Light shader help needed

jovlem

Hello,

I want to use the "Light" shader part but need some help with it so I understand how it works. Does anyone know some good light shader tutorials? Most tutorials are for the fragment shader.

Please take a look at the screenshots below. When I connect the diffuse input to the diffuse output, I get a different result as when I leave it unconnected. Why is that. How can I get the same result with the diffuse input and output connected ( so it looks the same as if the nodes are unconnected )?

xqua

According to the Godot Shading doc, if you do not write a shader function, then the default one is used. Aka, as long as you don't touch the output, then nothing "new" happens.

By plugging the diffuse input to the diffuse output, you are making a modification, therefore losing the default behavior.

jovlem

Okay but is there a way to re-produce this defualt behavior?

Or would this easier to achieve with a text shader instead of the visaul shader which I am using now?

Megalomaniak

For the default shader, if you want to get it as an editable text you can create a spatial material and then convert it.

https://docs.godotengine.org/en/stable/tutorials/shading/shader_materials.html#converting-to-shadermaterial

Sadly it will not include the Light shader in my experience. However if you don't plan to actually change it then you don't need to override it(which is what a custom shader does, it overrides the outputs you write into).