forked from bartvdbraak/blender
Cycles / Wavelength to RGB node:
* Added a node to convert wavelength (in nanometer, from 380nm to 780nm) to RGB values. This can be useful to match real world colors easier. Example render: http://www.pasteall.org/pic/show.php?id=53202 ToDo: * Move some functions into an util file, maybe a common util_color.h or so. * Test GPU, unfortunately sm_21 doesn't work for me yet.
This commit is contained in:
parent
cca324e468
commit
cf359f6c7f
@ -397,6 +397,9 @@ static ShaderNode *add_node(Scene *scene, BL::BlendData b_data, BL::Scene b_scen
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wire->use_pixel_size = b_wireframe_node.use_pixel_size();
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wire->use_pixel_size = b_wireframe_node.use_pixel_size();
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node = wire;
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node = wire;
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}
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}
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else if (b_node.is_a(&RNA_ShaderNodeWavelength)) {
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node = new WavelengthNode();
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}
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else if (b_node.is_a(&RNA_ShaderNodeLightPath)) {
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else if (b_node.is_a(&RNA_ShaderNodeLightPath)) {
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node = new LightPathNode();
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node = new LightPathNode();
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}
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}
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@ -80,6 +80,7 @@ set(SRC_SVM_HEADERS
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svm/svm_displace.h
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svm/svm_displace.h
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svm/svm_fresnel.h
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svm/svm_fresnel.h
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svm/svm_wireframe.h
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svm/svm_wireframe.h
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svm/svm_wavelength.h
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svm/svm_gamma.h
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svm/svm_gamma.h
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svm/svm_brightness.h
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svm/svm_brightness.h
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svm/svm_geometry.h
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svm/svm_geometry.h
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@ -67,6 +67,7 @@ set(SRC_OSL
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node_velvet_bsdf.osl
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node_velvet_bsdf.osl
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node_voronoi_texture.osl
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node_voronoi_texture.osl
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node_ward_bsdf.osl
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node_ward_bsdf.osl
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node_wavelength.osl
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node_wave_texture.osl
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node_wave_texture.osl
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node_wireframe.osl
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node_wireframe.osl
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)
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)
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27
intern/cycles/kernel/shaders/node_wavelength.osl
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27
intern/cycles/kernel/shaders/node_wavelength.osl
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@ -0,0 +1,27 @@
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/*
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* Copyright 2013, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "stdosl.h"
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shader node_wavelength(
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float Wavelength = 500.0,
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output color Color = 0.0)
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{
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Color = wavelength_color(Wavelength);
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}
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@ -152,6 +152,7 @@ CCL_NAMESPACE_END
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#include "svm_displace.h"
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#include "svm_displace.h"
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#include "svm_fresnel.h"
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#include "svm_fresnel.h"
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#include "svm_wireframe.h"
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#include "svm_wireframe.h"
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#include "svm_wavelength.h"
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#include "svm_camera.h"
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#include "svm_camera.h"
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#include "svm_geometry.h"
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#include "svm_geometry.h"
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#include "svm_hsv.h"
