Horrible Shadows

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#1

Hello everyone,

for some reason my scene doesn’t render properly.
There are very weird shadows, at first I thought it was due to the way I set up the lights but then I deleted all the lights and started from scratch and it happened even with a single light.
I attach a screenshot for you guys, I wonder if it could be an option in blender or a problem with my Computer: I am using a 3 years old MacBook Pro with an integrated Iris Card.

Thanks in advance,

Matteo

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#2

This happens to me when I have multiple faces on the same spot. Usually because I’m not paying attention and have extruded one too many times. Have you tried removing doubles?

#3

Thanks for the reply.

I have tried to remove the doubles, there were a few actually, but nothing improved.
I attached a picture to show you the scene after hiding the Sun and the Hemi light.
Now there is just a single spot light over the Chess Board.
I wonder if I need to update the driver of my Graphic Card…

Matteo

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#4

And this is rendered with Cycles if it can be of any help.

Matteo

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#5

Hello Mateo.
For me it looks like a problem with your geometry.
Did you try to (in “edit-mode”):

  1. recalc the normals
  2. or select the vertices of each square of your chess-table, delete the faces&edges only (press x) and then refill them by pressing f (as I said for each square seperately)*

*) I think it would be faster to rebuild this with a grid
IMPORTANT: of course save your project first :wink:

Hope that helps.

Chris

#6

Hi Phrobion,

the normals where OK, in the end I decided to delete the old chessboard and create a new one from scratch and guess what? Now it works!
I wonder what it could have been 'tho …

Thank you all for your help!

Matteo

1 Like
#7

Hello Matteo.
If you are still wondering, I tried to reproduce you rendering.

Its not only double Vertices, it happens if you have double faces above (like @NixeKnox said).

In the Outliner, I see your chessboard was made out of a cube.
Did you just scale it to zero (in z-direction)?
This is what i get then and it looks quite like your rendering.
(I just got a few more subdivisions)

Its horrible cause you have to delete each face manually and refill it.
Sometimes a new build is faster (as in this case).

Nevermind & congrats

Chris

1 Like
#8

Yes it was made up with a cube, I remember something went wrong when following that lesson and I wondered why we were supposed to use a cube instead of a plane (might have got it wrong). Now I have mede it with a plan and it’s brilliant and you can move the scene around much faster in rendering mode than before!

Matteo

#9

Deleting faces would have been the next thing I’d have suggested, that’s what I do when removing doubles doesn’t work. Starting over again works too though. :smile: Glad you found a solution.

#10

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