Episode #14 sampler arrays indexed with non-constant expressions are forbidden in GLSL 1.30 and later

[icxd]

int index = source.indexOf("#type") + 6;
int eol = source.indexOf("\r\n", index);
String firstPattern = source.substring(index, eol).trim()

index = source.indexOf("#type", eol) + 6;
eol = source.indexOf("\r\n", index);
String secondPattern = source.substring(index, eol).trim();

(in Shader.java)

trying to follow this tutorial on linux (ubuntu 22 or something) and that bit of code completely breaks because of the \r\n.
i tried changing it to be just \n but then it just break. if anybody got a version that would work on linux, thanks.

EDIT:
i forgot to mention that i tried compiling it on my other windows machine using \r\n and it worked completely fine without any issues.

[athaun]

I experienced the same issues when I went through the series...
*nix systems End of line character is just a \n, DOS/NT based systems use \r\n. Sometimes git will convert automatically between them, if not, the program dos2unix will convert from NT to *nix style EOL characters.

As for the error in the title of this issue,

sampler arrays indexed with non-constant expressions are forbidden in GLSL 1.30 and later 

This is due to the fact that the openGL minimum spec does not require manufacturers to implement the openGL driver with dynamic indexing. For me, I had no issues when using a Nvidia GPU, but I experienced the error when using an AMD gpu. The solution, as annoying as it can be is to not index into an array/sampler using a dynamic value.
The problem is that some implementations of the openGL specification don't support dynamic indexing into uniform sampler2D arrays (uTexture[texID]), so you have to manually define it. Check out the bottom of this page to see the modified main function in the glsl program. athaun/Gprocessing#1
Same error also can be seen in these other issues:
#7
and
#8