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7th December 2010, 07:25 PM | #1 |
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Background image scaling
Hello!
I am a new AC3D user but I have done many years terrains, textures and aircraft skins to the Aces High flight simulator. Now it's time to learn modelling. I have used one week AC3D and I like it because it is easy to learn. I have even created my first town building objects to that game. I have problems with scaling objects to right size, because I don't find a way how I can set up the background image (for. ex. 60 x 40 meters large town building's front side plan) to the right metric scale. Is it depending on texture's pixels? If I set from "Settings" the Draw Grid Major for ex. to 10, are the grid major lines then between 10 meters or 10 centimeters or how? |
8th December 2010, 02:50 PM | #2 | |
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Re: Background image scaling
No, you need to scale the image after you import it.
The best way to do this is... 1) Know the metric size of your object as depicted in your background images. 2) Create a "bounding box" to those dimensions. In the case of a building, set it up so that the bottom of the box rests on the X axis 0 line... or, if your model will have a "underground foundation" allow for that. 3) Make the bounding box transparent, or set the viewports to wireframe view, using Main Menu Orth > Wireframe. This is so you can see your viewport graphic without the bounding box blocking the view. 3) Import your graphic into the "front" viewport. Front viewport menu: Orth > Set background image... (navigate to the image). 4) Once the image appears in the front viewport, click in empty space within the viewport to make sure the bounding box is DEselected. Then, quoting from the AC3D manual: Quote:
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Flight Sim Project Contributor My Gaming Rig: i5 2500K Quad-Core CPU at 3.3GHz MSI P67A-C43 mobo 4GB of PC12800 DDR3 memory Windows 7 1GB Galaxy GeForce GTX550 Ti video card GeForce 270.61 drivers (4/2011) Cougar joystick/throttle combo CH Pedals Last edited by Stiglr; 8th December 2010 at 02:52 PM. |
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8th December 2010, 06:45 PM | #3 |
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Re: Background image scaling
Thank you Stiglr for clear answers, that helps me much!
EDIT: Ok, Background image settings (scaling and moving) are working as you said. But am I scaling that Bounding Box with the "Size To" XYZ tool and what is the scale there? I mean if I set X to 60, is that 60 meters in the real world? Last edited by Kanttori; 8th December 2010 at 07:20 PM. |
8th December 2010, 07:08 PM | #4 |
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Re: Background image scaling
Well, units can be whatever you want them to be...
but, if you're exporting the objects into some other software, for example a game system, then in my experience, that game system will be assuming 1 unit = 1 meter. But, it could be feet, or inches, or some other measure. Check with your target export system. If it's only for use within AC3D, and your object doesn't have to interact with any other objects made independently, then it doesn't matter.
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Flight Sim Project Contributor My Gaming Rig: i5 2500K Quad-Core CPU at 3.3GHz MSI P67A-C43 mobo 4GB of PC12800 DDR3 memory Windows 7 1GB Galaxy GeForce GTX550 Ti video card GeForce 270.61 drivers (4/2011) Cougar joystick/throttle combo CH Pedals |
8th December 2010, 07:31 PM | #5 |
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Re: Background image scaling
I tried my ACD3 building object in the Aces High Object Editor and I noticed that it is using feet-scaling, because my house was about three times too big. I only need to scale all the new game objects to feets and everythnig is ok.
Thank you once more time, now it's clear and I can continue working! |
8th December 2010, 11:10 PM | #6 |
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Re: Background image scaling
Ugh, Aces High.... no, they'd never use meters as a measurement, because it's not an American measurement. They won't even use metrics in the European aircraft that actually did have metric gauges.
They're such arrogant cultural boors.... and there's plenty of bias in their game, too. Shame it's so popular.
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Flight Sim Project Contributor My Gaming Rig: i5 2500K Quad-Core CPU at 3.3GHz MSI P67A-C43 mobo 4GB of PC12800 DDR3 memory Windows 7 1GB Galaxy GeForce GTX550 Ti video card GeForce 270.61 drivers (4/2011) Cougar joystick/throttle combo CH Pedals |
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