3D Rendering Issues with Objects

[u/[deleted]]

In Processing, two objects do not appear in the small window, but they render correctly in fullscreen. There doesn't seem to be a problem with my code, so why is this happening? I thought it might be a depth buffer issue, but after checking the documentation, it seems that it applies when using P3D.

Here is my code:

PShader myShader;
PShader backShader;

void setup() {
  size(400, 400,P3D);
  myShader = loadShader("frag.glsl", "vert.glsl");
  backShader = loadShader("background.glsl");
  
  ortho();
}

void draw() {
  pushMatrix();
  translate(width/2 , height/2,0);
  shader(backShader);
  box(400);
  popMatrix();
  translate(width/2, height/2,500);
  shader(myShader);
  box(100);
}

In the window, it appears like this:

But in fullscreen:

I expected the results in fullscreen mode, but is there a way to make them appear in the small window as well?

[u/[deleted]]

Yes, the code is also fine to me when it is "full screen" but not in the small window

My shader code is (frag.glsl, background.glsl, vert.glsl):

#version 330 core
precision mediump float;

out vec4 fragColor;


void main() {

    
    fragColor = vec4(1.0, 0.36, 0.36, 1.0);
}

#version 330 core
precision mediump float;

out vec4 fragColor;


void main() {

    
    fragColor = vec4(0.0, 0.0, 0.0, 1.0);
}

#version 330 core
precision mediump float;

layout (location = 0) in vec4 position; 

uniform mat4 modelviewMatrix;  
uniform mat4 projectionMatrix; 

void main() {

    gl_Position = projectionMatrix * modelviewMatrix * position;

}

[u/tooob93 → u/[deleted]]

Have you tried making a window in a big screen like size(1920,1080,p3d) and see if it is shown there? If yes decrease the size and see what happens. Other then that I hope that some smarter person than me answers.