1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Adapted from Open Shading Language with this license:
*
* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
* All Rights Reserved.
*
* Modifications Copyright 2011, Blender Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Sony Pictures Imageworks nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <OpenImageIO/fmath.h>
#include <OSL/genclosure.h>
#include "kernel_compat_cpu.h"
#include "osl_closures.h"
#include "kernel_types.h"
#include "kernel_montecarlo.h"
#include "closure/bsdf_diffuse_ramp.h"
CCL_NAMESPACE_BEGIN
using namespace OSL;
class DiffuseRampClosure : public CBSDFClosure {
public:
Color3 colors[8];
float3 fcolors[8];
DiffuseRampClosure() : CBSDFClosure(LABEL_DIFFUSE)
{}
void setup()
{
sc.prim = this;
m_shaderdata_flag = bsdf_diffuse_ramp_setup(&sc);
for(int i = 0; i < 8; i++)
fcolors[i] = TO_FLOAT3(colors[i]);
}
void blur(float roughness)
{
bsdf_diffuse_ramp_blur(&sc, roughness);
}
float3 eval_reflect(const float3 &omega_out, const float3 &omega_in, float& pdf) const
{
return bsdf_diffuse_ramp_eval_reflect(&sc, fcolors, omega_out, omega_in, &pdf);
}
float3 eval_transmit(const float3 &omega_out, const float3 &omega_in, float& pdf) const
{
return bsdf_diffuse_ramp_eval_transmit(&sc, fcolors, omega_out, omega_in, &pdf);
}
int sample(const float3 &Ng,
const float3 &omega_out, const float3 &domega_out_dx, const float3 &domega_out_dy,
float randu, float randv,
float3 &omega_in, float3 &domega_in_dx, float3 &domega_in_dy,
float &pdf, float3 &eval) const
{
return bsdf_diffuse_ramp_sample(&sc, fcolors, Ng, omega_out, domega_out_dx, domega_out_dy,
randu, randv, &eval, &omega_in, &domega_in_dx, &domega_in_dy, &pdf);
}
};
ClosureParam *closure_bsdf_diffuse_ramp_params()
{
static ClosureParam params[] = {
CLOSURE_FLOAT3_PARAM(DiffuseRampClosure, sc.N),
CLOSURE_COLOR_ARRAY_PARAM(DiffuseRampClosure, colors, 8),
CLOSURE_STRING_KEYPARAM(DiffuseRampClosure, label, "label"),
CLOSURE_FINISH_PARAM(DiffuseRampClosure)
};
return params;
}
CCLOSURE_PREPARE(closure_bsdf_diffuse_ramp_prepare, DiffuseRampClosure)
CCL_NAMESPACE_END
|
