Blender  V3.3
COM_ScreenLensDistortionOperation.h
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1 /* SPDX-License-Identifier: GPL-2.0-or-later
2  * Copyright 2011 Blender Foundation. */
3 
4 #pragma once
5 
7 #include "DNA_node_types.h"
8 
9 struct RNG;
10 
11 namespace blender::compositor {
12 
14  private:
18  SocketReader *input_program_;
19  struct RNG *rng_;
20 
21  bool fit_;
22  bool jitter_;
23 
24  float dispersion_;
25  float distortion_;
26  bool dispersion_const_;
27  bool distortion_const_;
28  bool variables_ready_;
29  float k_[3];
30  float k4_[3];
31  float dk4_[3];
32  float maxk_;
33  float sc_, cx_, cy_;
34 
35  public:
37 
38  void init_data() override;
39 
43  void execute_pixel(float output[4], int x, int y, void *data) override;
44 
48  void init_execution() override;
49 
50  void *initialize_tile_data(rcti *rect) override;
54  void deinit_execution() override;
55 
56  void set_fit(bool fit)
57  {
58  fit_ = fit;
59  }
60  void set_jitter(bool jitter)
61  {
62  jitter_ = jitter;
63  }
64 
66  void set_distortion(float distortion);
68  void set_dispersion(float dispersion);
69 
71  ReadBufferOperation *read_operation,
72  rcti *output) override;
73 
74  void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
75  void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
77  const rcti &area,
78  Span<MemoryBuffer *> inputs) override;
79 
80  private:
81  void determineUV(float result[6], float x, float y) const;
82  void update_variables(float distortion, float dispersion);
83 
84  void get_uv(const float xy[2], float uv[2]) const;
85  void distort_uv(const float uv[2], float t, float xy[2]) const;
86  bool get_delta(float r_sq, float k4, const float uv[2], float delta[2]) const;
87  void accumulate(const MemoryBuffer *buffer,
88  int a,
89  int b,
90  float r_sq,
91  const float uv[2],
92  const float delta[3][2],
93  float sum[4],
94  int count[3]) const;
95 };
96 
97 } // namespace blender::compositor
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static T sum(const btAlignedObjectArray< T > &items)
a MemoryBuffer contains access to the data of a chunk
NodeOperation contains calculation logic.
bool determine_depending_area_of_interest(rcti *input, ReadBufferOperation *read_operation, rcti *output) override
void update_memory_buffer_partial(MemoryBuffer *output, const rcti &area, Span< MemoryBuffer * > inputs) override
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override
Get input operation area being read by this operation on rendering given output area.
void execute_pixel(float output[4], int x, int y, void *data) override
void determine_canvas(const rcti &preferred_area, rcti &r_area) override
double k4_
int count
ccl_global float * buffer
ccl_global KernelShaderEvalInput ccl_global float * output
ccl_global KernelShaderEvalInput * input
static unsigned a[3]
Definition: RandGen.cpp:78
static void area(int d1, int d2, int e1, int e2, float weights[2])
static const pxr::TfToken b("b", pxr::TfToken::Immortal)
static bNodeSocketTemplate inputs[]
Definition: rand.cc:33
int xy[2]
Definition: wm_draw.c:135