1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/*
* 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 nodes
*/
#include "DNA_node_types.h"
#include "node_shader_util.h"
#include "node_exec.h"
bool sh_node_poll_default(bNodeType *UNUSED(ntype), bNodeTree *ntree)
{
return STREQ(ntree->idname, "ShaderNodeTree");
}
void sh_node_type_base(struct bNodeType *ntype, int type, const char *name, short nclass, short flag)
{
node_type_base(ntype, type, name, nclass, flag);
ntype->poll = sh_node_poll_default;
ntype->insert_link = node_insert_link_default;
ntype->update_internal_links = node_update_internal_links_default;
}
/* ****** */
void nodestack_get_vec(float *in, short type_in, bNodeStack *ns)
{
const float *from = ns->vec;
if (type_in == SOCK_FLOAT) {
if (ns->sockettype == SOCK_FLOAT)
*in = *from;
else
*in = (from[0] + from[1] + from[2]) / 3.0f;
}
else if (type_in == SOCK_VECTOR) {
if (ns->sockettype == SOCK_FLOAT) {
in[0] = from[0];
in[1] = from[0];
in[2] = from[0];
}
else {
copy_v3_v3(in, from);
}
}
else { /* type_in==SOCK_RGBA */
if (ns->sockettype == SOCK_RGBA) {
copy_v4_v4(in, from);
}
else if (ns->sockettype == SOCK_FLOAT) {
in[0] = from[0];
in[1] = from[0];
in[2] = from[0];
in[3] = 1.0f;
}
else {
copy_v3_v3(in, from);
in[3] = 1.0f;
}
}
}
void node_gpu_stack_from_data(struct GPUNodeStack *gs, int type, bNodeStack *ns)
{
memset(gs, 0, sizeof(*gs));
if (ns == NULL) {
/* node_get_stack() will generate NULL bNodeStack pointers for unknown/unsupported types of sockets... */
zero_v4(gs->vec);
gs->link = NULL;
gs->type = GPU_NONE;
gs->hasinput = false;
gs->hasoutput = false;
gs->sockettype = type;
}
else {
nodestack_get_vec(gs->vec, type, ns);
gs->link = ns->data;
if (type == SOCK_FLOAT)
gs->type = GPU_FLOAT;
else if (type == SOCK_INT)
gs->type = GPU_FLOAT; /* HACK: Support as float. */
else if (type == SOCK_VECTOR)
gs->type = GPU_VEC3;
else if (type == SOCK_RGBA)
gs->type = GPU_VEC4;
else if (type == SOCK_SHADER)
gs->type = GPU_CLOSURE;
else
gs->type = GPU_NONE;
gs->hasinput = ns->hasinput && ns->data;
/* XXX Commented out the ns->data check here, as it seems it's not always set,
* even though there *is* a valid connection/output... But that might need
* further investigation.
*/
gs->hasoutput = ns->hasoutput /*&& ns->data*/;
gs->sockettype = ns->sockettype;
}
}
void node_data_from_gpu_stack(bNodeStack *ns, GPUNodeStack *gs)
{
copy_v4_v4(ns->vec, gs->vec);
ns->data = gs->link;
ns->sockettype = gs->sockettype;
}
static void gpu_stack_from_data_list(GPUNodeStack *gs, ListBase *sockets, bNodeStack **ns)
{
bNodeSocket *sock;
int i;
for (sock = sockets->first, i = 0; sock; sock = sock->next, i++)
node_gpu_stack_from_data(&gs[i], sock->type, ns[i]);
gs[i].end = true;
}
static void data_from_gpu_stack_list(ListBase *sockets, bNodeStack **ns, GPUNodeStack *gs)
{
bNodeSocket *sock;
int i;
for (sock = sockets->first, i = 0; sock; sock = sock->next, i++)
node_data_from_gpu_stack(ns[i], &gs[i]);
}
bNode *nodeGetActiveTexture(bNodeTree *ntree)
{
/* this is the node we texture paint and draw in textured draw */
