lib/lib/p3d/gfx.py

   1 import datetime
   2 from logging import debug, info
   3 from os import getcwd
   4 from os.path import exists, dirname
   5 from panda3d.core import get_model_path, AntialiasAttrib, PandaNode, \
   6     LightRampAttrib, Camera, OrthographicLens, NodePath, OmniBoundingVolume, \
   7     AmbientLight as P3DAmbientLight, Spotlight as P3DSpotlight, Point2, \
   8     Point3, Texture
   9 from direct.filter.CommonFilters import CommonFilters
  10 from direct.actor.Actor import Actor
  11 from lib.lib.p3d.p3d import LibP3d
  12
  13
  14 def set_srgb(model):
  15     for texture in model.find_all_textures():
  16         if texture.get_format() in [Texture.F_rgba, Texture.F_rgbm]:
  17             texture.set_format(Texture.F_srgb_alpha)
  18         elif texture.get_format() in [Texture.F_rgb]:
  19             texture.set_format(Texture.F_srgb)
  20
  21
  22 class RenderToTexture:
  23
  24     def __init__(self, size=(256, 256)):
  25         self.__set_buffer(size)
  26         self.__set_display_region()
  27         self.__set_camera()
  28         self.__set_root()
  29         self.display_region.set_camera(self.camera)
  30
  31     def __set_buffer(self, size):
  32         self.buffer = base.win.make_texture_buffer('result buffer', size[0],
  33                                                    size[1])
  34         self.buffer.set_sort(-100)
  35
  36     def __set_display_region(self):
  37         self.display_region = self.buffer.make_display_region()
  38         self.display_region.set_sort(20)
  39
  40     def __set_camera(self):
  41         self.camera = NodePath(Camera('camera 2d'))
  42         lens = OrthographicLens()
  43         lens.set_film_size(1, 1)
  44         lens.set_near_far(-1000, 1000)
  45         self.camera.node().set_lens(lens)
  46
  47     def __set_root(self):
  48         self.root = NodePath('root')
  49         self.root.set_depth_test(False)
  50         self.root.set_depth_write(False)
  51         self.camera.reparent_to(self.root)
  52
  53     @property
  54     def texture(self): return self.buffer.get_texture()
  55
  56     def destroy(self):
  57         base.graphicsEngine.remove_window(self.buffer)
  58         if base.win:  # if you close the window during a race
  59             base.win.remove_display_region(self.display_region)
  60         list(map(lambda node: node.remove_node(), [self.camera, self.root]))
  61
  62
  63 class P3dGfxMgr:
  64
  65     def __init__(self, model_path, antialiasing, shaders, srgb):
  66         self.root = P3dNode(render)
  67         self.__srgb = srgb
  68         self.callbacks = {}
  69         self.filters = None
  70         get_model_path().append_directory(model_path)
  71         if LibP3d.runtime():
  72             root_dir = LibP3d.p3dpath(dirname(__file__))
  73             paths = [root_dir + '/' + model_path, root_dir]
  74             list(map(get_model_path().append_directory, paths))
  75         render.set_shader_auto()
  76         # render.set_two_sided(True)  # it breaks shadows
  77         if antialiasing: render.set_antialias(AntialiasAttrib.MAuto)
  78         if shaders and base.win:
  79             self.filters = CommonFilters(base.win, base.cam)
  80
  81     def load_model(self, filename, callback=None, anim=None):
  82         ext = '.bam' if exists(filename + '.bam') else ''
  83         if anim:
  84             anim_dct = {'anim': filename + '-Anim' + ext}
  85             node = P3dNode(self.set_srgb(Actor(filename + ext, anim_dct)))
  86         elif callback:
  87             callb = lambda model: callback(P3dNode(self.set_srgb(model)))
  88             node = loader.loadModel(filename + ext, callback=callb)
  89         else:
  90             node = P3dNode(self.set_srgb(
  91                 loader.loadModel(LibP3d.p3dpath(filename + ext))))
  92         return node
  93
  94     def set_srgb(self, model):
  95         if self.__srgb:
  96             for texture in model.find_all_textures():
  97                 if texture.get_format() in [Texture.F_rgba, Texture.F_rgbm]:
  98                     texture.set_format(Texture.F_srgb_alpha)
  99                 elif texture.get_format() in [Texture.F_rgb]:
 100                     texture.set_format(Texture.F_srgb)
 101         return model
 102
 103     @staticmethod
 104     def toggle_aa():
 105         aa_not_none = render.get_antialias() != AntialiasAttrib.MNone
 106         if render.has_antialias() and aa_not_none:
 107             render.clear_antialias()
 108         else: render.set_antialias(AntialiasAttrib.MAuto, 1)
 109
 110     def set_toon(self):
 111         tmp_node = NodePath(PandaNode('temp node'))
 112         tmp_node.set_attrib(LightRampAttrib.make_single_threshold(.5, .4))
 113         tmp_node.set_shader_auto()
 114         base.cam.node().set_initial_state(tmp_node.get_state())
