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
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
|
/*************************************************************************/
/* particles_material.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "particles_material.h"
Mutex *ParticlesMaterial::material_mutex = NULL;
SelfList<ParticlesMaterial>::List ParticlesMaterial::dirty_materials;
Map<ParticlesMaterial::MaterialKey, ParticlesMaterial::ShaderData> ParticlesMaterial::shader_map;
ParticlesMaterial::ShaderNames *ParticlesMaterial::shader_names = NULL;
void ParticlesMaterial::init_shaders() {
#ifndef NO_THREADS
material_mutex = Mutex::create();
#endif
shader_names = memnew(ShaderNames);
shader_names->spread = "spread";
shader_names->flatness = "flatness";
shader_names->initial_linear_velocity = "initial_linear_velocity";
shader_names->initial_angle = "initial_angle";
shader_names->angular_velocity = "angular_velocity";
shader_names->orbit_velocity = "orbit_velocity";
shader_names->linear_accel = "linear_accel";
shader_names->radial_accel = "radial_accel";
shader_names->tangent_accel = "tangent_accel";
shader_names->damping = "damping";
shader_names->scale = "scale";
shader_names->hue_variation = "hue_variation";
shader_names->anim_speed = "anim_speed";
shader_names->anim_offset = "anim_offset";
shader_names->initial_linear_velocity_random = "initial_linear_velocity_random";
shader_names->initial_angle_random = "initial_angle_random";
shader_names->angular_velocity_random = "angular_velocity_random";
shader_names->orbit_velocity_random = "orbit_velocity_random";
shader_names->linear_accel_random = "linear_accel_random";
shader_names->radial_accel_random = "radial_accel_random";
shader_names->tangent_accel_random = "tangent_accel_random";
shader_names->damping_random = "damping_random";
shader_names->scale_random = "scale_random";
shader_names->hue_variation_random = "hue_variation_random";
shader_names->anim_speed_random = "anim_speed_random";
shader_names->anim_offset_random = "anim_offset_random";
shader_names->angle_texture = "angle_texture";
shader_names->angular_velocity_texture = "angular_velocity_texture";
shader_names->orbit_velocity_texture = "orbit_velocity_texture";
shader_names->linear_accel_texture = "linear_accel_texture";
shader_names->radial_accel_texture = "radial_accel_texture";
shader_names->tangent_accel_texture = "tangent_accel_texture";
shader_names->damping_texture = "damping_texture";
shader_names->scale_texture = "scale_texture";
shader_names->hue_variation_texture = "hue_variation_texture";
shader_names->anim_speed_texture = "anim_speed_texture";
shader_names->anim_offset_texture = "anim_offset_texture";
shader_names->color = "color_value";
shader_names->color_ramp = "color_ramp";
shader_names->emission_sphere_radius = "emission_sphere_radius";
shader_names->emission_box_extents = "emission_box_extents";
shader_names->emission_texture_point_count = "emission_texture_point_count";
shader_names->emission_texture_points = "emission_texture_points";
shader_names->emission_texture_normal = "emission_texture_normal";
shader_names->emission_texture_color = "emission_texture_color";
shader_names->trail_divisor = "trail_divisor";
shader_names->trail_size_modifier = "trail_size_modifier";
shader_names->trail_color_modifier = "trail_color_modifier";
shader_names->gravity = "gravity";
}
void ParticlesMaterial::finish_shaders() {
#ifndef NO_THREADS
memdelete(material_mutex);
#endif
memdelete(shader_names);
}
void ParticlesMaterial::_update_shader() {
dirty_materials.remove(&element);
MaterialKey mk = _compute_key();
if (mk.key == current_key.key)
return; //no update required in the end
if (shader_map.has(current_key)) {
shader_map[current_key].users--;
if (shader_map[current_key].users == 0) {
//deallocate shader, as it's no longer in use
VS::get_singleton()->free(shader_map[current_key].shader);
shader_map.erase(current_key);
}
}
current_key = mk;
if (shader_map.has(mk)) {
VS::get_singleton()->material_set_shader(_get_material(), shader_map[mk].shader);
shader_map[mk].users++;
return;
}
//must create a shader!
String code = "shader_type particles;\n";
code += "uniform float spread;\n";
code += "uniform float flatness;\n";
code += "uniform float initial_linear_velocity;\n";
code += "uniform float initial_angle;\n";
code += "uniform float angular_velocity;\n";
code += "uniform float orbit_velocity;\n";
code += "uniform float linear_accel;\n";
code += "uniform float radial_accel;\n";
code += "uniform float tangent_accel;\n";
code += "uniform float damping;\n";
code += "uniform float scale;\n";
code += "uniform float hue_variation;\n";
code += "uniform float anim_speed;\n";
code += "uniform float anim_offset;\n";
code += "uniform float initial_linear_velocity_random;\n";
code += "uniform float initial_angle_random;\n";
code += "uniform float angular_velocity_random;\n";
code += "uniform float orbit_velocity_random;\n";
code += "uniform float linear_accel_random;\n";
code += "uniform float radial_accel_random;\n";
code += "uniform float tangent_accel_random;\n";
code += "uniform float damping_random;\n";
code += "uniform float scale_random;\n";
code += "uniform float hue_variation_random;\n";
code += "uniform float anim_speed_random;\n";
code += "uniform float anim_offset_random;\n";
switch (emission_shape) {
case EMISSION_SHAPE_POINT: {
//do none
} break;
case EMISSION_SHAPE_SPHERE: {
code += "uniform float emission_sphere_radius;\n";
} break;
case EMISSION_SHAPE_BOX: {
code += "uniform vec3 emission_box_extents;\n";
} break;
case EMISSION_SHAPE_DIRECTED_POINTS: {
code += "uniform sampler2D emission_texture_normal : hint_black;\n";
} //fallthrough
case EMISSION_SHAPE_POINTS: {
code += "uniform sampler2D emission_texture_points : hint_black;\n";
code += "uniform int emission_texture_point_count;\n";
if (emission_color_texture.is_valid()) {
code += "uniform sampler2D emission_texture_color : hint_white;\n";
}
} break;
}
code += "uniform vec4 color_value : hint_color;\n";
code += "uniform int trail_divisor;\n";
code += "uniform vec3 gravity;\n";
