[Solved] Shader compilation issue: Error X3004

[Andy_rst]

Hi

I have made Post process material with custom node and code. I just copied Radial blur custom node and try to compile material but without luck. I have error: Error [SM5] error X3004: undeclared identifier ‘GetPostProcessInputSize’

Both nodes are 100% identical just copy and paste. Same error if create new empty material.

p.s. any added HLSL code show me error: Error [SM5] error X3004: undeclared identifier …!

[Andy_rst]

With r.ShaderDevelopmentMode=1:

p.s. try it on 4.9 and 4.10 engine versions.

[Andy_rst]

Solved. Custom node need to be connected with SceneTexture:PostProcessInput0: