VraySun Direct Color mode

[francomanko]

Hi, when using the direct color mode with a vraysun, i understand that the intensity is no longer connected to the position of the sun, however, it seems that to keep the same look (ignoring color), you have to break the connection between the sun and sky, using lightmix because just increasing the sun multiplier overexposes everything? Is this correct?

First image is with the default setting. Second with direct color mode.



Im guessing its something with the connection to the sky, as the only way i can get a similar intensity without the image being overexposed is by using the lightmix. The image below is using lightmix with the sun set to an intensity of 60, but environment kept at a value of 1. If dont use lightmix and up the sun intensity to 60, the image is just completely over exposed.



This is latest official release of vray with a new scene, flat plane, a cube and sun system. (SCENE ATTACHED)

[vladimir_krastev]

Hi, thanks for posting. In "direct" color mode the intensity of the light does not depend on the sun\s position. (docs page about this)
You can controll the VRaySun and VRaySky intensity separately by dragging your VRaySky from the environment slot into a material editor.

[francomanko]

Thanks for the reply, im not sure if my post explained what i was meaning well enough, but the doc only says 'controlled through the intensity multiplier.' and as my post mentioned it doesnt seem to work like that, to achieve similar results, unless using the lightmix or as you said controlling the sky and sun separately (which the doc doesnt mention) . But thats fine, i really just wanted to check i wasnt doing something wrong. Thanks again

[vladimir_krastev]

There is indeed something unclear about this docs explanation especially with the light intensity part. We will check it more carefully and improve it if possible..
As for the result you want to achieve, there is no other way I can think of than disconnecting the Sun and Sky or using LightMix.

[francomanko]

all good, thanks for reply, much appreciated.

[vladimir_krastev]

Hi, I did a bit more digging. Technically there is no error in the docs.

or as you said controlling the sky and sun separately (which the doc doesnt mention)

It does not but the info is under "Sun Parameters" paragraph.

By observing the scene from a perspective point of view one could get wrong conclusions. Here in this example I placed the Sun orthogonally and turned off the Sky:

Filter Color:

Direct:

Override


So the part with the light intensity is actually correct but with disabled Sky. I will see if we could at least get a note about this below the paragraph.