if (color_ramp.is_valid())
code += "uniform sampler2D color_ramp;\n";
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid())
code += "uniform sampler2D linear_velocity_texture;\n";
if (tex_parameters[PARAM_ORBIT_VELOCITY].is_valid())
code += "uniform sampler2D orbit_velocity_texture;\n";
if (tex_parameters[PARAM_ANGULAR_VELOCITY].is_valid())
code += "uniform sampler2D angular_velocity_texture;\n";
if (tex_parameters[PARAM_LINEAR_ACCEL].is_valid())
code += "uniform sampler2D linear_accel_texture;\n";
if (tex_parameters[PARAM_RADIAL_ACCEL].is_valid())
code += "uniform sampler2D radial_accel_texture;\n";
if (tex_parameters[PARAM_TANGENTIAL_ACCEL].is_valid())
code += "uniform sampler2D tangent_accel_texture;\n";
if (tex_parameters[PARAM_DAMPING].is_valid())
code += "uniform sampler2D damping_texture;\n";
if (tex_parameters[PARAM_ANGLE].is_valid())
code += "uniform sampler2D angle_texture;\n";
if (tex_parameters[PARAM_SCALE].is_valid())
code += "uniform sampler2D scale_texture;\n";
if (tex_parameters[PARAM_HUE_VARIATION].is_valid())
code += "uniform sampler2D hue_variation_texture;\n";
if (tex_parameters[PARAM_ANIM_SPEED].is_valid())
code += "uniform sampler2D anim_speed_texture;\n";
if (tex_parameters[PARAM_ANIM_OFFSET].is_valid())
code += "uniform sampler2D anim_offset_texture;\n";
if (trail_size_modifier.is_valid()) {
code += "uniform sampler2D trail_size_modifier;\n";
}
if (trail_color_modifier.is_valid()) {
code += "uniform sampler2D trail_color_modifier;\n";
}
//need a random function
code += "\n\n";
code += "float rand_from_seed(inout uint seed) {\n";
code += " int k;\n";
code += " int s = int(seed);\n";
code += " if (s == 0)\n";
code += " s = 305420679;\n";
code += " k = s / 127773;\n";
code += " s = 16807 * (s - k * 127773) - 2836 * k;\n";
code += " if (s < 0)\n";
code += " s += 2147483647;\n";
code += " seed = uint(s);\n";
code += " return float(seed % uint(65536)) / 65535.0;\n";
code += "}\n";
code += "\n";
code += "float rand_from_seed_m1_p1(inout uint seed) {\n";
code += " return rand_from_seed(seed) * 2.0 - 1.0;\n";
code += "}\n";
code += "\n";
//improve seed quality
code += "uint hash(uint x) {\n";
code += " x = ((x >> uint(16)) ^ x) * uint(73244475);\n";
code += " x = ((x >> uint(16)) ^ x) * uint(73244475);\n";
code += " x = (x >> uint(16)) ^ x;\n";
code += " return x;\n";
code += "}\n";
code += "\n";
code += "void vertex() {\n";
code += " uint base_number = NUMBER / uint(trail_divisor);\n";
code += " uint alt_seed = hash(base_number + uint(1) + RANDOM_SEED);\n";
code += " float angle_rand = rand_from_seed(alt_seed);\n";
code += " float scale_rand = rand_from_seed(alt_seed);\n";
code += " float hue_rot_rand = rand_from_seed(alt_seed);\n";
code += " float anim_offset_rand = rand_from_seed(alt_seed);\n";
code += " float pi = 3.14159;\n";
code += " float degree_to_rad = pi / 180.0;\n";
code += "\n";
if (emission_shape >= EMISSION_SHAPE_POINTS) {
code += " int point = min(emission_texture_point_count - 1, int(rand_from_seed(alt_seed) * float(emission_texture_point_count)));\n";
code += " ivec2 emission_tex_size = textureSize(emission_texture_points, 0);\n";
code += " ivec2 emission_tex_ofs = ivec2(point % emission_tex_size.x, point / emission_tex_size.x);\n";
}
code += " if (RESTART) {\n";
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid())
code += " float tex_linear_velocity = textureLod(linear_velocity_texture, vec2(0.0, 0.0), 0.0).r;\n";
else
code += " float tex_linear_velocity = 0.0;\n";
if (tex_parameters[PARAM_ANGLE].is_valid())
code += " float tex_angle = textureLod(angle_texture, vec2(0.0, 0.0), 0.0).r;\n";
else
code += " float tex_angle = 0.0;\n";
if (tex_parameters[PARAM_ANIM_OFFSET].is_valid())
code += " float tex_anim_offset = textureLod(anim_offset_texture, vec2(0.0, 0.0), 0.0).r;\n";
else
code += " float tex_anim_offset = 0.0;\n";
code += " float spread_rad = spread * degree_to_rad;\n";
if (flags[FLAG_DISABLE_Z]) {
code += " float angle1_rad = rand_from_seed_m1_p1(alt_seed) * spread_rad;\n";
code += " vec3 rot = vec3(cos(angle1_rad), sin(angle1_rad), 0.0);\n";
code += " VELOCITY = rot * initial_linear_velocity * mix(1.0, rand_from_seed(alt_seed), initial_linear_velocity_random);\n";
} else {
//initiate velocity spread in 3D
code += " float angle1_rad = rand_from_seed_m1_p1(alt_seed) * spread_rad;\n";
code += " float angle2_rad = rand_from_seed_m1_p1(alt_seed) * spread_rad * (1.0 - flatness);\n";
code += " vec3 direction_xz = vec3(sin(angle1_rad), 0, cos(angle1_rad));\n";
code += " vec3 direction_yz = vec3(0, sin(angle2_rad), cos(angle2_rad));\n";
code += " direction_yz.z = direction_yz.z / max(0.0001,sqrt(abs(direction_yz.z))); // better uniform distribution\n";
code += " vec3 direction = vec3(direction_xz.x * direction_yz.z, direction_yz.y, direction_xz.z * direction_yz.z);\n";
code += " direction = normalize(direction);\n";
code += " VELOCITY = direction * initial_linear_velocity * mix(1.0, rand_from_seed(alt_seed), initial_linear_velocity_random);\n";
}
code += " float base_angle = (initial_angle + tex_angle) * mix(1.0, angle_rand, initial_angle_random);\n";
code += " CUSTOM.x = base_angle * degree_to_rad;\n"; // angle
code += " CUSTOM.y = 0.0;\n"; // phase
code += " CUSTOM.z = (anim_offset + tex_anim_offset) * mix(1.0, anim_offset_rand, anim_offset_random);\n"; // animation offset (0-1)
switch (emission_shape) {
case EMISSION_SHAPE_POINT: {
//do none
} break;
case EMISSION_SHAPE_SPHERE: {
code += " TRANSFORM[3].xyz = normalize(vec3(rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0)) * emission_sphere_radius;\n";
} break;
case EMISSION_SHAPE_BOX: {
code += " TRANSFORM[3].xyz = vec3(rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0) * emission_box_extents;\n";
} break;
case EMISSION_SHAPE_POINTS:
case EMISSION_SHAPE_DIRECTED_POINTS: {
code += " TRANSFORM[3].xyz = texelFetch(emission_texture_points, emission_tex_ofs, 0).xyz;\n";
if (emission_shape == EMISSION_SHAPE_DIRECTED_POINTS) {
if (flags[FLAG_DISABLE_Z]) {
code += " mat2 rotm;";
code += " rotm[0] = texelFetch(emission_texture_normal, emission_tex_ofs, 0).xy;\n";
