Alexander Romanov
78b5d66af8
Object Info node can be useful to give some variation to a single material assigned to multiple instances. This patch adds support for Viewport and BI.
{F499530}
Example: {F499528}
Reviewers: merwin, brecht, dfelinto
Reviewed By: brecht
Subscribers: duarteframos, fclem, homyachetser, Evgeny_Rodygin, AlexKowel, yurikovelenov
Differential Revision: https://developer.blender.org/D2425
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
/*
|
|
* ***** 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.
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
#ifndef __BLI_HASH_H__
|
|
#define __BLI_HASH_H__
|
|
|
|
/** \file BLI_hash.h
|
|
* \ingroup bli
|
|
*/
|
|
|
|
static inline unsigned int BLI_hash_int_2d(unsigned int kx, unsigned int ky)
|
|
{
|
|
#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
|
|
|
|
unsigned int a, b, c;
|
|
|
|
a = b = c = 0xdeadbeef + (2 << 2) + 13;
|
|
a += kx;
|
|
b += ky;
|
|
|
|
c ^= b; c -= rot(b,14);
|
|
a ^= c; a -= rot(c,11);
|
|
b ^= a; b -= rot(a,25);
|
|
c ^= b; c -= rot(b,16);
|
|
a ^= c; a -= rot(c,4);
|
|
b ^= a; b -= rot(a,14);
|
|
c ^= b; c -= rot(b,24);
|
|
|
|
return c;
|
|
|
|
#undef rot
|
|
}
|
|
|
|
static inline unsigned int BLI_hash_string(const char *str)
|
|
{
|
|
unsigned int i = 0, c;
|
|
|
|
while((c = *str++))
|
|
i = i * 37 + c;
|
|
|
|
return i;
|
|
}
|
|
|
|
static inline unsigned int BLI_hash_int(unsigned int k)
|
|
{
|
|
return BLI_hash_int_2d(k, 0);
|
|
}
|
|
|
|
#endif // __BLI_HASH_H__
|