Blender 2.83.2 official release
The Blender 2.83.2 release is enabled for downloading on the official Blender site.
15 bugs fixed in this version.
2.83
Mantaflow – fixing common problems
The “Mantaflow” liquid and smoke simulator tutorial. Describes the fixing of the most common problems of using this simulator.
By Blender Made Easy
How to rotate objects through the Blender Python API
For objects rotation, we can use the “rotation_euler” property. This property is a list of three items, each of them corresponds to the rotation angle around the X, Y, and Z-axis. The otation_euler[0] contains the rotation angle around the X-axis, rotation_euler[1] – around the Y-axis, and rotation_euler[2] – around the Z-axis. To rotate an object we must set a rotation angle to the appropriate field of the property.
For example, to rotate an active object around the X-axis to the 90 degrees angle we must execute the following command:
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import math bpy.context.active_object.rotation_euler[0] = math.radians(90) |
math.radians is used to convert degrees to radians.
How to switch between flat and smooth shading through the Blender Python API
The flat/smooth shading mode is regulated through the “use_smooth” property of each polygon of the mesh.
To enable smooth shading we need to set the “use_smooth” property of each mesh polygon to “True”.
For active object:
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bpy.context.object.data.polygons.foreach_set('use_smooth', [True] * len(bpy.context.object.data.polygons)) |
To enable flat shading – set the “use_smooth” property of each polygon to “False”.
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bpy.context.object.data.polygons.foreach_set('use_smooth', [False] * len(bpy.context.object.data.polygons)) |
To make new shading mode visible – force update mesh data:
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bpy.context.object.data.update() |
Blender add-on “EEVEE Materials Override” v. 1.2.0.
Blender add-on “EEVEE Materials Override” updated to v. 1.2.0.
- Added an ability to exclude materials from override
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Buy on GumroadCollection Manager
An introduction to the “Collection Manager” add-on, greatly improving the collections abilities in Blender. This addon is included in the base add-ons in Blender 2.83.
By Paul Kotelevets (1D_Inc)
Blender 2.83.1 official release
The Blender 2.83.1 release is enabled for downloading on the official Blender site.
33 bugs fixed in this version.
Shed light on color spaces
Tutorial about color spaces used in Blender.
Summary:
- 0:00 – About the vision
- 1:18 – What is sRGB?
- 2:02 – Difference between Linear and sRGB
- 2:30 – Why does Blender use Linear instead of sRGB?
- 3:03 – Normal and Non-color data
Switching between coordinate systems
To switch from a global coordinate system to a local coordinate system of an object, we need to multiply the global coordinates by the inverted matrix of an object:
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import copy object_matrix_inverted = copy.copy(bpy.context.object.matrix_world) object_matrix_inverted.invert() cursor_location_local = object_matrix_inverted @ bpy.context.scene.cursor.location |
To switch from the local coordinate system of the object to the global coordinate system, we need to multiply the local coordinates by the matrix of an object:
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import copy object_matrix = copy.copy(bpy.context.object.matrix_world) vertex_0 = bpy.context.object.data.vertices[0].co vertex_0_global = object_matrix @ vertex_0 |