Hi! I have a chance to work in a really good video game studio. The problem is I don't know how to texture big buildings. They gave me this reference and order me to model this house. Textures must be in 2k and work presented in Unreal and it must be photorealistic. Here is the issue: How to texture this house to maintain high quality and high resolution and keep it optimized? Should I texture it in ONE texture sheet? Or split into few sheets? Or maybe trim texture? Should I separate the model in parts? For example 1.roof 2.walls 3.windows? I really need advice on this guys. How should I approach this?
Maintain a consistent texel density and pay attention to the scale of details
You might choose to build the fence, windows, beams etc. out of unique meshes but you'll still need to use trims and tileables to cover the rest of it.
Don't confuse trim sheets with the sunset overdrive method that's been popular lately. That's only a good idea in a very specific set of circumstances
Trim sheet or atlas texture, with tiling texture, supported by layered materials or decals is the way to go.
You can also pretty easily find video tutorials on youtube and elsewhere, just google "UE4 vertex blending" or similar