forked from bartvdbraak/blender
smoothing factor to reduce high values near the light. http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Light_Falloff Note that this was already possible to do manually with the Ray Length, but this adds a convenient node for it. This commit also makes the mapping node min/max option work, fixing #31348.
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/*
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* Copyright 2011, 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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CCL_NAMESPACE_BEGIN
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/* Mapping Node */
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__device void svm_node_mapping(KernelGlobals *kg, ShaderData *sd, float *stack, uint vec_offset, uint out_offset, int *offset)
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{
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float3 v = stack_load_float3(stack, vec_offset);
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Transform tfm;
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tfm.x = read_node_float(kg, offset);
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tfm.y = read_node_float(kg, offset);
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tfm.z = read_node_float(kg, offset);
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tfm.w = read_node_float(kg, offset);
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float3 r = transform_point(&tfm, v);
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stack_store_float3(stack, out_offset, r);
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}
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__device void svm_node_min_max(KernelGlobals *kg, ShaderData *sd, float *stack, uint vec_offset, uint out_offset, int *offset)
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{
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float3 v = stack_load_float3(stack, vec_offset);
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float3 mn = float4_to_float3(read_node_float(kg, offset));
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float3 mx = float4_to_float3(read_node_float(kg, offset));
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float3 r = min(max(mn, v), mx);
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stack_store_float3(stack, out_offset, r);
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}
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CCL_NAMESPACE_END
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