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#include "svm_hsv.h"
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@ -362,6 +363,9 @@ __device_noinline void svm_eval_nodes(KernelGlobals *kg, ShaderData *sd, ShaderT
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svm_node_wireframe(kg, sd, stack, node.y, node.z, node.w);
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svm_node_wireframe(kg, sd, stack, node.y, node.z, node.w);
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break;
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break;
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#ifdef __EXTRA_NODES__
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#ifdef __EXTRA_NODES__
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case NODE_WAVELENGTH:
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svm_node_wavelength(sd, stack, node.y, node.z);
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break;
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case NODE_SET_DISPLACEMENT:
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case NODE_SET_DISPLACEMENT:
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svm_node_set_displacement(sd, stack, node.y);
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svm_node_set_displacement(sd, stack, node.y);
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break;
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break;
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@ -52,6 +52,7 @@ typedef enum NodeType {
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NODE_CONVERT,
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NODE_CONVERT,
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NODE_FRESNEL,
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NODE_FRESNEL,
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NODE_WIREFRAME,
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NODE_WIREFRAME,
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NODE_WAVELENGTH,
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NODE_EMISSION_WEIGHT,
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NODE_EMISSION_WEIGHT,
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NODE_TEX_GRADIENT,
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NODE_TEX_GRADIENT,
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NODE_TEX_VORONOI,
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NODE_TEX_VORONOI,
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113
intern/cycles/kernel/svm/svm_wavelength.h
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113
intern/cycles/kernel/svm/svm_wavelength.h
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@ -0,0 +1,113 @@
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/*
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* Adapted from Open Shading Language with this license:
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*
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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 2013, Blender Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Sony Pictures Imageworks nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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CCL_NAMESPACE_BEGIN
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/* Wavelength to RGB */
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/* ToDo: Move these 2 functions to an util file */
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__device float3 xyz_to_rgb_wave(float x, float y, float z)
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{
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return make_float3(3.240479f * x + -1.537150f * y + -0.498535f * z,
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-0.969256f * x + 1.875991f * y + 0.041556f * z,
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0.055648f * x + -0.204043f * y + 1.057311f * z);
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}
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__device float3 wavelength_lerp(const float3 a, const float3 b, float t)
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{
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return (a * (1.0f - t) + b * t);
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}
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__device void svm_node_wavelength(ShaderData *sd, float *stack, uint wavelength, uint color_out)
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{
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// CIE colour matching functions xBar, yBar, and zBar for
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// wavelengths from 380 through 780 nanometers, every 5
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// nanometers. For a wavelength lambda in this range:
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// cie_colour_match[(lambda - 380) / 5][0] = xBar
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// cie_colour_match[(lambda - 380) / 5][1] = yBar
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// cie_colour_match[(lambda - 380) / 5][2] = zBar
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float cie_colour_match[81][3] = {
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{0.0014,0.0000,0.0065}, {0.0022,0.0001,0.0105}, {0.0042,0.0001,0.0201},
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{0.0076,0.0002,0.0362}, {0.0143,0.0004,0.0679}, {0.0232,0.0006,0.1102},
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{0.0435,0.0012,0.2074}, {0.0776,0.0022,0.3713}, {0.1344,0.0040,0.6456},
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{0.2148,0.0073,1.0391}, {0.2839,0.0116,1.3856}, {0.3285,0.0168,1.6230},
