PostFx

Post-processing effects system.

Provides various visual effects that can be applied to canvases including CRT simulation, noise, blur, glow, etc. Based on original Enjin PostFx with expanded functionality.

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Namespace: enjin2

Header: include/enjin2/effects/postfx.hpp

Public Methods

PostFx()

Constructor.

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void update(float dt)

Update effect animations.

dtTime since last update in seconds

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float getTime() const

Get current animation time for time-based effects.

Current time in seconds

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static void applyCrtScanlines(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.5f))

Apply CRT scanlines effect.

canvasTarget canvas to modify paramsEffect parameters

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static void applyMovingScanlines(ICanvas< uint8_t > &canvas, const PostFxParams &params, uint32_t time)

Apply moving scanlines effect.

canvasTarget canvas to modify paramsEffect parameters timeCurrent time for animation

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static void applyBarrelDistortion(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.3f))

Apply barrel distortion effect.

canvasTarget canvas to modify paramsEffect parameters (intensity controls distortion strength)

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static void applyNoise(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.3f))

Apply noise overlay.

canvasTarget canvas to modify paramsEffect parameters

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static void applyBlur(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.5f))

Apply simple blur effect.

canvasTarget canvas to modify paramsEffect parameters

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static void applyGlow(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.4f))

Apply glow/bloom effect.

canvasTarget canvas to modify paramsEffect parameters

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static void applyDither(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(0.5f))

Apply dithering pattern.

canvasTarget canvas to modify paramsEffect parameters

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static void applyContrast(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(1.2f))

Apply contrast adjustment.

canvasTarget canvas to modify paramsEffect parameters (intensity = contrast multiplier)

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static void applyBrightness(ICanvas< uint8_t > &canvas, const PostFxParams &params=PostFxParams(2.0f))

Apply brightness adjustment.

canvasTarget canvas to modify paramsEffect parameters (intensity = brightness offset)

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static void applyEffectChain(ICanvas< uint8_t > &canvas, const std::vector< std::pair< EffectType, PostFxParams > > &effects, uint32_t time=0)

Apply multiple effects in sequence.

canvasTarget canvas to modify effectsVector of effect type and parameter pairs timeCurrent time for animated effects

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Private Methods

static uint8_t random()

Simple random number generator for effects.

Random value 0-255

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static uint8_t clamp4bit(int value)

Clamp value to 4-bit range (0-15)

valueInput value Clamped value

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static uint8_t getDitherPattern(uint8_t x, uint8_t y)

Get dither pattern value for coordinates.

xX coordinate yY coordinate Dither pattern value

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