      float x = i / (float)half_size;
-      int index = upper_bound(cdf.begin(), cdf.end(), x) - cdf.begin();
-      float t;
-      if (index < cdf.size() - 1) {
-        t = (x - cdf[index]) / (cdf[index + 1] - cdf[index]);
-      }
-      else {
-        t = 0.0f;
-        index = cdf.size() - 1;
-      }
-      float y = ((index + t) / (resolution - 1)) * (2.0f * range);
-      inv_cdf[half_size + i] = 0.5f * (1.0f + y);
-      inv_cdf[half_size - i] = 0.5f * (1.0f - y);
-    }
-  }
-  else {
-    for (int i = 0; i < resolution; i++) {
-      float x = from + range * (float)i * inv_resolution;
-      int index = upper_bound(cdf.begin(), cdf.end(), x) - cdf.begin();
-      float t;
-      if (index < cdf.size() - 1) {
-        t = (x - cdf[index]) / (cdf[index + 1] - cdf[index]);
-      }
-      else {
-        t = 0.0f;
-        index = resolution;
-      }
-      inv_cdf[i] = (index + t) * inv_resolution;
-    }
-  }
-}
-
-CCL_NAMESPACE_END