Hammer++/Bugs and limitations with unsupported games

====
Works with or version. However, there are some bugs and issues due to which you will not be able to work constantly.
===Lightmapped_4WayBlend is not loaded===
You will not be able to work with Xen levels and some Earthbound outdoor levels, since this shader is used for surfaces everywhere. 
File:4way1.jpg|Hammer
File:4way 222.jpg|Hammer++
File:4way_1.jpg|Hammer
File:4way 22.jpg|Hammer++
===No surface blend preview===
WorldVertexTransition was replaced by LightmappedGeneric in . This means that you cannot see blended surfaces in Hammer++, since this feature is not provided.
File:Blended1.jpg|Hammer
File:Blended2.jpg|Hammer++
===GRPortal is not loaded===
This shader is used for the nihilanth's portals.
File:nihiportal1.jpg|Hammer
File:nihiportal2.jpg|Hammer++
===Physics Tool doesn't work properly with new ragdoll entities===
prop_ragdoll_original and are ragdoll entities, Hammer++ doesn't know about this. 
File:BMSragdolls.jpg|prop_ragdoll_original and misc_dead_hev simulating as "general" objects, in while prop_ragdoll works fine.
===No Parallax Occlusion Mapping preview===
This game supports POM for some shaders. This effect doesn't displays in Hammer++.
File:BMSpom2.jpg|Hammer
File:BMSpom1.jpg|Hammer++
====
Mainly works with the version. Hammer++ will not provide features from and the engine (mainly UI elements and how it works with content). The convenience of its usage will depend on what you plan to do.
===Only supports the model format===
 supports all model formats from any game. Hammer++ for only supports the model format from , so you'll need to port models if they do not use this format.
===No Scale Override preview===
Static props support the Scale Override keyvalue (similar to ). You will not see changes in Hammer++.
File:ScaleO1.jpg|
File:ScaleO2.jpg|
===Custom folder is not supported===
 supports the custom folder. Hammer++ for doesn't.
===Doesn't read mounts.kv===
mounts.kv is a way for to mount content from other games without editing the gameinfo.txt. Hammer++ doesn't read this file.
===Escape sequences are not supported===
Only supports escape sequences.
====
Works fine with version. Some custom shaders may work incorrectly, and some custom features will not work as expected.
===SDK_Cable doesn't work properly===
Display skybox instead of a cable texture.
File:cablaSDk.jpg|An example.
===Spotlight textures don't apply to spotlight preview===
 supports customization of the beam and halo texture. Hammer++ always draws the standard textures.
File:spotLightMapbase.jpg|An example. Used obsolete icon for halo and electric texture for beam.
====
Hammer++ for L4D2 works fine on , except when compiling the map. After compiling the map and trying to join the map, an error will appear and display: STEAM validation rejected and after pressing ok, the menu will be frozen.
In , the same error happens but without the Steam rejection, only displaying multiple repeating errors (C_CL4DGameStats: failed to download stats from Steam, EResult 2) on console and unable to interact with the menu.
 
===Textures glitching on Displacements===
In , textures glitch on displacements when the camera view is far away.
File:Bug-L4d2 texture.png|
File:Comparison Bug-L4D2 texture.png|
=== Skybox texture glitch ===
This only happens when you have env_sun in the map.
When looking at the skybox texture with other textures (e.g. ), entities, etc. The skybox appears normal, when only looking at the skybox texture without looking anything in the map, the texture changes to a sprite texture, which is .
Also, while looking at the skybox with the sprite showing or looking somewhere in the map and having the Texture tool shown or the "Current texture" on the right side, when minimizing Hammer++ and then going back, the "Current texture" or the "Face Edit Sheet" will take a top left corner screenshot of the 3D view port and replace the image where the texture is supposed to be at.
===Graphics glitching with particles rendering enabled===
Certain particles will break viewports (both 2D and 3D) until Hammer++ is restarted.
File:Hpp l4d2 particle.jpg|Viewing decompiled c2m4_barns, near "stache whacker" minigame
Category:Hammer++