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[fixed] Uninitialised variable in program.terrain_light.multipass.fragment

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It just occurred to me that this probably should be outside of the Linux issues forum as well, since it's a Wurm/OpenGL issue.


In terrain_light.multipass.fragment.shader, the variable _worldpos is used without being initialised. Some drivers will zero-init it, some will throw an error. On those that throw an error, Wurm will crash.


Having read the shader code, I strongly suspect that terrain lighting isn't quite working as intended if the driver zero-initialises the variable. (But my knowledge of GLSL is a bit rusty, so that's just a hunch)



See also 



Edited by Batolemaeus

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