Shinsuke Irie
178bd849bf
Revert 0c7d2de382. The "Camera Data" node actually gives the location
of the point in camera coordinate system. To obtain actual camera data,
we can use "Geometry" node instead.
Also modify the "Geometry" node, to produce correct view vector output
in orthographic GLSL preview.
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/shader/nodes/node_shader_camera.c
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* \ingroup shdnodes
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*/
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#include "node_shader_util.h"
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/* **************** CAMERA INFO ******************** */
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static bNodeSocketTemplate sh_node_camera_out[] = {
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{ SOCK_VECTOR, 0, N_("View Vector")},
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{ SOCK_FLOAT, 0, N_("View Z Depth")},
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{ SOCK_FLOAT, 0, N_("View Distance")},
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{ -1, 0, "" }
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};
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static void node_shader_exec_camera(void *data, int UNUSED(thread), bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), bNodeStack **UNUSED(in), bNodeStack **out)
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{
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if (data) {
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ShadeInput *shi = ((ShaderCallData *)data)->shi; /* Data we need for shading. */
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copy_v3_v3(out[0]->vec, shi->co); /* get view vector */
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out[1]->vec[0] = fabs(shi->co[2]); /* get view z-depth */
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out[2]->vec[0] = normalize_v3(out[0]->vec); /* get view distance */
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}
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}
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static int gpu_shader_camera(GPUMaterial *mat, bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
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{
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return GPU_stack_link(mat, "camera", in, out, GPU_builtin(GPU_VIEW_POSITION));
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}
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void register_node_type_sh_camera(void)
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{
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static bNodeType ntype;
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sh_node_type_base(&ntype, SH_NODE_CAMERA, "Camera Data", NODE_CLASS_INPUT, 0);
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node_type_compatibility(&ntype, NODE_OLD_SHADING | NODE_NEW_SHADING);
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node_type_socket_templates(&ntype, NULL, sh_node_camera_out);
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node_type_storage(&ntype, "node_camera", NULL, NULL);
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node_type_exec(&ntype, NULL, NULL, node_shader_exec_camera);
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node_type_gpu(&ntype, gpu_shader_camera);
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nodeRegisterType(&ntype);
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}
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