Hoi! Does someone know if gameengines can (usually) handle materials where the alpha is, lets say, twice as big as the diffuse and normal map so: diffuse: 512^2 normal: 512^2 alpha: 1024^2 thx :)
if your alpha is a separate file and your engine allows separate alpha file (UE3 does iirc) then you're fine, but some engines only support alpha from the diffuse alpha channel, so it can be a case by case scenario
yup, totally engine dependent. The ones that let you do that normally require it to be the same aspect ratio. So if your diffuse is 512x512 your alpha shouldn't be 1024x2048, one will be scaled to fit the other (normally the alpha will scale to the diffuse) which can cause artifacts when things are mip'ed. If you're up…