code += " rotm[1] = rotm[0].yx * vec2(1.0, -1.0);\n";
code += " VELOCITY.xy = rotm * VELOCITY.xy;\n";
} else {
code += " vec3 normal = texelFetch(emission_texture_normal, emission_tex_ofs, 0).xyz;\n";
code += " vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0, 1.0, 0.0);\n";
code += " vec3 tangent = normalize(cross(v0, normal));\n";
code += " vec3 bitangent = normalize(cross(tangent, normal));\n";
code += " VELOCITY = mat3(tangent, bitangent, normal) * VELOCITY;\n";
}
}
} break;
}
code += " VELOCITY = (EMISSION_TRANSFORM * vec4(VELOCITY, 0.0)).xyz;\n";
code += " TRANSFORM = EMISSION_TRANSFORM * TRANSFORM;\n";
if (flags[FLAG_DISABLE_Z]) {
code += " VELOCITY.z = 0.0;\n";
code += " TRANSFORM[3].z = 0.0;\n";
}
code += " } else {\n";
code += " CUSTOM.y += DELTA / LIFETIME;\n";
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid())
code += " float tex_linear_velocity = textureLod(linear_velocity_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_linear_velocity = 0.0;\n";
if (flags[FLAG_DISABLE_Z]) {
if (tex_parameters[PARAM_ORBIT_VELOCITY].is_valid())
code += " float tex_orbit_velocity = textureLod(orbit_velocity_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_orbit_velocity = 0.0;\n";
}
if (tex_parameters[PARAM_ANGULAR_VELOCITY].is_valid())
code += " float tex_angular_velocity = textureLod(angular_velocity_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_angular_velocity = 0.0;\n";
if (tex_parameters[PARAM_LINEAR_ACCEL].is_valid())
code += " float tex_linear_accel = textureLod(linear_accel_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_linear_accel = 0.0;\n";
if (tex_parameters[PARAM_RADIAL_ACCEL].is_valid())
code += " float tex_radial_accel = textureLod(radial_accel_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_radial_accel = 0.0;\n";
if (tex_parameters[PARAM_TANGENTIAL_ACCEL].is_valid())
code += " float tex_tangent_accel = textureLod(tangent_accel_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_tangent_accel = 0.0;\n";
if (tex_parameters[PARAM_DAMPING].is_valid())
code += " float tex_damping = textureLod(damping_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_damping = 0.0;\n";
if (tex_parameters[PARAM_ANGLE].is_valid())
code += " float tex_angle = textureLod(angle_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_angle = 0.0;\n";
if (tex_parameters[PARAM_ANIM_SPEED].is_valid())
code += " float tex_anim_speed = textureLod(anim_speed_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_anim_speed = 0.0;\n";
if (tex_parameters[PARAM_ANIM_OFFSET].is_valid())
code += " float tex_anim_offset = textureLod(anim_offset_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_anim_offset = 0.0;\n";
code += " vec3 force = gravity;\n";
code += " vec3 pos = TRANSFORM[3].xyz;\n";
if (flags[FLAG_DISABLE_Z]) {
code += " pos.z = 0.0;\n";
}
code += " // apply linear acceleration\n";
code += " force += length(VELOCITY) > 0.0 ? normalize(VELOCITY) * (linear_accel + tex_linear_accel) * mix(1.0, rand_from_seed(alt_seed), linear_accel_random) : vec3(0.0);\n";
code += " // apply radial acceleration\n";
code += " vec3 org = EMISSION_TRANSFORM[3].xyz;\n";
code += " vec3 diff = pos - org;\n";
code += " force += length(diff) > 0.0 ? normalize(diff) * (radial_accel + tex_radial_accel) * mix(1.0, rand_from_seed(alt_seed), radial_accel_random) : vec3(0.0);\n";
code += " // apply tangential acceleration;\n";
if (flags[FLAG_DISABLE_Z]) {
code += " force += length(diff.yx) > 0.0 ? vec3(normalize(diff.yx * vec2(-1.0, 1.0)), 0.0) * ((tangent_accel + tex_tangent_accel) * mix(1.0, rand_from_seed(alt_seed), tangent_accel_random)) : vec3(0.0);\n";
} else {
code += " vec3 crossDiff = cross(normalize(diff), normalize(gravity));\n";
code += " force += length(crossDiff) > 0.0 ? normalize(crossDiff) * ((tangent_accel + tex_tangent_accel) * mix(1.0, rand_from_seed(alt_seed), tangent_accel_random)) : vec3(0.0);\n";
}
code += " // apply attractor forces\n";
code += " VELOCITY += force * DELTA;\n";
code += " // orbit velocity\n";
if (flags[FLAG_DISABLE_Z]) {
code += " float orbit_amount = (orbit_velocity + tex_orbit_velocity) * mix(1.0, rand_from_seed(alt_seed), orbit_velocity_random);\n";
code += " if (orbit_amount != 0.0) {\n";
code += " float ang = orbit_amount * DELTA * pi * 2.0;\n";
code += " mat2 rot = mat2(vec2(cos(ang), -sin(ang)), vec2(sin(ang), cos(ang)));\n";
code += " TRANSFORM[3].xy -= diff.xy;\n";
code += " TRANSFORM[3].xy += rot * diff.xy;\n";
code += " }\n";
}
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
code += " VELOCITY = normalize(VELOCITY) * tex_linear_velocity;\n";
}
code += " if (damping + tex_damping > 0.0) {\n";
code += " float v = length(VELOCITY);\n";
code += " float damp = (damping + tex_damping) * mix(1.0, rand_from_seed(alt_seed), damping_random);\n";
code += " v -= damp * DELTA;\n";
code += " if (v < 0.0) {\n";
code += " VELOCITY = vec3(0.0);\n";
code += " } else {\n";
code += " VELOCITY = normalize(VELOCITY) * v;\n";
code += " }\n";
code += " }\n";
code += " float base_angle = (initial_angle + tex_angle) * mix(1.0, angle_rand, initial_angle_random);\n";
code += " base_angle += CUSTOM.y * LIFETIME * (angular_velocity + tex_angular_velocity) * mix(1.0, rand_from_seed(alt_seed) * 2.0 - 1.0, angular_velocity_random);\n";
code += " CUSTOM.x = base_angle * degree_to_rad;\n"; // angle
code += " CUSTOM.z = (anim_offset + tex_anim_offset) * mix(1.0, anim_offset_rand, anim_offset_random) + CUSTOM.y * (anim_speed + tex_anim_speed) * mix(1.0, rand_from_seed(alt_seed), anim_speed_random);\n"; // angle
code += " }\n";
// apply color
// apply hue rotation
if (tex_parameters[PARAM_SCALE].is_valid())
code += " float tex_scale = textureLod(scale_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_scale = 1.0;\n";
if (tex_parameters[PARAM_HUE_VARIATION].is_valid())
code += " float tex_hue_variation = textureLod(hue_variation_texture, vec2(CUSTOM.y, 0.0), 0.0).r;\n";
else
code += " float tex_hue_variation = 0.0;\n";
code += " float hue_rot_angle = (hue_variation + tex_hue_variation) * pi * 2.0 * mix(1.0, hue_rot_rand * 2.0 - 1.0, hue_variation_random);\n";
