diff options
Diffstat (limited to 'source/blender/nodes/shader/nodes/node_shader_math.cc')
| -rw-r--r-- | source/blender/nodes/shader/nodes/node_shader_math.cc | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_math.cc b/source/blender/nodes/shader/nodes/node_shader_math.cc new file mode 100644 index 00000000000..a0eb5099f9d --- /dev/null +++ b/source/blender/nodes/shader/nodes/node_shader_math.cc @@ -0,0 +1,196 @@ +/* + * 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. + */ + +/** \file + * \ingroup shdnodes + */ + +#include "node_shader_util.h" + +/* **************** SCALAR MATH ******************** */ +static bNodeSocketTemplate sh_node_math_in[] = { + {SOCK_FLOAT, N_("Value"), 0.5f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, + {SOCK_FLOAT, N_("Value"), 0.5f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, + {SOCK_FLOAT, N_("Value"), 0.0f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, + {-1, ""}}; + +static bNodeSocketTemplate sh_node_math_out[] = {{SOCK_FLOAT, N_("Value")}, {-1, ""}}; + +static const char *gpu_shader_get_name(int mode) +{ + switch (mode) { + case NODE_MATH_ADD: + return "math_add"; + case NODE_MATH_SUBTRACT: + return "math_subtract"; + case NODE_MATH_MULTIPLY: + return "math_multiply"; + case NODE_MATH_DIVIDE: + return "math_divide"; + case NODE_MATH_MULTIPLY_ADD: + return "math_multiply_add"; + + case NODE_MATH_POWER: + return "math_power"; + case NODE_MATH_LOGARITHM: + return "math_logarithm"; + case NODE_MATH_EXPONENT: + return "math_exponent"; + case NODE_MATH_SQRT: + return "math_sqrt"; + case NODE_MATH_INV_SQRT: + return "math_inversesqrt"; + case NODE_MATH_ABSOLUTE: + return "math_absolute"; + case NODE_MATH_RADIANS: + return "math_radians"; + case NODE_MATH_DEGREES: + return "math_degrees"; + + case NODE_MATH_MINIMUM: + return "math_minimum"; + case NODE_MATH_MAXIMUM: + return "math_maximum"; + case NODE_MATH_LESS_THAN: + return "math_less_than"; + case NODE_MATH_GREATER_THAN: + return "math_greater_than"; + case NODE_MATH_SIGN: + return "math_sign"; + case NODE_MATH_COMPARE: + return "math_compare"; + case NODE_MATH_SMOOTH_MIN: + return "math_smoothmin"; + case NODE_MATH_SMOOTH_MAX: + return "math_smoothmax"; + + case NODE_MATH_ROUND: + return "math_round"; + case NODE_MATH_FLOOR: + return "math_floor"; + case NODE_MATH_CEIL: + return "math_ceil"; + case NODE_MATH_FRACTION: + return "math_fraction"; + case NODE_MATH_MODULO: + return "math_modulo"; + case NODE_MATH_TRUNC: + return "math_trunc"; + case NODE_MATH_SNAP: + return "math_snap"; + case NODE_MATH_WRAP: + return "math_wrap"; + case NODE_MATH_PINGPONG: + return "math_pingpong"; + + case NODE_MATH_SINE: + return "math_sine"; + case NODE_MATH_COSINE: + return "math_cosine"; + case NODE_MATH_TANGENT: + return "math_tangent"; + case NODE_MATH_SINH: + return "math_sinh"; + case NODE_MATH_COSH: + return "math_cosh"; + case NODE_MATH_TANH: + return "math_tanh"; + case NODE_MATH_ARCSINE: + return "math_arcsine"; + case NODE_MATH_ARCCOSINE: + return "math_arccosine"; + case NODE_MATH_ARCTANGENT: + return "math_arctangent"; + case NODE_MATH_ARCTAN2: + return "math_arctan2"; + } + return nullptr; +} + +static int gpu_shader_math(GPUMaterial *mat, + bNode *node, + bNodeExecData *UNUSED(execdata), + GPUNodeStack *in, + GPUNodeStack *out) +{ + const char *name = gpu_shader_get_name(node->custom1); + if (name != nullptr) { + int ret = GPU_stack_link(mat, node, name, in, out); + + if (ret && node->custom2 & SHD_MATH_CLAMP) { + float min[3] = {0.0f, 0.0f, 0.0f}; + float max[3] = {1.0f, 1.0f, 1.0f}; + GPU_link( + mat, "clamp_value", out[0].link, GPU_constant(min), GPU_constant(max), &out[0].link); + } + return ret; + } + else { + return 0; + } +} + +static void sh_node_math_expand_in_mf_network(blender::bke::NodeMFNetworkBuilder &builder) +{ + /* TODO: Implement clamp and other operations. */ + const int mode = builder.bnode().custom1; + switch (mode) { + case NODE_MATH_ADD: { + static blender::fn::CustomMF_SI_SI_SO<float, float, float> fn{ + "Add", [](float a, float b) { return a + b; }}; + builder.set_matching_fn(fn); + break; + } + case NODE_MATH_SUBTRACT: { + static blender::fn::CustomMF_SI_SI_SO<float, float, float> fn{ + "Subtract", [](float a, float b) { return a - b; }}; + builder.set_matching_fn(fn); + break; + } + case NODE_MATH_MULTIPLY: { + static blender::fn::CustomMF_SI_SI_SO<float, float, float> fn{ + "Multiply", [](float a, float b) { return a * b; }}; + builder.set_matching_fn(fn); + break; + } + case NODE_MATH_DIVIDE: { + static blender::fn::CustomMF_SI_SI_SO<float, float, float> fn{ + "Divide", [](float a, float b) { return (b != 0.0f) ? a / b : 0.0f; }}; + builder.set_matching_fn(fn); + break; + } + default: + BLI_assert(false); + break; + } +} + +void register_node_type_sh_math(void) +{ + static bNodeType ntype; + + sh_fn_node_type_base(&ntype, SH_NODE_MATH, "Math", NODE_CLASS_CONVERTOR, 0); + node_type_socket_templates(&ntype, sh_node_math_in, sh_node_math_out); + node_type_label(&ntype, node_math_label); + node_type_gpu(&ntype, gpu_shader_math); + node_type_update(&ntype, node_math_update); + ntype.expand_in_mf_network = sh_node_math_expand_in_mf_network; + + nodeRegisterType(&ntype); +} |