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课程

Add Flickering Effect | Flickering Neon Sign | Simple & Easy Method | Blender Eevee (All Versions)

  1. 打开教程 6 的渲染界面，选中 Camera 对象：

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  1. 设置关键帧：

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  1. 100 帧后设置关键帧，可以通过移动缩放旋转来改变物体位置，改变的会变成黄色。右键会出现插入关键帧，点击，该物体位置信息就会插入到该关键帧中。

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  1. 设置输出文件夹：

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  1. 渲染图像：

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  1. 此时就输出了 100 帧图像：

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  1. Blender 还具有视频编辑功能！

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[3.x] Create Better & Clean 3D Text Using Geometry Nodes In Blender | Easy Step-by-Step Tutorial

  1. 给新工程自带的 Cude 对象不断调整其 Geometry，直到这样：

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import bpy
import os

# 获取当前选中的网格对象
bpy.ops.mesh.primitive_cube_add()
text_obj = bpy.context.object

# 创建 Geometry Nodes 网络
text_modifier = text_obj.modifiers.new(type='NODES', name="Geometry Nodes")
bpy.ops.node.new_geometry_node_group_assign()
node_tree = text_modifier.node_group

# 删除 Group Input 节点
node_tree.nodes.remove(node_tree.nodes.get("Group Input"))

# 创建 String to Curves 节点
string_to_curves_node = node_tree.nodes.new(type='GeometryNodeStringToCurves')
string_to_curves_node.location = (-400, 50)

string_to_curves_node.align_x = "CENTER"
string_to_curves_node.align_y = "MIDDLE"
string_to_curves_node.inputs[0].default_value = "Hello,\nWorld!"
string_to_curves_node.inputs[1].default_value = 2.2

string_to_curves_node.font = bpy.data.fonts.load(os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                      , './fonts/Neon_Future.ttf')))

# 创建 Resample Curve 节点
resample_curve_node = node_tree.nodes.new(type='GeometryNodeResampleCurve')
resample_curve_node.location = (-150, 50)

resample_curve_node.mode = "EVALUATED"

# 创建 Fill Curve 节点
fill_curve_node = node_tree.nodes.new(type='GeometryNodeFillCurve')
fill_curve_node.location = (50, 50)

# 创建 Extrude Mesh 节点
extrude_mesh_node = node_tree.nodes.new(type='GeometryNodeExtrudeMesh')
extrude_mesh_node.location = (250, 150)

extrude_mesh_node.inputs[3].default_value = 0.4
extrude_mesh_node.inputs[4].default_value = False

# 创建 Flip Faces 节点
flip_faces_node = node_tree.nodes.new(type='GeometryNodeFlipFaces')
flip_faces_node.location = (250, -100)

# 创建 Join Geometry 节点
join_geometry_node = node_tree.nodes.new(type='GeometryNodeJoinGeometry')
join_geometry_node.location = (450, 50)

# 创建 Realize Instances 节点
realize_instances_node = node_tree.nodes.new(type='GeometryNodeRealizeInstances')
realize_instances_node.location = (650, 50)

# 创建 Merge by Distance 节点
merge_by_distance_node = node_tree.nodes.new(type='GeometryNodeMergeByDistance')
merge_by_distance_node.location = (850, 50)

# 获取 output node 节点
output_node = node_tree.nodes.get("Group Output")
output_node.location = (1050, 50)

# 连接节点
node_tree.links.new(string_to_curves_node.outputs[0], resample_curve_node.inputs[0])
node_tree.links.new(resample_curve_node.outputs[0], fill_curve_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], extrude_mesh_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], flip_faces_node.inputs[0])
node_tree.links.new(extrude_mesh_node.outputs[0], join_geometry_node.inputs[0])
node_tree.links.new(flip_faces_node.outputs[0], join_geometry_node.inputs[0])
node_tree.links.new(join_geometry_node.outputs[0], realize_instances_node.inputs[0])
node_tree.links.new(realize_instances_node.outputs[0], merge_by_distance_node.inputs[0])
node_tree.links.new(merge_by_distance_node.outputs[0], output_node.inputs[0])
  1. 再添加 Bevel：

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text_modifier_bevel = text_obj.modifiers.new(name="Bevel", type="BEVEL")
text_modifier_bevel.width = 0.05
text_modifier_bevel.segments = 5
text_modifier_bevel.use_clamp_overlap = False
text_modifier_bevel.harden_normals = True
  1. 再添加 Simple Deform：

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text_modifier_simple_deform = text_obj.modifiers.new(name="SimpleDeform", type="SIMPLE_DEFORM")
text_modifier_simple_deform.deform_method = "BEND"
text_modifier_simple_deform.angle = - np.pi / 4
text_modifier_simple_deform.deform_axis = "Z"

