Procedural Vines - Troubleshooting and support

Focused checks

Swipe the table to read every column.

Symptom	Check
Regenerate finishes with no strands	Check Seed Count / Extra Seeds, actor origin outside supporting collision, trace distance and blocking collision. Floor anchors require Allow Horizontal Surfaces; an exclusion containing the root can reject generation.
Stems stop before Max Length	A strand may reach an unsupported edge, exclusion or branch-length limit. Review the supporting collision and Step Distance; Max Length is a budget, not a guaranteed length.
A floor path starts in an unexpected direction	Enable Allow Horizontal Surfaces and set an explicit actor-local Growth Direction such as (1, 0, 0), with Upward Bias = 0 and Gravity Sag = 0. A heading parallel to the normal uses a tangent fallback. Wander Strength = 0 also removes the opt-in initial root fan.
A strand stops at a mesh seam	Check collision on both meshes, their alignment and the supporting interval. Reduce Step Distance for curvature and review trace reach. Surface changes must remain locally supported; a farther endpoint alone does not permit a gap crossing.
Shape changes when moved	The actor samples a different surface and world-space exclusions. A fixed seed does not freeze the environment.
Surface Offset does not move the stem away	Stem clearance uses its radius, root flare and radius noise. Surface Offset primarily affects foliage attachment.
Changing Leaf Size Range has little effect	Leaf Size Range affects both rendering paths. Check Leaf Instance Scale, age near the growing tip and Leaf Size Variation when inspecting mesh instance size.
Single leaf mesh appears ignored	Any valid Leaf Variation Meshes entry takes precedence. Clear that array to use Leaf Static Mesh.
Leaf or stem tint does not show	Procedural tint is stored in vertex colors. The material must read it. Instanced leaves use mesh/material color, not the procedural quad tint.
Leaves appear near an opening	Check valid world bounds and depth, then regenerate. Exclusion boxes are per vine actor and remain fixed when actors move.
Is Generating never settles during edits	Stop issuing repeated Regenerate requests or moving the actor. Each new request cancels the current job.
Playback shows no route	Generate a supported path first and wait for completion. Confirm Growth Progress, playback direction and positive Growth Speed. Clear removes the cached route.
Animated growth looks stepped or lags	Geometry application is asynchronous. Review Growth Update Rate, strand/leaf density and collision cooking; do not regenerate the surface paths every playback frame.
Climbing cannot start	Use a Character owner, face blocking simple collision, check Detection Reach, trace channel and surface-normal thresholds. Leaves have no collision.
Character climbs unrelated walls	The component accepts blocking geometry. Restrict Climb Trace Channel and target collision responses.
Character keeps moving after releasing input	Send Set Climb Input(0, 0) on input completion/cancellation. Stored values persist until changed or climbing stops.
Climbing catches at an edge	Inspect capsule size, supporting simple collision, Reattach Distance and mantle clearance. Supply your own animation/IK and validate the movement against your geometry.

For a reproducible report, include engine and plugin versions, the relevant actor/component settings, seed, target collision setup, expected result and a screenshot or short recording. Remove private data from logs before sharing.

Get help

Report a Procedural Vines issue through the shared support center. See the support guide for private tickets and attachments, or visit the Athian Games Discord.

Symptom

Check

Regenerate finishes with no strands

Check Seed Count / Extra Seeds, actor origin outside supporting collision, trace distance and blocking collision. Floor anchors require Allow Horizontal Surfaces; an exclusion containing the root can reject generation.

Stems stop before Max Length

A strand may reach an unsupported edge, exclusion or branch-length limit. Review the supporting collision and Step Distance; Max Length is a budget, not a guaranteed length.

A floor path starts in an unexpected direction

Enable Allow Horizontal Surfaces and set an explicit actor-local Growth Direction such as (1, 0, 0), with Upward Bias = 0 and Gravity Sag = 0. A heading parallel to the normal uses a tangent fallback. Wander Strength = 0 also removes the opt-in initial root fan.

A strand stops at a mesh seam

Check collision on both meshes, their alignment and the supporting interval. Reduce Step Distance for curvature and review trace reach. Surface changes must remain locally supported; a farther endpoint alone does not permit a gap crossing.

Shape changes when moved

The actor samples a different surface and world-space exclusions. A fixed seed does not freeze the environment.

Surface Offset does not move the stem away

Stem clearance uses its radius, root flare and radius noise. Surface Offset primarily affects foliage attachment.

Changing Leaf Size Range has little effect

Leaf Size Range affects both rendering paths. Check Leaf Instance Scale, age near the growing tip and Leaf Size Variation when inspecting mesh instance size.

Single leaf mesh appears ignored

Any valid Leaf Variation Meshes entry takes precedence. Clear that array to use Leaf Static Mesh.

Leaf or stem tint does not show

Procedural tint is stored in vertex colors. The material must read it. Instanced leaves use mesh/material color, not the procedural quad tint.

Leaves appear near an opening

Check valid world bounds and depth, then regenerate. Exclusion boxes are per vine actor and remain fixed when actors move.

Is Generating never settles during edits

Stop issuing repeated Regenerate requests or moving the actor. Each new request cancels the current job.

Playback shows no route

Generate a supported path first and wait for completion. Confirm Growth Progress, playback direction and positive Growth Speed. Clear removes the cached route.

Animated growth looks stepped or lags

Geometry application is asynchronous. Review Growth Update Rate, strand/leaf density and collision cooking; do not regenerate the surface paths every playback frame.

Climbing cannot start

Use a Character owner, face blocking simple collision, check Detection Reach, trace channel and surface-normal thresholds. Leaves have no collision.

Character climbs unrelated walls

The component accepts blocking geometry. Restrict Climb Trace Channel and target collision responses.

Character keeps moving after releasing input

Send Set Climb Input(0, 0) on input completion/cancellation. Stored values persist until changed or climbing stops.

Climbing catches at an edge

Inspect capsule size, supporting simple collision, Reattach Distance and mantle clearance. Supply your own animation/IK and validate the movement against your geometry.