Dynamic Grass Addon Documentation

Overview

The Dynamic Grass Addon allows you to create interactive, dynamic, and realistic grass fields on any selected object with just one click. Below is a breakdown of the settings and options available in the addon:

Toolbar Buttons

• Add Dynamic Grass: Creates a dynamic grass field on the selected object.
• Add Collision Object: Enables the selected object to interact with the grass as a collision object.

Object Selection

Object: Displays the currently selected object. Make sure you have the correct object selected before adding grass.

Grass Settings

Particles

• Hair Length: Adjust the length of the grass. Example: 4 meters (customizable).
• Type: Choose a grass type to add variation and style:
  • Nothing: Default grass.
  • Wave: Adds a wavy pattern to the grass.
  • Curl: Creates curled grass blades.
  • Braid: Twists the grass into a braided pattern.
  • Radial: Spreads grass in a radial direction.
  • Spiral: Adds a spiral effect to the grass.

Grass Count

• Grass Count: Adjust the total number of grass particles to control density. Example: 1000 particles.

Dynamics

• Use Dynamics: Enables physical interactions with grass (e.g., collision with objects).
• Mass: Sets the mass of individual grass blades, influencing their reaction to forces.
• Brownian Factor: Adjusts random movement for more natural and varied grass motion.

Child Settings

• Child Type: Adds children particles to enhance the look of the grass.
  • None: No children particles.
  • Simple: Basic child particle addition.
  • Interpolated: Smoothly blends child particles for a more natural look.
• Child Percent: Defines the percentage of child particles relative to the parent.
• Randomness: Adds randomness to the child particles for a less uniform look.
• Stiffness: Controls the stiffness of the child particles for more rigid or flexible grass.

Hair Type

• Strand: Grass blades appear as individual strands.
• Strip: Grass blades are rendered as flat strips for stylized effects.

Rendering

• Render Subdiv: Adjusts the subdivision level for smoother rendering of grass.
• B-Spline: Enables B-Spline interpolation for smoother grass curves.
• B-Spline Steps: Sets the number of steps for B-Spline interpolation. Higher values result in smoother curves
• Optimize Performance: Reduce particle count or subdivision levels for faster performance in complex scenes.