 115         self.filters.set_cartoon_ink(separation=1)
 116
 117     def set_bloom(self):
 118         if not base.win: return
 119         self.filters.setBloom(
 120             blend=(.3, .4, .3, 0), mintrigger=.6, maxtrigger=1.0, desat=.6,
 121             intensity=1.0, size='medium')
 122         # default: (.3, .4, .3, 0), .6, 1, .6, 1, 'medium'
 123
 124     @staticmethod
 125     def pos2d(node):
 126         p3d = base.cam.get_relative_point(node.node, Point3(0, 0, 0))
 127         p2d = Point2()
 128         return p2d if base.camLens.project(p3d, p2d) else None
 129
 130     @staticmethod
 131     def screen_coord(pos):
 132         new_node = NodePath('temp')
 133         new_node.set_pos(pos)
 134         coord3d = new_node.get_pos(base.cam)
 135         new_node.remove_node()
 136         coord2d = Point2()
 137         base.camLens.project(coord3d, coord2d)
 138         coord_r2d = Point3(coord2d[0], 0, coord2d[1])
 139         coord_a2d = base.aspect2d.get_relative_point(render2d, coord_r2d)
 140         return coord_a2d[0], coord_a2d[2]
 141
 142     @staticmethod
 143     def world_from_to(pos):
 144         p_from, p_to = Point3(), Point3()    # in camera coordinates
 145         base.camLens.extrude(pos, p_from, p_to)
 146         p_from = render.get_relative_point(base.cam, p_from)  # global coords
 147         p_to = render.get_relative_point(base.cam, p_to)  # global coords
 148         return p_from, p_to
 149
 150     @property
 151     def shader_support(self):
 152         return base.win.get_gsg().get_supports_basic_shaders()
 153
 154     def screenshot(self, path=None):
 155         time = datetime.datetime.now().strftime('%y%m%d%H%M%S')
 156         #res = base.win.save_screenshot(Filename(path or ("yocto%s.png" % time)))
 157         #debug('screenshot %s (%s)' % (path or ("yocto%s.png" % time), res))
 158         res = base.screenshot(path or ("pmachines%s.png" % time), False)
 159         info('screenshot %s (%s; %s)' % (path or ("pmachines%s.png" % time), res, getcwd()))
 160
 161     @staticmethod
 162     def enable_shader(): render.set_shader_auto()
 163
 164     @staticmethod
 165     def disable_shader(): render.set_shader_off()
 166
 167     @staticmethod
 168     def print_stats(two_d=True, three_d=True, analyze=True, ls=True):
 169         '''Print graphics stats. They use standard output (from p3d).'''
 170         info = []
 171         if two_d and analyze:
 172             info +=[('render2d.analyze', base.render2d.analyze)]
 173         if three_d and analyze:
 174             info +=[('render.analyze', base.render.analyze)]
 175         if two_d and ls:
 176             info +=[('render2d.ls', base.render2d.ls)]
 177         if three_d and ls:
 178             info +=[('render.ls', base.render.ls)]
 179         for elm in info:
 180             print('\n\n#####\n%s()' % elm[0])
 181             elm[1]()
 182
 183
 184 class P3dNode:
 185
 186     def __init__(self, nodepath):
 187         self.nodepath = nodepath
 188         self.node.set_python_tag('libnode', self)
 189
 190     def set_collide_mask(self, mask): return self.node.set_collide_mask(mask)
 191     def set_x(self, val): return self.node.set_x(val)
 192     def set_y(self, val): return self.node.set_y(val)
 193     def set_z(self, val): return self.node.set_z(val)
 194     def set_hpr(self, val): return self.node.set_hpr(val)
 195     def set_h(self, val): return self.node.set_h(val)
 196     def set_p(self, val): return self.node.set_p(val)
 197     def set_r(self, val): return self.node.set_r(val)
 198     def set_scale(self, val): return self.node.set_scale(val)
 199     def set_transparency(self, val): return self.node.set_transparency(val)
 200     def set_alpha_scale(self, val): return self.node.set_alpha_scale(val)
 201     def set_texture(self, texturestage, texture):
 202         return self.node.set_texture(texturestage, texture)
 203     def has_tag(self, name): return self.node.has_tag(name)
 204     def get_tag(self, name): return self.node.get_tag(name)
 205     def get_python_tag(self, name): return self.node.get_python_tag(name)
 206     def remove_node(self): return self.node.remove_node()
 207     def flatten_strong(self): return self.node.flatten_strong()
 208     def clear_model_nodes(self): return self.node.clear_model_nodes()
 209     def show(self): return self.node.show()
 210     def set_depth_offset(self, val): return self.node.set_depth_offset(val)
 211     def loop(self, val): return self.node.loop(val)
 212     def cleanup(self): return self.node.cleanup()
 213     def write_bam_file(self, fname): return self.node.write_bam_file(fname)
 214
 215     def attach_node(self, name):
 216         return P3dNode(self.node.attach_new_node(name))
 217
 218     def add_shape(self, shape):
 219         return self.node.node().add_shape(shape._mesh_shape)
