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Invisible Objects!

 
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LionHeart
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Joined: 05 Oct 2007
Posts: 11

PostPosted: Fri Oct 05, 2007 9:10 am    Post subject: Invisible Objects! Reply with quote

Greetings everyone Very Happy

How come some corners and sides are invisible after creating an object?
Somethimes they are insvisible from the outside and visible from inside, and reverse.

Is there a way to fix this?

Thanks!


Last edited by LionHeart on Sat Oct 06, 2007 12:49 am; edited 2 times in total
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Jeroen
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Joined: 07 Aug 2004
Posts: 5332
Location: The Netherlands

PostPosted: Fri Oct 05, 2007 9:36 am    Post subject: Reply with quote

Hi there LionHeart, and welcome to these forums! Smile

I'm not sure I understand what you're saying but perhaps you're talking about Culling here. In the statusbar, you can see the word Cull. Doubleclick on that word (or press F5, or go to the Options screen and deselect Culling) to enable or disable culling.

With culling enabled, DeleD will only render what is visible. A polygon only has one visible side. When culling is enabled, and the camera is looking at the backside of a polygon (for example, when you move the camera inside a cube, you're looking at the backsides of the polygons of that cube), DeleD won't render those polygons. If culling is disabled, DeleD will always render polygons, even if the camera is looking at the backside of those polygons.
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LionHeart
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Joined: 05 Oct 2007
Posts: 11

PostPosted: Fri Oct 05, 2007 9:51 am    Post subject: Reply with quote

Jeroen wrote:
Hi there LionHeart, and welcome to these forums! Smile

I'm not sure I understand what you're saying but perhaps you're talking about Culling here. In the statusbar, you can see the word Cull. Doubleclick on that word (or press F5, or go to the Options screen and deselect Culling) to enable or disable culling.

With culling enabled, DeleD will only render what is visible. A polygon only has one visible side. When culling is enabled, and the camera is looking at the backside of a polygon (for example, when you move the camera inside a cube, you're looking at the backsides of the polygons of that cube), DeleD won't render those polygons. If culling is disabled, DeleD will always render polygons, even if the camera is looking at the backside of those polygons.

Thank you for a such quick replay Very Happy

I disabled culling and it works now exept for that the sides are now in black shadowish color while the inside has texture.

You got a quicky for me again? Very Happy Probably very easy.
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Jeroen
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Joined: 07 Aug 2004
Posts: 5332
Location: The Netherlands

PostPosted: Fri Oct 05, 2007 10:13 am    Post subject: Reply with quote

That's because we use OpenGL lighting in the 3D views. The backsides of polygons do not receive light and are thus rendered black.

Do note that all good 3D engines have some form of culling implemented because it can really speed up the rendering process. Therefor it is usually best to leave culling enabled in DeleD too because it most resembles the way things are rendered inside an engine too.
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LionHeart
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Joined: 05 Oct 2007
Posts: 11

PostPosted: Fri Oct 05, 2007 10:59 am    Post subject: Reply with quote

Jeroen wrote:
That's because we use OpenGL lighting in the 3D views. The backsides of polygons do not receive light and are thus rendered black.

Do note that all good 3D engines have some form of culling implemented because it can really speed up the rendering process. Therefor it is usually best to leave culling enabled in DeleD too because it most resembles the way things are rendered inside an engine too.

Aha i see. So there is no way to fix this i suppose? Will it still be black when i have exported the model to lets say open it in Torque?
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Jeroen
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PostPosted: Fri Oct 05, 2007 11:04 am    Post subject: Reply with quote

LionHeart wrote:

Aha i see. So there is no way to fix this i suppose? Will it still be black when i have exported the model to lets say open it in Torque?


It is not an error, it is just the way things work with culling. Smile All will be fine when you export your worlds and render them in Torque because Torque will also perform culling.

Tip: if you want to walk inside a cube, use the Hollow command.
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LionHeart
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Joined: 05 Oct 2007
Posts: 11

PostPosted: Fri Oct 05, 2007 11:16 am    Post subject: Reply with quote

Jeroen wrote:
LionHeart wrote:

Aha i see. So there is no way to fix this i suppose? Will it still be black when i have exported the model to lets say open it in Torque?


It is not an error, it is just the way things work with culling. Smile All will be fine when you export your worlds and render them in Torque because Torque will also perform culling.

Tip: if you want to walk inside a cube, use the Hollow command.

Super Very Happy Thank you for your help.
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