Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: naturalstate on 2019-02-22, 00:16:33
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Hi,
I'm trying to render these construction orthographic isometrics and was needing a little help. I'm using Corona orthographic camera.
1) Does the rendering look correct in terms of being a true 45 degree isometric?
2) I thought the vertical walls seemed a bit squashed. When I turn on the camera correction "automatic vertical tilt" it looks more correct. Although it previews correctly in the window, it doesn't render like that. Why doesn't it render with the til when using orthographic?
https://imgur.com/a/fCkLu85
Any help please?
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I don't think camereracorrect modifier works with a camera set to orthographic. Is it a standard, physical or corona camera you're using?
A standard camera set to orthographic should work as intended.
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Automatic vertical tilt is making 3 point perspective to 2 point perspective, how it supposed to work on orthographic camera, that has no perspective at all?
2) I thought the vertical walls seemed a bit squashed.
It's either just optical illusion, or you have applied scaling to camera object itself, or maybe added some modifiers like skew or taper. All 3ds max cameras support true orthographic projection. Corona camera is no exeption.
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In viewport camera may looks different then rendering. Your rendering looks fine, in viewport you can see what axes is not parallel to 3d model edges
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Perhaps you are not rendering in square pixels by accident? Check your pixel aspect and make sure it is set to 1.
Also of note. The tilt settings do nothing in orthographic mode even though it looks like it is doing something in the viewport.
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I recreated the camera with standard camera in orthographic mode. I added camera correct modifier. This again stretched it out so it looks like a correct isometric. But when I render it again changes the way it looks and it's not really an accurate isometric. The walls especially look too short. My pixel aspect is 1.
Any ideas? I require an isometric and it's not working. It basically looks like the same example that I posted. The preview on the right is an isometric, you can see this with the roof and walls. But the rendered on left is not.
Help
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I still don't think a camera correct modifier works with a camera set to orthographic. Should work without it.
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Here is an image showing that:
-there is a difference in angles between the viewport screengrab and the render
-the 30 deg line is aligned with the viewport screengrab, but not with the render
Looks like something is wrong here indeed. Could you send us this scene? Uploader is in my signature.
Update: I could not reproduce it in my scene with a Corona Camera in orthographic mode. (attaching)