scene_functions.py 14.1 KB
Newer Older
1 2 3
# Import Blender functions
filename = os.path.join(os.path.basename(bpy.data.filepath), "blender_functions.py")
exec(compile(open(filename).read(), filename, 'exec'))
4

5
def init(unique_id,camera_type,transp_par,detectors):
6 7 8
    bcs = bpy.context.scene

    # Configure Environment
9
    bcs.world.light_settings.use_environment_light = False # True ??
10 11 12
    bcs.world.light_settings.environment_energy = 0.1

    # Configure Stamp
13 14 15 16 17 18 19 20 21 22 23
    bcsr = bpy.context.scene.render
    bcsr.use_stamp = True
    bcsr.use_stamp_time = False
    bcsr.use_stamp_date = False
    bcsr.use_stamp_render_time = False
    bcsr.use_stamp_frame = False
    bcsr.use_stamp_scene = False
    bcsr.use_stamp_camera = False
    bcsr.use_stamp_filename = False
    bcsr.stamp_note_text = unique_id
    bcsr.use_stamp_note = True
24 25 26 27

    # Cleanup
    bpy.data.objects.remove(bpy.data.objects['Cube'])
    bpy.data.objects.remove(bpy.data.objects['Camera'])
28
    #bpy.data.objects.remove(bpy.data.objects['Lamp'])
29 30 31 32

    # Basic Objects
    addCameras() # Add cameras

33
    if camera_type == "ForwardCamera":
34
        addALICE_Geometry(True,transp_par,detectors) # ALICE TPC, EMCal, ITS, TRD
35
    else:
36
        addALICE_Geometry(False,transp_par,detectors)
37

38
def addALICE_Geometry(bright_colors=True, transp_par=1.0, detectors=[1,1,1,1]):
39

40 41 42 43
    if bright_colors: # Defining sequence of RGB values to fill 'createMaterial' functions below
        rgb_v = [13,13,25,10] # Colors for "ForwardCamera"
    else:
        rgb_v = [0.5,0.9,1,0.2] # Colors for "OverviewCamera" and "BarrelCamera"
44

Breno Rilho Lemos's avatar
Breno Rilho Lemos committed
45

46 47
    # ADD ITS
    if detectors[0]:
Breno Rilho Lemos's avatar
Breno Rilho Lemos committed
48

49
        # ADD ITS INNER BARREL
Breno Rilho Lemos's avatar
Breno Rilho Lemos committed
50

51
        # Material
52
        createMaterial("innerITS",R=rgb_v[2],G=0,B=rgb_v[2],shadows=False,cast_shadows=False,transparency=True,alpha=transp_par*0.7,emit=0,specular_alpha=0,fresnel_factor=5,fresnel=0.3)
Breno Rilho Lemos's avatar
Breno Rilho Lemos committed
53

54 55 56 57
        # Add Inner ITS
        bpy.ops.mesh.primitive_cylinder_add(radius=0.0421, depth=0.271, view_align=False, enter_editmode=False, location=(0, 0, 0))
        inner_TPC = bpy.context.object
        inner_TPC.name = "innerITS"
Breno Rilho Lemos's avatar
Breno Rilho Lemos committed
58

59 60 61
        # Set Material
        inner_TPC.data.materials.clear()
        inner_TPC.data.materials.append(bpy.data.materials["innerITS"])
62 63


64
        # ADD ITS OUTER BARREL
65

66
        # Material
67
        createMaterial("outerITS",R=rgb_v[3],G=0,B=rgb_v[3],shadows=False,cast_shadows=False,transparency=True,alpha=transp_par*0.4,emit=0.8,specular_alpha=0,fresnel_factor=5,fresnel=0.3)
68

69
        # ADD ITS MIDDLE LAYERS
70

71 72 73 74
        # Add "hole" to subtract from the middle
        bpy.ops.mesh.primitive_cylinder_add(radius=0.1944, depth=0.9, view_align=False, enter_editmode=False, location=(0, 0, 0)) #smaller cylinder
        middle_ITS_hole = bpy.context.object
        middle_ITS_hole.name = "Hole"
75

76 77 78 79
        # Add actual middle layer ITS part
        bpy.ops.mesh.primitive_cylinder_add(radius=0.247, depth=0.843, view_align=False, enter_editmode=False, location=(0, 0, 0)) #bigger cylinder
        middle_ITS = bpy.context.object
        middle_ITS.name = "middleITS"
80

