rendertime prediction
Posted: Fri Apr 29, 2005 2:11 pm
my first wish here,..
what i want i a constantly updated rendertime prediction..
for that you would just have to reached SL 4 in order to get an equation out of the values. i guess rendertime-equation is quadratic.. so we need at least 3 conditions in order to get the equation..
f(SL) a SL^2 + b SL +c
SL = Samplinglevel
f(SL) = rendertime [min]
if we have for example:
f(1) = 8 (i know this is very inaccurate)
f(5) = 50
f(7) = 116
then we get the following:
a + b + c = 8
25a + 5b +c = 50
49a + 7b +c = 116
whereas c is as far as i remember 0.. haven“t checked that yet.. too tired so also forgive me if there are any mistakes on this.. im sick for over a week now
then we can build a system of equations out of these 3 equations.. and can solve that in order to get an equation that is correct for the current rendering..
so we can in round terms predict rendertimes for certain Samplinglevels and also vice-versa..
just an idea
what i want i a constantly updated rendertime prediction..
for that you would just have to reached SL 4 in order to get an equation out of the values. i guess rendertime-equation is quadratic.. so we need at least 3 conditions in order to get the equation..
f(SL) a SL^2 + b SL +c
SL = Samplinglevel
f(SL) = rendertime [min]
if we have for example:
f(1) = 8 (i know this is very inaccurate)
f(5) = 50
f(7) = 116
then we get the following:
a + b + c = 8
25a + 5b +c = 50
49a + 7b +c = 116
whereas c is as far as i remember 0.. haven“t checked that yet.. too tired so also forgive me if there are any mistakes on this.. im sick for over a week now

then we can build a system of equations out of these 3 equations.. and can solve that in order to get an equation that is correct for the current rendering..
so we can in round terms predict rendertimes for certain Samplinglevels and also vice-versa..
just an idea