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
|
/*************************************************************************/
/* register_types.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 "register_types.h"
#include "error_macros.h"
#include "thirdparty/thekla_atlas/thekla/thekla_atlas.h"
#include <stdio.h>
#include <stdlib.h>
extern bool (*array_mesh_lightmap_unwrap_callback)(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y);
bool thekla_mesh_lightmap_unwrap_callback(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y) {
//set up input mesh
Thekla::Atlas_Input_Mesh input_mesh;
input_mesh.face_array = new Thekla::Atlas_Input_Face[p_index_count / 3];
for (int i = 0; i < p_index_count / 3; i++) {
input_mesh.face_array[i].vertex_index[0] = p_indices[i * 3 + 0];
input_mesh.face_array[i].vertex_index[1] = p_indices[i * 3 + 1];
input_mesh.face_array[i].vertex_index[2] = p_indices[i * 3 + 2];
//printf("face %i - %i, %i, %i - mat %i\n", i, input_mesh.face_array[i].vertex_index[0], input_mesh.face_array[i].vertex_index[1], input_mesh.face_array[i].vertex_index[2], p_face_materials[i]);
input_mesh.face_array[i].material_index = p_face_materials[i];
}
input_mesh.vertex_array = new Thekla::Atlas_Input_Vertex[p_vertex_count];
for (int i = 0; i < p_vertex_count; i++) {
input_mesh.vertex_array[i].first_colocal = i; //wtf
for (int j = 0; j < 3; j++) {
input_mesh.vertex_array[i].position[j] = p_vertices[i * 3 + j];
input_mesh.vertex_array[i].normal[j] = p_normals[i * 3 + j];
}
input_mesh.vertex_array[i].uv[0] = 0;
input_mesh.vertex_array[i].uv[1] = 0;
//printf("vertex %i - %f, %f, %f\n", i, input_mesh.vertex_array[i].position[0], input_mesh.vertex_array[i].position[1], input_mesh.vertex_array[i].position[2]);
//printf("normal %i - %f, %f, %f\n", i, input_mesh.vertex_array[i].normal[0], input_mesh.vertex_array[i].normal[1], input_mesh.vertex_array[i].normal[2]);
}
input_mesh.face_count = p_index_count / 3;
input_mesh.vertex_count = p_vertex_count;
//set up options
Thekla::Atlas_Options options;
Thekla::atlas_set_default_options(&options);
options.packer_options.witness.packing_quality = 1;
options.packer_options.witness.texel_area = 1.0 / p_texel_size;
options.packer_options.witness.conservative = false;
//generate
Thekla::Atlas_Error err;
Thekla::Atlas_Output_Mesh *output = atlas_generate(&input_mesh, &options, &err);
delete[] input_mesh.face_array;
delete[] input_mesh.vertex_array;
if (output == NULL) {
ERR_PRINT("could not generate atlas output mesh");
return false;
}
if (err != Thekla::Atlas_Error_Success) {
printf("error with atlas\n");
} else {
*r_vertex = (int *)malloc(sizeof(int) * output->vertex_count);
*r_uv = (float *)malloc(sizeof(float) * output->vertex_count * 3);
*r_index = (int *)malloc(sizeof(int) * output->index_count);
// printf("w: %i, h: %i\n", output->atlas_width, output->atlas_height);
for (int i = 0; i < output->vertex_count; i++) {
(*r_vertex)[i] = output->vertex_array[i].xref;
(*r_uv)[i * 2 + 0] = output->vertex_array[i].uv[0] / output->atlas_width;
(*r_uv)[i * 2 + 1] = output->vertex_array[i].uv[1] / output->atlas_height;
// printf("uv: %f,%f\n", (*r_uv)[i * 2 + 0], (*r_uv)[i * 2 + 1]);
}
*r_vertex_count = output->vertex_count;
for (int i = 0; i < output->index_count; i++) {
(*r_index)[i] = output->index_array[i];
}
*r_index_count = output->index_count;
*r_size_hint_x = output->atlas_height;
*r_size_hint_y = output->atlas_width;
}
if (output) {
atlas_free(output);
}
return err == Thekla::Atlas_Error_Success;
}
void register_thekla_unwrap_types() {
array_mesh_lightmap_unwrap_callback = thekla_mesh_lightmap_unwrap_callback;
}
void unregister_thekla_unwrap_types() {
}
|
