Blender 3D: tutorials, articles, tips, notes
In Blender 2.8x the undo/redo operation system (ctrl+z / ctrl+shift+z) has been completely rebuilt. One of the results of this API change is when the undo operation is performed, all objects in the scene are fully recreated – the current object is destroyed, and a completely new object is created instead. Pointers to the old objects (before the undo operation) now point to invalid objects that can no longer be used.
Continue reading “Objects pointers brokes if undo/redo operation is used”
Add-ons are not reloaded by pressing the F8 key in the Preferences – Add-ons window in Blender 2.83. The add-ons reload function call with this key shot was no longer tied starting with Blender 2.80.
To bind the add-ons reloading to the F8 key shot again:
Blender add-on “EEVEE Materials Override” updated to v. 1.1.0.
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Gumroad |
Blender add-on template generator updated to version 1.3.0.
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Gumroad |
Blender 3D add-on for redirecting the print output and the error messages to the Python Console window.
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Gumroad |
When you make a button in a custom UI to call the operator with passing the necessary parameters to it, pay attention that only the parameters specified explicitly will be sent to the operator. Other operator parameters will remain with default values.
For example, we need to execute the “transform_apply” operator – applying object transformations with applying just the scale.
If we call the operator as follows:
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class TESTPANEL_PT_panel(Panel): bl_idname = 'TESTPANEL_PT_panel' bl_label = 'Testpanel' bl_space_type = 'VIEW_3D' bl_region_type = 'UI' bl_category = 'Testpanel' def draw(self, context): self.layout.operator('context.object.transform_apply', text='Apply Scale').scale = True |
But all transformation (scale, rotation, and position) will still be applied to the object.
Overview of the Blender “FLIP Fluids” add-on for simulating fluids version 1.0.8a.
by Pavel Blend
Blender add-on “Accurate Region Border” updated to v. 1.1.0.
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Gumroad |
Blender add-on “M-Cleaner” updated to v. 1.3.0.
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Gumroad |
Making neon from the mesh with the Neoner add-on
Blender add-on “M-Cleaner” updated to v. 1.2.1.
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Gumroad |
Blender add-on for saving render and viewport settings to presets and quickly switching between them.
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Gumroad |
BIS (Blender Interplanety Storage) updated to v.1.8.3.
The direction of a Bezier curve, visually indicated by its normals slope, can be checked by the indices of its points.
The Bezier curve points indices always ascending in the curve direction.
So, having two points on the curve we can get the direction through their indices:
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bezier_spline = bpy.context.object.data.splines[0] p0 = bezier_spline.bezier_points[0] p1 = bezier_spline.bezier_points[1] p0_index = next(iter([point[0] for point in bezier_spline.bezier_points.items() if point[1] == p0]), None) p1_index = next(iter([point[0] for point in bezier_spline.bezier_points.items() if point[1] == p1]), None) direction = 'p0 to p1' if p0_index < p1_index else 'p1 to p0' print(direction) # p0 to p1 |
Who guesses – well done!
Parametrizer add-on