完整代码：

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import bpy
import os
import numpy as np

# 获取当前选中的网格对象
bpy.ops.mesh.primitive_cube_add()
text_obj = bpy.context.object

# 创建 Geometry Nodes 网络
text_modifier_geometrynodes = text_obj.modifiers.new(type='NODES', name="Geometry Nodes")
bpy.ops.node.new_geometry_node_group_assign()
node_tree = text_modifier_geometrynodes.node_group

# delete Group Input
node_tree.nodes.remove(node_tree.nodes.get("Group Input"))

# 创建 String to Curves 节点
string_to_curves_node = node_tree.nodes.new(type='GeometryNodeStringToCurves')
string_to_curves_node.location = (-400, 50)

string_to_curves_node.align_x = "CENTER"
string_to_curves_node.align_y = "MIDDLE"
string_to_curves_node.inputs[0].default_value = "Hello,\nWorld!"
string_to_curves_node.inputs[1].default_value = 2.2

string_to_curves_node.font = bpy.data.fonts.load(os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                      , './fonts/Neon_Future.ttf')))

# 创建 Resample Curve 节点
resample_curve_node = node_tree.nodes.new(type='GeometryNodeResampleCurve')
resample_curve_node.location = (-150, 50)

resample_curve_node.mode = "EVALUATED"

# 创建 Fill Curve 节点
fill_curve_node = node_tree.nodes.new(type='GeometryNodeFillCurve')
fill_curve_node.location = (50, 50)

# 创建 Extrude Mesh 节点
extrude_mesh_node = node_tree.nodes.new(type='GeometryNodeExtrudeMesh')
extrude_mesh_node.location = (250, 150)

extrude_mesh_node.inputs[3].default_value = 0.4
extrude_mesh_node.inputs[4].default_value = False

# 创建 Flip Faces 节点
flip_faces_node = node_tree.nodes.new(type='GeometryNodeFlipFaces')
flip_faces_node.location = (250, -100)

# 创建 Join Geometry 节点
join_geometry_node = node_tree.nodes.new(type='GeometryNodeJoinGeometry')
join_geometry_node.location = (450, 50)

# 创建 Realize Instances 节点
realize_instances_node = node_tree.nodes.new(type='GeometryNodeRealizeInstances')
realize_instances_node.location = (650, 50)

# 创建 Merge by Distance 节点
merge_by_distance_node = node_tree.nodes.new(type='GeometryNodeMergeByDistance')
merge_by_distance_node.location = (850, 50)

# get output node
output_node = node_tree.nodes.get("Group Output")
output_node.location = (1050, 50)

# 连接节点
node_tree.links.new(string_to_curves_node.outputs[0], resample_curve_node.inputs[0])
node_tree.links.new(resample_curve_node.outputs[0], fill_curve_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], extrude_mesh_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], flip_faces_node.inputs[0])
node_tree.links.new(extrude_mesh_node.outputs[0], join_geometry_node.inputs[0])
node_tree.links.new(flip_faces_node.outputs[0], join_geometry_node.inputs[0])
node_tree.links.new(join_geometry_node.outputs[0], realize_instances_node.inputs[0])
node_tree.links.new(realize_instances_node.outputs[0], merge_by_distance_node.inputs[0])
node_tree.links.new(merge_by_distance_node.outputs[0], output_node.inputs[0])

text_modifier_bevel = text_obj.modifiers.new(name="Bevel", type="BEVEL")
text_modifier_bevel.width = 0.05
text_modifier_bevel.segments = 5
text_modifier_bevel.use_clamp_overlap = False
text_modifier_bevel.harden_normals = True

text_modifier_simple_deform = text_obj.modifiers.new(name="SimpleDeform", type="SIMPLE_DEFORM")
text_modifier_simple_deform.deform_method = "BEND"
text_modifier_simple_deform.angle = - np.pi / 4
text_modifier_simple_deform.deform_axis = "Z"

[3.x] Create Multi-line Text Using Geometry Nodes In Blender | Easy Step-by-Step Tutorial

调整之前的 Geometry Node，使其可以多行显示文字：

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import bpy
import os
import numpy as np

# 获取当前选中的网格对象
bpy.ops.mesh.primitive_cube_add()
text_obj = bpy.context.object

# 创建 Geometry Nodes 网络
text_modifier_geometrynodes = text_obj.modifiers.new(type='NODES', name="Geometry Nodes")
bpy.ops.node.new_geometry_node_group_assign()
node_tree = text_modifier_geometrynodes.node_group

