Shader mixer displacement blicks P and N quesiton
I now studying tutorial,, then have some quesiton.
when I Import blicks from duz default shader,
there are already, bump and displacement blicks.
then I understand,, displacement effect actuall Displaced point (P), positon.
bump effect Displaced Normal (N) (facing direction, so that light make, dark and blight difference?)
but, when I check how blicks are connected,
both of P and N , in default Displacement first blick , connect to second blick (bump blick) < in put> .
then,, still more, P of default Displacement first blick connect to filnal blick which may determin about displacement.
but about bump blick,, the P never effect to final displacement surface blick ,, I think.
actually, bump (p) output not connect,, to final blick (input)
so that,, the connection,, P of Displacement blick to Bump blick has meaning?
then,, if I disconnect , P of Displacement blick to final brick ,
after that, connect P of Bump (output) to final blick (input) there is difference? like my picture2,,,
input P over write the value , so the Bump blick set the input value, and copy the value to final blick,,I think,,
it is something worng and diffrerence?
hope,, someone teach me ^^;