124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/**
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2005 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "../TEX_util.h"
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#include <math.h>
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static bNodeSocketType inputs[]= {
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{ SOCK_RGBA, 1, "Bricks 1", 0.596f, 0.282f, 0.0f, 1.0f, 0.0f, 1.0f },
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{ SOCK_RGBA, 1, "Bricks 2", 0.632f, 0.504f, 0.05f, 1.0f, 0.0f, 1.0f },
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{ SOCK_RGBA, 1, "Mortar", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f },
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{ SOCK_VALUE, 1, "Thickness", 0.02f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f },
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{ SOCK_VALUE, 1, "Bias", 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f },
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{ SOCK_VALUE, 1, "Brick Width", 0.5f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f },
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{ SOCK_VALUE, 1, "Row Height", 0.25f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f },
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{ -1, 0, "" }
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};
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static bNodeSocketType outputs[]= {
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{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static void init(bNode *node) {
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node->custom3 = 0.5; /* offset */
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node->custom4 = 1.0; /* squash */
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}
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static void colorfn(float *out, float *coord, bNode *node, bNodeStack **in, short thread)
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{
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float x = coord[0];
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float y = coord[1];
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float bricknum, rownum, offset = 0;
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float ins_x, ins_y;
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float tint;
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float bricks1[4];
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float bricks2[4];
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float mortar[4];
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float mortar_thickness = tex_input_value(in[3], coord, thread);
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float bias = tex_input_value(in[4], coord, thread);
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float brick_width = tex_input_value(in[5], coord, thread);
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float row_height = tex_input_value(in[6], coord, thread);
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tex_input_rgba(bricks1, in[0], coord, thread);
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tex_input_rgba(bricks2, in[1], coord, thread);
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tex_input_rgba(mortar, in[2], coord, thread);
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rownum = floor(y / row_height);
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if( node->custom1 && node->custom2 ) {
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brick_width *= ((int)(rownum) % node->custom2 ) ? 1.0f : node->custom4; /* squash */
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offset = ((int)(rownum) % node->custom1 ) ? 0 : (brick_width*node->custom3); /* offset */
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}
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bricknum = floor((x+offset) / brick_width);
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ins_x = (x+offset) - brick_width*bricknum;
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ins_y = y - row_height*rownum;
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srand( (123456*rownum) + bricknum );
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tint = rand() / (float)RAND_MAX + bias;
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CLAMP(tint,0.0f,1.0f);
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if( ins_x < mortar_thickness || ins_y < mortar_thickness ||
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ins_x > (brick_width - mortar_thickness) ||
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ins_y > (row_height - mortar_thickness) ) {
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QUATCOPY( out, mortar );
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} else {
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QUATCOPY( out, bricks1 );
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ramp_blend( MA_RAMP_BLEND, out, out+1, out+2, tint, bricks2 );
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}
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}
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static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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tex_output(node, in, out[0], &colorfn);
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tex_do_preview(node, out[0], data);
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}
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bNodeType tex_node_bricks= {
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/* *next,*prev */ NULL, NULL,
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/* type code */ TEX_NODE_BRICKS,
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/* name */ "Bricks",
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/* width+range */ 150, 60, 150,
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/* class+opts */ NODE_CLASS_PATTERN, NODE_OPTIONS | NODE_PREVIEW,
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/* input sock */ inputs,
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/* output sock */ outputs,
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/* storage */ "",
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/* execfunc */ exec,
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/* butfunc */ NULL,
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/* initfunc */ init,
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/* freestoragefunc */ NULL,
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/* copystoragefunc */ NULL,
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/* id */ NULL
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};
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