# delete Group Input
node_tree.nodes.remove(node_tree.nodes.get("Group Input"))

# 创建 Special Characters 节点
special_characters_node = node_tree.nodes.new(type='FunctionNodeInputSpecialCharacters')
special_characters_node.location = (-800, 200)

# 创建 String to Curves 节点
string_to_curves_nodes = []
for i in range(2):
    string_to_curves_nodes.append(node_tree.nodes.new(type='GeometryNodeStringToCurves'))
    string_to_curves_nodes[-1].location = (-400, 350 - 400 * i)
    string_to_curves_nodes[-1].align_x = "CENTER"
    string_to_curves_nodes[-1].align_y = "MIDDLE"
    string_to_curves_nodes[-1].inputs[1].default_value = 2.2
string_to_curves_nodes[0].font = bpy.data.fonts.load(os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                  , './fonts/Neon_Future.ttf')))
string_to_curves_nodes[1].font = bpy.data.fonts.load(os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                  , './fonts/Ourland.otf')))

# 创建 Resample Curve 节点
resample_curve_node = node_tree.nodes.new(type='GeometryNodeResampleCurve')
resample_curve_node.location = (250, 50)

resample_curve_node.mode = "EVALUATED"

# 创建 Fill Curve 节点
fill_curve_node = node_tree.nodes.new(type='GeometryNodeFillCurve')
fill_curve_node.location = (450, 50)

# 创建 Extrude Mesh 节点
extrude_mesh_node = node_tree.nodes.new(type='GeometryNodeExtrudeMesh')
extrude_mesh_node.location = (650, 150)

extrude_mesh_node.inputs[3].default_value = 0.4
extrude_mesh_node.inputs[4].default_value = False

# 创建 Flip Faces 节点
flip_faces_node = node_tree.nodes.new(type='GeometryNodeFlipFaces')
flip_faces_node.location = (650, -100)

# 创建 Join Geometry 节点
join_geometry_nodes = []
for i in range(2):
    join_geometry_nodes.append(node_tree.nodes.new(type='GeometryNodeJoinGeometry'))
join_geometry_nodes[0].location = (50, 50)
join_geometry_nodes[1].location = (850, 50)

# 创建 Realize Instances 节点
realize_instances_node = node_tree.nodes.new(type='GeometryNodeRealizeInstances')
realize_instances_node.location = (1050, 50)

# 创建 Merge by Distance 节点
merge_by_distance_node = node_tree.nodes.new(type='GeometryNodeMergeByDistance')
merge_by_distance_node.location = (1250, 50)

# get output node
output_node = node_tree.nodes.get("Group Output")
output_node.location = (1450, 50)

# 创建 String 节点
string_nodes = []
for i in range(3):
    string_nodes.append(node_tree.nodes.new(type='FunctionNodeInputString'))
    string_nodes[-1].location = (-800, -150 * i + 50)
string_nodes[0].string = 'Taco'
string_nodes[1].string = 'Tuesday!'
string_nodes[2].string = 'gigigigigi~'

# 创建 Join Strings 节点
join_strings_node = node_tree.nodes.new(type='GeometryNodeStringJoin')
join_strings_node.location = (-600, 75)

# 创建 Set Position 节点
set_position_nodes = []
for i in range(2):
    set_position_nodes.append(node_tree.nodes.new(type='GeometryNodeSetPosition'))
    set_position_nodes[-1].location = (-150, -250 * i + 200)
set_position_nodes[0].inputs[3].default_value[1] = 2
set_position_nodes[1].inputs[3].default_value[1] = -1

# 连接节点
node_tree.links.new(special_characters_node.outputs[0], join_strings_node.inputs[0])
node_tree.links.new(string_nodes[1].outputs[0], join_strings_node.inputs[1])
node_tree.links.new(string_nodes[0].outputs[0], join_strings_node.inputs[1])
node_tree.links.new(string_nodes[2].outputs[0], string_to_curves_nodes[1].inputs[0])
node_tree.links.new(join_strings_node.outputs[0], string_to_curves_nodes[0].inputs[0])
node_tree.links.new(string_to_curves_nodes[0].outputs[0], set_position_nodes[0].inputs[0])
node_tree.links.new(string_to_curves_nodes[1].outputs[0], set_position_nodes[1].inputs[0])
node_tree.links.new(set_position_nodes[0].outputs[0], join_geometry_nodes[0].inputs[0])
node_tree.links.new(set_position_nodes[1].outputs[0], join_geometry_nodes[0].inputs[0])
node_tree.links.new(join_geometry_nodes[0].outputs[0], resample_curve_node.inputs[0])
node_tree.links.new(resample_curve_node.outputs[0], fill_curve_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], extrude_mesh_node.inputs[0])
node_tree.links.new(fill_curve_node.outputs[0], flip_faces_node.inputs[0])
node_tree.links.new(extrude_mesh_node.outputs[0], join_geometry_nodes[1].inputs[0])
node_tree.links.new(flip_faces_node.outputs[0], join_geometry_nodes[1].inputs[0])
node_tree.links.new(join_geometry_nodes[1].outputs[0], realize_instances_node.inputs[0])
node_tree.links.new(realize_instances_node.outputs[0], merge_by_distance_node.inputs[0])
node_tree.links.new(merge_by_distance_node.outputs[0], output_node.inputs[0])

