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Louis Sciannamblo

Concept Art and Tech Art
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Blender Plant Generator

August 21, 2024

Desiring a more hand-authored approach, this generator makes use of hand-made leaf, fruit and flower meshes, as well as hand-authored splines for the branches.
These are placed in collections, the contents of which are randomly instanced when the collection is picked.

Draw Trunk Curve

Trunk directly uses radius from spline points

Slope Range defined between Max and Min values

Slope Randomization

Local Z rotation randomization

Full control of angle distribution of branches

Turn

Twist

Gravity with falloff

Branch length scales separately from circumference.

Branch always follows parent circumference at radius 1

Minimum distance distribution

Density %

Subsequent branch layers inherit attributes from their parents, otherwise spawn similarly to first branch layer on Trunk

Trunk > Branch > Branch2 (optional) > Leaves > Flowers > Fruits

Seed controls all Randomized aspects of plant

Canopy mesh can be used to snap branches and leaves to a particular shape.

Canopy Snap: all branches whose endpoints are less than X distance from mesh surface will snap. Currently occurs before Gravity displacement

All branches, leaves, fruits, etc can be mirrored along curve normal

All branches, leaves, fruits, etc can be radially instanced.

trunk and branch curves can be given a profile and twisted. A decent start for a future sculpt

A profile curve can be used on branches and/or leaves to control scaling over the relative length of their parent.

Controlled subdivision count along length of Trunk and any set of branches. Trunk, Branches 1 and Branches 2 controlled separately

Similar controls for circumference definition

Automatically generated Vertex Colour outputs help mask Growth and Wind WPO effects

Automatically generated and stored UV coordinates contain position data for Growth effect. With simple logic in the shader using these 2 sets of data, this can be made to control a plant growth animation in WPO.

Stylized Unreal Water Shader (WIP) →

Archive

  • August 2024
    • Aug 21, 2024 Blender Plant Generator Aug 21, 2024
    • Aug 20, 2024 Stylized Unreal Water Shader (WIP) Aug 20, 2024