81 82
        # Subtract hole from main TPC part
        subtract(middle_ITS_hole,middle_ITS)
83

84 85 86
        # Set material
        middle_ITS.data.materials.clear()
        middle_ITS.data.materials.append(bpy.data.materials["outerITS"])
87 88


89
        # ADD ITS OUTER LAYERS
90

91 92 93 94
        # Add "hole" to subtract from the middle
        bpy.ops.mesh.primitive_cylinder_add(radius=0.3423, depth=1.5, view_align=False, enter_editmode=False, location=(0, 0, 0)) #smaller cylinder
        outer_ITS_hole = bpy.context.object
        outer_ITS_hole.name = "Hole"
95

96 97 98 99
        # Add actual outer layer ITS part
        bpy.ops.mesh.primitive_cylinder_add(radius=0.3949, depth=1.475, view_align=False, enter_editmode=False, location=(0, 0, 0)) #bigger cylinder
        outer_ITS = bpy.context.object
        outer_ITS.name = "outerITS"
100

101 102
        # Subtract hole from main TPC part
        subtract(outer_ITS_hole,outer_ITS)
103

104 105 106
        # Set material
        outer_ITS.data.materials.clear()
        outer_ITS.data.materials.append(bpy.data.materials["outerITS"])
107

108 109 110 111
        # Make ITS middle and outer layers a single object
        joinObjects([middle_ITS,outer_ITS])
        Outer_ITS = bpy.context.object
        Outer_ITS.name = "OuterITS"
112

113 114
    # ADD TPC
    if detectors[1]:
115

116
        # Material
117
        createMaterial("tpc",R=0,G=rgb_v[0],B=0,shadows=False,cast_shadows=False,transparency=True,alpha=transp_par*0.2,emit=0.3,specular_alpha=0,fresnel_factor=5,fresnel=0.3)
118

119 120 121 122
        # Add TPC
        bpy.ops.mesh.primitive_cylinder_add(radius=2.461, depth=5.1, view_align=False, enter_editmode=False, location=(0, 0, 0)) #bigger cylinder
        TPC = bpy.context.object
        TPC.name = "TPC"
123

124 125 126
        # Set material
        TPC.data.materials.clear()
        TPC.data.materials.append(bpy.data.materials["tpc"])
127

128
    # ADD ALICE TRD
129
    if detectors[2]:
130

131
        # Material
132
        createMaterial("TRD",R=rgb_v[3],G=0,B=rgb_v[3],shadows=False,cast_shadows=False,transparency=True,alpha=transp_par*0.15,emit=0.8,specular_alpha=0,fresnel_factor=5,fresnel=0.3)
133

134 135 136 137
        # Add "hole" to subtract from the middle
        bpy.ops.mesh.primitive_cylinder_add(radius=2.9, depth=6, vertices=18, view_align=False, enter_editmode=False, location=(0, 0, 0)) #smaller cylinder
        TRD_hole = bpy.context.object
        TRD_hole.name = "Hole"
138

139 140 141 142
        # Add actual TRD part
        bpy.ops.mesh.primitive_cylinder_add(radius=3.7, depth=5.1, vertices=18, view_align=False, enter_editmode=False, location=(0, 0, 0)) #bigger cylinder
        TRD = bpy.context.object
        TRD.name = "TRD"
143

144 145
        # Subtract hole from main TRD part
        subtract(TRD_hole,TRD)
146

147 148 149
        # Set material
        TRD.data.materials.clear()
        TRD.data.materials.append(bpy.data.materials["TRD"])
150

151 152 153 154 155 156 157
        # Add 'slices' to subtract from TRD structure
        bpy.ops.mesh.primitive_cube_add(radius=1, location=(2.855942,0.50358,0))
        slice = bpy.context.object
        slice.name = "slice"
        bpy.ops.transform.resize(value=(1,0.03,4))
        bpy.context.object.rotation_euler[2] = 0.174533
        subtract(slice,TRD)
158

159 160
        def rad(theta): # Convert degrees to radians
            return theta * math.pi / 180
161

162 163
        xn = 2.9 * math.cos(rad(10))
        yn = 2.9 * math.sin(rad(10))
164

165
        for n in range(1,18):
166

167 168
            dx = -2 * 2.9 * math.sin(rad(10)) * math.sin(rad(n * 20))
            xn += dx
169

