134 lines
4.1 KiB
C
134 lines
4.1 KiB
C
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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): Robin Allen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/texture/nodes/node_texture_bricks.c
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* \ingroup texnodes
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*/
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#include "node_texture_util.h"
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#include "NOD_texture.h"
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#include <math.h>
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static bNodeSocketTemplate inputs[]= {
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{ SOCK_RGBA, 1, "Bricks 1", 0.596f, 0.282f, 0.0f, 1.0f },
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{ SOCK_RGBA, 1, "Bricks 2", 0.632f, 0.504f, 0.05f, 1.0f },
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{ SOCK_RGBA, 1, "Mortar", 0.0f, 0.0f, 0.0f, 1.0f },
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{ SOCK_FLOAT, 1, "Thickness", 0.02f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_UNSIGNED },
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{ SOCK_FLOAT, 1, "Bias", 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f, PROP_NONE },
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{ SOCK_FLOAT, 1, "Brick Width", 0.5f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f, PROP_UNSIGNED },
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{ SOCK_FLOAT, 1, "Row Height", 0.25f, 0.0f, 0.0f, 0.0f, 0.001f, 99.0f, PROP_UNSIGNED },
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{ -1, 0, "" }
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};
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static bNodeSocketTemplate outputs[]= {
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{ SOCK_RGBA, 0, "Color"},
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{ -1, 0, "" }
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};
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static void init(bNodeTree *UNUSED(ntree), bNode* node, bNodeTemplate *UNUSED(ntemp))
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{
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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 float noise(int n) /* fast integer noise */
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{
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int nn;
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n = (n >> 13) ^ n;
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nn = (n * (n * n * 60493 + 19990303) + 1376312589) & 0x7fffffff;
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return 0.5f * ((float)nn / 1073741824.0f);
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}
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static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
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{
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float *co = p->co;
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float x = co[0];
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float y = co[1];
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int bricknum, rownum;
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float 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], p, thread);
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float bias = tex_input_value(in[4], p, thread);
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float brick_width = tex_input_value(in[5], p, thread);
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float row_height = tex_input_value(in[6], p, thread);
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tex_input_rgba(bricks1, in[0], p, thread);
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tex_input_rgba(bricks2, in[1], p, thread);
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tex_input_rgba(mortar, in[2], p, thread);
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rownum = (int)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 = (int)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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tint = noise((rownum << 16) + (bricknum & 0xFFFF)) + 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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copy_v4_v4( out, mortar );
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} else {
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copy_v4_v4( out, bricks1 );
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ramp_blend( MA_RAMP_BLEND, out, 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, data);
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}
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void register_node_type_tex_bricks(bNodeTreeType *ttype)
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{
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static bNodeType ntype;
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node_type_base(ttype, &ntype, TEX_NODE_BRICKS, "Bricks", NODE_CLASS_PATTERN, NODE_PREVIEW|NODE_OPTIONS);
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node_type_socket_templates(&ntype, inputs, outputs);
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node_type_size(&ntype, 150, 60, 150);
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node_type_init(&ntype, init);
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node_type_exec(&ntype, exec);
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nodeRegisterType(ttype, &ntype);
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}
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