Static Switch support dynamic_branch

[BOXOPHOBIC]

Unity introduced a new #pragma type called dyamic_branch along side shader_feature and multi_compile. This created a dynamic branch behind the scenes while using the keyword state as a bool state.

All that is needed is to generate the pragma like this:

pragma shader_feature_local_vertex _FEATURE

Becomes

pragma dynamic_branch _FEATURE

The best would be to keep all node states(local, stage, etc..) so we can easly switch between shader feature or branch, but not generate the _local, _vertex etc code when used as branch

Edit: https://docs.unity3d.com/Manual/SL-MultipleProgramVariants-declare.html

[Dawie3565]

for info

SG Branching node https://docs.unity3d.com/Packages/com.unity.shadergraph@17.0/manual/Branch-Node.html

SG Integer Node https://docs.unity3d.com/Packages/com.unity.shadergraph@17.0/manual/Integer-Node.html

SG Comparison Node https://docs.unity3d.com/Packages/com.unity.shadergraph@17.0/manual/Comparison-Node.html

Unity thread https://forum.unity.com/threads/keywords-branching.1534114/

Unity doc https://docs.unity3d.com/6000.0/Documentation/Manual/shader-branching.html

[Dawie3565]

see ASE item #74

Branch Node Provides a dynamic branch to the shader. If input Toggle is true the return output will be equal to input True, otherwise it will be equal to input False.

This is determined per vertex or per pixel depending on shader stage. Both sides of the branch will be evaluated in the shader, and the branch not used will be discarded

http://paste.amplify.pt/view/raw/50e41837

[BOXOPHOBIC]

@Dawie3565 quick note, the dynamic_branch pragma is unrelated to shader functions or nodes. It is a new declaration type which replaces shader_feature or multi_compile:

https://docs.unity3d.com/Manual/SL-MultipleProgramVariants-declare.html

[Dawie3565]

bumped to 1.9.3.4

@diogovtx this seems to be related to static switch node

see comments from Cristain

[Dawie3565]

bumped priority up based on workflow needed by Cristain ASAP

[diogovtx]

Implemented in "Static Switch" node in v1.9.3.4:

• Added a new option "Dynamic Branch" that will generate compatible code (requires Unity 2022.1+)
• Renamed "Static Switch" to "Switch" because it now supports both static and dynamic switches