Blender (software): Difference between revisions
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==Modelling== | ==Modelling== | ||
===Geometry Nodes=== | |||
Geometry nodes allow you to procedurally modify the geometry of the object. | |||
Some things it can do include instancing of objects, moving vertices, and arithmetic. | |||
See some references: | |||
* [https://www.youtube.com/watch?v=Lb9tJhn9EHE Making grass by SouthernShotty] | |||
* [https://www.youtube.com/watch?v=TjGL4RjR13Q Making a raspberry by Bad Normals] | |||
* [https://www.youtube.com/watch?v=52UYqe3zdxQ Making a gumdrop by Blender Guru] | |||
==Animations== | ==Animations== | ||
Revision as of 14:10, 17 June 2021
Blender is an open-source 3D modelling software.
It can be used for creating 3D models for games, creating 2D/3D animations, and even creating video games.
Getting Started
Installation
- Windows
Direct Download
From chocolatey:
choco install blender
- Ubuntu
Blender is available on the Snap store
sudo snap install blender --classic
Modelling
Geometry Nodes
Geometry nodes allow you to procedurally modify the geometry of the object.
Some things it can do include instancing of objects, moving vertices, and arithmetic.
See some references:
Animations
Rendering and Compositing
Press <key>F12</key> to render.
Denoising
- In the view layer properties, check
Denoising Data
- Switch to the compositor layout.
- Add a denoise node, under filter.
- Attach the denoising normal, denoising albedo, and denoising depth.
Scripting
Getting Started
Blender supports scripting as an alternative means of interaction.
Most things are available in the bpy
module.
See one of the following resources to get started:
Meshes
vertices = [(-1, -1, 0), (1, -1, 0),
(-1, 1, 0), (1, 1, 0)]
edges = [(0,1), (1,2), (2,3), (3,0)]
faces = [(0,1,2), (1,2,3)]
uvs = [(0, 0), (1, 0),
(0, 1), (1, 1)]
# Create a new mesh
new_mesh = bpy.data.meshes.new(mesh_name)
new_mesh.from_pydata(vertices, edges, faces)
new_mesh.update()
# Add UVs
uv_layer = new_mesh.uv_layers.new()
for face in new_mesh.polygons:
for vert_idx, loop_idx in zip(face.vertices, face.loop_indices):
uv_layer.data[loop_idx].uv = uvs[vert_idx]
Materials
# Create a new material
my_material = bpy.data.materials.new("My New Material")
my_material.use_nodes = True
# Add material to an object
my_object.data.materials.append(my_material)
Saving scripts outside
See using external ide and run external scripts.
By default, everything is stored in the .blend
file including your custom scripts.
If you want to store your scripts outside or use another IDE, you will need to have the script inside Blender call the script outside:
import bpy
filepath = bpy.path.abspath("//myscript.py")
exec(compile(open(filepath).read(), filename, 'exec'))
Compiling Blender
See https://wiki.blender.org/wiki/Building_Blender/Linux/Ubuntu,
Note that Blender has a github mirror which may be faster to clone.
Resources
- Blender 2.8 Beginner Tutorial by Blender Guru
- This is an updated version of the famous donut tutorial
- See https://www.reddit.com/r/BlenderDoughnuts/
- Complete Blender Creator: Learn 3D Modelling for Beginners (Udemy, $20)