Table of Contents

Class GLBulgeBlock

Namespace
VisioForge.Core.MediaBlocks.OpenGL
Assembly
VisioForge.Core.dll

OpenGL bulge effect block for spherical geometric distortion and lens simulation. This block creates a bulge or bubble effect that simulates looking through a convex lens or magnifying glass. Uses GPU-accelerated OpenGL shaders to perform real-time geometric transformation that expands the center of the image while compressing the edges. Essential for creating artistic visual effects, lens simulation, virtual reality content, and creative video transformations. Provides configurable bulge intensity and center positioning. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLBulgeBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GLBulgeBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLBulgeBlock class. Creates a GPU-accelerated bulge effect block with default distortion settings.

public GLBulgeBlock()

Properties

Input

Gets the input pad for connecting video sources to be processed.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads for this bulge block.

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the output pad for connecting to downstream processing blocks.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets all output pads for this bulge block.

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Type

Gets the media block type identifier.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the OpenGL bulge element within the pipeline. This method creates the bulge filter with default geometric distortion settings, establishes input and output pads, and prepares the block for GPU-accelerated processing.

public override bool Build()

Returns

bool

true if the bulge element was successfully built and configured; false if initialization failed.

CleanUp()

Releases all resources and performs cleanup operations for this OpenGL bulge block. This method disposes of the bulge filter and resets the build state.

public void CleanUp()

Dispose(bool)

Releases unmanaged and - optionally - managed resources.

protected override void Dispose(bool disposing)

Parameters

disposing bool

true to release both managed and unmanaged resources; false to release only unmanaged resources.

GetCore()

Gets the core BaseElement wrapper that provides additional functionality around the OpenGL bulge filter.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the bulge functionality.

GetElement()

Gets the underlying GStreamer element that performs the bulge operation.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the OpenGL bulge filter.

IsAvailable()

Determines whether this media block is available. Correct NuGet SDK redist should be included into your project. Checks for OpenGL support and GPU shader capabilities.

public static bool IsAvailable()

Returns

bool

true if OpenGL bulge functionality is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this OpenGL bulge block with a pipeline and initializes its internal context. This method is called internally when the block is added to a pipeline.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The MediaBlocksPipeline instance that will manage this block.

See Also