TEX_mixRgb.c

Go to the documentation of this file.

/*
 *
 * ***** 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.
 *
 * The Original Code is Copyright (C) 2005 Blender Foundation.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): Robin Allen
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "../TEX_util.h"
#include "TEX_node.h"

/* **************** MIX RGB ******************** */
static bNodeSocketType inputs[]= {
        { SOCK_VALUE, 1, "Factor", 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f },
        { SOCK_RGBA,  1, "Color1", 0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 1.0f },
        { SOCK_RGBA , 1, "Color2", 0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 1.0f },
        { -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 colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
{
        float fac  = tex_input_value(in[0], p, thread);
        float col1[4], col2[4];
        
        tex_input_rgba(col1, in[1], p, thread);
        tex_input_rgba(col2, in[2], p, thread);
        
        CLAMP(fac, 0.0f, 1.0f);
        
        QUATCOPY(out, col1);
        ramp_blend(node->custom1, out, out+1, out+2, fac, col2);
}

static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
        tex_output(node, in, out[0], &colorfn, data);
}

void register_node_type_tex_mix_rgb(ListBase *lb)
{
        static bNodeType ntype;
        
        node_type_base(&ntype, TEX_NODE_MIX_RGB, "Mix", NODE_CLASS_OP_COLOR, NODE_OPTIONS,
                                   inputs, outputs);
        node_type_size(&ntype, 100, 60, 150);
        node_type_label(&ntype, node_blend_label);
        node_type_exec(&ntype, exec);
        
        nodeRegisterType(lb, &ntype);
}