Legacy Blur

2D Modifier  -  Blur the image

Types of blur

Here are the different types of shapes that are supported by legacy blur.

These shapes are configurable in the Parameters editor:

• Gaussian
• Box
• Hexagonal
• Spin
• Radial
• Directional
• Circular
• Random
• Diffuse

In addition to the choice of the shape, other parameters such as lightness and down-sampling can be configured. Here are three examples of legacy blur presets:

• Bloom
• Glow
• Frozen window

Here are more examples on the effect of the size and lightness parameters:

• No Blur
• Size 1 - Down Sampling 1 - Base size 20px
• Size 1 - Down Sampling 1 - Base size 100px
• Size 4 - Down Sampling 1 - Base size 100px
• Size 1 - Down Sampling 6 - Base size 100px
• Size 1 - Down Sampling 6 - Base size 100px - Source Level 100
• Size 1 - Down Sampling 6 - Base size 100px - Source Level 100 - Lightness 50

Here is a little trick to transform a 8bit picture into a 16bit one for smoother displacement when using the Displace (check directly at 1min49). This method can be used in a general way to prevent banding in gradients :

Blur Parameters

Sample Numbers : The size of the hight quality blur pass (number of samples used)

Samples down Sampling : What level of precision these samples will be. For instance for an image of 64x64 pixels, with a down sampling of 1/32, the blur sample resolution will be of 2x2 pixels

Samples Distance : Size of the low-quality blur pass (how far apart will the samples will be). The more higher the size is (more samples), the more the blur “radius” will seem high. Note that as base size is expressed in pixels, down sampling will also affect this parameter.

    Oil.createObject("BlurTextureModifier")