code += " float hue_rot_c = cos(hue_rot_angle);\n";
code += " float hue_rot_s = sin(hue_rot_angle);\n";
code += " mat4 hue_rot_mat = mat4(vec4(0.299, 0.587, 0.114, 0.0),\n";
code += " vec4(0.299, 0.587, 0.114, 0.0),\n";
code += " vec4(0.299, 0.587, 0.114, 0.0),\n";
code += " vec4(0.000, 0.000, 0.000, 1.0)) +\n";
code += " mat4(vec4(0.701, -0.587, -0.114, 0.0),\n";
code += " vec4(-0.299, 0.413, -0.114, 0.0),\n";
code += " vec4(-0.300, -0.588, 0.886, 0.0),\n";
code += " vec4(0.000, 0.000, 0.000, 0.0)) * hue_rot_c +\n";
code += " mat4(vec4(0.168, 0.330, -0.497, 0.0),\n";
code += " vec4(-0.328, 0.035, 0.292, 0.0),\n";
code += " vec4(1.250, -1.050, -0.203, 0.0),\n";
code += " vec4(0.000, 0.000, 0.000, 0.0)) * hue_rot_s;\n";
if (color_ramp.is_valid()) {
code += " COLOR = hue_rot_mat * textureLod(color_ramp, vec2(CUSTOM.y, 0.0), 0.0);\n";
} else {
code += " COLOR = hue_rot_mat * color_value;\n";
}
if (emission_color_texture.is_valid() && emission_shape >= EMISSION_SHAPE_POINTS) {
code += " COLOR *= texelFetch(emission_texture_color, emission_tex_ofs, 0);\n";
}
if (trail_color_modifier.is_valid()) {
code += " if (trail_divisor > 1) {\n";
code += " COLOR *= textureLod(trail_color_modifier, vec2(float(int(NUMBER) % trail_divisor) / float(trail_divisor - 1), 0.0), 0.0);\n";
code += " }\n";
}
code += "\n";
if (flags[FLAG_DISABLE_Z]) {
if (flags[FLAG_ALIGN_Y_TO_VELOCITY]) {
code += " if (length(VELOCITY) > 0.0) {\n";
code += " TRANSFORM[1].xyz = normalize(VELOCITY);\n";
code += " } else {\n";
code += " TRANSFORM[1].xyz = normalize(TRANSFORM[1].xyz);\n";
code += " }\n";
code += " TRANSFORM[0].xyz = normalize(cross(TRANSFORM[1].xyz, TRANSFORM[2].xyz));\n";
code += " TRANSFORM[2] = vec4(0.0, 0.0, 1.0, 0.0);\n";
} else {
code += " TRANSFORM[0] = vec4(cos(CUSTOM.x), -sin(CUSTOM.x), 0.0, 0.0);\n";
code += " TRANSFORM[1] = vec4(sin(CUSTOM.x), cos(CUSTOM.x), 0.0, 0.0);\n";
code += " TRANSFORM[2] = vec4(0.0, 0.0, 1.0, 0.0);\n";
}
} else {
// orient particle Y towards velocity
if (flags[FLAG_ALIGN_Y_TO_VELOCITY]) {
code += " if (length(VELOCITY) > 0.0) {\n";
code += " TRANSFORM[1].xyz = normalize(VELOCITY);\n";
code += " } else {\n";
code += " TRANSFORM[1].xyz = normalize(TRANSFORM[1].xyz);\n";
code += " }\n";
code += " if (TRANSFORM[1].xyz == normalize(TRANSFORM[0].xyz)) {\n";
code += " TRANSFORM[0].xyz = normalize(cross(normalize(TRANSFORM[1].xyz), normalize(TRANSFORM[2].xyz)));\n";
code += " TRANSFORM[2].xyz = normalize(cross(normalize(TRANSFORM[0].xyz), normalize(TRANSFORM[1].xyz)));\n";
code += " } else {\n";
code += " TRANSFORM[2].xyz = normalize(cross(normalize(TRANSFORM[0].xyz), normalize(TRANSFORM[1].xyz)));\n";
code += " TRANSFORM[0].xyz = normalize(cross(normalize(TRANSFORM[1].xyz), normalize(TRANSFORM[2].xyz)));\n";
code += " }\n";
} else {
code += " TRANSFORM[0].xyz = normalize(TRANSFORM[0].xyz);\n";
code += " TRANSFORM[1].xyz = normalize(TRANSFORM[1].xyz);\n";
code += " TRANSFORM[2].xyz = normalize(TRANSFORM[2].xyz);\n";
}
// turn particle by rotation in Y
if (flags[FLAG_ROTATE_Y]) {
code += " TRANSFORM = TRANSFORM * mat4(vec4(cos(CUSTOM.x), 0.0, -sin(CUSTOM.x), 0.0), vec4(0.0, 1.0, 0.0, 0.0), vec4(sin(CUSTOM.x), 0.0, cos(CUSTOM.x), 0.0), vec4(0.0, 0.0, 0.0, 1.0));\n";
}
}
//scale by scale
code += " float base_scale = mix(scale * tex_scale, 1.0, scale_random * scale_rand);\n";
code += " if (base_scale == 0.0) {\n";
code += " base_scale = 0.000001;\n";
code += " }\n";
if (trail_size_modifier.is_valid()) {
code += " if (trail_divisor > 1) {\n";
code += " base_scale *= textureLod(trail_size_modifier, vec2(float(int(NUMBER) % trail_divisor) / float(trail_divisor - 1), 0.0), 0.0).r;\n";
code += " }\n";
}
code += " TRANSFORM[0].xyz *= base_scale;\n";
code += " TRANSFORM[1].xyz *= base_scale;\n";
code += " TRANSFORM[2].xyz *= base_scale;\n";
if (flags[FLAG_DISABLE_Z]) {
code += " VELOCITY.z = 0.0;\n";
code += " TRANSFORM[3].z = 0.0;\n";
}
code += "}\n";
code += "\n";
ShaderData shader_data;
shader_data.shader = VS::get_singleton()->shader_create();
shader_data.users = 1;
VS::get_singleton()->shader_set_code(shader_data.shader, code);
shader_map[mk] = shader_data;
VS::get_singleton()->material_set_shader(_get_material(), shader_data.shader);
}
void ParticlesMaterial::flush_changes() {
if (material_mutex)
material_mutex->lock();
while (dirty_materials.first()) {
dirty_materials.first()->self()->_update_shader();
}
if (material_mutex)
material_mutex->unlock();
}
void ParticlesMaterial::_queue_shader_change() {
if (material_mutex)
material_mutex->lock();
if (!element.in_list()) {
dirty_materials.add(&element);
}
if (material_mutex)
material_mutex->unlock();
}
bool ParticlesMaterial::_is_shader_dirty() const {
bool dirty = false;
if (material_mutex)
material_mutex->lock();
dirty = element.in_list();
if (material_mutex)
material_mutex->unlock();
return dirty;
}
void ParticlesMaterial::set_spread(float p_spread) {
spread = p_spread;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->spread, p_spread);
}
float ParticlesMaterial::get_spread() const {
return spread;
}
void ParticlesMaterial::set_flatness(float p_flatness) {
flatness = p_flatness;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->flatness, p_flatness);
}
float ParticlesMaterial::get_flatness() const {
return flatness;
}
void ParticlesMaterial::set_param(Parameter p_param, float p_value) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
parameters[p_param] = p_value;
switch (p_param) {
case PARAM_INITIAL_LINEAR_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->initial_linear_velocity, p_value);
} break;
case PARAM_ANGULAR_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->angular_velocity, p_value);
} break;
case PARAM_ORBIT_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->orbit_velocity, p_value);
} break;
case PARAM_LINEAR_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->linear_accel, p_value);
} break;
case PARAM_RADIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->radial_accel, p_value);
} break;
case PARAM_TANGENTIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->tangent_accel, p_value);
} break;