170 171
            dy = 2 * 2.9 * math.sin(rad(10)) * math.cos(rad(n * 20))
            yn += dy
172

173
            rotat = rad(10 + n*20)
174

175 176 177 178 179
            bpy.ops.mesh.primitive_cube_add(radius=1, location=(xn,yn,0))
            slice = bpy.context.object
            slice.name = "slice"
            bpy.ops.transform.resize(value=(1,0.03,4))
            bpy.context.object.rotation_euler[2] = rotat
180

181 182 183 184 185 186
            subtract(slice,TRD)

    # ADD EMCal
    if detectors[3]:

        # Material
187
        createMaterial("emcal",R=rgb_v[1],G=rgb_v[1],B=0,shadows=False,cast_shadows=False,transparency=True,alpha=transp_par*0.05,emit=1.5,specular_alpha=0,fresnel_factor=5,fresnel=0.3)
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

        # Add cylinder for EMCal
        bpy.ops.mesh.primitive_cylinder_add(radius=4.7, depth=5.1, vertices=19, view_align=False, enter_editmode=False, location=(0, 0, 0))
        EMCal = bpy.context.object
        EMCal.name = "EMCal"

        # Add cylinder to be removed from center
        bpy.ops.mesh.primitive_cylinder_add(radius=4.35, depth=5.2, vertices=19, view_align=False, enter_editmode=False, location=(0, 0, 0))
        emcal_hole = bpy.context.object
        emcal_hole.name = "Hole"

        subtract(emcal_hole,EMCal);

        # Adds rotated cube to be removed from EMCal so that there's a 7.3° angle with top y axis, clockwise
        bpy.ops.mesh.primitive_cube_add(location=(2.85,2.2,0), rotation=(0,0,-0.1274), radius=2.55)
        bpy.ops.transform.resize(value=(1.5,1.5,1.5), constraint_axis=(False,False,True))
        cube1 = bpy.context.object # first quadrant
        subtract(cube1,EMCal)

        # Adds rotated cube to be removed from EMCal so that there's a 9.7° angle with left x axis, anticlockwise
        bpy.ops.mesh.primitive_cube_add(location=(-2.08,-2.95,0), rotation=(0,0,0.1693), radius=2.55)
        bpy.ops.transform.resize(value=(1.5,1.5,1.5), constraint_axis=(False,False,True))
        cube3 = bpy.context.object # third quadrant
        subtract(cube3,EMCal)

        #Adds cube with right angle in fourth quadrant to be removed from EMCal
        bpy.ops.mesh.primitive_cube_add(location=(2.55,-2.55,0), radius=2.55)
        bpy.ops.transform.resize(value=(1.5,1.5,1.5), constraint_axis=(False,False,True))
        cube4 = bpy.context.object # fourth quadrant
        subtract(cube4,EMCal)

        # Set Material
        EMCal.data.materials.clear()
        EMCal.data.materials.append(bpy.data.materials["emcal"])
222

223

224 225
def addCameras():
    # ForwardCamera
226
    bpy.ops.object.camera_add(location = (0,0.5,20), rotation = (0, 0, 0))
227 228 229
    bpy.context.object.name = "ForwardCamera"
    camera_forward=bpy.data.objects['ForwardCamera']
    camera_forward.data.type = 'ORTHO'
230
    camera_forward.data.ortho_scale = 18
231 232

    # OverviewCamera
233
    bpy.ops.object.camera_add(location = (23.27182, 10.3968, 22.754), rotation = (-0.071558, 0.879645, 0.305433))
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
    bpy.context.object.name = "OverviewCamera"
    bpy.context.object.data.lens = 66.78

    # Barrel Camera
    bpy.ops.object.camera_add(location = (6, 0, 0), rotation = (0, 1.5708, 0))
    bpy.context.object.name = "BarrelCamera"

# Function that creates Blender Objects from input list of particles.
## Returns a list of blender objects
def createSceneParticles(particles, createTracks = False):
    # Associate particles and colors
    particle_types = ["Electron","Pion","Muon","Proton","Kaon","Unknown"]
    clRed = (1, 0, 0)
    clGreen = (0, 1, 0)
    clBlue = (0, 0, 1)
    clMagenta = (0.75, 0, 1)
    clYellow = (1, 1, 0)
    clWhite = (255, 255, 255)
    particle_colors = {"Electron":clRed, "Pion":clGreen, "Muon":clBlue, "Proton":clMagenta, "Kaon": clYellow, "Unknown": clWhite}

