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File: 55 KB, 900x940, 200-2006671_pepe-the-frog-question.png [View same] [iqdb] [saucenao] [google]
4960415 No.4960415 [Reply] [Original]

What do people mean by warm lights/cool shadows or cool lights/warm shadows?

>> No.4960416

STUPID QUESTIONS THREAD

>> No.4960417
File: 18 KB, 739x568, 1544131171141.png [View same] [iqdb] [saucenao] [google]
4960417

>>4960415
further more, imagine if I had a box, and on one side the box is in shadow, and the other side has a warm light on it. Following the logic above it would have a warm light side and cool shadow side. But what if I took the box and covered the side in shadows with a hot warm orange/red paint, and covered the side in light with a cool blue.
I then put the box back in the same position. Would the light side be "Warm" and the shadow side be "cool" despite the new local colors

>> No.4960424
File: 64 KB, 655x527, I+always+imagine+the+guy+asking+the+question+like+an+_c3afbc6a0f86d94215ae44a029aba04c.jpg [View same] [iqdb] [saucenao] [google]
4960424

>>4960417
but also titanium white in oil painting cools off colors and a light cadmium yellow warms colors. I've also seen people recommend that you paint your lights opaque and your shadows transparent.

Following that logic, how do I paint a landscape that is cast in a warm light? I want to make my lights opaque with titatnium white (a very opaque paint) but that would cool off my whites. While almost all cadmium yellows are pretty transparent. So how do I warm my light side while making the paint opaque?

>> No.4960425

>>4960424
*but that would cool off my *lights

>> No.4960441

>>4960417
Assuming warm = orange, cool = blue,
The light side of the box won’t appear like the colour it is because
the warm light will change the colour making it appear grey brownish
with the above assumptions.

The colour of shadow side will appear very grey orange with above assumptions
because it’s not receiving much light to show its colour

The light side will still be relatively warmer

>> No.4960481

>>4960415
warm lights burn your hands when you touch them, cool lights are freeze rays

>> No.4960485

>>4960424
just a very small amount titanium white will increase opacity a lot. Also it tends to only be a little on the cool side. There is also yellow ochre which is pretty opaque. Use thicker paint in the lights as well.

>> No.4961962
File: 255 KB, 803x542, Capture4.png [View same] [iqdb] [saucenao] [google]
4961962

>>4960441
are you sure? the way I visualize it would that the warm light would neutralize the light side a little bit (with the cool/blue local color, so it would be a gray blue) the warm light would then
bounce off the environment and then saturate the shadow side (with the warm local color) making it even warmer. So you'd end up with a gray blue and a desturated orange/yellow shadow side. So the final color would be cool light side, warm shadow side which goes against the logic of warm light mean warm light cool shadows.
honestly the whole warm cool makes no fucking sense to me. Everything I read about warm cool makes no sense to me

>> No.4961964

>>4961962
pic not related btw

>> No.4961967

>>4960415
Warm and cool is just a stupid way of saying 'proximity to red or blue'.
The 'warm light, cool shadow' thing is just a design shorthand and isn't how light actually works.

>> No.4962354
File: 73 KB, 640x480, 4906760165_daa89641b9_z[1].jpg [View same] [iqdb] [saucenao] [google]
4962354

>>4961962
if it gets bounced warm light, it could possibly be warmer, yes.

You can see this in pic related. The shadow side is cool except
at the neck where it is receiving bounced light. In fact, it is warmer
because the light side is so bright it's closer to white and not being
able to display much of it colour.

>> No.4963440

>>4961967
a design shorthand for what?

>> No.4963639

>>4962354
so the whole idea of warm/cool cool/warm is just a general rule that is sometimes not true i guess??

>> No.4966437

>>4963440
Shorthand for how light works in some common scenarios, while also using a balance of colors in a design sense.
If you use the warm light/cool shadow, it will generally look nice and be believeable enough, but you need to keep in mind that that isn't how light actually works in all scenarios.

>> No.4966450

>>4963639
More like light and shadows only work like that in the specific scenario where there's a low frequency direct light and a high frequency ambient/bounced light.
In outdoor scenes during a sunny day, this works because the sunlight is yellowish and the sky is a big source of cyan-blue light. In indoor scenes next to a window, during a clear day, it can also work like that, but the shadow color is just plain not determined by the color of the direct light.

>> No.4966522

You would have a better understanding if you actually googled your question but you just cant help frogposting like a faggot, huh?

>> No.4967444
File: 132 KB, 597x418, 1542148033593.png [View same] [iqdb] [saucenao] [google]
4967444

>>4966522