UDK Frontend Cooking: Failing to compile material.

Fogbrain

Hey guys, I have a pretty big problem, I am using this ocean shader I made which is fairly essential to the scene I'm creating. Which works fine and everything in the editor and when I launch the UDK.exe onto my map.

But when I cook the game in Unreal Frontend I get the error message

Warning, Failed to compile Material pkg_Project_Environment.Effects.Updated_Ocean_Shaderv2 for platform PC-D3D-SM3, Default Material will be used in game.

Warning, Failed to compile Material pkg_Project_Environment.Effects.Updated_Ocean_Shaderv2 for platform PC-OpenGL, Default Material will be used in game.

I've looked everywhere on the Epic Games forums and elsewhere for any kind of straight answers, I've heard it has to do with landscape materials but the problem is, this material is just a material.

Also, it works fine once it's cooked and open in the UDK.exe, but the package game via the installer I created just shows nothing.

Does anyone know the fix for this?

If so, you're a goddamn life saver.

Butthair

What is erv2? Is that your level?

Fogbrain

Its called 'Updated_Ocean_Shad erv2', for some reason there's a space there. It's the name of the ocean shader I made thats not compiling and causing problems.

Butthair

I would recommend never using spaces. UDK is not Unity, it does not play well with such things. Rename it with an underscore. If it's still a problem, duplicate it as a new material and hook it up. Then delete the old one and make sure to save your package.

Fogbrain

I created a copy and renamed it and unfortunately, still the same message

Warning, Failed to compile Material pkg_Project_Environment.Effects.Ocean_Shaderv2 for platform PC-D3D-SM3, Default Material will be used in game.
Warning, Failed to compile Material pkg_Project_Environment.Effects.Ocean_Shaderv2 for platform PC-OpenGL, Default Material will be used in game.

I haven't found any fixes still.

Hapuu

I used to get a similar error a with a much older version, but maybe the theory is the same (if not its a quick troubleshoot so might be worth a try)-
Open your map within udk and your packages and reassure that no package including default udk packages have */are unsaved. In addition go back to this material, unhook and rehook it back, save the material and package, and reattempt the cook. (It may not do anything given your version, but at least it shouldn't hurt anything.)

What version of UDK are you using for this?

Fogbrain

I think I've figured it out. It could be the fact that the ocean shader only renders in DX11, because it was working in editor and play in editor when it was set to DX11, but I just switched over and now the shader doesn't work.

Is there anyway around this? It must be packaging the game as DX9

EDIT: Also Hapuu it's the UDK 2014-02 version

Hapuu

I'd give this solution a try:
http://forums.epicgames.com/threads/980043-Cook-Dx11-build

Fogbrain

Still got the same message, and now once I load up the map from the menus once launched in UDK.exe it crashes.

EDIT: Okay well, I fixed the crashed by doing a full rebuild and compile, but the messages still appear.

sprunghunt

Fogbrain wrote: »

Still got the same message, and now once I load up the map from the menus once launched in UDK.exe it crashes.

EDIT: Okay well, I fixed the crashed by doing a full rebuild and compile, but the messages still appear.

You need to make a fallback shader for the shader that won't compile and then place it in the fallback slot of the shader.

more info:
http://forums.epicgames.com/threads/604309-quot-Automatic-Fallback-Failed!-Please-provide-a-Fallback-Material-quot-and-error-X-4506

Fogbrain

sprunghunt wrote: »

You need to make a fallback shader for the shader that won't compile and then place it in the fallback slot of the shader.

more info:
http://forums.epicgames.com/threads/604309-quot-Automatic-Fallback-Failed!-Please-provide-a-Fallback-Material-quot-and-error-X-4506

Yeah that's definitely gotta be it, on the DX9 renderer the shader possibly has too many instructions.

Cheers Sprunghunt, I'll give you guys feedback if it works. Fingers crossed!