[Bf-blender-cvs] [553ec98] master: Revert "Cycles: Implement Mitchell-Netravali pixel filter"
Sergey Sharybin
noreply at git.blender.org
Wed Oct 22 18:55:23 CEST 2014
Commit: 553ec988e7a44046c86ec1528c357269e4f23f7f
Author: Sergey Sharybin
Date: Wed Oct 22 22:52:04 2014 +0600
Branches: master
https://developer.blender.org/rB553ec988e7a44046c86ec1528c357269e4f23f7f
Revert "Cycles: Implement Mitchell-Netravali pixel filter"
As it appears we can't really use mitchell filter together with the
current filter importance sampling,
This reverts commit 742911314322e5dae3a07469d0ca53b61427f978.
===================================================================
M intern/cycles/blender/addon/properties.py
M intern/cycles/render/film.cpp
M intern/cycles/render/film.h
===================================================================
diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index 7524fe3..05a6f70 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -54,7 +54,6 @@ enum_bvh_types = (
enum_filter_types = (
('BOX', "Box", "Box filter"),
('GAUSSIAN', "Gaussian", "Gaussian filter"),
- ('MITCHELL', "Mitchell-Netravali", "Mitchell-Netravali filter"),
)
enum_aperture_types = (
diff --git a/intern/cycles/render/film.cpp b/intern/cycles/render/film.cpp
index 76a92d3..19f959d 100644
--- a/intern/cycles/render/film.cpp
+++ b/intern/cycles/render/film.cpp
@@ -198,29 +198,6 @@ static float filter_func_gaussian(float v, float width)
return expf(-2.0f*v*v);
}
-static float filter_func_mitchell(float v, float width)
-{
- (void)width; /* Ignored. */
-
- /* B = 1, C = 0 - cubic B-spline */
- /* B = 1/3, C = 1/3 - recommended */
- /* B = 0, C = 1/2 - Catmull-Rom spline */
- const float B = 1.0f / 3.0f;
- const float C = 1.0f / 3.0f;
-
- const float ax = fabsf(v);
- if (ax < 1.0f) {
- return ((12.0f - 9.0f * B - 6 * C) * ax * ax * ax +
- (-18.0f + 12.0f * B + 6.0f * C) * ax * ax +
- (6.0f - 2.0f * B)) / 6.0f;
- } else if ((ax >= 1.0f) && (ax < 2.0f)) {
- return ((-B - 6.0f * C) * ax * ax * ax +
- (6.0f * B + 30.0f * C) * ax * ax + (-12.0f * B - 48.0f * C) *
- ax + (8.0f * B + 24.0f * C)) / 6.0f;
- }
- return 0.0f;
-}
-
static vector<float> filter_table(FilterType type, float width)
{
const int filter_table_size = FILTER_TABLE_SIZE-1;
@@ -236,9 +213,6 @@ static vector<float> filter_table(FilterType type, float width)
case FILTER_GAUSSIAN:
filter_func = filter_func_gaussian;
break;
- case FILTER_MITCHELL:
- filter_func = filter_func_mitchell;
- break;
default:
assert(0);
}
diff --git a/intern/cycles/render/film.h b/intern/cycles/render/film.h
index 31cc769..cc7183b 100644
--- a/intern/cycles/render/film.h
+++ b/intern/cycles/render/film.h
@@ -30,8 +30,7 @@ class Scene;
typedef enum FilterType {
FILTER_BOX,
- FILTER_GAUSSIAN,
- FILTER_MITCHELL,
+ FILTER_GAUSSIAN
} FilterType;
class Pass {
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