filterColor

A shader hook block that sets the color for each pixel in a filter shader. This hook can be used inside buildFilterShader() to control the output color for each pixel.

filterColor has the following properties:

• texCoord: a two-component vector representing the texture coordinates (u, v).
• canvasSize: a two-component vector representing the canvas size in pixels (width, height).
• texelSize: a two-component vector representing the size of a single texel in texture space.
• canvasContent: a texture containing the sketch's contents before the filter is applied.

Call .set() on the hook with a vector with four components (red, green, blue, alpha) to update the final color.

This hook is available in:

• buildFilterShader()