Knowing how much memory Gaea will need for your project helps avoid performance issues and crashes. Here’s a simplified approach to understanding memory requirements in Gaea.

Understanding Memory Needs

• Memory Demand: The more complex and detailed your terrain, the more memory it requires.
• Factors Affecting Memory: Resolution, node complexity, and layering all influence memory usage.

Resolution

• Impact of Resolution: Higher resolutions consume more memory. A 2048x2048 resolution needs significantly less memory than an 8192x8192 resolution.
• General Rule: Doubling the resolution quadruples memory usage. For example, going from 1024x1024 to 2048x2048 will increase memory requirements fourfold.

Heightfields

• Heightfield: The 3D representation of your terrain in Gaea.
• Memory Calculation:
  • Memory required = Resolution (width x height) x Bit Depth
  • Gaea uses 32-bit heightfields for high precision.
• Example: For a 1024x1024 resolution with 32-bit depth:
  • 1024 x 1024 x 4 bytes = ~4 MB

Layering Nodes

• Nodes: Each node in Gaea represents an action or modification. More nodes mean more memory.
• Layering: Stacking multiple layers adds depth but also increases memory requirements.

System Memory and Performance

• Plan for Headroom: Keep at least 25-30% of your system’s RAM free to ensure smooth performance.
• Memory-Saving Tips: Use lower resolutions and simpler nodes while experimenting. Gradually increase complexity as your project nears completion.

Exporting

• Export Size: The larger the resolution at export, the more memory you’ll need during that process.
• Preview Exports: Try lower resolutions for test exports to verify results before the final high-resolution export.

Quick Tips for Beginners

• Start with Lower Resolutions: Build your terrain in 1024x1024 and increase resolution as needed.
• Simplify Your Node Graph: Fewer nodes use less memory. Start with basic nodes and add detail as you go.
• Keep Track of Available Memory: Regularly check your system’s memory usage to prevent overloads.

With these tips, you’ll be better prepared to manage memory efficiently in Gaea and ensure smoother workflows and stable project builds.