The sun and shadows

This topic has 12 replies, 4 voices, and was last updated 6 years, 8 months ago by Yuri Kovelenov.

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2018-03-21 at 4:34 pm #3033

vincent
Customer

Trouble for make shadows, a object don’t have it, but behind him there is a objet who catch it, strange. I use simple sun, what is the good set-up ? May be it’s a problem with Blender only, I see nothing in Blender with Verge3d. Thank you for you help.

2018-03-22 at 7:32 am #3043

Mikhail Luzyanin
Staff

vincent wrote:

Trouble for make shadows, a object don’t have it, but behind him there is a objet who catch it, strange. I use simple sun, what is the good set-up ? May be it’s a problem with Blender only, I see nothing in Blender with Verge3d. Thank you for you help.

Can you attache an example with this two object? Also check is there any material on object that do not cast shadow, try to add it. If it will not help sen us the example.

Co-founder and lead graphics specialist at Soft8Soft.

2018-03-22 at 7:54 am #3044

vincent
Customer

Yes, there is a material and texture, a image, where do I see shade or no shade? the settings are few, Backface culling? what is it?

2018-03-22 at 8:53 am #3045

Mikhail Luzyanin
Staff

vincent wrote:

Yes, there is a material and texture, a image, where do I see shade or no shade? the settings are few, Backface culling? what is it?

All materials has cast shadow on by default, you can see it in the Shadow parameters in material preferences. Does this model has thikness?

Co-founder and lead graphics specialist at Soft8Soft.

2018-03-22 at 9:37 am #3046

vincent
Customer

Yes it does with a modifier.

2018-03-22 at 1:06 pm #3052

Mikhail Luzyanin
Staff

vincent wrote:

Yes it does with a modifier.

Have you set Bake Modifyiers in the scene settings?

Co-founder and lead graphics specialist at Soft8Soft.

2018-03-22 at 2:58 pm #3053

vincent
Customer

Yes I have !

2018-03-22 at 4:24 pm #3055

vincent
Customer

I was apply three modifiers Edge Split, Bevel, Solidify. nothing happens. What can I do, with the setting of the sun ?

2018-03-22 at 4:33 pm #3056

vincent
Customer

Look at my setting of the sun ?

2018-03-22 at 4:38 pm #3058

Mikhail Luzyanin
Staff

vincent wrote:

Look at my setting of the sun ?

It’s ok with the sun settings. Can you send us the file? It’s difficult to understand where the problem without the file.

Co-founder and lead graphics specialist at Soft8Soft.

2018-03-24 at 6:49 pm #3074

Yves Lécossois
Customer

I found that shadows cast by the sun seem to be limited by the x-y-z position of the sun in relation to objects. Maybe this is the problem Vincent faces.

For example, by default, objects located more than about 16 meters from the base of the sunlight have no drop shadows, as can be seen on my first screenshot, in the 3D view as on a web page.

If I move the sun on the other side on the X axis, then it’s the first cube that has no shadow (second screenshot).

The settings of the sun can improve that. For example, you can increase the size of the map. The shadows have a lower resolution (third screenshot) and you have to increase the resolution of the map. If a gap between the shadow and the object is visible we can also increase the “Far” value (maybe there is another setting ?) .

I don’t know if these limits are OpenGL limits or if there is a way, in the future, to have sun settings less restrictive, which would be a great improvement especially in case we need a scene spanning a large space.

2018-03-26 at 7:14 am #3093

vincent
Customer

hello everyone,
Thank you for your interest, I have solved with the thickness of an object, too fine objects do not take light. My scene is wide too.

2018-03-26 at 10:03 am #3098

Yuri Kovelenov
Staff

Hi Yves,
Thanks for explanations and examples!

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