Cycles: merge of cycles-x branch, a major update to the renderer

This includes much improved GPU rendering performance, viewport interactivity,
new shadow catcher, revamped sampling settings, subsurface scattering anisotropy,
new GPU volume sampling, improved PMJ sampling pattern, and more.

Some features have also been removed or changed, breaking backwards compatibility.
Including the removal of the OpenCL backend, for which alternatives are under
development.

Release notes and code docs:
https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles
https://wiki.blender.org/wiki/Source/Render/Cycles

Credits:
* Sergey Sharybin
* Brecht Van Lommel
* Patrick Mours (OptiX backend)
* Christophe Hery (subsurface scattering anisotropy)
* William Leeson (PMJ sampling pattern)
* Alaska (various fixes and tweaks)
* Thomas Dinges (various fixes)

For the full commit history, see the cycles-x branch. This squashes together
all the changes since intermediate changes would often fail building or tests.

Ref T87839, T87837, T87836
Fixes T90734, T89353, T80267, T80267, T77185, T69800

1 files changed, 0 insertions, 118 deletions

diff --git a/intern/cycles/kernel/filter/filter_features_sse.h b/intern/cycles/kernel/filter/filter_features_sse.h
deleted file mode 100644
index 59d4ace2bef..00000000000
--- a/intern/cycles/kernel/filter/filter_features_sse.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright 2011-2017 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.
- */
-
-CCL_NAMESPACE_BEGIN
-
-#define ccl_get_feature_sse(pass) load_float4(buffer + (pass)*pass_stride)
-
-/* Loop over the pixels in the range [low.x, high.x) x [low.y, high.y), 4 at a time.
- * pixel_buffer always points to the first of the 4 current pixel in the first pass.
- * x4 and y4 contain the coordinates of the four pixels, active_pixels contains a mask that's set
- * for all pixels within the window. Repeat the loop for every secondary frame if there are any. */
-#define FOR_PIXEL_WINDOW_SSE \
-  for (int frame = 0; frame < tile_info->num_frames; frame++) { \
-    pixel.z = tile_info->frames[frame]; \
-    pixel_buffer = buffer + (low.y - rect.y) * buffer_w + (low.x - rect.x) + \
-                   frame * frame_stride; \
-    float4 t4 = make_float4(pixel.z); \
-    for (pixel.y = low.y; pixel.y < high.y; pixel.y++) { \
-      float4 y4 = make_float4(pixel.y); \
-      for (pixel.x = low.x; pixel.x < high.x; pixel.x += 4, pixel_buffer += 4) { \
-        float4 x4 = make_float4(pixel.x) + make_float4(0.0f, 1.0f, 2.0f, 3.0f); \
-        int4 active_pixels = x4 < make_float4(high.x);
-
-#define END_FOR_PIXEL_WINDOW_SSE \
-  } \
-  pixel_buffer += buffer_w - (high.x - low.x); \
-  } \
-  }
-
-ccl_device_inline void filter_get_features_sse(float4 x,
-                                               float4 y,
-                                               float4 t,
-                                               int4 active_pixels,
-                                               const float *ccl_restrict buffer,
-                                               float4 *features,
-                                               bool use_time,
-                                               const float4 *ccl_restrict mean,
-                                               int pass_stride)
-{
-  int num_features = use_time ? 11 : 10;
-
-  features[0] = x;
-  features[1] = y;
-  features[2] = fabs(ccl_get_feature_sse(0));
-  features[3] = ccl_get_feature_sse(1);
-  features[4] = ccl_get_feature_sse(2);
-  features[5] = ccl_get_feature_sse(3);
-  features[6] = ccl_get_feature_sse(4);
-  features[7] = ccl_get_feature_sse(5);
-  features[8] = ccl_get_feature_sse(6);
-  features[9] = ccl_get_feature_sse(7);
-  if (use_time) {
-    features[10] = t;
-  }
-
-  if (mean) {
-    for (int i = 0; i < num_features; i++) {
-      features[i] = features[i] - mean[i];
-    }
-  }
-  for (int i = 0; i < num_features; i++) {
-    features[i] = mask(active_pixels, features[i]);
-  }
-}
-
-ccl_device_inline void filter_get_feature_scales_sse(float4 x,
-                                                     float4 y,
-                                                     float4 t,
-                                                     int4 active_pixels,
-                                                     const float *ccl_restrict buffer,
-                                                     float4 *scales,
-                                                     bool use_time,
-                                                     const float4 *ccl_restrict mean,
-                                                     int pass_stride)
-{
-  scales[0] = fabs(x - mean[0]);
-  scales[1] = fabs(y - mean[1]);
-  scales[2] = fabs(fabs(ccl_get_feature_sse(0)) - mean[2]);
-  scales[3] = sqr(ccl_get_feature_sse(1) - mean[3]) + sqr(ccl_get_feature_sse(2) - mean[4]) +
-              sqr(ccl_get_feature_sse(3) - mean[5]);
-  scales[4] = fabs(ccl_get_feature_sse(4) - mean[6]);
-  scales[5] = sqr(ccl_get_feature_sse(5) - mean[7]) + sqr(ccl_get_feature_sse(6) - mean[8]) +
-              sqr(ccl_get_feature_sse(7) - mean[9]);
-  if (use_time) {
-    scales[6] = fabs(t - mean[10]);
-  }
-
-  for (int i = 0; i < (use_time ? 7 : 6); i++)
-    scales[i] = mask(active_pixels, scales[i]);
-}
-
-ccl_device_inline void filter_calculate_scale_sse(float4 *scale, bool use_time)
-{
-  scale[0] = rcp(max(reduce_max(scale[0]), make_float4(0.01f)));
-  scale[1] = rcp(max(reduce_max(scale[1]), make_float4(0.01f)));
-  scale[2] = rcp(max(reduce_max(scale[2]), make_float4(0.01f)));
-  if (use_time) {
-    scale[10] = rcp(max(reduce_max(scale[6]), make_float4(0.01f)));
-  }
-  scale[6] = rcp(max(reduce_max(scale[4]), make_float4(0.01f)));
-  scale[7] = scale[8] = scale[9] = rcp(max(reduce_max(sqrt(scale[5])), make_float4(0.01f)));
-  scale[3] = scale[4] = scale[5] = rcp(max(reduce_max(sqrt(scale[3])), make_float4(0.01f)));
-}
-
-CCL_NAMESPACE_END