forked from bartvdbraak/blender
e6a84eb1b5
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
/*
|
|
* Copyright 2011, Blender Foundation.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
/* Mapping Node */
|
|
|
|
__device void svm_node_mapping(KernelGlobals *kg, ShaderData *sd, float *stack, uint vec_offset, uint out_offset, int *offset)
|
|
{
|
|
float3 v = stack_load_float3(stack, vec_offset);
|
|
|
|
Transform tfm;
|
|
tfm.x = read_node_float(kg, offset);
|
|
tfm.y = read_node_float(kg, offset);
|
|
tfm.z = read_node_float(kg, offset);
|
|
tfm.w = read_node_float(kg, offset);
|
|
|
|
float3 r = transform_point(&tfm, v);
|
|
stack_store_float3(stack, out_offset, r);
|
|
}
|
|
|
|
__device void svm_node_min_max(KernelGlobals *kg, ShaderData *sd, float *stack, uint vec_offset, uint out_offset, int *offset)
|
|
{
|
|
float3 v = stack_load_float3(stack, vec_offset);
|
|
|
|
float3 mn = float4_to_float3(read_node_float(kg, offset));
|
|
float3 mx = float4_to_float3(read_node_float(kg, offset));
|
|
|
|
float3 r = min(max(mn, v), mx);
|
|
stack_store_float3(stack, out_offset, r);
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|