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/*
* 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) 2013 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup shdnodes
*/
#include "../node_shader_util.h"
namespace blender::nodes::node_shader_vector_rotate_cc {
static void sh_node_vector_rotate_declare(NodeDeclarationBuilder &b)
{
b.is_function_node();
b.add_input<decl::Vector>(N_("Vector")).min(0.0f).max(1.0f).hide_value();
b.add_input<decl::Vector>(N_("Center"));
b.add_input<decl::Vector>(N_("Axis")).min(-1.0f).max(1.0f).default_value({0.0f, 0.0f, 1.0f});
b.add_input<decl::Float>(N_("Angle")).subtype(PROP_ANGLE);
b.add_input<decl::Vector>(N_("Rotation")).subtype(PROP_EULER);
b.add_output<decl::Vector>(N_("Vector"));
};
static const char *gpu_shader_get_name(int mode)
{
switch (mode) {
case NODE_VECTOR_ROTATE_TYPE_AXIS:
return "node_vector_rotate_axis_angle";
case NODE_VECTOR_ROTATE_TYPE_AXIS_X:
return "node_vector_rotate_axis_x";
case NODE_VECTOR_ROTATE_TYPE_AXIS_Y:
return "node_vector_rotate_axis_y";
case NODE_VECTOR_ROTATE_TYPE_AXIS_Z:
return "node_vector_rotate_axis_z";
case NODE_VECTOR_ROTATE_TYPE_EULER_XYZ:
return "node_vector_rotate_euler_xyz";
}
return nullptr;
}
static int gpu_shader_vector_rotate(GPUMaterial *mat,
bNode *node,
bNodeExecData *UNUSED(execdata),
GPUNodeStack *in,
GPUNodeStack *out)
{
const char *name = gpu_shader_get_name(node->custom1);
if (name != nullptr) {
float invert = (node->custom2) ? -1.0 : 1.0;
return GPU_stack_link(mat, node, name, in, out, GPU_constant(&invert));
}
return 0;
}
using blender::float3;
static float3 sh_node_vector_rotate_around_axis(const float3 vector,
const float3 center,
const float3 axis,
const float angle)
{
float3 result = vector - center;
float mat[3][3];
axis_angle_to_mat3(mat, axis, angle);
mul_m3_v3(mat, result);
return result + center;
}
static float3 sh_node_vector_rotate_euler(const float3 vector,
const float3 center,
const float3 rotation,
const bool invert)
{
float mat[3][3];
float3 result = vector - center;
eul_to_mat3(mat, rotation);
if (invert) {
invert_m3(mat);
}
mul_m3_v3(mat, result);
return result + center;
}
static const blender::fn::MultiFunction *get_multi_function(bNode &node)
{
bool invert = node.custom2;
const int mode = node.custom1;
switch (mode) {
case NODE_VECTOR_ROTATE_TYPE_AXIS: {
if (invert) {
static blender::fn::CustomMF_SI_SI_SI_SI_SO<float3, float3, float3, float, float3> fn{
"Rotate Axis", [](float3 in, float3 center, float3 axis, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, -angle);
}};
return &fn;
}
static blender::fn::CustomMF_SI_SI_SI_SI_SO<float3, float3, float3, float, float3> fn{
"Rotate Axis", [](float3 in, float3 center, float3 axis, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, angle);
}};
return &fn;
}
case NODE_VECTOR_ROTATE_TYPE_AXIS_X: {
float3 axis = float3(1.0f, 0.0f, 0.0f);
if (invert) {
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate X-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, -angle);
}};
return &fn;
}
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate X-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, angle);
}};
return &fn;
}
case NODE_VECTOR_ROTATE_TYPE_AXIS_Y: {
float3 axis = float3(0.0f, 1.0f, 0.0f);
if (invert) {
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate Y-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, -angle);
}};
return &fn;
}
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate Y-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, angle);
}};
return &fn;
}
case NODE_VECTOR_ROTATE_TYPE_AXIS_Z: {
float3 axis = float3(0.0f, 0.0f, 1.0f);
if (invert) {
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate Z-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, -angle);
}};
return &fn;
}
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float, float3> fn{
"Rotate Z-Axis", [=](float3 in, float3 center, float angle) {
return sh_node_vector_rotate_around_axis(in, center, axis, angle);
}};
return &fn;
}
case NODE_VECTOR_ROTATE_TYPE_EULER_XYZ: {
if (invert) {
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float3, float3> fn{
"Rotate Euler", [](float3 in, float3 center, float3 rotation) {
return sh_node_vector_rotate_euler(in, center, rotation, true);
}};
return &fn;
}
static blender::fn::CustomMF_SI_SI_SI_SO<float3, float3, float3, float3> fn{
"Rotate Euler", [](float3 in, float3 center, float3 rotation) {
return sh_node_vector_rotate_euler(in, center, rotation, false);
}};
return &fn;
}
default:
BLI_assert_unreachable();
return nullptr;
}
}
static void sh_node_vector_rotate_build_multi_function(
blender::nodes::NodeMultiFunctionBuilder &builder)
{
const blender::fn::MultiFunction *fn = get_multi_function(builder.node());
builder.set_matching_fn(fn);
}
static void node_shader_update_vector_rotate(bNodeTree *ntree, bNode *node)
{
bNodeSocket *sock_rotation = nodeFindSocket(node, SOCK_IN, "Rotation");
nodeSetSocketAvailability(
ntree, sock_rotation, ELEM(node->custom1, NODE_VECTOR_ROTATE_TYPE_EULER_XYZ));
bNodeSocket *sock_axis = nodeFindSocket(node, SOCK_IN, "Axis");
nodeSetSocketAvailability(ntree, sock_axis, ELEM(node->custom1, NODE_VECTOR_ROTATE_TYPE_AXIS));
bNodeSocket *sock_angle = nodeFindSocket(node, SOCK_IN, "Angle");
nodeSetSocketAvailability(
ntree, sock_angle, !ELEM(node->custom1, NODE_VECTOR_ROTATE_TYPE_EULER_XYZ));
}
} // namespace blender::nodes::node_shader_vector_rotate_cc
void register_node_type_sh_vector_rotate()
{
namespace file_ns = blender::nodes::node_shader_vector_rotate_cc;
static bNodeType ntype;
sh_fn_node_type_base(&ntype, SH_NODE_VECTOR_ROTATE, "Vector Rotate", NODE_CLASS_OP_VECTOR);
ntype.declare = file_ns::sh_node_vector_rotate_declare;
node_type_gpu(&ntype, file_ns::gpu_shader_vector_rotate);
node_type_update(&ntype, file_ns::node_shader_update_vector_rotate);
ntype.build_multi_function = file_ns::sh_node_vector_rotate_build_multi_function;
nodeRegisterType(&ntype);
}
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