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/*
* 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
__device void kernel_displace(KernelGlobals *kg, uint4 *input, float3 *offset, int i)
{
/* setup shader data */
ShaderData sd;
uint4 in = input[i];
shader_setup_from_displace(kg, &sd, in.x, in.y, __int_as_float(in.z), __int_as_float(in.w));
/* evaluate */
float3 P = sd.P;
shader_eval_displacement(kg, &sd);
offset[i] = sd.P - P;
}
CCL_NAMESPACE_END
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