The overall strength of distortion that scales the Base Distortion and Detail Distortion noises.

The size (in image coordinates) of the distortion that scales the Base Distortion and Detail Distortion noises. You can turn on the Per-Component Controls button to adjust this further using the Element Scale parameter.

When the Per-Component Controls button is on, this is the per-axis scaling of the element size.

The angle of distortion. A value of 0 corresponds to the positive X direction in image space.

When off, a single step is taken for each pixel to figure out the source location. Although this is fast, it produces inaccurate results when the directions or scales vary. Turning on this parameter uses a more accurate algorithm to trace curved trajectories. The provided value controls the tracing quality. More pixels per step allows the node to take larger steps (this runs faster, but may miss intermediate variations in the distortion directions).

Combines the pixel values along the direction of distortion by averaging the samples together. This smears the image along the distortion direction.

Adjusts the distortion’s overall strength by the current timestep. The timestep is usually 1/$FPS, but in a sub-stepped simulation it represents the current step size.

Adds large scale distortion for the heat haze. This controls the generic shape of the heat waves.

Turn on Detail Distortion to add finer detail.

The strength of the base distortion, which controls the generic shape of the heat waves.

The Distortion parameter scales this amount.

The size (in image coordinates) of the base distortion that’s scaled by Element Size. You can turn on the Per-Component Controls button to adjust this further using the Element Scale parameter.

When the Per-Component Controls button is on, this is the per-axis scaling of the element size.

Adds small scale distortion for the heat haze. This controls the finer details of the heat waves.

Turn on Base Distortion to control the overall shapes.

The strength of the detail distortion, which controls the finer details of the heat waves.

The Distortion parameter scales this amount.

The size (in image coordinates) of the detail distortion that’s scaled by Element Size. You can turn on the Per-Component Controls button to adjust this further using the Element Scale parameter.

When the Per-Component Controls button is on, this is the per-axis scaling of the element size.

Lower this value to make the detail distortion appear where there is less base distortion. By default, the detail noise is only prominent where there is strong base distortion.

The amount of detail in the distortion. Higher values increase how fine the distortion details are.

Blurs the source input relative to the strength of distortion. This increases how realistic the heat haze effect is.

The size of the source blur effect’s radius in image space. You can turn on the Per-Component Controls button to adjust this further using the Scale parameter.

When the Per-Component Controls button is on, this is the per-axis scaling of the blur size.

Distorts the RGB channels of the image separately with different amounts. This creates colorization along the distortion unique to the chromatic aberration effect.

The amount (in image space) to scale all three channels.

The amount (in image space) to scale the red channel. Higher values increase the offset between the channels, making the red channel expand outwards and become more apparent.

The amount (in image space) to scale the green channel. Higher values increase the offset between the channels, making the green channel expand outwards and become more apparent.

The amount (in image space) to scale the blue channel. Higher values increase the offset between the channels, making the blue channel expand outwards and become more apparent.

The amount of time (in seconds) that’s added to the start frame.

The interval length (in seconds) of the noise’s pulse in the third dimension. Lower values increase the rate at which the noise switches its appearance, while higher values decrease this rate.

Adds directional movement to the heat distortion. This is useful when the heat haze is moving along a constant direction, such as a mirage that moves upwards.

The angle of distortion. A value of 0 corresponds to the positive X direction in image space.

How fast the heat haze moves in the given direction. Higher values increase the speed of the heat haze’s movement.