case PARAM_DAMPING: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->damping, p_value);
} break;
case PARAM_ANGLE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->initial_angle, p_value);
} break;
case PARAM_SCALE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->scale, p_value);
} break;
case PARAM_HUE_VARIATION: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->hue_variation, p_value);
} break;
case PARAM_ANIM_SPEED: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_speed, p_value);
} break;
case PARAM_ANIM_OFFSET: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset, p_value);
} break;
case PARAM_MAX: break; // Can't happen, but silences warning
}
}
float ParticlesMaterial::get_param(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
return parameters[p_param];
}
void ParticlesMaterial::set_param_randomness(Parameter p_param, float p_value) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
randomness[p_param] = p_value;
switch (p_param) {
case PARAM_INITIAL_LINEAR_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->initial_linear_velocity_random, p_value);
} break;
case PARAM_ANGULAR_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->angular_velocity_random, p_value);
} break;
case PARAM_ORBIT_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->orbit_velocity_random, p_value);
} break;
case PARAM_LINEAR_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->linear_accel_random, p_value);
} break;
case PARAM_RADIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->radial_accel_random, p_value);
} break;
case PARAM_TANGENTIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->tangent_accel_random, p_value);
} break;
case PARAM_DAMPING: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->damping_random, p_value);
} break;
case PARAM_ANGLE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->initial_angle_random, p_value);
} break;
case PARAM_SCALE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->scale_random, p_value);
} break;
case PARAM_HUE_VARIATION: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->hue_variation_random, p_value);
} break;
case PARAM_ANIM_SPEED: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_speed_random, p_value);
} break;
case PARAM_ANIM_OFFSET: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset_random, p_value);
} break;
case PARAM_MAX: break; // Can't happen, but silences warning
}
}
float ParticlesMaterial::get_param_randomness(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
return randomness[p_param];
}
static void _adjust_curve_range(const Ref<Texture> &p_texture, float p_min, float p_max) {
Ref<CurveTexture> curve_tex = p_texture;
if (!curve_tex.is_valid())
return;
curve_tex->ensure_default_setup(p_min, p_max);
}
void ParticlesMaterial::set_param_texture(Parameter p_param, const Ref<Texture> &p_texture) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
tex_parameters[p_param] = p_texture;
switch (p_param) {
case PARAM_INITIAL_LINEAR_VELOCITY: {
//do none for this one
} break;
case PARAM_ANGULAR_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->angular_velocity_texture, p_texture);
_adjust_curve_range(p_texture, -360, 360);
} break;
case PARAM_ORBIT_VELOCITY: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->orbit_velocity_texture, p_texture);
_adjust_curve_range(p_texture, -500, 500);
} break;
case PARAM_LINEAR_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->linear_accel_texture, p_texture);
_adjust_curve_range(p_texture, -200, 200);
} break;
case PARAM_RADIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->radial_accel_texture, p_texture);
_adjust_curve_range(p_texture, -200, 200);
} break;
case PARAM_TANGENTIAL_ACCEL: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->tangent_accel_texture, p_texture);
_adjust_curve_range(p_texture, -200, 200);
} break;
case PARAM_DAMPING: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->damping_texture, p_texture);
_adjust_curve_range(p_texture, 0, 100);
} break;
case PARAM_ANGLE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->angle_texture, p_texture);
_adjust_curve_range(p_texture, -360, 360);
} break;
case PARAM_SCALE: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->scale_texture, p_texture);
_adjust_curve_range(p_texture, 0, 1);
} break;
case PARAM_HUE_VARIATION: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->hue_variation_texture, p_texture);
_adjust_curve_range(p_texture, -1, 1);
} break;
case PARAM_ANIM_SPEED: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_speed_texture, p_texture);
_adjust_curve_range(p_texture, 0, 200);
} break;
case PARAM_ANIM_OFFSET: {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset_texture, p_texture);
} break;
case PARAM_MAX: break; // Can't happen, but silences warning
}
_queue_shader_change();
}
Ref<Texture> ParticlesMaterial::get_param_texture(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, Ref<Texture>());
return tex_parameters[p_param];
}
void ParticlesMaterial::set_color(const Color &p_color) {
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->color, p_color);
color = p_color;
}
Color ParticlesMaterial::get_color() const {
return color;
}
void ParticlesMaterial::set_color_ramp(const Ref<Texture> &p_texture) {
color_ramp = p_texture;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->color_ramp, p_texture);
_queue_shader_change();
_change_notify();
}
Ref<Texture> ParticlesMaterial::get_color_ramp() const {
return color_ramp;
}
void ParticlesMaterial::set_flag(Flags p_flag, bool p_enable) {
ERR_FAIL_INDEX(p_flag, FLAG_MAX);
flags[p_flag] = p_enable;
_queue_shader_change();
if (p_flag == FLAG_DISABLE_Z) {
_change_notify();
}
}
bool ParticlesMaterial::get_flag(Flags p_flag) const {
ERR_FAIL_INDEX_V(p_flag, FLAG_MAX, false);
return flags[p_flag];
}
void ParticlesMaterial::set_emission_shape(EmissionShape p_shape) {
emission_shape = p_shape;
_change_notify();
_queue_shader_change();
}
void ParticlesMaterial::set_emission_sphere_radius(float p_radius) {
emission_sphere_radius = p_radius;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_sphere_radius, p_radius);