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{0.3483,0.0230,1.7471}, {0.3481,0.0298,1.7826}, {0.3362,0.0380,1.7721},
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{0.3187,0.0480,1.7441}, {0.2908,0.0600,1.6692}, {0.2511,0.0739,1.5281},
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{0.1954,0.0910,1.2876}, {0.1421,0.1126,1.0419}, {0.0956,0.1390,0.8130},
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{0.0580,0.1693,0.6162}, {0.0320,0.2080,0.4652}, {0.0147,0.2586,0.3533},
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{0.0049,0.3230,0.2720}, {0.0024,0.4073,0.2123}, {0.0093,0.5030,0.1582},
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{0.0291,0.6082,0.1117}, {0.0633,0.7100,0.0782}, {0.1096,0.7932,0.0573},
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{0.1655,0.8620,0.0422}, {0.2257,0.9149,0.0298}, {0.2904,0.9540,0.0203},
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{0.3597,0.9803,0.0134}, {0.4334,0.9950,0.0087}, {0.5121,1.0000,0.0057},
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{0.5945,0.9950,0.0039}, {0.6784,0.9786,0.0027}, {0.7621,0.9520,0.0021},
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{0.8425,0.9154,0.0018}, {0.9163,0.8700,0.0017}, {0.9786,0.8163,0.0014},
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{1.0263,0.7570,0.0011}, {1.0567,0.6949,0.0010}, {1.0622,0.6310,0.0008},
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{1.0456,0.5668,0.0006}, {1.0026,0.5030,0.0003}, {0.9384,0.4412,0.0002},
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{0.8544,0.3810,0.0002}, {0.7514,0.3210,0.0001}, {0.6424,0.2650,0.0000},
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{0.5419,0.2170,0.0000}, {0.4479,0.1750,0.0000}, {0.3608,0.1382,0.0000},
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{0.2835,0.1070,0.0000}, {0.2187,0.0816,0.0000}, {0.1649,0.0610,0.0000},
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{0.1212,0.0446,0.0000}, {0.0874,0.0320,0.0000}, {0.0636,0.0232,0.0000},
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{0.0468,0.0170,0.0000}, {0.0329,0.0119,0.0000}, {0.0227,0.0082,0.0000},
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{0.0158,0.0057,0.0000}, {0.0114,0.0041,0.0000}, {0.0081,0.0029,0.0000},
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{0.0058,0.0021,0.0000}, {0.0041,0.0015,0.0000}, {0.0029,0.0010,0.0000},
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{0.0020,0.0007,0.0000}, {0.0014,0.0005,0.0000}, {0.0010,0.0004,0.0000},
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{0.0007,0.0002,0.0000}, {0.0005,0.0002,0.0000}, {0.0003,0.0001,0.0000},
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{0.0002,0.0001,0.0000}, {0.0002,0.0001,0.0000}, {0.0001,0.0000,0.0000},
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{0.0001,0.0000,0.0000}, {0.0001,0.0000,0.0000}, {0.0000,0.0000,0.0000}
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};
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float lambda_nm = stack_load_float(stack, wavelength);
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float3 rgb;
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float ii = (lambda_nm-380.0f) / 5.0f; // scaled 0..80
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int i = float_to_int(ii);
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if (i < 0 || i >= 80) {
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rgb = make_float3(0.0f, 0.0f, 0.0f);
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}
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else {
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ii -= i;
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float *c = cie_colour_match[i];
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rgb = wavelength_lerp(make_float3(c[0], c[1], c[2]), make_float3(c[3], c[4], c[5]), ii);
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}
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rgb = xyz_to_rgb_wave(rgb.x, rgb.y, rgb.z);
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rgb *= 1.0/2.52; // Empirical scale from lg to make all comps <= 1
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/* Clamp to Zero if values are smaller */
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rgb = max(rgb, make_float3(0.0f, 0.0f, 0.0f));
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if(stack_valid(color_out))
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stack_store_float3(stack, color_out, rgb);
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}
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CCL_NAMESPACE_END
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@ -2953,6 +2953,30 @@ void WireframeNode::compile(OSLCompiler& compiler)
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compiler.add(this, "node_wireframe");
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compiler.add(this, "node_wireframe");
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}
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}
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/* Wavelength */
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WavelengthNode::WavelengthNode()
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: ShaderNode("Wavelength")
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{
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add_input("Wavelength", SHADER_SOCKET_FLOAT, 500.0f);
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add_output("Color", SHADER_SOCKET_COLOR);
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}
