Can you use glFog() in P3D mode?

Xenthera

I'm currently working on a voxel engine game and I would like to implement fog, however poking through the opengl library I can't seem to find any reference to that OpenGL function.

Any help?

Thanks!

nabr

from nehe gamedev tutotials

setup

• https://github.com/sutoadam/JOGL/blob/0be4cbad48c273f579a2e10d616e6d83d927e2b6/src/main/java/net/gamedev/nehe/JOGL2Nehe15Fog.java#L160-L166

draw

• https://github.com/sutoadam/JOGL/blob/0be4cbad48c273f579a2e10d616e6d83d927e2b6/src/main/java/net/gamedev/nehe/JOGL2Nehe15Fog.java#L252

advanced jogl in processing

opengl reference:
https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFog.xml

google search:
https://www.google.com/search?q=gl_fog+opengl+example

Xenthera

So it appears that glFog is only available in GL2.

I'm able to get the GL2 context from the GL2ES2 gl like this

pgl = (PJOGL) beginPGL(); GL2ES2 gl = pgl.gl.getGL2ES2() GL2 = gl.getGL2()

I'm able to access the glFog() functions but when I run the program I get the error

com.jogamp.opengl.GLException: Not a GL2 implementation

I'm stuck...

Xenthera

Nevermind, I had to set PJOGL.profile = 1;

in settings() to have backwards compatibility. Thanks for the help nabr!

nabr

duplicate:
https://forum.processing.org/two/discussion/26085/can-t-get-fog-working-in-my-test#latest

It will work with an older version of processing version 2.2.1

https://github.com/processing/processing/wiki/Advanced-OpenGL-in-Processing-2.x

https://pastebin.com/yBhuNwqe

Xenthera

Hey nabr, I downloaded processing 2.2.1 and ran the pastebin sketch.. It still didn't work. I'm giving up on the glFog idea and i'm probably just gonna learn how to write a fog shader... Thanks for the help regardless.