}
void ParticlesMaterial::set_emission_box_extents(Vector3 p_extents) {
emission_box_extents = p_extents;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_box_extents, p_extents);
}
void ParticlesMaterial::set_emission_point_texture(const Ref<Texture> &p_points) {
emission_point_texture = p_points;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_texture_points, p_points);
}
void ParticlesMaterial::set_emission_normal_texture(const Ref<Texture> &p_normals) {
emission_normal_texture = p_normals;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_texture_normal, p_normals);
}
void ParticlesMaterial::set_emission_color_texture(const Ref<Texture> &p_colors) {
emission_color_texture = p_colors;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_texture_color, p_colors);
_queue_shader_change();
}
void ParticlesMaterial::set_emission_point_count(int p_count) {
emission_point_count = p_count;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->emission_texture_point_count, p_count);
}
ParticlesMaterial::EmissionShape ParticlesMaterial::get_emission_shape() const {
return emission_shape;
}
float ParticlesMaterial::get_emission_sphere_radius() const {
return emission_sphere_radius;
}
Vector3 ParticlesMaterial::get_emission_box_extents() const {
return emission_box_extents;
}
Ref<Texture> ParticlesMaterial::get_emission_point_texture() const {
return emission_point_texture;
}
Ref<Texture> ParticlesMaterial::get_emission_normal_texture() const {
return emission_normal_texture;
}
Ref<Texture> ParticlesMaterial::get_emission_color_texture() const {
return emission_color_texture;
}
int ParticlesMaterial::get_emission_point_count() const {
return emission_point_count;
}
void ParticlesMaterial::set_trail_divisor(int p_divisor) {
trail_divisor = p_divisor;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->trail_divisor, p_divisor);
}
int ParticlesMaterial::get_trail_divisor() const {
return trail_divisor;
}
void ParticlesMaterial::set_trail_size_modifier(const Ref<CurveTexture> &p_trail_size_modifier) {
trail_size_modifier = p_trail_size_modifier;
Ref<CurveTexture> curve = trail_size_modifier;
if (curve.is_valid()) {
curve->ensure_default_setup();
}
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->trail_size_modifier, curve);
_queue_shader_change();
}
Ref<CurveTexture> ParticlesMaterial::get_trail_size_modifier() const {
return trail_size_modifier;
}
void ParticlesMaterial::set_trail_color_modifier(const Ref<GradientTexture> &p_trail_color_modifier) {
trail_color_modifier = p_trail_color_modifier;
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->trail_color_modifier, p_trail_color_modifier);
_queue_shader_change();
}
Ref<GradientTexture> ParticlesMaterial::get_trail_color_modifier() const {
return trail_color_modifier;
}
void ParticlesMaterial::set_gravity(const Vector3 &p_gravity) {
gravity = p_gravity;
Vector3 gset = gravity;
if (gset == Vector3()) {
gset = Vector3(0, -0.000001, 0); //as gravity is used as upvector in some calculations
}
VisualServer::get_singleton()->material_set_param(_get_material(), shader_names->gravity, gset);
}
Vector3 ParticlesMaterial::get_gravity() const {
return gravity;
}
RID ParticlesMaterial::get_shader_rid() const {
ERR_FAIL_COND_V(!shader_map.has(current_key), RID());
return shader_map[current_key].shader;
}
void ParticlesMaterial::_validate_property(PropertyInfo &property) const {
if (property.name == "color" && color_ramp.is_valid()) {
property.usage = 0;
}
if (property.name == "emission_sphere_radius" && emission_shape != EMISSION_SHAPE_SPHERE) {
property.usage = 0;
}
if (property.name == "emission_box_extents" && emission_shape != EMISSION_SHAPE_BOX) {
property.usage = 0;
}
if ((property.name == "emission_point_texture" || property.name == "emission_color_texture") && (emission_shape < EMISSION_SHAPE_POINTS)) {
property.usage = 0;
}
if (property.name == "emission_normal_texture" && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
property.usage = 0;
}
if (property.name == "emission_point_count" && (emission_shape != EMISSION_SHAPE_POINTS && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS)) {
property.usage = 0;
}
if (property.name.begins_with("orbit_") && !flags[FLAG_DISABLE_Z]) {
property.usage = 0;
}
}
Shader::Mode ParticlesMaterial::get_shader_mode() const {
return Shader::MODE_PARTICLES;
}
void ParticlesMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_spread", "degrees"), &ParticlesMaterial::set_spread);
ClassDB::bind_method(D_METHOD("get_spread"), &ParticlesMaterial::get_spread);
ClassDB::bind_method(D_METHOD("set_flatness", "amount"), &ParticlesMaterial::set_flatness);
ClassDB::bind_method(D_METHOD("get_flatness"), &ParticlesMaterial::get_flatness);
ClassDB::bind_method(D_METHOD("set_param", "param", "value"), &ParticlesMaterial::set_param);
ClassDB::bind_method(D_METHOD("get_param", "param"), &ParticlesMaterial::get_param);
ClassDB::bind_method(D_METHOD("set_param_randomness", "param", "randomness"), &ParticlesMaterial::set_param_randomness);
ClassDB::bind_method(D_METHOD("get_param_randomness", "param"), &ParticlesMaterial::get_param_randomness);
ClassDB::bind_method(D_METHOD("set_param_texture", "param", "texture"), &ParticlesMaterial::set_param_texture);
ClassDB::bind_method(D_METHOD("get_param_texture", "param"), &ParticlesMaterial::get_param_texture);
ClassDB::bind_method(D_METHOD("set_color", "color"), &ParticlesMaterial::set_color);
ClassDB::bind_method(D_METHOD("get_color"), &ParticlesMaterial::get_color);
ClassDB::bind_method(D_METHOD("set_color_ramp", "ramp"), &ParticlesMaterial::set_color_ramp);
ClassDB::bind_method(D_METHOD("get_color_ramp"), &ParticlesMaterial::get_color_ramp);
ClassDB::bind_method(D_METHOD("set_flag", "flag", "enable"), &ParticlesMaterial::set_flag);
ClassDB::bind_method(D_METHOD("get_flag", "flag"), &ParticlesMaterial::get_flag);
ClassDB::bind_method(D_METHOD("set_emission_shape", "shape"), &ParticlesMaterial::set_emission_shape);
ClassDB::bind_method(D_METHOD("get_emission_shape"), &ParticlesMaterial::get_emission_shape);