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void WavelengthNode::compile(SVMCompiler& compiler)
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{
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ShaderInput *wavelength_in = input("Wavelength");
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ShaderOutput *color_out = output("Color");
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compiler.stack_assign(wavelength_in);
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compiler.stack_assign(color_out);
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compiler.add_node(NODE_WAVELENGTH, wavelength_in->stack_offset, color_out->stack_offset, NULL);
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}
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void WavelengthNode::compile(OSLCompiler& compiler)
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{
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compiler.add(this, "node_wavelength");
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}
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/* Output */
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/* Output */
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OutputNode::OutputNode()
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OutputNode::OutputNode()
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@ -457,6 +457,11 @@ public:
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bool use_pixel_size;
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bool use_pixel_size;
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};
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};
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class WavelengthNode : public ShaderNode {
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public:
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SHADER_NODE_CLASS(WavelengthNode)
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};
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class MathNode : public ShaderNode {
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class MathNode : public ShaderNode {
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public:
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public:
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SHADER_NODE_CLASS(MathNode)
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SHADER_NODE_CLASS(MathNode)
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@ -218,6 +218,7 @@ shader_node_categories = [
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NodeItem("ShaderNodeVectorMath"),
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NodeItem("ShaderNodeVectorMath"),
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NodeItem("ShaderNodeSeparateRGB"),
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NodeItem("ShaderNodeSeparateRGB"),
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NodeItem("ShaderNodeCombineRGB"),
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NodeItem("ShaderNodeCombineRGB"),
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NodeItem("ShaderNodeWavelength"),
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]),
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]),
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ShaderNewNodeCategory("SH_NEW_SCRIPT", "Script", items=[
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ShaderNewNodeCategory("SH_NEW_SCRIPT", "Script", items=[
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NodeItem("ShaderNodeScript"),
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NodeItem("ShaderNodeScript"),
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@ -741,6 +741,7 @@ struct ShadeResult;
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#define SH_NODE_SUBSURFACE_SCATTERING 177
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#define SH_NODE_SUBSURFACE_SCATTERING 177
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#define SH_NODE_WIREFRAME 178
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#define SH_NODE_WIREFRAME 178
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#define SH_NODE_BSDF_TOON 179
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#define SH_NODE_BSDF_TOON 179
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#define SH_NODE_WAVELENGTH 180
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/* custom defines options for Material node */
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/* custom defines options for Material node */
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#define SH_NODE_MAT_DIFF 1
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#define SH_NODE_MAT_DIFF 1
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@ -3399,6 +3399,7 @@ static void registerShaderNodes(void)
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register_node_type_sh_value();
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register_node_type_sh_value();
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register_node_type_sh_rgb();
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register_node_type_sh_rgb();
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register_node_type_sh_wireframe();
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register_node_type_sh_wireframe();
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register_node_type_sh_wavelength();
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register_node_type_sh_mix_rgb();
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register_node_type_sh_mix_rgb();
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register_node_type_sh_valtorgb();
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register_node_type_sh_valtorgb();
