Today I started a series of tutorials on python scripting and Blender 3D.
The first tutorial is how to draw using the Blender 3D features with the grease pencil utility using the Python scripting language.
Open Blender 3D in the scripting section and enter the source code below.
import bpy
import random
rand1 = random.randint(-3, 3)
rand2 = random.randint(-3, 3)
rand_size = random.randint(70, 76)
gpencil_data = bpy.data.grease_pencils.new("GPencil")
gpencil = bpy.data.objects.new(gpencil_data.name, gpencil_data)
bpy.context.collection.objects.link(gpencil)
gp_layer = gpencil_data.layers.new("lines")
gp_frame = gp_layer.frames.new(bpy.context.scene.frame_current)
gp_stroke = gp_frame.strokes.new()
gp_stroke.line_width = rand_size
gp_stroke.points.add(count=4)
gp_stroke.points[0].co = (rand1,rand2,rand1)
gp_stroke.points[1].co = (rand2,rand1,rand2)Run the script several times to see the effect produced.
Here is the result of running this script:
