Color Coding background for different climate conditions

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Hello,

I am working on a C++ application under Visual Studio 2003 using DirectX 8.1 that uses 3D graphics to displays various elements. For Eg: I have a beach ball on a sunny day. I am able to draw the ball using graphics, but I am interested in drawing the sunny day background using any available color code, or any other input I can have in order to execute this. At the moment, I have basic colored backgrounds implemented in my code, like I can get the basic colors from Black(0,0,0) to white(255,255,255). What would be the best way to go about this executing and rendering the climate background (like sunny day, dark night, cloudy day) through the code using DirectX 8.1? Hope someone can help here.

Posted 14-Mar-12 2:22am

Mobile.Instinct

Updated 15-Mar-12 4:41am

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Nelek 14-Mar-12 13:59pm

Can you show part of the code you have running and explain a bit better what do you mean?

Mobile.Instinct 15-Mar-12 10:41am

Yes, I have updated the question. Do you have any suggestions?

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barneyman · Answer 1 · 2012-03-15T15:25:00

I can't help you with 8.1, but with 9+ the process is this

Load your bitmap into a texture

Get the size of the backplane using GetBackBuffer

Create a square textured backplane (vertex format = D3DFVF_XYZRHW | D3DFVF_TEX1), using D3DXVECTOR4 with w set to 1.0

In your render function, the first thing you draw is your backplane

D3DRS_ZENABLE OFF
Draw backplane
D3DRS_ZENABLE ON

The only caveat is you have to catch a window resize, and regenerate your backplane texture