functions

functions-aastep

AnitAliased step() function implemented by Matt DesLauriers in this module https://github.com/stackgl/glsl-aastep

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/aastep.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/aastep-full.yaml

These blocks uses a custom shader. These are the shader blocks:

• global:

• float aastep(float threshold, float value)

functions-decode

This is a set of functions that helps you decode data hided in color by the project data2images

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/decode.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/decode-full.yaml

These blocks uses a custom shader. These are the shader blocks:

• global:

• vec2 getCoord(vec2 res, float col, float row)
• float getUInt(sampler2D tex, vec2 res, float col, float row)
• float getInt(sampler2D tex, vec2 res, float col, float row)
• float getUFloat(sampler2D tex, vec2 res, float col, float row)
• float getFloat(sampler2D tex, vec2 res, float col, float row)
• vec3 getElements(sampler2D tex, vec2 coord)
• float getNumber(sampler2D tex, vec2 res, float col, float row)
• vec2 getPosition(sampler2D tex, vec2 res, float col, float row)
• vec4 getColor(sampler2D tex, vec2 res, float col, float row)

functions-easing

Easing functions originally develop by Robert Penner's and transformed to GLSL by StackGL in this repo: https://github.com/stackgl/glsl-easings

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/easing.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/easing-full.yaml

These blocks uses a custom shader. These are the defines:

• HALF_PI: The default value is 1.57079632679.
• PI: The default value is 3.14159265359.

These are the shader blocks:

• global:

• float linear (in float t)
• float exponentialIn (in float t)
• float exponentialOut (in float t)
• float exponentialInOut (in float t)
• float sineIn (in float t)
• float sineOut (in float t)
• float sineInOut (in float t)
• float qinticIn (in float t)
• float qinticOut (in float t)
• float qinticInOut (in float t)
• float quarticIn (in float t)
• float quarticOut (in float t)
• float quarticInOut (in float t)
• float quadraticInOut (in float t)
• float quadraticIn (in float t)
• float quadraticOut (in float t)
• float cubicIn (in float t)
• float cubicOut (in float t)
• float cubicInOut (in float t)
• float elasticIn (in float t)
• float elasticOut (in float t)
• float elasticInOut (in float t)
• float circularIn (in float t)
• float circularOut (in float t)
• float circularInOut (in float t)
• float bounceOut (in float t)
• float bounceIn (in float t)
• float bounceInOut (in float t)
• float backIn (in float t)
• float backOut (in float t)
• float backInOut (in float t)

functions-map

This function helps you to interpolate a value between an IN range (inputMin to inputMax) to a OUT range (outputMin to outputMax).

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/map.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/map-full.yaml

These blocks uses a custom shader. These are the defines:

• EPSILON: The default value is 1e-07.

These are the shader blocks:

• global:

• float map (in float value, in float inputMin, in float inputMax, in float outputMin, in float outputMax, bool clamp)
• float map (in float value, in float inputMin, in float inputMax, in float outputMin, in float outputMax)

functions-pulse

This one dimensional shaping function made by Inigo Quiles in this article.

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/pulse.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/pulse-full.yaml

These blocks uses a custom shader. These are the shader blocks:

• global:

• float pulse (float x, float peak, float width)

functions-zoom

when you mix this block to another block you can use the functions zoom() or zoomEase(). Both will help you to interpolate any values between the zooms ZOOM_START and ZOOM_END. By default zoom() and zoomEase() will return a float number between 0 and 1. But you can change it to interpolate any thing! Like floats, vec2, vec3, vec4 and even other functions! For that you just need to change de defines: ZOOM_IN, and ZOOM_OUT to what ever you want to interpolate. zoom() use the cuadratic interpolation of smoothstep() but you can use zoomEase() to specify what type of easing interpolation you prefere. Just change the default linear function for any easing functions describe here in the ZOOM_FNC define. Ex: ZOOM_FNC: quadraticInOut

To import this block add the following url to your import list:

import:
    - https://tangrams.github.io/blocks/functions/zoom.yaml

If you want to import this block together with their dependencies use this other url:

import:
    - https://tangrams.github.io/blocks/functions/zoom-full.yaml

These blocks uses a custom shader. These are the defines:

• ZOOM_END: The default value is 20.0.
• ZOOM_MAX: The default value is max(ZOOM_START, ZOOM_END).
• ZOOM_IN: The default value is 0.0.
• ZOOM_OUT: The default value is 1.0.
• ZOOM_START: The default value is 14.0.
• ZOOM_FNC: The default value is linear.

These are the shader blocks:

• global:

• float zoom()
• float zoomEase()