bNode *node, *tnode, *inactivenode = NULL, *activetexnode = NULL, *activegroup = NULL;
bool hasgroup = false;
if (!ntree)
return NULL;
for (node = ntree->nodes.first; node; node = node->next) {
if (node->flag & NODE_ACTIVE_TEXTURE) {
activetexnode = node;
/* if active we can return immediately */
if (node->flag & NODE_ACTIVE)
return node;
}
else if (!inactivenode && node->typeinfo->nclass == NODE_CLASS_TEXTURE)
inactivenode = node;
else if (node->type == NODE_GROUP) {
if (node->flag & NODE_ACTIVE)
activegroup = node;
else
hasgroup = true;
}
}
/* first, check active group for textures */
if (activegroup) {
tnode = nodeGetActiveTexture((bNodeTree *)activegroup->id);
/* active node takes priority, so ignore any other possible nodes here */
if (tnode)
return tnode;
}
if (activetexnode)
return activetexnode;
if (hasgroup) {
/* node active texture node in this tree, look inside groups */
for (node = ntree->nodes.first; node; node = node->next) {
if (node->type == NODE_GROUP) {
tnode = nodeGetActiveTexture((bNodeTree *)node->id);
if (tnode && ((tnode->flag & NODE_ACTIVE_TEXTURE) || !inactivenode))
return tnode;
}
}
}
return inactivenode;
}
void ntreeExecGPUNodes(bNodeTreeExec *exec, GPUMaterial *mat, bNode *output_node)
{
bNodeExec *nodeexec;
bNode *node;
int n;
bNodeStack *stack;
bNodeStack *nsin[MAX_SOCKET]; /* arbitrary... watch this */
bNodeStack *nsout[MAX_SOCKET]; /* arbitrary... watch this */
GPUNodeStack gpuin[MAX_SOCKET + 1], gpuout[MAX_SOCKET + 1];
bool do_it;
stack = exec->stack;
for (n = 0, nodeexec = exec->nodeexec; n < exec->totnodes; ++n, ++nodeexec) {
node = nodeexec->node;
do_it = false;
/* for groups, only execute outputs for edited group */
if (node->typeinfo->nclass == NODE_CLASS_OUTPUT) {
if ((output_node != NULL) && (node == output_node))
do_it = true;
}
else {
do_it = true;
}
if (do_it) {
if (node->typeinfo->gpufunc) {
node_get_stack(node, stack, nsin, nsout);
gpu_stack_from_data_list(gpuin, &node->inputs, nsin);
gpu_stack_from_data_list(gpuout, &node->outputs, nsout);
if (node->typeinfo->gpufunc(mat, node, &nodeexec->data, gpuin, gpuout))
data_from_gpu_stack_list(&node->outputs, nsout, gpuout);
}
}
}
}
void node_shader_gpu_tex_mapping(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *UNUSED(out))
{
NodeTexBase *base = node->storage;
TexMapping *texmap = &base->tex_mapping;
float domin = (texmap->flag & TEXMAP_CLIP_MIN) != 0;
float domax = (texmap->flag & TEXMAP_CLIP_MAX) != 0;
if (domin || domax || !(texmap->flag & TEXMAP_UNIT_MATRIX)) {
static float max[3] = { FLT_MAX, FLT_MAX, FLT_MAX};
static float min[3] = {-FLT_MAX, -FLT_MAX, -FLT_MAX};
GPUNodeLink *tmin, *tmax, *tmat0, *tmat1, *tmat2, *tmat3;
tmin = GPU_uniform((domin) ? texmap->min : min);
tmax = GPU_uniform((domax) ? texmap->max : max);
tmat0 = GPU_uniform((float *)texmap->mat[0]);
tmat1 = GPU_uniform((float *)texmap->mat[1]);
tmat2 = GPU_uniform((float *)texmap->mat[2]);
tmat3 = GPU_uniform((float *)texmap->mat[3]);
GPU_link(mat, "mapping", in[0].link, tmat0, tmat1, tmat2, tmat3, tmin, tmax, &in[0].link);
if (texmap->type == TEXMAP_TYPE_NORMAL)
GPU_link(mat, "texco_norm", in[0].link, &in[0].link);
}
}
|