goat3d: 8b156bc5205b src/goat3d

goat3d

view src/goat3d_writexml.cc @ 90:8b156bc5205b

[maxgoat] fixed the transform export bug [goatview] added widgets for the animation controls [goatview] added a grid ground plane with automatic sizing and transitions from size to size

author	John Tsiombikas <nuclear@member.fsf.org>
date	Sat, 17 May 2014 06:26:24 +0300
parents	99715321ad6d
children

line source

1 /*

2 goat3d - 3D scene, character, and animation file format library.

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU Lesser General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU Lesser General Public License for more details.

15 You should have received a copy of the GNU Lesser General Public License

16 along with this program. If not, see <http://www.gnu.org/licenses/>.

17 */

18 #include <list>

19 #include <stdarg.h>

20 #include "goat3d_impl.h"

21 #include "anim/anim.h"

22 #include "log.h"

24 using namespace g3dimpl;

26 static bool write_material(const Scene *scn, goat3d_io *io, const Material *mat, int level);

27 static bool write_mesh(const Scene *scn, goat3d_io *io, const Mesh *mesh, int idx, int level);

28 static bool write_light(const Scene *scn, goat3d_io *io, const Light *light, int level);

29 static bool write_camera(const Scene *scn, goat3d_io *io, const Camera *cam, int level);

30 static bool write_node(const Scene *scn, goat3d_io *io, const Node *node, int level);

31 static bool write_node_anim(goat3d_io *io, const XFormNode *node, int level);

32 static void xmlout(goat3d_io *io, int level, const char *fmt, ...);

34 bool Scene::savexml(goat3d_io *io) const

35 {

36 xmlout(io, 0, "\n");

37 xmlout(io, 0, "\n");

38 xmlout(io, 0, "<scene>\n");

40 // write environment stuff

41 xmlout(io, 1, "<env>\n");

42 xmlout(io, 2, "<ambient float3=\"%g %g %g\"/>\n", ambient.x, ambient.y, ambient.z);

43 xmlout(io, 1, "</env>\n\n");

45 for(size_t i=0; i<materials.size(); i++) {

46 write_material(this, io, materials[i], 1);

47 }

48 for(size_t i=0; i<meshes.size(); i++) {

49 write_mesh(this, io, meshes[i], (int)i, 1);

50 }

51 for(size_t i=0; i<lights.size(); i++) {

52 write_light(this, io, lights[i], 1);

53 }

54 for(size_t i=0; i<cameras.size(); i++) {

55 write_camera(this, io, cameras[i], 1);

56 }

57 for(size_t i=0; i<nodes.size(); i++) {

58 write_node(this, io, nodes[i], 1);

59 }

61 xmlout(io, 0, "</scene>\n");

62 return true;

63 }

65 bool Scene::save_anim_xml(goat3d_io *io) const

66 {

67 xmlout(io, 0, "\n");

68 xmlout(io, 0, "\n");

69 xmlout(io, 0, "<anim>\n");

71 if(!nodes.empty()) {

72 const char *anim_name = nodes[0]->get_animation_name();

73 if(anim_name && *anim_name) {

74 xmlout(io, 1, "<name string=\"%s\"/>\n", anim_name);

75 }

76 }

78 for(size_t i=0; i<nodes.size(); i++) {

79 write_node_anim(io, nodes[i], 1);

80 }

82 xmlout(io, 0, "</anim>\n");

83 return true;

84 }

86 static bool write_material(const Scene *scn, goat3d_io *io, const Material *mat, int level)

87 {

88 xmlout(io, level, "<mtl>\n");

89 xmlout(io, level + 1, "<name string=\"%s\"/>\n", mat->name.c_str());

91 for(int i=0; i<mat->get_attrib_count(); i++) {

92 xmlout(io, level + 1, "<attr>\n");

93 xmlout(io, level + 2, "<name string=\"%s\"/>\n", mat->get_attrib_name(i));

95 const MaterialAttrib &attr = (*mat)[i];

96 xmlout(io, level + 2, "<val float4=\"%g %g %g %g\"/>\n", attr.value.x,

97 attr.value.y, attr.value.z, attr.value.w);

98 if(!attr.map.empty()) {

99 xmlout(io, level + 2, "<map string=\"%s\"/>\n", attr.map.c_str());

100 }

101 xmlout(io, level + 1, "</attr>\n");

102 }

103 xmlout(io, level, "</mtl>\n\n");

104 return true;

105 }

106

107 static bool write_mesh(const Scene *scn, goat3d_io *io, const Mesh *mesh, int idx, int level)

108 {

109 // first write the external (openctm) mesh file

110 const char *prefix = scn->get_name();

111 if(!prefix) {

112 prefix = "goat";

113 }

114

115 char *mesh_filename = (char*)alloca(strlen(prefix) + 32);

116 sprintf(mesh_filename, "%s-mesh%04d.ctm", prefix, idx);

117

118 if(!mesh->save(mesh_filename)) {

119 return false;

120 }

121

122 // then refer to that filename in the XML tags

123 xmlout(io, level, "<mesh>\n");

