Andrias_Bartlett
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You can find the paths to the hero models from the scenarios here: 1) select the desired hero 2) go to Shared => ... => HeroCharacterAdventure/Arena => Model
There you can see the path to the model; in the model, you can find the paths to the materials, and from there – to the textures.
Added after 6 hours 6 minutes
And I have one more question: how to properly render .dds files so that the textures don't look "grainy"? It's as if the sharpness is turned up to 100 and anti-aliasing is turned off. Is there some special compression that needs to be applied?