How do I generate random nfts from a set amount of different characteristics? Like bored bananas, wicked craniums

[Angel]

How do I generate random nfts from a set amount of different characteristics? Like bored bananas, wicked craniums...

Do these projects only generate all of the 1000s of images at first mint? Or are they already created and stored somewhere? Where do you store them? On the blockchain or in some sort of file storage server. Do they actually create the image or is it stored as separate elements that only puts it all together when someone calls a function to see that image

I think these projects are created using erc721 contracts

[frangio]

Generally all of the images are generated beforehand and later distributed. It is a challenge how to distribute them randomly in a way that is not easy to game. More discussion here:

Are NFT projects doing starting index randomization and provenance wrong or is it just me?

Hi, There is a pattern in many PFP projects where the tokenURI does something like: function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } Where the baseURI is some IPFS directory. This is the standard implementation from Ope…