### Author:  [@clankill3r](https://discourse.processing.org/u/clankill3r)
#### Post date: [August 17, 2019, 2:17pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/1 "2019-08-17T14:17:28Z")
I made a google docs about what variables are used in what shader.
It might be usefull to someone some day.
> **[P5 Shaders](https://docs.google.com/spreadsheets/d/1t00bVoEWSU7kgUq6X3opd7b_rQEZsqOkfhFzs3y9exc/edit?usp=sharing)**
>
> Sheet1
>
> \
### Author:  [@quark](https://discourse.processing.org/u/quark)
#### Post date: [August 17, 2019, 4:18pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/2 "2019-08-17T16:18:35Z")
Thanks that is helpful.
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### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [August 17, 2019, 4:48pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/3 "2019-08-17T16:48:47Z")
Very helpful, thank you so much! Is that a work in progress, or is it complete (as of now)?
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### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [August 17, 2019, 4:57pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/4 "2019-08-17T16:57:07Z")
… I tried adding a markdown copy to the wiki here – what do you think (or would you prefer to leave it in the gdoc only)?
- [https://github.com/processing/processing/wiki/Advanced-OpenGL#opengl-processing-shaders](https://github.com/processing/processing/wiki/Advanced-OpenGL#opengl-processing-shaders)
---
### Author:  [@clankill3r](https://discourse.processing.org/u/clankill3r)
#### Post date: [August 17, 2019, 7:26pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/5 "2019-08-17T19:26:47Z")
It is really hard to read that table.
I made a image with processing. Feel free to improve, script is a bit sloppy, didn’t want to spend to much time. The csv is made with the file \> download \> csv option from google docs.
```auto
void setup() {
size(800, 1000);
String[] lines = loadStrings("P5 Shaders - Sheet1.csv");
float x1, x2, y1, y2;
x1 = x2 = y1 = y2 = 0;
int cols = 0;
background(255);
pushMatrix();
translate(200, 200);
for (int i = 0; i < lines.length; i++) {
String[] tokens = split(lines[i], ",");
if (i == 0) {
pushMatrix();
for (int j = 1; j < tokens.length; j++) {
pushMatrix();
String file = tokens[j];
translate((j-1) * 25 + 7, 12);
rotate(radians(-45));
fill(0);
text(file, 0, 0);
popMatrix();
}
popMatrix();
}
else {
translate(0, 20);
fill(i % 2 == 0 ? color(255) : color(230));
noStroke();
rect(-10, 0, 325, 20);
if (i == 1) {
x1 = screenX(-10, 0);
y1 = screenY(-10, 0);
x2 = screenX(-10 + 325, 0);
cols = tokens.length-1;
}
else if (i == lines.length-1) {
y2 = screenY(-10, 20);
}
textAlign(LEFT, TOP);
fill(0);
text(tokens[0], -180, 0);
for (int j = 1; j < tokens.length; j++) {
if (tokens[j].equals("")) continue;
pushMatrix();
translate((j-1) * 25, 0);
fill(0);
//text(tokens[j], 0, 0);
//ellipseMode(CORNER);
ellipse(2, 10, 8, 8);
popMatrix();
}
}
}
popMatrix();
//stroke(255,0,0);
noFill();
rectMode(CORNERS);
rect(x1, y1, x2, y2);
for (int i = 0; i < cols; i++) {
stroke(0);
if (i == 7) stroke(255,0,0);
float x = map(i, 0, cols, x1, x2);
line(x, y1, x, y2);
}
println(cols);
}
```
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### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [August 21, 2019, 2:09pm UTC](https://discourse.processing.org/t/opengl-processing-shader-sheet/13432/6 "2019-08-21T14:09:23Z")
Idea for an improved version: parse the glsl shader files directly from Processing (instead of using a csv) to generate that image. Then if the shaders change it’s trivial to regenerate the image 🙂