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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.
*/
#include "stdosl.h"
shader node_vector_math(
string type = "Add",
vector Vector1 = vector(0.0, 0.0, 0.0),
vector Vector2 = vector(0.0, 0.0, 0.0),
output float Value = 0.0,
output vector Vector = vector(0.0, 0.0, 0.0))
{
if(type == "Add") {
Vector = Vector1 + Vector2;
Value = (abs(Vector[0]) + abs(Vector[1]) + abs(Vector[2]))/3.0;
}
if(type == "Subtract") {
Vector = Vector1 - Vector2;
Value = (abs(Vector[0]) + abs(Vector[1]) + abs(Vector[2]))/3.0;
}
if(type == "Average") {
Value = length(Vector1 + Vector2);
Vector = normalize(Vector1 + Vector2);
}
if(type == "Dot Product") {
Value = dot(Vector1, Vector2);
}
if(type == "Cross Product") {
vector c = cross(Vector1, Vector2);
Value = length(c);
Vector = normalize(c);
}
if(type == "Normalize") {
Value = length(Vector1);
Vector = normalize(Vector1);
}
}
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