Terrain.js sketch

p5.js Coding Questions
1

Here I attempt to create terrain as per Shiffman challenge
Web Editor
Can’t use CLOSE on endShape like in vanilla processing or JRubyArt, adds spurious lines.

2

yes, the SHAPE starts at x =0 and is a triangle strip and one ROW wide and ends at COLS

a CLOSE command would connect the right end with a triangle to x = 0
that 2 lines to x = 0 is what you see as MESSY

the whole plane consists of ROWS times of that triangle strips

so what ends you would like to connect?

3

The surface looks jagged (on terrain outline), actually in vanilla processing it looks OK either with or without CLOSE.

4

experiment again with that CLOSE but use
h = 40;

++ and check out my version https://editor.p5js.org/kll/sketches/S1myrBI5X

1 Like
5

Here’s my hack of your sketch using hash (I get the impression it runs a bit faster?)

6

good, https://editor.p5js.org/kll/sketches/S1myrBI5X
has mouse scroll and keyboard [s] UP DOWN
and make the flat waterlevel with constrain

7

I will have to see what I can do in JRubyArt, where I have Vec3D class that can translate to vertex.