Hi,Every Master!How are you!
Today, I encounter a problem on background.
the problem like this:
1. I did not set any background in the scene,and after setting the materials,I rendered the scene, get such result:
TestSceneLightNoBackground2.jpg [ 94.17 KiB | Viewed 1762 times ]
Upper is the scene that I didnot change any items in Sun and Sky.just choose the Sun and Sky,Use sketchup's sun system.
2. I feel I should add a background to make the scene much better,so,I chose a background picture ,just like this one:
Background.jpg [ 41 KiB | Viewed 1762 times ]
Wa, this picture gets a very good color ,so take it as background,the scene must be very good.
So, I chose it as the environment map of the scene.
But ,after the rendering,I get such result:
TestSceneLightHasBackground1.jpg [ 64.55 KiB | Viewed 1762 times ]
3. I found sun and sky can set the sun's position,so ,I set a position for the sun in the scene, and I get such result:
TestSceneLightNoBackground1.jpg [ 87.02 KiB | Viewed 1762 times ]
Compare upper three Scene rendered by indigo, I get some problem:
1. in the scene that has no background ,I get a very good indoor effect,and the light way is very accurate,but without background,I always feel losing something.
2.in the scene that has a background,I found the shadows were gone,No shadows of the pillars on the ground. And the background get a very light vision,the color does not meet the original picture. and the position does not meet my requirement. the leftup corner must be blue sky,but the scene shown a sky with cloud.
3.in the scene that changed the sun's position,no background and the light just like at twilight,show us a orange scene.
What is the problem exist? How can I control the background and sun light accurately.
the background how can I set its position in the scene and how can I get its original good color ?
And the important Point, How can I set the background without losing the shadows of those stuff? just get a right sunlight way with a background?
Please answer me ,every Masters! thanks a lot firstly!