catalinux / blendergraph (public) (License: GPLv3) (since 2020-07-18) (hash sha1)
Create nice graphics with Python and Blender (Cycles engine)
Clone URLs: https://rocketgit.com/user/catalinux/blendergraph ssh://rocketgit@ssh.rocketgit.com/user/catalinux/blendergraph git://git.rocketgit.com/user/catalinux/blendergraph
master
List of commits:
Subject Hash Author Date (UTC)
First commit cf1215d4ee717d11ae7ab45d81a84828567f7527 Catalin(ux) M. BOIE 2020-07-18 05:49:43
Commit cf1215d4ee717d11ae7ab45d81a84828567f7527 - First commit
Author: Catalin(ux) M. BOIE
Author date (UTC): 2020-07-18 05:49
Committer name: Catalin(ux) M. BOIE
Committer date (UTC): 2020-07-18 05:49
Parent(s):
Signing key:
Tree: 498c0d5e6ad490113d175b0c691b9678c0a61ecb
File Lines added Lines deleted
.gitignore 2 0
Makefile 7 0
graph1.py 176 0
File .gitignore added (mode: 100644) (index 0000000..992a010)
1 *.blend
2 *.png
File Makefile added (mode: 100644) (index 0000000..9d63bb4)
1 all: graph1
2
3 BLENDER := blender --background -F PNG --threads 0 --factory-startup
4
5 graph1: graph1.py
6 $(BLENDER) --python graph1.py
7
File graph1.py added (mode: 100644) (index 0000000..0e6be51)
1 #!BPY
2
3 """
4 Blendergraph project
5 """
6
7 __author__ = "Catalin(ux) M. BOIE"
8 __url__ = ("https://rocketgit.com/user/catalinux/blendergraph")
9 __version__ = "v0.1"
10
11 import bpy
12 import math
13
14 def mat_emission(ob, name, color, strength):
15 bpy.ops.material.new()
16 mat = bpy.data.materials[-1]
17 mat.name = 'Emission-' + name
18 mat.use_nodes = True
19 mat.node_tree.nodes.clear()
20 p = mat.node_tree.nodes.new(type='ShaderNodeEmission')
21 p.inputs['Color'].default_value = color
22 p.inputs['Strength'].default_value = strength
23 p.location = (-200, 0)
24 xout = p.outputs['Emission']
25 p = mat.node_tree.nodes.new(type='ShaderNodeOutputMaterial')
26 xin = p.inputs['Surface']
27 mat.node_tree.links.new(xin, xout)
28 ob.data.materials.append(mat)
29
30
31 def mat_glossy(ob, name, color, roughness):
32 bpy.ops.material.new()
33 mat = bpy.data.materials[-1]
34 mat.name = 'Glossy-' + name
35 mat.use_nodes = True
36 mat.node_tree.nodes.clear()
37 p = mat.node_tree.nodes.new(type='ShaderNodeBsdfGlossy')
38 p.inputs['Color'].default_value = color
39 p.inputs['Roughness'].default_value = roughness
40 p.location = (-200, 0)
41 xout = p.outputs['BSDF']
42 p = mat.node_tree.nodes.new(type='ShaderNodeOutputMaterial')
43 xin = p.inputs['Surface']
44 mat.node_tree.links.new(xin, xout)
45 ob.data.materials.append(mat)
46
47
48 def mat_glass(ob, name, color, roughness, ior):
49 bpy.ops.material.new()
50 mat = bpy.data.materials[-1]
51 mat.name = 'Glass-' + name
52 mat.use_nodes = True
53 mat.node_tree.nodes.clear()
54 p = mat.node_tree.nodes.new(type='ShaderNodeBsdfGlass')
55 p.inputs['Color'].default_value = color
56 p.inputs['Roughness'].default_value = roughness
57 p.inputs['IOR'].default_value = ior
58 p.location = (-200, 0)
59 xout = p.outputs['BSDF']
60 p = mat.node_tree.nodes.new(type='ShaderNodeOutputMaterial')
61 xin = p.inputs['Surface']
62 mat.node_tree.links.new(xin, xout)
63 ob.data.materials.append(mat)
64
65
