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Newcomers DBPro Corner / Stars behind Spinning Earth

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jerryd
11
Years of Service
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Joined: 20th Feb 2013
Location:
Posted: 16th Mar 2013 02:39
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DarkBasic forum,

I have the famous "spinning earth" program working and now
I want to add a background .bmp file. As you can see in
the code all I added are the load image and a paste image
commands. All I can get on the screen is the background
unless I move the window, then the spinning earth shows
up. Must be some trick to this.


Sync on
Sync Rate 0

Color Backdrop rgb(0,0,0)
Make Object Sphere 1, 100, 40, 40

Load Image "earthmap1k-jpg.bmp", 1
Load Image "stars-png.bmp", 2
Texture Object 1, 1

Set Ambient Light 100
Color Ambient Light rgb(255,255,255)

Position Camera 0, 20, -300

Do
Paste Image 2, 0, 0
Yrotate Object 1, object angle y(1) + 0.02
Sync
Loop


jerryd
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pcRaider
17
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Joined: 30th May 2007
Location:
Posted: 16th Mar 2013 03:22
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use "TEXTURE BACKDROP" command

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jerryd
11
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Joined: 20th Feb 2013
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Posted: 16th Mar 2013 03:36
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pcRaider,

Thanks that worked although the help file says this command
is obsolete.

jerryd
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Virtual Nomad
Moderator
18
Years of Service
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Joined: 14th Dec 2005
Location: SF Bay Area, USA
Posted: 16th Mar 2013 04:09 Edited at: 16th Mar 2013 04:09
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Quote: "this command is obsolete."

it was re-instituted under 7.4 tho the help file wasn't updated when it was.

Virtual Nomad @ California, USA . DBPro V7.7 . Matrix1Utils 05.27.12
AMD Phenom™ X4 9750 Quad-Core @ 2.4 GHz . 8 GB PC2-6400 RAM
ATI Radeon HD 3650 @ 512 MB . Vista Home Premium 64 Bit
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pcRaider
17
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Joined: 30th May 2007
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Posted: 16th Mar 2013 04:51
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ok, this is cubu in earth.

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jerryd
11
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Posted: 18th Mar 2013 03:35
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pcRaider,

Thanks that code snippet worked and told me a lot.

jerryd
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pcRaider
17
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Joined: 30th May 2007
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Posted: 18th Mar 2013 05:42
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Here is a tutorial of a skybox. Attach


The media of a skybox is included in DarkGDK,
You can download DarkGDK free,
It is good that you obtain it.

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Inflictive
15
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Joined: 16th Jun 2009
Location: Altis
Posted: 1st May 2013 07:28
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Make a bigger sphere and texture it with the stars texture, also use

set object cull

to ensure that it draws even though youre inside of it. That way the stars move when the camera moves, its called a skybox/sphere

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