d832d993c5
These replace float3 and packed_float3 in various places in the kernel where a spectral color representation will be used in the future. That representation will require more than 3 channels and conversion to from/RGB. The kernel code was refactored to remove the assumption that Spectrum and RGB colors are the same thing. There are no functional changes, Spectrum is still a float3 and the conversion functions are no-ops. Differential Revision: https://developer.blender.org/D15535
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Adapted from Open Shading Language
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* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
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* All Rights Reserved.
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*
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* Modifications Copyright 2011-2022 Blender Foundation. */
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#include <OpenImageIO/fmath.h>
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#include <OSL/genclosure.h>
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#include "kernel/device/cpu/compat.h"
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#include "kernel/osl/closures.h"
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// clang-format off
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#include "kernel/device/cpu/compat.h"
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#include "kernel/device/cpu/globals.h"
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#include "kernel/types.h"
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#include "kernel/closure/alloc.h"
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#include "kernel/closure/bsdf_diffuse_ramp.h"
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#include "kernel/closure/bsdf_util.h"
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#include "kernel/util/color.h"
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// clang-format on
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CCL_NAMESPACE_BEGIN
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using namespace OSL;
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class DiffuseRampClosure : public CBSDFClosure {
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public:
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DiffuseRampBsdf params;
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Color3 colors[8];
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void setup(ShaderData *sd, uint32_t /* path_flag */, float3 weight)
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{
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params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N);
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DiffuseRampBsdf *bsdf = (DiffuseRampBsdf *)bsdf_alloc_osl(
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sd, sizeof(DiffuseRampBsdf), rgb_to_spectrum(weight), ¶ms);
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if (bsdf) {
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bsdf->colors = (float3 *)closure_alloc_extra(sd, sizeof(float3) * 8);
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if (bsdf->colors) {
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for (int i = 0; i < 8; i++)
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bsdf->colors[i] = TO_FLOAT3(colors[i]);
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sd->flag |= bsdf_diffuse_ramp_setup(bsdf);
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}
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}
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}
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};
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ClosureParam *closure_bsdf_diffuse_ramp_params()
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{
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static ClosureParam params[] = {CLOSURE_FLOAT3_PARAM(DiffuseRampClosure, params.N),
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CLOSURE_COLOR_ARRAY_PARAM(DiffuseRampClosure, colors, 8),
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CLOSURE_STRING_KEYPARAM(DiffuseRampClosure, label, "label"),
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CLOSURE_FINISH_PARAM(DiffuseRampClosure)};
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return params;
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}
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CCLOSURE_PREPARE(closure_bsdf_diffuse_ramp_prepare, DiffuseRampClosure)
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CCL_NAMESPACE_END
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