A procedural tree generator built with Three.js. Over 30 tunable parameters and support for exporting to .glb.

https://dgreenheck.github.io/tree-js/

npm install
npm run dev

• color - Color of the tree trunk
• flare - Multipler for base of trunk
• flatShading - Use face normals for shading instead of vertex normals
• length - Length of the base trunk
• maturity: Growth stage of tree
• radius - Starting radius of the trunk
• textured - Apply bark texture

• gnarliness - Max amplitude of random angle added to each section's orientation
• gnarliness1_R - Same as above, but inversely proportional to the branch radius. The two terms can be used to balance gnarliness of trunk vs. branches
• lengthVariance - % variance in branch length
• lengthMultiplier - Length of child branch relative to parent
• levels - Number of branch recursions ( Keep under 5 )
• minChildren - Minimum number of child branches
• maxChildren - Maximum number of child branches
• radiusMultiplier - Radius of child branch relative to parent
• start - Defines where child branches start forming on the parent branch. A value of 0.6 means the child branches can start forming 60% of the way up the parent branch
• stop - Defines where child branches stop forming on the parent branch. A value of 0.9 means the child branches stop forming 90% of the way up the parent branch
• sweepAngle - Max sweep of the branches (radians)
• taper - Radius of end of branch relative to the start of the branch
• twist - Amount of twisting about the vertical axisq

• lengthVariance - % variance in the nominal section length
• radiusVariance - % variance in the nominal section radius
• randomization - Randomization factor applied to vertices
• sections - Number of sections that make up this branch
• segments - Number of faces around the circumference of the branch

• color - Leaf color
• maxCount - Max number of leaves per branch
• minCount - Min number of leaves per branch
• size - Size of leaf texture
• sizeVariance - Variance in leaf size between branches
• style - Leaf billboard style (single or double)
• type - Leaf type (Ash, Aspen or Oak)

• direction - Influences the direction the tree grows towards
• strength - Strength of the sun influence