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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) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup shdnodes
*/
#include "node_shader_util.h"
/* **************** BUMP ******************** */
/* clang-format off */
static bNodeSocketTemplate sh_node_bump_in[] = {
{SOCK_FLOAT, N_("Strength"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
{SOCK_FLOAT, N_("Distance"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1000.0f},
{SOCK_FLOAT, N_("Height"), 1.0f, 1.0f, 1.0f, 1.0f, -1000.0f, 1000.0f, PROP_NONE, SOCK_HIDE_VALUE},
{SOCK_FLOAT, N_("Height_dx"), 1.0f, 1.0f, 1.0f, 1.0f, -1000.0f, 1000.0f, PROP_NONE, SOCK_UNAVAIL},
{SOCK_FLOAT, N_("Height_dy"), 1.0f, 1.0f, 1.0f, 1.0f, -1000.0f, 1000.0f, PROP_NONE, SOCK_UNAVAIL},
{SOCK_VECTOR, N_("Normal"), 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_NONE, SOCK_HIDE_VALUE},
{-1, ""}
};
/* clang-format on */
static bNodeSocketTemplate sh_node_bump_out[] = {{SOCK_VECTOR, "Normal"}, {-1, ""}};
static int gpu_shader_bump(GPUMaterial *mat,
bNode *node,
bNodeExecData *UNUSED(execdata),
GPUNodeStack *in,
GPUNodeStack *out)
{
if (!in[5].link) {
GPU_link(mat, "world_normals_get", &in[5].link);
}
float invert = (node->custom1) ? -1.0 : 1.0;
return GPU_stack_link(
mat, node, "node_bump", in, out, GPU_builtin(GPU_VIEW_POSITION), GPU_constant(&invert));
}
/* node type definition */
void register_node_type_sh_bump(void)
{
static bNodeType ntype;
sh_node_type_base(&ntype, SH_NODE_BUMP, "Bump", NODE_CLASS_OP_VECTOR, 0);
node_type_socket_templates(&ntype, sh_node_bump_in, sh_node_bump_out);
node_type_storage(&ntype, "", NULL, NULL);
node_type_gpu(&ntype, gpu_shader_bump);
nodeRegisterType(&ntype);
}
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