UKismetRenderingLibrary::CalculateProjectionMatrix

function Engine Blueprint Since unknown

#include "Kismet/KismetRenderingLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Calculates a projection matrix from a FMinimalViewInfo, using its own aspect ratio regardless of whether bConstrainAspectRatio is set.

Caveats & Gotchas

• Ignores bConstrainAspectRatio on the view info — the resulting matrix always uses the view's raw aspect ratio, which may differ from what you'd see in the actual game viewport if aspect ratio constraints are active.
• Displayed in Blueprint as 'Calculate Projection Matrix (Minimal View Info)' due to the DisplayName meta, not the raw function name.
• Useful for custom render-to-texture or camera math, but this does not account for any post-process or lens settings beyond what's stored on FMinimalViewInfo.

Signature

static FMatrix CalculateProjectionMatrix(const FMinimalViewInfo& MinimalViewInfo)

Parameters

Name	Type	Description	Default
MinimalViewInfo	const FMinimalViewInfo&	View info (FOV, aspect ratio, ortho settings, near/far planes) to build a projection matrix from.	—

Return Type

FMatrix

Example

Compute a projection matrix from a camera's view info C++

FMinimalViewInfo ViewInfo;
CameraComponent->GetCameraView(0.f, ViewInfo);
FMatrix ProjMatrix = UKismetRenderingLibrary::CalculateProjectionMatrix(ViewInfo);

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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