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

[PLAYERKILLERS]

A user has reported this error

 

Error creating WebGL renderer :0:2(12): warning: extension GL_ARB_gpu_shader5' unsupported in fragment shader
0:21(29): error: sampler arrays indexed with non-constant expressions are forbidden in GLSL 1.30 and later

[obiot]

do you know on which platform this is ? also which version of melonJS are you currently using ?

I'm asking, as of version 6.x (and through 7.x) WebGL detection and implementation have been improved to especially avoid using it when not fully supported.

[obiot]

FYI, see here : https://github.com/melonjs/melonJS/issues/982

 

[PLAYERKILLERS]

I believe he's using Linux with a possibly wonky graphics driver. I'm using 7.1.1 with an edit for texture packer. The 8.0 build you linked adds gravity to the game. 

https://discord.gg/ch6u6BX 

[obiot]

which edit do you have for texture packer, is it the one for the free texture packer we also added in 8.0 ? 

as for the gravity, yes, as part of the 8.0 version (major version increase, so some breaking changes) we revamped a bit the physic implementation to be closer to those physic engine out-there (with the will to be able to use one of them through a plugin) and as a consequence we now have a world global gravity settings that can then be lowered or amplified per physic object (instead of previously where each object gravity were managed separately), see here for the detailed changes : https://github.com/melonjs/melonJS/wiki/Upgrade-Guide#71x-to-800

but if you switch to 8.0, you can just disable the gravity by setting me.game.world.gravity to 0 (it's a vector) and you should be back to the previous 7.x behavior.

last but not least as part of the WebGL testing I think we should then try to compile/link the built-in shaders and if failing then display a error message in the console and revert back to the canvas renderer, l'll look into it this week.

 

[obiot]

@PLAYERKILLERS test build with the fallback fix to Canvas is available, see here https://github.com/melonjs/melonJS/issues/982

 

 

[PLAYERKILLERS]

Thanks again, I'll ask the user to test it.

[obiot]

@PLAYERKILLERS any feedback from your tester ? 

in the mean time I just pushed some further changes to the WebGL renderer in order to fix the "sampler arrays indexed with non-constant expressions are forbidden in GLSL 1.30 and later" error which will allow to have the WebGL renderer enabled on more Linux platform as well.

https://melonjs-builds.s3.amazonaws.com/index.html?prefix=artifacts/master/2597/build/

Edited March 8, 2020 by obiot

[PLAYERKILLERS]

He hasn't responded with a result. I'll add this update. Thanks again for the update.