66 def draw_bar(name, value, pos, percent):
67 # text
68 bpy.ops.object.text_add(enter_editmode=False, location=(pos, 0, 0))
69 txt_ob = bpy.context.object
70 txt_ob.name = 'MyText-' + name
71 txt_ob.data.align_x = 'LEFT'
72 txt_ob.data.extrude = 0.02
73 txt_ob.data.space_character = 1.1
74 txt_ob.data.space_line = 1.2
75 txt_ob.data.bevel_depth = 0.01
76 txt_ob.data.body = name
77 txt_ob.rotation_euler = 23 * 2 * math.pi / 360, 0, math.pi / 2
78 mat_glossy(txt_ob, 'TextMat-' + name, (0, 0, 1, 1), 1)
79 # bar
80 bpy.ops.mesh.primitive_cube_add(enter_editmode=False)
81 bar_ob = bpy.context.object
82 bar_ob.name = 'bar-' + name
83 h = percent / 50
84 bar_ob.scale = .5, .5, h
85 bar_ob.location = (pos - .4, -1, h)
86 mat_glossy(bar_ob, 'BarMat-' + name, (0, 1, 0, 1), .9)
87
88
89 def main():
90 scene = bpy.context.scene
91
92 # Clean
93 # Deselect all
94 bpy.ops.object.select_all(action='DESELECT')
95 for obj in scene.objects:
96 obj.select_set(True)
97 bpy.ops.object.delete()
98
99 # Add camera
100 bpy.ops.object.camera_add(enter_editmode = False, location=(20, 20, 10), rotation=(73 * 2 * math.pi / 360, 0, (90 + 45) * 2 * math.pi / 360))
101 cam_ob = bpy.context.object
102 cam_ob.name = 'MyCam'
103 cam_ob.data.type = 'ORTHO'
104 cam_ob.data.ortho_scale = 20
105 scene.camera = cam_ob
106
107
108 # Add lights
109 bpy.ops.mesh.primitive_plane_add(location=(0, 0, 20))
110 lamp_ob = bpy.context.object
111 lamp_ob.name = 'Lamp1'
112 lamp_ob.scale = (15, 15, 15)
113 mat_emission(lamp_ob, 'LampMat', (1, 1, 1, 1), 3)
114
115
116 # World
117 w = bpy.context.scene.world
118 w.use_nodes = True
119 w.color = (1, 1, 1)
120 ###if w:
121 ###w.horizon_color = (0.0, 0.1, 0.3)
122 ###w.zenith_color = (0, .2, .6)
123 ###w.use_sky_blend = True
124
125
126 # Floor
127 bpy.ops.mesh.primitive_plane_add(location=(0, 0, -0.2))
128 plane_ob = bpy.context.object
129 plane_ob.name = 'Floor'
130 plane_ob.scale = [10, 10, 10]
131 mat_glossy(plane_ob, 'FloorMat', (1, 0, 0, 1), 0.8)
132
133
134 # Compute heights
135 values = { 'Fedora': 1, 'Ubuntu': 10, 'Arch': 20, 'DSL': 5 }
136 no_of_values = len(values)
137 max = 0
138 for k, v in values.items():
139 if v > max:
140 max = v
141
142 # compute percents
143 percents = {}
144 for k, v in values.items():
145 percents[k] = v * 100 / max
146 print("percents: " + str(percents))
147
148 # Draw bars
149 pos = - len(values) * 3 / 2 + 1
150 for k, v in values.items():
151 draw_bar(k + " (" + str(v) + ")", v, pos, percents[k])
152 pos += 3
153
154 print("Saving...")
155 bpy.ops.wm.save_as_mainfile(filepath = 'graph1.blend')
156
157 print("Rendering...")
158
159 scene.frame_start = 1
160 scene.frame_end = 1
161
162 render = scene.render
163 render.use_file_extension = True
164 render.engine = 'CYCLES'
165 render.filepath = 'graph1-#####'
166 render.resolution_x = 1000
167 render.resolution_y = 500
168 render.resolution_percentage = 100
169 render.image_settings.file_format = 'PNG'
170 render.image_settings.color_mode = 'RGBA'
171
172 bpy.ops.render.render(write_still = True, animation = True)
173
174
175 if __name__ == '__main__':
176 main()
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