diff options
Diffstat (limited to 'source/blender/nodes/intern/TEX_nodes/TEX_math.c')
| -rw-r--r-- | source/blender/nodes/intern/TEX_nodes/TEX_math.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/source/blender/nodes/intern/TEX_nodes/TEX_math.c b/source/blender/nodes/intern/TEX_nodes/TEX_math.c new file mode 100644 index 00000000000..a2c66078692 --- /dev/null +++ b/source/blender/nodes/intern/TEX_nodes/TEX_math.c @@ -0,0 +1,172 @@ +/** + * + * ***** 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" + + + +/* **************** SCALAR MATH ******************** */ +static bNodeSocketType inputs[]= { + { SOCK_VALUE, 1, "Value", 0.5f, 0.5f, 0.5f, 1.0f, -100.0f, 100.0f}, + { SOCK_VALUE, 1, "Value", 0.5f, 0.5f, 0.5f, 1.0f, -100.0f, 100.0f}, + { -1, 0, "" } +}; + +static bNodeSocketType outputs[]= { + { SOCK_VALUE, 0, "Value", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f}, + { -1, 0, "" } +}; + +static void valuefn(float *out, float *coord, bNode *node, bNodeStack **in, short thread) +{ + float in0 = tex_input_value(in[0], coord, thread); + float in1 = tex_input_value(in[1], coord, thread); + + switch(node->custom1){ + + case 0: /* Add */ + *out= in0 + in1; + break; + case 1: /* Subtract */ + *out= in0 - in1; + break; + case 2: /* Multiply */ + *out= in0 * in1; + break; + case 3: /* Divide */ + { + if(in1==0) /* We don't want to divide by zero. */ + *out= 0.0; + else + *out= in0 / in1; + } + break; + case 4: /* Sine */ + { + *out= sin(in0); + } + break; + case 5: /* Cosine */ + { + *out= cos(in0); + } + break; + case 6: /* Tangent */ + { + *out= tan(in0); + } + break; + case 7: /* Arc-Sine */ + { + /* Can't do the impossible... */ + if( in0 <= 1 && in0 >= -1 ) + *out= asin(in0); + else + *out= 0.0; + } + break; + case 8: /* Arc-Cosine */ + { + /* Can't do the impossible... */ + if( in0 <= 1 && in0 >= -1 ) + *out= acos(in0); + else + *out= 0.0; + } + break; + case 9: /* Arc-Tangent */ + { + *out= atan(in0); + } + break; + case 10: /* Power */ + { + /* Don't want any imaginary numbers... */ + if( in0 >= 0 ) + *out= pow(in0, in1); + else + *out= 0.0; + } + break; + case 11: /* Logarithm */ + { + /* Don't want any imaginary numbers... */ + if( in0 > 0 && in1 > 0 ) + *out= log(in0) / log(in1); + else + *out= 0.0; + } + break; + case 12: /* Minimum */ + { + if( in0 < in1 ) + *out= in0; + else + *out= in1; + } + break; + case 13: /* Maximum */ + { + if( in0 > in1 ) + *out= in0; + else + *out= in1; + } + break; + case 14: /* Round */ + { + *out= (int)(in0 + 0.5f); + } + break; + } +} + +static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out) +{ + tex_output(node, in, out[0], &valuefn); + + tex_do_preview(node, out[0], data); +} + +bNodeType tex_node_math= { + /* *next,*prev */ NULL, NULL, + /* type code */ TEX_NODE_MATH, + /* name */ "Math", + /* width+range */ 120, 110, 160, + /* class+opts */ NODE_CLASS_CONVERTOR, NODE_OPTIONS, + /* input sock */ inputs, + /* output sock */ outputs, + /* storage */ "node_math", + /* execfunc */ exec, + /* butfunc */ NULL, + /* initfunc */ NULL, + /* freestoragefunc */ NULL, + /* copystoragefunc */ NULL, + /* id */ NULL +}; + |