The Slope node creates a selection mask based on the terrain's slope angle, isolating areas within a specified slope range. It is commonly used to target steep cliffs, gentle hillsides, and transitional faces for erosion control, material placement, and biome logic.

The output is a grayscale mask where white represents slopes inside the range and black represents slopes outside it, with optional soft transitions at the boundaries.

Common uses

• Cliff masking for rock materials and sharp detail passes.
• Excluding steep faces from snow, vegetation, or soil accumulation.
• Targeting mid-slope zones for talus, scree, or weathering overlays.
• Driving erosion strength or deposition limits based on incline.
• Creating slope-aware blends for albedo, roughness, and displacement.

Usage tips

• Start by finding your cliff threshold. In many terrains, a single slope band can separate "cliffs" from "walkable" surfaces cleanly.
• Use Falloff to avoid hard material seams. A small falloff yields crisp cliff edges; a larger falloff creates more natural blending, especially after erosion.
• Choose the slope type based on intent. Accurate is better for physically plausible selection and preserves real terrain variation; Normalized is useful when you want a more even response across the slope range or a more stylized, controllable mask.
• Use Micro Accent sparingly. It can help pick up subtle ridges and small breaks in slope for rock breakup and micro-masking, but too much can introduce noisy selections that fight downstream blends.
• Combine with Height for stronger zoning. Height + Slope is a common pairing for snowlines, rock exposure, vegetation rules, and shoreline cliff detection.

Properties