8dea06565f
This commit adds the Blackman-Harris windows function as a pixel filter to Cycles. On some cases, such as wireframes or high-frequency textures, Blackman-Harris can give subtle but noticable improvements over the Gaussian window. Also, the gaussian window was truncated too early, which degraded quality a bit, therefore the evaluation region is now three times as wide. To avoid artifacts caused by the wider curve, the filter table size is increased to 1024. Reviewers: #cycles Differential Revision: https://developer.blender.org/D1453
84 lines
1.8 KiB
C++
84 lines
1.8 KiB
C++
/*
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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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#ifndef __FILM_H__
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#define __FILM_H__
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#include "util_string.h"
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#include "util_vector.h"
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#include "kernel_types.h"
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CCL_NAMESPACE_BEGIN
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class Device;
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class DeviceScene;
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class Scene;
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typedef enum FilterType {
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FILTER_BOX,
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FILTER_GAUSSIAN,
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FILTER_BLACKMAN_HARRIS
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} FilterType;
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class Pass {
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public:
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PassType type;
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int components;
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bool filter;
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bool exposure;
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PassType divide_type;
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static void add(PassType type, vector<Pass>& passes);
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static bool equals(const vector<Pass>& A, const vector<Pass>& B);
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static bool contains(const vector<Pass>& passes, PassType);
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};
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class Film {
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public:
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float exposure;
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vector<Pass> passes;
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float pass_alpha_threshold;
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FilterType filter_type;
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float filter_width;
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size_t filter_table_offset;
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float mist_start;
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float mist_depth;
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float mist_falloff;
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bool use_light_visibility;
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bool use_sample_clamp;
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bool need_update;
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Film();
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~Film();
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void device_update(Device *device, DeviceScene *dscene, Scene *scene);
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void device_free(Device *device, DeviceScene *dscene, Scene *scene);
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bool modified(const Film& film);
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void tag_passes_update(Scene *scene, const vector<Pass>& passes_);
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void tag_update(Scene *scene);
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};
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CCL_NAMESPACE_END
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#endif /* __FILM_H__ */
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