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Hello,

I have been scattering objects on objects for more than 20 years now, and for this I have used literally every tool and software that existed throughout the years.

Blender particles and vertex / face instancing were a half solution, a workaround.

The implementation of geometry nodes made it fun and pleasing to scatter things with Blender for the first time.
So I gathered all my scattering experience, favorite options, test cases and methodology and I made this geometry nodes setup :)

It can be used to scatter polygons on polygons. Abstract, plants, nature, rocks, buildings, antennas on buildings, anything.

Whether you're creating a large open-world environment or a small indoor scene, ia scatter will help you bring life to your project and create natural and immersive scenes in no time. This tool helps you scatter assets with a few clicks, creating a seamless and convincing environment in minutes, easily, with precision and control. Save time and increase productivity by avoiding tedious manual placement, while still retaining the flexibility to make changes on the fly.

Current Features:

• object / collection instancing
• instances realized into real geometry
• instance minimum distance
• viewport optimization (number of instances displayed in viewport)
• viewport proxy instances (bounding box / convex hull)
• weight painted instance distribution
• slope angle distribution
• relative (base geometry) height distribution
• textured instance distribution
• complete instance rotation control with rotation snapping
• complete instance uniform and non uniform scale control
• wind effect on instances
  
• camera culling
• level of detail (lod) functionality, 3 levels
• raycasting control of instances
  
• additional tools to quickly and easily reset the origin of selected objects, select objects of similar size / volume and generate UV maps of selected material of selected object and set up dynamic weight painting of instances (brush) on base geometry (canvas)
  

And I plan on adding new functionality whenever I imagine any new trick.

enjoy :)

Installation:

For example scenes and tutorials check the ia scatter blendermarket documentation page or the iraisynn attinom youtube channel

version history:

version 1.82 (9 November 2022)

• added merge distributed points by distance (works better than distance min in most cases)
• added texture and weight affect scale option
• added reset origin (z=0) button

version 1.71 (29 september 2022)

• added convex hull geometry output
• added raycast target geometry input
  

version 1.64 (24 September 2022)

• added master on/off button
• added secondary wind
• added face camera (useful when scattering image planes)
• added make canvas and make brush menu buttons (for weight dynamic painting)
• fixed math in slope angle distribution
• fixed LOD error
• removed translation and distance from face as redundant. using random min and max values results in same behavior

version 1.58 (28 August 2022)

• added wind system

version 1.51 (19 august 2022)

• changed the scaling behavior. now uniform and non uniform random scales are simultaneous and additive
• cleaned up the geometry node tree

version 1.45 (9 August 2022)

New features:

• added distance and random distance from face along normal setting
• added buttons under ia tools for resetting the origin of the selected object (center and lowest point) with center finding method option
• added button under ia tools for selecting all objects that have similar size/volume to the currently selected object (with similarity tolerance setting)
• added button under ia tools for smart UV projection of selected objects selected material
• added option to modify the UI (split 3d viewport and open up geometry node editor) after ia scatter is added to the scene

changes:

• ia scatter button now adds a new copy of the geometry node group with randomized seed on the selected geometry
• added internal timing for each script operation for optimization and benchmarking purposes. the timing results can be seen in the console

version 1.34 (21 july 2022)

• fixed align to normal, rotation and scale math to respect transform/center/pivot change (based on user feedback)

version 1.32  (20 july 2022)

• added instance translation and random translation feature
• fixed rotation math for better z axis behavior when align to normal is selected

iraisynn attinom discord server