ClassDB::bind_method(D_METHOD("set_emission_sphere_radius", "radius"), &ParticlesMaterial::set_emission_sphere_radius);
ClassDB::bind_method(D_METHOD("get_emission_sphere_radius"), &ParticlesMaterial::get_emission_sphere_radius);
ClassDB::bind_method(D_METHOD("set_emission_box_extents", "extents"), &ParticlesMaterial::set_emission_box_extents);
ClassDB::bind_method(D_METHOD("get_emission_box_extents"), &ParticlesMaterial::get_emission_box_extents);
ClassDB::bind_method(D_METHOD("set_emission_point_texture", "texture"), &ParticlesMaterial::set_emission_point_texture);
ClassDB::bind_method(D_METHOD("get_emission_point_texture"), &ParticlesMaterial::get_emission_point_texture);
ClassDB::bind_method(D_METHOD("set_emission_normal_texture", "texture"), &ParticlesMaterial::set_emission_normal_texture);
ClassDB::bind_method(D_METHOD("get_emission_normal_texture"), &ParticlesMaterial::get_emission_normal_texture);
ClassDB::bind_method(D_METHOD("set_emission_color_texture", "texture"), &ParticlesMaterial::set_emission_color_texture);
ClassDB::bind_method(D_METHOD("get_emission_color_texture"), &ParticlesMaterial::get_emission_color_texture);
ClassDB::bind_method(D_METHOD("set_emission_point_count", "point_count"), &ParticlesMaterial::set_emission_point_count);
ClassDB::bind_method(D_METHOD("get_emission_point_count"), &ParticlesMaterial::get_emission_point_count);
ClassDB::bind_method(D_METHOD("set_trail_divisor", "divisor"), &ParticlesMaterial::set_trail_divisor);
ClassDB::bind_method(D_METHOD("get_trail_divisor"), &ParticlesMaterial::get_trail_divisor);
ClassDB::bind_method(D_METHOD("set_trail_size_modifier", "texture"), &ParticlesMaterial::set_trail_size_modifier);
ClassDB::bind_method(D_METHOD("get_trail_size_modifier"), &ParticlesMaterial::get_trail_size_modifier);
ClassDB::bind_method(D_METHOD("set_trail_color_modifier", "texture"), &ParticlesMaterial::set_trail_color_modifier);
ClassDB::bind_method(D_METHOD("get_trail_color_modifier"), &ParticlesMaterial::get_trail_color_modifier);
ClassDB::bind_method(D_METHOD("get_gravity"), &ParticlesMaterial::get_gravity);
ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &ParticlesMaterial::set_gravity);
ADD_GROUP("Trail", "trail_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "trail_divisor", PROPERTY_HINT_RANGE, "1,1000000,1"), "set_trail_divisor", "get_trail_divisor");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "trail_size_modifier", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_trail_size_modifier", "get_trail_size_modifier");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "trail_color_modifier", PROPERTY_HINT_RESOURCE_TYPE, "GradientTexture"), "set_trail_color_modifier", "get_trail_color_modifier");
ADD_GROUP("Emission Shape", "emission_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "emission_shape", PROPERTY_HINT_ENUM, "Point,Sphere,Box,Points,Directed Points"), "set_emission_shape", "get_emission_shape");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "emission_sphere_radius", PROPERTY_HINT_RANGE, "0.01,128,0.01,or_greater"), "set_emission_sphere_radius", "get_emission_sphere_radius");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "emission_box_extents"), "set_emission_box_extents", "get_emission_box_extents");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "emission_point_texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_emission_point_texture", "get_emission_point_texture");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "emission_normal_texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_emission_normal_texture", "get_emission_normal_texture");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "emission_color_texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_emission_color_texture", "get_emission_color_texture");
ADD_PROPERTY(PropertyInfo(Variant::INT, "emission_point_count", PROPERTY_HINT_RANGE, "0,1000000,1"), "set_emission_point_count", "get_emission_point_count");
ADD_GROUP("Flags", "flag_");
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_align_y"), "set_flag", "get_flag", FLAG_ALIGN_Y_TO_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_rotate_y"), "set_flag", "get_flag", FLAG_ROTATE_Y);
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_disable_z"), "set_flag", "get_flag", FLAG_DISABLE_Z);
ADD_GROUP("Spread", "");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "spread", PROPERTY_HINT_RANGE, "0,180,0.01"), "set_spread", "get_spread");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "flatness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_flatness", "get_flatness");
ADD_GROUP("Gravity", "");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "gravity"), "set_gravity", "get_gravity");
ADD_GROUP("Initial Velocity", "initial_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "initial_velocity", PROPERTY_HINT_RANGE, "0,1000,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_INITIAL_LINEAR_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "initial_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_INITIAL_LINEAR_VELOCITY);
ADD_GROUP("Angular Velocity", "angular_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "angular_velocity", PROPERTY_HINT_RANGE, "-720,720,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_ANGULAR_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "angular_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANGULAR_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angular_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_ANGULAR_VELOCITY);
ADD_GROUP("Orbit Velocity", "orbit_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "orbit_velocity", PROPERTY_HINT_RANGE, "-1000,1000,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_ORBIT_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "orbit_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ORBIT_VELOCITY);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "orbit_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_ORBIT_VELOCITY);
