What do you think?

[omar]

Hi there

I've been doing some research on what the color value of ( white flat paint ) under diffused outdoor light

What I did is I took so many picture in cloudy days and when the son goes down but before it's get dark

And what I came up with was this number RGB 200 200 200

Now the goal here is to determine the Ideal sun light it also will help me in setting up my material

What do you think?

[STRAT]

i think you looking way too deeply into things here. forgive me here, but you sound like either a frustrated nube, or a really keen eager nube willing to learn.

 

there is no 'ideal' sun light.

 

if ur experienced then go with ur feelings. go with what fits nice, what renders pleasingly. an experianced artist will know these things.

 

if ur a nube then dont try to find the perfect theoretical sun light value because it doesn't exist. imo it's a poor way to learn. just experiment and test render after test render with different light settings until you get the results ur after.

 

i think all this research ur doing is wasting ur own time

[Ernest Burden III]

there is no 'ideal' sun light

 

I couldn't agree more. The sun's color changes as fast as the atmosphere it shines through. As a matter of fact, it is playing with the color that makes a rendering interesting.

 

There is a basic term for RGB 200 200 200 -- light gray. Gray is not a color, it is a shade.

 

While nature is, in fact, a stew of precise values, they are never all observable from within this universe (Heisenberg's Uncertainty Principle) so finding 'ideals' is pointless.

 

Better to search for a great pint (had one last night) and watch your 'ideal' sunlight color go from yellow to orange to red to purple to gone.

[4DM]

 

Better to search for a great pint (had one last night) and watch your 'ideal' sunlight color go from yellow to orange to red to purple to gone.

 

Ernest,

like Strat, your advice is mostly spot-on, but I wouldn't recommend our friend in Saudi to go searching for a great pint ! Apart from possibly finding it offensive, he would get into a great deal of trouble if he did find one.

 

But seriously, Omar, you could try rendering a variety of sunlight colours, from warm to cool, and chose which you prefer.

A lot of ArchViz guys could do with a more artistic, and less technical approach generally, and although actual 3D modelling does not offer a great deal of freedom of expression, lighting is where you can get quite creative if you want to.

 

Cheers,

 

D.

[Ernest Burden III]

I wouldn't recommend our friend in Saudi to go searching for a great pint ! Apart from possibly finding it offensive, he would get into a great deal of trouble if he did find one.

 

Ah, KSA means Kingdom of Saudi Arabia. I didn't realize that. No offense was meant, and juice can be bought in pints, probably in a 'dry' country especially. The point was that sunlight color changes constantly and the time of day that many people enjoy most visually--sunset--is when it becomes the most pronounced.

 

Painters know about using color to focus the attention, change the mood, of a picture. We CG renderers should not be afraid to use any artistic tool to better our work.

[STRAT]

EBIII - they sell pints in the USA? i thought it was all bottled stuff.

 

4DM - r u a real ale fan or a lager man? south wales has some cracking brews

[Crazy Homeless Guy]

EBIII - they sell pints in the USA? i thought it was all bottled stuff.

....as far as i am concerened, this is the preferred way in the US, but the masses do like their bottles. ...and lets not forget the hideous plastic bottle, then the ever classy cans.

[Ernest Burden III]

EBIII - they sell pints in the USA?

south wales has some cracking brews

 

Sure, most brew served in the US is bottled (and I usually drink Bass, which traveled) but there is still a good supply of tap brew, especially in NYC. But not in Saudi Arabia. No alcohol by cultural tradition or actual law? At least the roads would be safer.

 

I thought only toast could be cracking.

[kid]

omar,

 

your time would be better spent reading up on colour theory in painting, learning about the relationships between the temperatures (warm or cool, not precise Kelvin values ) of light and shadow.

 

 

 

ernest,

 

Heisenberg's Uncertainty Principle ha ha...i've just been reading about this. i'm reading a load of theoretical physics, superstring theory mostly, for an architectural competition.

 

reading this post was like when one hears a word, and say's "what an interesting word, never heard that before" then day after day one hears that word again and again....

[Ernest Burden III]

i'm reading a load of theoretical physics, superstring theory mostly, for an architectural competition.....

 

I think an explanation is in order, Mr. Eminem.

 

The great thing about the Uncertainty Principle is it is useful to tip-toe around the quantum leap, which makes no sense at all. For those of you NOT working on architectural competitions, a quantum leap is when an electron jumps from one atomic orbit to another. The problem is it does this without crossing the space in-between them, which we all know to be impossible. When the electron teleports up an orbit it absorbs energy, and when it jumps down it poops out a photon. A photon is a base unit of light energy.

 

Which brings us back to the question of what color that light may be.

[Fran]

Ahh, but who is to say that light is not the absence of dark? (Old spoof from a NASA rag).

[omar]

Sorry for being late to replay

But I'm afraid I disagree with STRAT about this business being art

It's just another profession like any other

But the point here is that I'm starting a new service for developers

This service is about putting up a catalog of the local materials here in my city like stone bricks and Marble granite and of course paint textures in a way the client chose the finishes for his real state

Now the service is called WYSIWYG exterior design service

Witch relay requires accurate lighting situation that's it

 

Strat I'm not a nub I v been doing painting for 18 years and doing CG for the last 6 years

[4DM]

 

4DM - r u a real ale fan or a lager man? south wales has some cracking brews

 

Strat, I'm both, and neither. A nice big glass or 3 of a good Rioja, taken while lying prone on the sofa at the end of another long a day at the computer is my tipple.