 220         #TODO: don't access a protected member
 221
 222     @property
 223     def name(self): return self.node.get_name()
 224
 225     @property
 226     def node(self): return self.nodepath
 227
 228     @property
 229     def p3dnode(self): return self.node.node()
 230
 231     def set_pos(self, pos): return self.node.set_pos(pos._vec)
 232         #TODO: don't access a protected member
 233
 234     def get_pos(self, other=None):
 235         return self.node.get_pos(* [] if other is None else [other.node])
 236
 237     @property
 238     def x(self): return self.node.get_x()
 239
 240     @property
 241     def y(self): return self.node.get_y()
 242
 243     @property
 244     def z(self): return self.node.get_z()
 245
 246     @property
 247     def hpr(self): return self.node.get_hpr()
 248
 249     @property
 250     def h(self): return self.node.get_h()
 251
 252     @property
 253     def p(self): return self.node.get_p()
 254
 255     @property
 256     def r(self): return self.node.get_r()
 257
 258     @property
 259     def scale(self): return self.node.get_scale()
 260
 261     @property
 262     def is_empty(self): return self.node.is_empty()
 263
 264     def get_relative_vector(self, node, vec):
 265         return self.node.get_relative_vector(node.node, vec)
 266
 267     def set_material(self, mat): return self.node.set_material(mat, 1)
 268
 269     def set_python_tag(self, name, val):
 270         return self.node.set_python_tag(name, val)
 271
 272     def get_distance(self, other_node):
 273         return self.node.get_distance(other_node.node)
 274
 275     def reparent_to(self, parent): return self.node.reparent_to(parent.node)
 276
 277     def wrt_reparent_to(self, parent):
 278         return self.node.wrt_reparent_to(parent.node)
 279
 280     @staticmethod
 281     def __get_pandanode(nodepath):
 282         if nodepath.has_python_tag('libnode'):
 283             return nodepath.get_python_tag('libnode')
 284         return P3dNode(nodepath)
 285
 286     def find_all_matches(self, name):
 287         nodes = self.node.find_all_matches(name)
 288         return [self.__get_pandanode(node) for node in nodes]
 289
 290     def find(self, name):
 291         model = self.node.find(name)
 292         if model: return self.__get_pandanode(model)
 293
 294     def optimize(self):
 295         self.node.prepare_scene(base.win.get_gsg())  # crash with texture.set_format
 296         self.node.premunge_scene(base.win.get_gsg())
 297
 298     def hide(self, mask=None):
 299         return self.node.hide(*[] if mask is None else [mask])
 300
 301     @property
 302     def tight_bounds(self): return self.node.get_tight_bounds()
 303
 304     @property
 305     def parent(self): return self.node.get_parent()
 306
 307     @property
 308     def children(self): return self.node.get_children()
 309
 310     def destroy(self): return self.node.remove_node()
 311
 312
 313 class P3dAnimNode:
 314
 315     def __init__(self, filepath, anim_dct):
 316         self.node = Actor(filepath, anim_dct)
 317
 318     def loop(self, val): return self.node.loop(val)
 319
 320     def reparent_to(self, node): self.node.reparent_to(node)
 321
 322     @property
 323     def name(self): return self.node.get_name()
 324
 325     def optimize(self):
 326         self.node.prepare_scene(base.win.get_gsg())
 327         self.node.premunge_scene(base.win.get_gsg())
 328
 329     def set_omni(self):
 330         self.node.node().set_bounds(OmniBoundingVolume())
 331         self.node.node().set_final(True)
 332
 333     def destroy(self): self.node.cleanup()
 334
 335
 336 class P3dAmbientLight:
 337
 338     def __init__(self, color):
 339         ambient_lgt = P3DAmbientLight('ambient light')
 340         ambient_lgt.set_color(color)
 341         self.ambient_np = render.attach_new_node(ambient_lgt)
 342         render.set_light(self.ambient_np)
 343
 344     def destroy(self):
 345         render.clear_light(self.ambient_np)
 346         self.ambient_np.remove_node()
 347
 348
 349 class P3dSpotlight:
 350
 351     def __init__(self, mask=None):
 352         self.spot_lgt = render.attach_new_node(P3DSpotlight('spot'))
 353         snode = self.spot_lgt.node()
 354         snode.set_scene(render)
 355         snode.set_shadow_caster(True, 1024, 1024)
 356         snode.get_lens().set_fov(40)
 357         snode.get_lens().set_near_far(20, 200)
 358         if mask: snode.set_camera_mask(mask)
 359         render.set_light(self.spot_lgt)
 360
 361     def set_pos(self, pos): return self.spot_lgt.set_pos(*pos)
 362
 363     def look_at(self, pos): return self.spot_lgt.look_at(*pos)
 364
 365     def set_color(self, color): return self.spot_lgt.set_color(*color)
 366
 367     def destroy(self):
 368         render.clear_light(self.spot_lgt)
 369         self.spot_lgt.remove_node()