ADD_GROUP("Linear Accel", "linear_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "linear_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_LINEAR_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "linear_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_LINEAR_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "linear_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_LINEAR_ACCEL);
ADD_GROUP("Radial Accel", "radial_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "radial_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_RADIAL_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "radial_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_RADIAL_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "radial_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_RADIAL_ACCEL);
ADD_GROUP("Tangential Accel", "tangential_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "tangential_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_TANGENTIAL_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "tangential_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_TANGENTIAL_ACCEL);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "tangential_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_TANGENTIAL_ACCEL);
ADD_GROUP("Damping", "");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "damping", PROPERTY_HINT_RANGE, "0,100,0.01,or_greater"), "set_param", "get_param", PARAM_DAMPING);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "damping_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_DAMPING);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "damping_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_DAMPING);
ADD_GROUP("Angle", "");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "angle", PROPERTY_HINT_RANGE, "-720,720,0.1,or_lesser,or_greater"), "set_param", "get_param", PARAM_ANGLE);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "angle_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANGLE);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angle_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_ANGLE);
ADD_GROUP("Scale", "");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "scale", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param", "get_param", PARAM_SCALE);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "scale_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_SCALE);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "scale_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_SCALE);
ADD_GROUP("Color", "");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_ramp", PROPERTY_HINT_RESOURCE_TYPE, "GradientTexture"), "set_color_ramp", "get_color_ramp");
ADD_GROUP("Hue Variation", "hue_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "hue_variation", PROPERTY_HINT_RANGE, "-1,1,0.1"), "set_param", "get_param", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "hue_variation_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "hue_variation_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_HUE_VARIATION);
ADD_GROUP("Animation", "anim_");
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "anim_speed", PROPERTY_HINT_RANGE, "0,128,0.01,or_greater"), "set_param", "get_param", PARAM_ANIM_SPEED);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "anim_speed_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANIM_SPEED);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_speed_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_ANIM_SPEED);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "anim_offset", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param", "get_param", PARAM_ANIM_OFFSET);
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "anim_offset_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANIM_OFFSET);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_offset_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_ANIM_OFFSET);
BIND_ENUM_CONSTANT(PARAM_INITIAL_LINEAR_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_ANGULAR_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_ORBIT_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_LINEAR_ACCEL);
BIND_ENUM_CONSTANT(PARAM_RADIAL_ACCEL);
BIND_ENUM_CONSTANT(PARAM_TANGENTIAL_ACCEL);
BIND_ENUM_CONSTANT(PARAM_DAMPING);
BIND_ENUM_CONSTANT(PARAM_ANGLE);
BIND_ENUM_CONSTANT(PARAM_SCALE);
BIND_ENUM_CONSTANT(PARAM_HUE_VARIATION);
BIND_ENUM_CONSTANT(PARAM_ANIM_SPEED);
BIND_ENUM_CONSTANT(PARAM_ANIM_OFFSET);
BIND_ENUM_CONSTANT(PARAM_MAX);
BIND_ENUM_CONSTANT(FLAG_ALIGN_Y_TO_VELOCITY);
BIND_ENUM_CONSTANT(FLAG_ROTATE_Y);
BIND_ENUM_CONSTANT(FLAG_MAX);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINT);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_BOX);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINTS);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_DIRECTED_POINTS);
}
ParticlesMaterial::ParticlesMaterial() :
element(this) {
set_spread(45);
set_flatness(0);
set_param(PARAM_INITIAL_LINEAR_VELOCITY, 0);
set_param(PARAM_ORBIT_VELOCITY, 0);
set_param(PARAM_LINEAR_ACCEL, 0);
set_param(PARAM_RADIAL_ACCEL, 0);
set_param(PARAM_TANGENTIAL_ACCEL, 0);
set_param(PARAM_DAMPING, 0);
set_param(PARAM_ANGLE, 0);
set_param(PARAM_SCALE, 1);
set_param(PARAM_HUE_VARIATION, 0);
set_param(PARAM_ANIM_SPEED, 0);
set_param(PARAM_ANIM_OFFSET, 0);
set_emission_shape(EMISSION_SHAPE_POINT);
set_emission_sphere_radius(1);
set_emission_box_extents(Vector3(1, 1, 1));
set_trail_divisor(1);
set_gravity(Vector3(0, -9.8, 0));
emission_point_count = 1;
for (int i = 0; i < PARAM_MAX; i++) {
set_param_randomness(Parameter(i), 0);
}
for (int i = 0; i < FLAG_MAX; i++) {
flags[i] = false;
}
set_color(Color(1, 1, 1, 1));
current_key.key = 0;
current_key.invalid_key = 1;
_queue_shader_change();
}
ParticlesMaterial::~ParticlesMaterial() {
if (material_mutex)
material_mutex->lock();
if (shader_map.has(current_key)) {
shader_map[current_key].users--;
if (shader_map[current_key].users == 0) {
//deallocate shader, as it's no longer in use
VS::get_singleton()->free(shader_map[current_key].shader);
shader_map.erase(current_key);
}
VS::get_singleton()->material_set_shader(_get_material(), RID());
}
if (material_mutex)
material_mutex->unlock();
}
|