1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version 2
5 * of the License, or (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software Foundation,
14 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
15 *
16 * The Original Code is Copyright (C) 2005 Blender Foundation.
17 * All rights reserved.
18 */
19
20 #include "../node_shader_util.h"
21
22 /* **************** Layer Weight ******************** */
23
24 static bNodeSocketTemplate sh_node_layer_weight_in[] = {
25 {SOCK_FLOAT, N_("Blend"), 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
26 {SOCK_VECTOR, N_("Normal"), 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_NONE, SOCK_HIDE_VALUE},
27 {-1, ""},
28 };
29
30 static bNodeSocketTemplate sh_node_layer_weight_out[] = {
31 {SOCK_FLOAT, N_("Fresnel"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
32 {SOCK_FLOAT, N_("Facing"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
33 {-1, ""},
34 };
35
node_shader_gpu_layer_weight(GPUMaterial * mat,bNode * node,bNodeExecData * UNUSED (execdata),GPUNodeStack * in,GPUNodeStack * out)36 static int node_shader_gpu_layer_weight(GPUMaterial *mat,
37 bNode *node,
38 bNodeExecData *UNUSED(execdata),
39 GPUNodeStack *in,
40 GPUNodeStack *out)
41 {
42 if (!in[1].link) {
43 in[1].link = GPU_builtin(GPU_VIEW_NORMAL);
44 }
45 else {
46 GPU_link(
47 mat, "direction_transform_m4v3", in[1].link, GPU_builtin(GPU_VIEW_MATRIX), &in[1].link);
48 }
49
50 return GPU_stack_link(mat, node, "node_layer_weight", in, out, GPU_builtin(GPU_VIEW_POSITION));
51 }
52
node_shader_exec_layer_weight(void * UNUSED (data),int UNUSED (thread),bNode * UNUSED (node),bNodeExecData * UNUSED (execdata),bNodeStack ** UNUSED (in),bNodeStack ** UNUSED (out))53 static void node_shader_exec_layer_weight(void *UNUSED(data),
54 int UNUSED(thread),
55 bNode *UNUSED(node),
56 bNodeExecData *UNUSED(execdata),
57 bNodeStack **UNUSED(in),
58 bNodeStack **UNUSED(out))
59 {
60 }
61
62 /* node type definition */
register_node_type_sh_layer_weight(void)63 void register_node_type_sh_layer_weight(void)
64 {
65 static bNodeType ntype;
66
67 sh_node_type_base(&ntype, SH_NODE_LAYER_WEIGHT, "Layer Weight", NODE_CLASS_INPUT, 0);
68 node_type_socket_templates(&ntype, sh_node_layer_weight_in, sh_node_layer_weight_out);
69 node_type_init(&ntype, NULL);
70 node_type_storage(&ntype, "", NULL, NULL);
71 node_type_gpu(&ntype, node_shader_gpu_layer_weight);
72 node_type_exec(&ntype, NULL, NULL, node_shader_exec_layer_weight);
73
74 nodeRegisterType(&ntype);
75 }
76