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Distributing sprinkles using Geometry Nodes in Blender | Blender 4.0 | Beginner Tutorial
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Nov 8, 2024
Learn how we can make a Geometry Nodes setup, that can distribute sprinkles. Check the detailed tutorial on my website. https://usamababar.com/blender-geometry-nodes-distribute-instances-like-particle-system/ Skip to 05:09 to see the full Geometry Nodes setup. #geometrynodes #3d #blender
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0:00
we will be scattering sprinkles using
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geometry nodes just like in this image
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skip to the end of video to see the full
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geometry node setup let's distribute
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sprinkles onto the ice cream top just
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like a particle
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system select the ice cream go to
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Geometry nodes Tab and add a geometry
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nodes modifier by clicking new button in
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the geometry nodes editor when we add a
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geometry nodes modifier for our object
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we see that there are two nodes already
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present group input and group output
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these Define our mesh and all of our
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working should be between these two
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notes we are going to distribute points
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on faces so that we can later instance
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our object on
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them this can be done using the
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distribute points on faces node add it
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by clicking add Point distribute points
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on
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faces place the node between group input
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node and group output node change the
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distribute type from random to pant dis
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this way we can keep some distance
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between the points we see that we have
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distributed points on the faces but the
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mesh has disappeared this is because we
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have replaced the mesh with the new
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distributed points to solve this issue
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we will use join geometry node as it
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will join the mesh and distributed
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points add node by clicking add geometry
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join geometry the input of the join
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geometry can be connected with multiple
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notes connect distribute points on faces
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node and group node to the join geometry
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node for selection-based point
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instancing we can use vertex groups so
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that points only instance on a specific
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area we only want the points to instance
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on the upper half of icecream part to do
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this we add the pre-made vertex group to
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the geometry notes connect the selection
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input of distribute points on faces node
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and connect it to the group input second
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output socket this will add a Boolean in
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selection in the geometry nodes
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modifiers
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panel click the toggle button on the
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right side of selection checkbox this
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will convert the checkbox to a text box
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in the text box enter the name of vertex
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group in this case
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top now we can instance the sprinkles
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using the instance on points node add
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this node by clicking add instance
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instance on points place it after the
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distribute points on faces node now we
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need to add the object that is going to
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instance in our case the sprinkles this
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can be done using the object info node
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add the object info node by clicking add
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input scene object info in object info
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node choose the object which you want to
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instance we have already made sprinkles
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for this scene the object should be
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present in the scene connect the
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geometry output of the object info node
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to the instance input of the instance on
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points node the Orient ation of the
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sprinkles is not correct this is because
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they have instanced with their default
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rotation and all of them should have
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their rotation according to the shape of
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the ice
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cream connect the rotation sockets of
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distribution points on faces node and
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instance on points
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node this does correct the issue but in
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the wrong angle we can correct it by
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adding a rotate instance
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node
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add a rotate instance node and place it
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after the instance on points node change
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the angle of Y AIS to
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90° all of the sprinkles have same
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rotation which is unnatural so we will
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add some
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randomization we will randomize only the
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xaxis so first we will separate all the
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three axes using the combine XYZ node
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added by clicking add utilities Vector
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combine XYZ connect it to the rotation
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input in the combined XYZ node change
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the Y angle to 90° but we have to enter
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the value in radians which is
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1.57 we will randomize the x axis
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between 0 and
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360° add a random value node by clicking
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add utilities random
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value keep the minimum value to zero and
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maximum value to 6.28 in radians and
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connect to the xaxis of combin XYZ
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now the sprinkles look a lot more
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natural when we turn the shading on we
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can see that using the same principle we
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can change scale of
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sprinkles add another random value node
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set the minimum to8 and maximum to 1.2
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and connect to the scale input of
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instance on points node thanks for
5:03
watching comment your thoughts about
5:05
this video see the detailed tutorial on
5:07
my website link in the
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description this is our geometry node
5:19
setup subscribe for
5:24
more