UKismetSystemLibrary::DrawDebugCone

function Engine Blueprint Deprecated Since 4.0

Deprecated: DrawDebugCone has been changed to use degrees for angles instead of radians. Place a new DrawDebugCone node and pass your angles as degrees.

#include "Kismet/KismetSystemLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintCallable

Description

Draws a wireframe cone using angles in radians. Superseded by DrawDebugConeInDegrees, which is functionally identical but takes angles in degrees.

Caveats & Gotchas

• Deprecated in favor of DrawDebugConeInDegrees — the Blueprint node is marked DeprecatedFunction and placing it warns to switch nodes.
• AngleWidth/AngleHeight are in radians here, unlike almost every other angle parameter in this library which uses degrees — a common source of near-invisible or wildly oversized cones.
• Compiled out entirely in Shipping and Test builds since the UFUNCTION is DevelopmentOnly.

Signature

static void DrawDebugCone(const UObject* WorldContextObject, const FVector Origin, const FVector Direction, float Length, float AngleWidth, float AngleHeight, int32 NumSides, FLinearColor LineColor, float Duration = 0.f, float Thickness = 0.f)

Parameters

Name	Type	Description	Default
WorldContextObject	const UObject*	World context used to resolve which world to draw in.	—
Origin	const FVector	World-space apex of the cone.	—
Direction	const FVector	Direction the cone points, from the apex.	—
Length	float	Length of the cone from apex to base.	—
AngleWidth	float	Half-angle of the cone in the horizontal plane, in radians.	—
AngleHeight	float	Half-angle of the cone in the vertical plane, in radians.	—
NumSides	int32	Number of sides used to approximate the cone's base.	—
LineColor	FLinearColor	Color of the drawn cone.	—
Duration	float	How long the cone persists, in seconds. 0 draws for a single frame.	0.f
Thickness	float	Line thickness in screen pixels.	0.f

Return Type

void

Example

Draw a cone (prefer DrawDebugConeInDegrees instead) C++

UKismetSystemLibrary::DrawDebugCone(
    this,
    GetActorLocation(),
    GetActorForwardVector(),
    500.f,
    FMath::DegreesToRadians(30.f),
    FMath::DegreesToRadians(30.f),
    16,
    FLinearColor::Red,
    1.0f);

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	deprecated	Superseded by DrawDebugConeInDegrees.

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