# 创建 Bevel modifier

text_modifier_bevel = text_obj.modifiers.new(name="Bevel", type="BEVEL")
text_modifier_bevel.width = 0.05
text_modifier_bevel.segments = 5
text_modifier_bevel.use_clamp_overlap = False
text_modifier_bevel.harden_normals = True

# 创建 SimpleDeform modifier，使文本弯曲

text_modifier_simple_deform = text_obj.modifiers.new(name="SimpleDeform", type="SIMPLE_DEFORM")
text_modifier_simple_deform.deform_method = "BEND"
text_modifier_simple_deform.angle = - np.pi / 4
text_modifier_simple_deform.deform_axis = "Z"

Create Wavy or Curvy Text In Blender | Easy Tutorial On Wave Modifier | Dancing Text | Waving Text

  1. 新建一个 Text 对象，调整其文字， Bevel，Alignment：

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import bpy

bpy.ops.object.text_add()
text_obj = bpy.context.object

text_obj.data.body = "Hello, World!"
text_obj.data.extrude = 0.1
text_obj.data.bevel_depth = 0.02
text_obj.data.align_x = "CENTER"
text_obj.data.align_y = "CENTER"
  1. 给它一个 Wave 修改器，调整其参数，就会获得一个波浪动画效果：

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text_modifier = text_obj.modifiers.new(name="Wave", type="WAVE")
text_modifier.height = 0.75
text_modifier.width = 5
text_modifier.narrowness = 1
text_modifier.start_position_x = 6
text_modifier.speed = 0.2

完整代码：

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import bpy
import numpy as np

bpy.ops.object.text_add()
text_obj = bpy.context.object

text_obj.data.body = "Hello, World!"
text_obj.data.extrude = 0.1
text_obj.data.bevel_depth = 0.02
text_obj.data.align_x = "CENTER"
text_obj.data.align_y = "CENTER"

text_modifier = text_obj.modifiers.new(name="Wave", type="WAVE")
text_modifier.height = 0.75
text_modifier.width = 5
text_modifier.narrowness = 1
text_modifier.start_position_x = 6
text_modifier.speed = 0.2
  1. 如果要将它立起来，先转成 Mesh：

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text_obj.rotation_euler[0] = np.pi / 2
  1. 删除多余的边：Mesh → Merge → By distance：

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bpy.ops.object.editmode_toggle()
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.remove_doubles(threshold=0.01)
  1. 调整其 Rotation，Object → Apply → All Transforms：

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bpy.ops.object.editmode_toggle()
text_obj.rotation_euler[0] = np.pi / 2
bpy.ops.object.transform_apply()
  1. 添加 Wave：

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bpy.ops.object.editmode_toggle()
text_obj.rotation_euler[0] = np.pi / 2
bpy.ops.object.transform_apply()

完整代码：

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import bpy
import numpy as np

bpy.ops.object.text_add()
text_obj = bpy.context.object

text_obj.data.body = "Hello, World!"
text_obj.data.extrude = 0.1
text_obj.data.bevel_depth = 0.02
text_obj.data.align_x = "CENTER"
text_obj.data.align_y = "CENTER"

bpy.ops.object.convert(target="MESH")

bpy.ops.object.editmode_toggle()
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.remove_doubles(threshold=0.01)

bpy.ops.object.editmode_toggle()
text_obj.rotation_euler[0] = np.pi / 2
bpy.ops.object.transform_apply()

text_modifier = text_obj.modifiers.new(name="Wave", type="WAVE")
text_modifier.height = 0.75
text_modifier.width = 5
text_modifier.narrowness = 1
text_modifier.start_position_x = 6
text_modifier.speed = 0.2

Easy Method to Engrave Your Text or Logo | How To Carve Any Text | 3D Text Effects In Blender

  1. 新建一个 Text 对象，设置其内容，Alignment，Location：

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import bpy
import os

bpy.ops.object.text_add()
text_obj = bpy.context.object

text_obj.data.align_x = "CENTER"
text_obj.data.align_y = "CENTER"

text_obj.data.body = "Hello,\nWorld!"

