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/*
* ***** 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): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/nodes/shader/nodes/node_shader_camera.c
* \ingroup shdnodes
*/
#include "node_shader_util.h"
/* **************** CAMERA INFO ******************** */
static bNodeSocketTemplate sh_node_camera_out[]= {
{ SOCK_VECTOR, 0, "View Vector"},
{ SOCK_FLOAT, 0, "View Z Depth"},
{ SOCK_FLOAT, 0, "View Distance"},
{ -1, 0, "" }
};
static void node_shader_exec_camera(void *data, bNode *UNUSED(node), bNodeStack **UNUSED(in), bNodeStack **out)
{
if(data) {
ShadeInput *shi= ((ShaderCallData *)data)->shi; /* Data we need for shading. */
copy_v3_v3(out[0]->vec, shi->co); /* get view vector */
out[1]->vec[0]= fabs(shi->co[2]); /* get view z-depth */
out[2]->vec[0]= normalize_v3(out[0]->vec); /* get view distance */
}
}
static int gpu_shader_camera(GPUMaterial *mat, bNode *UNUSED(node), GPUNodeStack *in, GPUNodeStack *out)
{
return GPU_stack_link(mat, "camera", in, out, GPU_builtin(GPU_VIEW_POSITION));
}
void register_node_type_sh_camera(ListBase *lb)
{
static bNodeType ntype;
node_type_base(&ntype, SH_NODE_CAMERA, "Camera Data", NODE_CLASS_INPUT, 0);
node_type_compatibility(&ntype, NODE_OLD_SHADING);
node_type_socket_templates(&ntype, NULL, sh_node_camera_out);
node_type_size(&ntype, 95, 95, 120);
node_type_storage(&ntype, "node_camera", NULL, NULL);
node_type_exec(&ntype, node_shader_exec_camera);
node_type_gpu(&ntype, gpu_shader_camera);
nodeRegisterType(lb, &ntype);
}
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