#flipcode

Hello all ...here another update ..with some nice features :-)

Here some work while calibrating the exposure system...a "sunny16" situation

clear sunny sky -- 1/125 / 100ASA / f16 ...

New:

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-added photographic exposure system with shutter speed / ISO / f-stop

-added daylightsystem for physical sky.. just set time and location !

targetdirect still works :)

-added indigo geometry ,sphere and plane

-fixed specular absortion with unitscale

-added presets for indigo glass (specular)

-added max_num_consec_rejections to persistent variables :-)

-many fixes

-some reorganisation...

--and some i might have forgotten..:)

u3dreal ;)

here you go .. ;-)

NO FEEDBACK KILLS DEVELOPMENT -- :::

Awesomeness..

Can you explain a little how your photographic exposure system works?

Does it still use the Reinhard tone mapping?

Great work U3dreal. Testing now.

Jan

Ono-Sendai wrote:

Awesomeness..

Can you explain a little how your photographic exposure system works?

Does it still use the Reinhard tone mapping?

Hi Nick !..

Ok here is a short note

Exposure in photography is purely linear so this means double the shutter

speed (1/125 -> 1/250) will result in half of the time the film gets exposed.

So for the exposure system the linear tonemapping is just perfect...

The reinhard can be used afterwards to take care of the hightlights.. ;-)

u3dreal ;)

It's true that that doubling the shutter speed will result in halving the exposure time...

But camera film has a nonlinear response to light, which linear tone mapping won't match.

Ono-Sendai wrote:

It's true that that doubling the shutter speed will result in halving the exposure time...

But camera film has a nonlinear response to light, which linear tone mapping won't match.

Yeah thats true but so far i'm pretty happy with the result. As

a photographer i can tell it's quite close to my expiriences..

The only thing really missing are units for the emitters. :-)

And you have something to start from to get the right exposure..

u3dreal ;)

Thanx mate! :D ;)

take care

psor

all looks nice, but i have the problem with the error comes, when i want to render someting out of your exporter. Can you please send me your indigofolder or something like that? i dont know why it wont work.

My ICQ is: 174521009. I would be nice if someone can do this for me^^

Pak-X wrote:

all looks nice, but i have the problem with the error comes, when i want to render someting out of your exporter. Can you please send me your indigofolder or something like that? i dont know why it wont work.

My ICQ is: 174521009. I would be nice if someone can do this for me^^

What kind of error you get ???

u3dreal ;)

Ono-Sendai wrote:

But camera film has a nonlinear response to light, which linear tone mapping won't match.

I have a look at that maybe there is a way to compensate it .. ;-)

u3dreal ;-)

Ono-Sendai wrote:

But camera film has a nonlinear response to light, which linear tone mapping won't match.

Hi Nick ..

i knew i had it right in my mind but i wasn't sure ...

--> wiki is sure here ;-)..

Wiki says:

In the ISO linear scale, which corresponds to the older ASA scale, doubling the speed of a film (that is, halving the amount of light that is necessary to expose the film) implies doubling the numeric value that designates the film speed. In the ISO logarithmic scale, which corresponds to the older DIN scale, doubling the speed of a film implies adding 3° to the numeric value that designates the film speed. For example, a film rated ISO 200/24° is twice as sensitive as a film rated ISO 100/21°.

I use ISO linear scale so it is linear.. :-)

u3dreal ;)

how do you use meshsmooth to work with the exporter? When i use it, it works but it comes out tesselated.

UrMaker wrote:

how do you use meshsmooth to work with the exporter? When i use it, it works but it comes out tesselated.

can you post a pic ?? what version of max are you using ?

u3dreal ;)

i'm using max7, well i just did some tests and found out that meshsmooth has nothing to do with it, it's when i use a standard material with the specular level up that makes the reflections tesselated. the scene was made before when the last few exporter versions came out so i'll just change them to plastic material. thanks

UrMaker wrote:

i'm using max7, well i just did some tests and found out that meshsmooth has nothing to do with it, it's when i use a standard material with the specular level up that makes the reflections tesselated. the scene was made before when the last few exporter versions came out so i'll just change them to plastic material. thanks

Ok cool ... after all i think we should switch to Indigo Materials as

i will drop standard soon...Indigo Materials provide a far better control.

u3dreal ;)

well, it's been more than 3 weeks from the last time,

that i worked with indigo.

came back to see lots of new stuff...

but, i don't know what's wrong i just can't get your exporter to

work! it's probably my stupidity...

installed the max2indigo 0.51 & indigo5t.7.

whene i try to export some scene nothing happan....

any idea??

thanks in advance.

Ibalouka wrote:

well, it's been more than 3 weeks from the last time,

that i worked with indigo.

came back to see lots of new stuff...

but, i don't know what's wrong i just can't get your exporter to

work! it's probably my stupidity...

installed the max2indigo 0.51 & indigo5t.7.

whene i try to export some scene nothing happan....

any idea??

thanks in advance.

Hm.. nothing ?? try to read the readme ... it works quite well ....

make sure you copy all the content of exporter folder to you maxroot folder...

don't forget to state the indigodir in the m2i.ini.

Good luck ..

u3dreal ;)

eh.. i know it works, no doubt about it.

my m2i. is _ indigodir=c\indigo

for the rest, i think, all in place...

thanks a lot

What do you mean with nothing happened ???

does the exporter export ??

status ...

try to switch on and of run indigo in renderersettings ..

u3dreal ;-)

well, as i was thinking,

the the xml files were exported to another place,

like i said, 'my stupidity'...ha ha,

anyway, in the 0.51 there is no matpreview folder....

i had to copy it from the 0.499.

thanks for the help,

ilan