i tested on a
DEBIAN stretch
Linux version 4.14.70-v7+
Raspberry Pi 3 Model B Plus Rev 1.3
using processing 3.4 and
/home/pi/sketchbook/from_PC/flying_terrain/
flying_terrain.pde
and do the above suggested
processing[File][export application] ( to linux)
and get 4 subdirs (application. linux64 linux32 linux-arm64 linux-armv6hf )
for the autostart i use:
if not exist make sub dir
home/pi/.config/autostart/
there in make a file
myautostart.desktop
[Desktop Entry]
Type=Application
Name=my_auto_start
Exec=lxterminal -e /home/pi/.config/autostart/start_processing
Icon=/usr/local/lib/processing/lib/icons/pde-256.png
Comment=start after timedelay
Terminal=true
X-KeepTerminal=false
Categories=Application;
make a bash file
start_processing
#!/bin/bash
# /home/pi/.config/autostart/start_processing
# this will not do anything unless called by a .desktop file
echo '10s'
env sleep 5
echo '5s'
env sleep 5
#...
cd /home/pi/sketchbook/from_PC/flying_terrain/application.linux-armv6hf/
bash flying_terrain
# wait for operator to close window
read -p "press enter to close terminal window"
and make that executable
chmod +x start_processing
just tested.
the code runs much slower as on my old PC
flying_terrain.pde
// from https://www.youtube.com/watch?v=IKB1hWWedMk
//_______________________________________________________________
int cols, rows;
int scl = 20;
int w = 1400, h = 1600;
float flying =0.0;
float xoff, yoff;
float[][] terrain;
//_______________________________________________________________
void setup() {
size(600, 600, P3D);
cols=w/scl;
rows=h/scl;
terrain = new float[cols][rows];
}
//_______________________________________________________________
void draw() {
make_terrain();
background(0, 0, 80);
stroke(120);
fill(100,100,100); // noFill();
translate(width/2, height/2);
rotateX(PI/3);
translate(-w/2, -h/2);
draw_terrain();
}
//_______________________________________________________________
void make_terrain() {
flying -= 0.1;
yoff = flying;
for (int y = 0; y < rows; y++) {
xoff = 0;
for (int x=0; x<cols; x++) {
terrain[x][y]=map(noise(xoff, yoff), 0.0, 1.0, -50.0, 50.0);
xoff += 0.2;
}
yoff +=0.2;
}
}
//_______________________________________________________________
void draw_terrain() {
for (int y = 0; y < rows-1; y++) {
beginShape(TRIANGLE_STRIP);
for ( int x = 0; x < cols; x++) {
// 100,100,100 GREY, 100,200,100 GREEN; when terrain higher NO GREEN
fill(100,150-int(terrain[x][y]),100);
vertex(x*scl,y*scl,terrain[x][y]);
vertex(x*scl,(y+1)*scl,terrain[x][y+1]);
}
endShape();
}
}
you see, i added a auto color fill