text_obj.location[2] = 0.15

text_obj.data.extrude = 0.3
  1. 转换为 MESH：

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bpy.ops.object.convert(target="MESH")
  1. 按住 X 右键，删除 Limit Dissolve：

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bpy.ops.object.editmode_toggle()
bpy.ops.mesh.dissolve_limited()

4.Mesh → Merge → By Distance：

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bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.remove_doubles(threshold=0.01)
bpy.ops.object.editmode_toggle()
  1. 按住 E 网上拖，获得 Extrude：

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bpy.ops.mesh.extrude_region_move(TRANSFORM_OT_translate={"value":(0, 0, 0.3)})
bpy.ops.object.editmode_toggle()
  1. 新建一个 Cube，设置其 Scale：

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bpy.ops.mesh.primitive_cube_add()
cube_obj = bpy.context.object

cube_obj.scale[0:3] = [2.5, 1.2, 0.25]
  1. 设置 Boolean：

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cube_modifier_boolean = cube_obj.modifiers.new(name="Boolean", type="BOOLEAN")
cube_modifier_boolean.object = text_obj
bpy.ops.object.modifier_apply(modifier="Boolean")

bpy.ops.object.transform_apply()
  1. 设置材质，应用 Boolean：

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cube_material = bpy.data.materials.new(name="Material")
cube_material.use_nodes = True
nodes = cube_material.node_tree.nodes
principled_bsdf = nodes.get("Principled BSDF")
if principled_bsdf is not None:
    principled_bsdf.inputs[0].default_value = (0, 0, 0, 1)

cube_obj.data.materials.append(cube_material)
  1. 应用 Scale：

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bpy.ops.object.transform_apply()
  1. 设置 Bevel 及其相关参数：

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cube_modifier_bevel = cube_obj.modifiers.new(name="Bevel", type="BEVEL")
cube_modifier_bevel.width = 0.01
cube_modifier_bevel.segments = 1
cube_modifier_bevel.use_clamp_overlap = False
cube_modifier_bevel.harden_normals = True

text_obj.hide_viewport = True
text_obj.hide_render = True
  1. 导出 .glb 格式，可被 3D Viewer 读取。

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bpy.ops.export_scene.gltf(filepath=os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                      , './outputs/1')))

完整代码：

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import bpy
import os

bpy.ops.object.text_add()
text_obj = bpy.context.object

text_obj.data.align_x = "CENTER"
text_obj.data.align_y = "CENTER"

text_obj.data.body = "Hello,\nWorld!"

text_obj.location[2] = 0.15

# text_obj.data.extrude = 0.3

bpy.ops.object.convert(target="MESH")

bpy.ops.object.editmode_toggle()
bpy.ops.mesh.dissolve_limited()

bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.remove_doubles(threshold=0.01)
bpy.ops.mesh.extrude_region_move(TRANSFORM_OT_translate={"value":(0, 0, 0.3)})
bpy.ops.object.editmode_toggle()

bpy.ops.mesh.primitive_cube_add()
cube_obj = bpy.context.object

cube_obj.scale[0:3] = [2.5, 1.2, 0.25]

cube_material = bpy.data.materials.new(name="Material")
cube_material.use_nodes = True
nodes = cube_material.node_tree.nodes
principled_bsdf = nodes.get("Principled BSDF")
if principled_bsdf is not None:
    principled_bsdf.inputs[0].default_value = (0, 0, 0, 1)

cube_obj.data.materials.append(cube_material)

cube_modifier_boolean = cube_obj.modifiers.new(name="Boolean", type="BOOLEAN")
cube_modifier_boolean.object = text_obj
bpy.ops.object.modifier_apply(modifier="Boolean")

bpy.ops.object.transform_apply()

cube_modifier_bevel = cube_obj.modifiers.new(name="Bevel", type="BEVEL")
cube_modifier_bevel.width = 0.01
cube_modifier_bevel.segments = 1
cube_modifier_bevel.use_clamp_overlap = False
cube_modifier_bevel.harden_normals = True

text_obj.hide_viewport = True
text_obj.hide_render = True

bpy.ops.export_scene.gltf(filepath=os.path.abspath(os.path.join(os.path.abspath(os.path.dirname(bpy.data.filepath))
                                                                      , './outputs/1')))

Easy Method to Emboss Your Text or Logo | How To Create Raised Letters | 3D Text Effects In Blender

emmmm 差不多就是把上一个的 Boolean 中的 DIfference 改为 UNION。如果有破，要自己修复：

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