Foreground texture / image in P3D possible?

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michael.o..

Foreground texture / image in P3D possible?

in General Discussion • Other • 5 months ago

Is there a simple way for adding an image / texture to the foreground of a P3D sketch?

I could render the scene in PGraphics and layer the resulting images in the right order. But is there something as simple as foreground(image);?

Replies(3)

PhiLho

Re: Foreground texture / image in P3D possible?

5 months ago

is there something as simple as foreground(image);?
No. In Processing, images are shown in the order they are drawn: stuff last drawn is in front of previously drawn things.
Although the rules are more complex in 3D, of course. Here, you have to rely on the z coordinate.

michael.o..

Re: Foreground texture / image in P3D possible?

5 months ago

I just found PeasyCam's beginHUD() and endHUD() that does the job!

michael.o..

Re: Foreground texture / image in P3D possible?

5 months ago

It's actually quite simple. Peasycams code shows some lines how to do it:

// In setup()
originalMatrix = (PMatrix3D)getMatrix();
// In draw()
pushMatrix();
hint(DISABLE_DEPTH_TEST);
// Load the identity matrix.
resetMatrix();
// Apply the original Processing transformation matrix.
applyMatrix(originalMatrix);
// Draw the foreground
noStroke();
fill(0);
rect(0, height/2-10, width, 20);
rect(0, height/2-50, width, 20);
rect(0, height/2+30, width, 20);
// ...
hint(ENABLE_DEPTH_TEST);
popMatrix();

Here are two examples:

https://github.com/ixd-hof/Processing/tree/master/Examples/Basics

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