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register_node_type_sh_rgbtobw();
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register_node_type_sh_rgbtobw();
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@ -145,6 +145,7 @@ set(SRC
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shader/nodes/node_shader_valToRgb.c
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shader/nodes/node_shader_valToRgb.c
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shader/nodes/node_shader_value.c
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shader/nodes/node_shader_value.c
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shader/nodes/node_shader_wireframe.c
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shader/nodes/node_shader_wireframe.c
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shader/nodes/node_shader_wavelength.c
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shader/nodes/node_shader_vectMath.c
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shader/nodes/node_shader_vectMath.c
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shader/nodes/node_shader_add_shader.c
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shader/nodes/node_shader_add_shader.c
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shader/nodes/node_shader_ambient_occlusion.c
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shader/nodes/node_shader_ambient_occlusion.c
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@ -80,6 +80,7 @@ void register_node_type_sh_light_falloff(void);
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void register_node_type_sh_object_info(void);
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void register_node_type_sh_object_info(void);
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||||||
void register_node_type_sh_fresnel(void);
|
void register_node_type_sh_fresnel(void);
|
||||||
void register_node_type_sh_wireframe(void);
|
void register_node_type_sh_wireframe(void);
|
||||||
|
void register_node_type_sh_wavelength(void);
|
||||||
void register_node_type_sh_layer_weight(void);
|
void register_node_type_sh_layer_weight(void);
|
||||||
void register_node_type_sh_tex_coord(void);
|
void register_node_type_sh_tex_coord(void);
|
||||||
void register_node_type_sh_particle_info(void);
|
void register_node_type_sh_particle_info(void);
|
||||||
|
@ -96,6 +96,7 @@ DefNode( ShaderNode, SH_NODE_OBJECT_INFO, 0, "OB
|
|||||||
DefNode( ShaderNode, SH_NODE_PARTICLE_INFO, 0, "PARTICLE_INFO", ParticleInfo, "Particle Info", "" )
|
DefNode( ShaderNode, SH_NODE_PARTICLE_INFO, 0, "PARTICLE_INFO", ParticleInfo, "Particle Info", "" )
|
||||||
DefNode( ShaderNode, SH_NODE_HAIR_INFO, 0, "HAIR_INFO", HairInfo, "Hair Info", "" )
|
DefNode( ShaderNode, SH_NODE_HAIR_INFO, 0, "HAIR_INFO", HairInfo, "Hair Info", "" )
|
||||||
DefNode( ShaderNode, SH_NODE_WIREFRAME, def_sh_tex_wireframe, "WIREFRAME", Wireframe, "Wireframe", "" )
|
DefNode( ShaderNode, SH_NODE_WIREFRAME, def_sh_tex_wireframe, "WIREFRAME", Wireframe, "Wireframe", "" )
|
||||||
|
DefNode( ShaderNode, SH_NODE_WAVELENGTH, 0, "WAVELENGTH", Wavelength, "Wavelength", "" )
|
||||||
DefNode( ShaderNode, SH_NODE_BUMP, def_sh_bump, "BUMP", Bump, "Bump", "" )
|
DefNode( ShaderNode, SH_NODE_BUMP, def_sh_bump, "BUMP", Bump, "Bump", "" )
|
||||||
DefNode( ShaderNode, SH_NODE_NORMAL_MAP, def_sh_normal_map, "NORMAL_MAP", NormalMap, "Normal Map", "" )
|
DefNode( ShaderNode, SH_NODE_NORMAL_MAP, def_sh_normal_map, "NORMAL_MAP", NormalMap, "Normal Map", "" )
|
||||||
DefNode( ShaderNode, SH_NODE_TANGENT, def_sh_tangent, "TANGENT", Tangent, "Tangent", "" )
|
DefNode( ShaderNode, SH_NODE_TANGENT, def_sh_tangent, "TANGENT", Tangent, "Tangent", "" )
|
||||||
|
54
source/blender/nodes/shader/nodes/node_shader_wavelength.c
Normal file
54
source/blender/nodes/shader/nodes/node_shader_wavelength.c
Normal file
@ -0,0 +1,54 @@
|
|||||||
|
/*
|
||||||
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU General Public License
|
||||||
|
* as published by the Free Software Foundation; either version 2
|
||||||
|
* of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software Foundation,
|
||||||
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||||
|
*
|
||||||
|
* The Original Code is Copyright (C) 2005 Blender Foundation.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* The Original Code is: all of this file.
|
||||||
|
*
|
||||||
|
* Contributor(s): none yet.
|
||||||
|
*
|
||||||
|
* ***** END GPL LICENSE BLOCK *****
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "../node_shader_util.h"
|
||||||
|
|
||||||
|
/* **************** Wavelength ******************** */
|
||||||
|
static bNodeSocketTemplate sh_node_wavelength_in[] = {
|
||||||
|
{ SOCK_FLOAT, 1, N_("Wavelength"), 500.0f, 0.0f, 0.0f, 0.0f, 380.0f, 780.0f},
|
||||||
|
{ -1, 0, "" }
|
||||||
|
};
|
||||||
|
|
||||||
|
static bNodeSocketTemplate sh_node_wavelength_out[] = {
|
||||||
|
{ SOCK_RGBA, 0, N_("Color")},
|
||||||
|
{ -1, 0, "" }
|
||||||
|
};
|
||||||
|
|
||||||
|
/* node type definition */
|
||||||
|
void register_node_type_sh_wavelength(void)
|
||||||
|
{
|
||||||
|
static bNodeType ntype;
|
||||||
|
|
||||||
|
sh_node_type_base(&ntype, SH_NODE_WAVELENGTH, "Wavelength", NODE_CLASS_CONVERTOR, 0);
|
||||||
|
node_type_compatibility(&ntype, NODE_NEW_SHADING);
|
||||||
|
node_type_size_preset(&ntype, NODE_SIZE_MIDDLE);
|
||||||
|
node_type_socket_templates(&ntype, sh_node_wavelength_in, sh_node_wavelength_out);
|
||||||
|
node_type_init(&ntype, NULL);
|
||||||
|
node_type_storage(&ntype, "", NULL, NULL);
|
||||||
|
|
||||||
|
nodeRegisterType(&ntype);
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user