    #Create Materials
    for type in particle_types:
        bpy.data.materials.new(name=type)
        #bpy.context.object.active_material = (1, 0, 0)
        bpy.data.materials[type].diffuse_color = particle_colors[type]
        bpy.data.materials[type].use_shadows = False
        bpy.data.materials[type].use_cast_shadows = False

    # Create blender spheres (particles)
    blender_particles=[]
    n_particles=len(particles)
    for particle in particles:
        this_type=particle.p_type
        print("Adding Sphere - Particle " + str(len(blender_particles))+" of "+str(n_particles-1)+" - "+this_type)
        bpy.ops.mesh.primitive_uv_sphere_add()
269
        bpy.ops.object.shade_smooth()
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
        this_particle = bpy.context.object
        this_particle.name = "part"+str(particle.iDx)
        this_particle.location = ((particle.x,particle.y,particle.z))
        this_particle.delta_scale = (r_part,r_part,r_part)
        this_particle.data.materials.clear()
        this_particle.data.materials.append(bpy.data.materials[this_type])
        blender_particles.append(this_particle)

    # Create blender curves (tracks)
    blender_tracks=[]
    if createTracks:
            for track in particles:
                this_type=track.p_type #TO DO: make this not random, but according to file data
                print("Adding Curve - Track " + str(len(blender_tracks))+" of "+str(n_particles-1)+" - "+this_type)

                # create the Curve Datablock
                curveTrack = bpy.data.curves.new('CurveTrack', type='CURVE')
                curveTrack.dimensions = '3D'
                curveTrack.resolution_u = 2

                curveTrack.fill_mode = 'FULL'
                curveTrack.bevel_depth = 0.02
                curveTrack.bevel_resolution = 3


                # map coords to spline
                bcs = bpy.context.scene
                polyline = curveTrack.splines.new('NURBS')
                polyline.points.add(bcs.frame_end) # Add one point per frame
                for i in range(bcs.frame_end):
                    polyline.points[i].co = (particle.x,particle.y,particle.z, 1)

                # create Object
                trackOB = bpy.data.objects.new('Track', curveTrack)
                trackOB.data.materials.clear()
                trackOB.data.materials.append(bpy.data.materials[this_type])
                scn = bpy.context.scene
                scn.objects.link(trackOB)
                blender_tracks.append(trackOB)


    return blender_particles, blender_tracks

# Function that animates the scene using the particle propagator class
def animate(objects, particles, driver):
    bcs = bpy.context.scene

    #Animate particles
    for f in range(1, bcs.frame_end):
        t = driver.delta_t*f
        bcs.frame_current = f
        print("Configuring particles in frame: "+str(f)+" of "+str(bcs.frame_end))
        for i in range(0, len(objects)):
            bcs.objects.active=objects[i]
            objects[i].location=(particles[i].Propagate(t))
            objects[i].keyframe_insert(data_path='location')

# Function that animates particle tracks using the particle propagator class
def animate_tracks(tracks, particles, driver):
    bcs = bpy.context.scene

    #Animate tracks
    for f in range(1, bcs.frame_end):
        t = driver.delta_t*f
        bcs.frame_current = f
        print("Configuring tracks in frame: "+ str(f) +" of "+ str(bcs.frame_end))
        for point in range(f,bcs.frame_end):
            for i in range(0, len(particles)):
                #bcs.objects.active=tracks[i]
                tracks[i].data.splines[0].points[point].keyframe_insert(data_path="co", frame = f)
                x, y, z = particles[i].Propagate(t)
                tracks[i].data.splines[0].points[point].co = (x, y, z, 1)



                ##polyline = curveTrack.splines.new('NURBS')
                ##polyline.points.add(len(coords))
                ##for i, coord in enumerate(coords):
                ##    x,y,z = coord
                ##    polyline.points[i].co = (x, y, z, 1)

                #curve = bpy.data.objects["Track"]
                #curve.data.splines[0].points[1].co


                #point.keyframe_insert(data_path="co", frame = i)
                # https://blender.stackexchange.com/questions/73630/animate-curves-by-changing-spline-data-using-a-python-script