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/**
*
* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "../TEX_util.h"
#include <math.h>
static bNodeSocketType inputs[]= {
{ SOCK_RGBA, 1, "Bricks 1", 0.596f, 0.282f, 0.0f, 1.0f, 0.0f, 1.0f },
{ SOCK_RGBA, 1, "Bricks 2", 0.632f, 0.504f, 0.05f, 1.0f, 0.0f, 1.0f },
{ SOCK_RGBA, 1, "Mortar", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f },
{ SOCK_VALUE, 1, "Thickness", 0.02f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f },
{ SOCK_VALUE, 1, "Bias", 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f },
{ SOCK_VALUE, 1, "Brick Width", 0.5f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f },
{ SOCK_VALUE, 1, "Row Height", 0.25f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f },
{ -1, 0, "" }
};
static bNodeSocketType outputs[]= {
{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ -1, 0, "" }
};
static void init(bNode *node) {
node->custom3 = 0.5; /* offset */
node->custom4 = 1.0; /* squash */
}
static void colorfn(float *out, float *coord, bNode *node, bNodeStack **in, short thread)
{
float x = coord[0];
float y = coord[1];
float bricknum, rownum, offset = 0;
float ins_x, ins_y;
float tint;
float bricks1[4];
float bricks2[4];
float mortar[4];
float mortar_thickness = tex_input_value(in[3], coord, thread);
float bias = tex_input_value(in[4], coord, thread);
float brick_width = tex_input_value(in[5], coord, thread);
float row_height = tex_input_value(in[6], coord, thread);
tex_input_rgba(bricks1, in[0], coord, thread);
tex_input_rgba(bricks2, in[1], coord, thread);
tex_input_rgba(mortar, in[2], coord, thread);
rownum = floor(y / row_height);
if( node->custom1 && node->custom2 ) {
brick_width *= ((int)(rownum) % node->custom2 ) ? 1.0f : node->custom4; /* squash */
offset = ((int)(rownum) % node->custom1 ) ? 0 : (brick_width*node->custom3); /* offset */
}
bricknum = floor((x+offset) / brick_width);
ins_x = (x+offset) - brick_width*bricknum;
ins_y = y - row_height*rownum;
srand( (123456*rownum) + bricknum );
tint = rand() / (float)RAND_MAX + bias;
CLAMP(tint,0.0f,1.0f);
if( ins_x < mortar_thickness || ins_y < mortar_thickness ||
ins_x > (brick_width - mortar_thickness) ||
ins_y > (row_height - mortar_thickness) ) {
QUATCOPY( out, mortar );
} else {
QUATCOPY( out, bricks1 );
ramp_blend( MA_RAMP_BLEND, out, out+1, out+2, tint, bricks2 );
}
}
static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
tex_output(node, in, out[0], &colorfn);
tex_do_preview(node, out[0], data);
}
bNodeType tex_node_bricks= {
/* *next,*prev */ NULL, NULL,
/* type code */ TEX_NODE_BRICKS,
/* name */ "Bricks",
/* width+range */ 150, 60, 150,
/* class+opts */ NODE_CLASS_PATTERN, NODE_OPTIONS | NODE_PREVIEW,
/* input sock */ inputs,
/* output sock */ outputs,
/* storage */ "",
/* execfunc */ exec,
/* butfunc */ NULL,
/* initfunc */ init,
/* freestoragefunc */ NULL,
/* copystoragefunc */ NULL,
/* id */ NULL
};
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