VTF 7.5 support

[klaxons1]

It can be useful for recreations of games like Portal 2, CS:GO, Black Mesa, Left4Dead 2 and Alien Swarm. Reference: https://github.com/quiverteam/Engine/pull/65/commits/0133ca430907dfd2d4d77e684b256fa7dc126c3f

[klaxons1]

You should reopen the issue. @nillerusr

[LegendaryGuard]

Does this VTF commit support for older games (HLS, HL2, CSS, TF2)?
Looking as the version history says: https://developer.valvesoftware.com/wiki/Valve_Texture_Format#Version_history
Just asking, I still haven't tested the build and idk if I'll have time to test this kind stuff in a game.

[klaxons1]

@LegendaryGuard I converted smg texture to vtf 7.5. The engine should support this version of vtf for newer source games.

[LegendaryGuard]

@LegendaryGuard I converted smg texture to vtf 7.5. The engine should support this version of vtf for newer source games.

Ok, so means if we use the engine and put old asset contents from an old version of HL2, for example, would work if there are older versions of VTF?

[klaxons1]

@LegendaryGuard It will work by default.

[LegendaryGuard]

@davie504 Thanks for your reply.

We should try. I understand it isn't just a question of code, but also that the update will have to be experimented in terms of textures. I wonder if the artists and modellers are going to complain if the result is the same as what the wiki says:
v7.5

• Incompatible with Half-Life 2, Counter-Strike: Source and Team Fortress 2.

I hope it doesn't influence. 🙏

[klaxons1]

@LegendaryGuard you misunderstood something. Vtf 7.5 doesn't compatible with ORIGINAL engine of tf2, css and hl2. And this commit provide us support of it to this engine.

[LegendaryGuard]

Ahh, ok, what a slight relief! 👍 I thought it could give us texture issues. Ok, I just understand, thanks.

[klaxons1]

Result of https://github.com/nillerusr/source-engine/commit/eb78802b5de8870a9c4a82e280fe024bb072db6c :