124 xmlout(io, level + 1, "<name string=\"%s\"/>\n", mesh->name.c_str());

125 if(mesh->material) {

126 xmlout(io, level + 1, "<material string=\"%s\"/>\n", mesh->material->name.c_str());

127 }

128 xmlout(io, level + 1, "<file string=\"%s\"/>\n", clean_filename(mesh_filename).c_str());

129 xmlout(io, level, "</mesh>\n\n");

130 return true;

131 }

132

133 static bool write_light(const Scene *scn, goat3d_io *io, const Light *light, int level)

134 {

135 return true;

136 }

137

138 static bool write_camera(const Scene *scn, goat3d_io *io, const Camera *cam, int level)

139 {

140 return true;

141 }

142

143 static bool write_node(const Scene *scn, goat3d_io *io, const Node *node, int level)

144 {

145 xmlout(io, level, "<node>\n");

146 xmlout(io, level + 1, "<name string=\"%s\"/>\n", node->get_name());

147

148 const XFormNode *parent = node->get_parent();

149 if(parent) {

150 xmlout(io, level + 1, "<parent string=\"%s\"/>\n", parent->get_name());

151 }

152

153 const char *type = 0;

154 const Object *obj = node->get_object();

155 if(dynamic_cast<const Mesh*>(obj)) {

156 type = "mesh";

157 } else if(dynamic_cast<const Light*>(obj)) {

158 type = "light";

159 } else if(dynamic_cast<const Camera*>(obj)) {

160 type = "camera";

161 }

162

163 if(type) {

164 xmlout(io, level + 1, "<%s string=\"%s\"/>\n", type, obj->name.c_str());

165 }

166

167 Vector3 pos = node->get_node_position();

168 Quaternion rot = node->get_node_rotation();

169 Vector3 scale = node->get_node_scaling();

170 Vector3 pivot = node->get_pivot();

171

172 Matrix4x4 xform;

173 node->get_node_xform(0, &xform);

174

175 xmlout(io, level + 1, "<pos float3=\"%g %g %g\"/>\n", pos.x, pos.y, pos.z);

176 xmlout(io, level + 1, "<rot float4=\"%g %g %g %g\"/>\n", rot.v.x, rot.v.y, rot.v.z, rot.s);

177 xmlout(io, level + 1, "<scale float3=\"%g %g %g\"/>\n", scale.x, scale.y, scale.z);

178 xmlout(io, level + 1, "<pivot float3=\"%g %g %g\"/>\n", pivot.x, pivot.y, pivot.z);

179

180 xmlout(io, level + 1, "<matrix0 float4=\"%g %g %g %g\"/>\n", xform[0][0], xform[0][1], xform[0][2], xform[0][3]);

181 xmlout(io, level + 1, "<matrix1 float4=\"%g %g %g %g\"/>\n", xform[1][0], xform[1][1], xform[1][2], xform[1][3]);

182 xmlout(io, level + 1, "<matrix2 float4=\"%g %g %g %g\"/>\n", xform[2][0], xform[2][1], xform[2][2], xform[2][3]);

183

184 xmlout(io, level, "</node>\n");

185 return true;

186 }

187

188 static bool write_node_anim(goat3d_io *io, const XFormNode *node, int level)

189 {

190 /* NOTE: the order of names must correspond to the order of the

191 * XFormNode::POSITION_TRACK/ROTATION_TRACK/SCALING_TRACK enum

192 */

193 static const char *attr_names[] = { "position", "rotation", "scaling" };

194

195 // for each of: position/rotation/scaling

196 for(int i=0; i<3; i++) {

197 int num_keys = node->get_key_count(i);

198 if(!num_keys) continue;

199

200 xmlout(io, level + 1, "<track>\n");

201 xmlout(io, level + 2, "<node string=\"%s\"/>\n", node->get_name());

202 xmlout(io, level + 2, "<attr string=\"%s\"/>\n\n", attr_names[i]);

203

204 // for each key in that track

205 for(int j=0; j<num_keys; j++) {

206 long tm = node->get_key_time(i, j);

207

208 float value[4];

209 int num_elems = node->get_key_value(i, j, value);

210

211 if(num_elems == 3) {

212 xmlout(io, level + 2, "<key><time int=\"%ld\"/><value float3=\"%g %g %g\"/></key>\n",

213 tm, value[0], value[1], value[2]);

214 } else {

215 xmlout(io, level + 2, "<key><time int=\"%ld\"/><value float4=\"%g %g %g %g\"/></key>\n",

216 tm, value[0], value[1], value[2], value[3]);

217 }

218 }

219

220 xmlout(io, level + 1, "</track>\n");

221 }

222 return true;

223 }

224

225 static void xmlout(goat3d_io *io, int level, const char *fmt, ...)

226 {

227 for(int i=0; i<level; i++) {

228 io_fprintf(io, " ");

229 }

230

231 va_list ap;

232 va_start(ap, fmt);

233 io_vfprintf(io, fmt, ap);

234 va_end(ap);

235 }