how Game Guru allows to modify shader values during game play on runtime to make creepy blurring effects and other stuffs possible?
we have to set specific zones for this to happen?

with lua so yes you can use zones to trigger effects

thanks for oyur reply.. so i i for e.g want a specific effevt i need to create a script that run the specific effect and then place it in a trigger zone to have the effect loaded?

You will have to change, compile and test the shader to do the effect you desire. Then it can be triggered by a lua call within a script that could be startted via a zone.

If you just want blurring there are already lua commands built in that will do this via the post process shaders.

Cheers.

ok but if i modify the shader and recompile it .. the original shader will not exist more.. do i need to make a copy of the original shader , rename it, modify and after recompile to not lost the original?'
i really cant undestrand this is there any example to be used as template?

Probably best to do that yes. Depending on what you change if not done correctly you can get a green screen, crash or just fail to compile errors. I think there was an example somewhere - something to do with chromatic aberration effect.

Updating shaders is a topic in its own right - there are lots of web snippets and books on it though.

Cheers.

ye but i gg could have a better way to maange thme ..maybe in the editor itsself.. and we need many of them... sahders are stuffs that make games looks good .. and we miss them too ..with missed lightning and dynamic shadows that makegg games to fell really ugly.. for the most part LOL

Yes I agree that shadows from dynamic lights is a necessary missing feature.

I don’t think Shader management or editing could be made much easier - it’s an advanced game topic. Unity helps by abstracting a lot of core functions that all shaders use but still needs practice and experience to create new shader effects and in some other engines the shader pipeline is closed whereas in GG it is completely open if you understand HLSL.

Updating the post process shaders in GG is the easiest first step I think. Have a look at those (post-bloom.fx and post-sao.fx) and see how they operate and start with very gentle changes and you may get hooked on shader dev . Notepad++ is great for HLSL editing.

Cheers.

many thanks again for your explaination and help--- i 'll give a look asap