Beer, or lager, on the other hand is just great for when Mrs 4DM microwaves up a curry.

I'm not a huge drinker, but if you've ever worked in a dry country, it's amazing how you miss it.

What is your recommended Cardiff pint, then?

 

Omar, seems like a difference of approach then - but your lighting will still change depending on the time of day, amount of dust in the air, weather conditions (though admittedly more consistent in your part of the world than mine), surrounding structures, etc, so it will be hard to offer a definitive solution.

Good luck in your quest - there will be people here who will want to share in the results of your research, but I have to say, I appreciate the creative freedom that the title "Artist's Impression" allows my work ; )

 

Cheers,

 

D.

[kid]

Fran,

 

that's a bit like vanilla, who's to say it's not the absence of flavour

[STRAT]

omar - i didnt call this business just art. sorry m8, didnt mean to call you a nube if you aren't, it's just your ideas of providing lighting details the way you describe IS nubish. it cant be done.

 

I wish you well with your new venture, specially providing textures and so on, that sounds a fantastic idea, but local lighting details? to specific rgb values too? sorry, but thats a sign of inexperience. experiance tells you to go with your feelings and intuitions. every time of day, every job, every situation will warrent different light. it's like the chaos theory.

and again, why RGB when HDRI makes that irrelevant? i think providing this limited innaccurate info to ppl is giving them a poor bases to do their work off.

and i dont think it would sell.

 

again, im not having a go here, i just trying to save you time where your skills would be better spent, time wise, doing other work for your new venture.

 

4DM - the nicerest local Cardiff pint is Brains SA. i also love i pint of hoegaarden.

[Ernest Burden III]

Mrs 4DM microwaves up a curry.

 

I love curry. I'd probably eat a curried shoe (probably have). But microwave?

[4DM]

Yeah, well, pressures of life, and all that, mean there's never time to spend the hours that are required to cook a good curry from scratch.

We have decent take-aways here, and I suppose I should have mentioned those too. This is making me hungry.

Cheers,

D.

[omar]

Hi strat

Thanks for sharing your thought anyway

Ok as far as my research goes after taking many picture of houses painted in white

In different time of day I found the best combination of sun light and skylight is the time

When the sun is about to go down before dusk this where you should simulate light

The resin is because it's not completely diffused nor there's a harsh shadow

You only have to do this once and setup your rendering to simulate this condition

 

As far as my wysiwyg is concern it's seem to be working

I did this study for developer and he likes it and now he wants me

To do his next project

[IC]

Quantum theory mixed with beer!

This thread sounds more like night out in a Student Union than a CGA discussion!

Very interesting, actually.

 

Have you heard Stephen Hawking has changed his mind on his own Black Hole theory?(Sounds like a joke but its not!)

Probably just so he can sell another 10 million books.

[Ernest Burden III]

Have you heard Stephen Hawking has changed his mind on his own Black Hole theory?

 

As if he has only one theory. Don't look it as a change of mind but an evolution of concepts. What, exactly, are you refering to?

 

Black holes are very interesting beasts, and since they cross the event horizon of what we think of as 'possible' and yet have been demonstrated to exist much as Einstein predicted...

[IC]

Hope I picked this up right...

The theory in question is the main one he came up with 30 years ago that black holes destroy everything they 'suck in'.

He's now saying they allow some information to escape.

This apparently solves the information paradox his own theory created.

 

The details will be revealed at a conference in Ireland next week and they're said to be difficult to understand even for his peers!

[Ernest Burden III]

black holes...He's now saying they allow some information to escape. This apparently solves the information paradox his own theory created.

 

Oh, that probably refers to a set of paired particles, I forget what they are called, that seem to be linked with some sort of 'knowledge' of what the other is doing (spin info) over a seperation. The problem is the 'information' is supposed to be instant, which would seem to be impossible given the seperation. Like the quantum leap, instant crossing of a gap without a passage of space or time. That's quite a hall pass. Anyway, the problem was that a black hole can swallow ONE of the paired particles beyond the event horizon, making it impossible to 'communicate' with its mate.

 

Or does it? Do tell, Stephen!

[IC]

Ernest,

I must show my wife this thread.

She thinks I'm the King of Trivia (not that Physics is trivial-it's just I know what String Theory is but I couldn't tell you how much is in my Bank Account.) So she'd be impressed at your knowledge!

It's the things that have no bearing on my job (or my life in general) that I find most fascinating.

Maybe that's why she calls me a dreamer!

[jucaro]

Hi strat

Thanks for sharing your thought anyway

Ok as far as my research goes after taking many picture of houses painted in white

In different time of day I found the best combination of sun light and skylight is the time

When the sun is about to go down before dusk this where you should simulate light

The resin is because it's not completely diffused nor there's a harsh shadow

You only have to do this once and setup your rendering to simulate this condition

 

As far as my wysiwyg is concern it's seem to be working

I did this study for developer and he likes it and now he wants me

To do his next project

Sounds like basic outdoor photography, wherein the ideal time to shoot and take photographs is 2 hours after sunrise and/or 2 hours before sunset.