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[Max] I need help! / Re: Render multiples camera matching
« Last post by Frood on Today at 14:02:30 »Hi,
you cannot set a different background for each camera, except when using any "xyz manager" out there, but you can do this (and much more) for different frames of the timeline:
Name your background images "bg_00.jpg", "bg_01.jpg" and so on, then create an IFL ("Image File List") sequence by selecting "Load as sequence" when choosing the file "bg_00.jpg" as bitmap for a standard max bitmap (Corona bitmap is not able to create or use IFL sequences).
This creates a file named Edit:"bg_01.ifl" "bg_00.ifl" which is a simple text file containing the names of all background bitmaps and is used as movie file by the bitmap node with one image per frame in the timeline. At frame 0 you will get bg_00.jpg, at frame 1 you'd have bg_01.jpg and so on by default.
Then animate your camera (and its settings) to match in every frame. You can use your already created cameras to align the animated one to them at every frame, having the Auto Key button activated. Or just choose the correct camera for the current background image to render if you do not want to animate it. I'm doing this since decades with the exception that I usually take 5 frames for one background/shot to have enough space for motion blur if required.
Alternatively you could use a corona select map instead of an IFL sequence and animate/change the selected map. You will not be able to feed the viewport background with it unless you use it as environment map though.
Attaching an (low version, Max2021, Corona v9 since I do not know what versions you are on) example scene. Start IR and scrub to frames 0 to 6 to see what's happening. Background images are piped through CoronaTonemapControl, the viewport uses the IFL sequence directly with "Animate Background" enabled.
Good Luck
I'm trying to insert a different background image for each camera to do different photomatching in the same scene, but I don't understand how
you cannot set a different background for each camera, except when using any "xyz manager" out there, but you can do this (and much more) for different frames of the timeline:
Name your background images "bg_00.jpg", "bg_01.jpg" and so on, then create an IFL ("Image File List") sequence by selecting "Load as sequence" when choosing the file "bg_00.jpg" as bitmap for a standard max bitmap (Corona bitmap is not able to create or use IFL sequences).
This creates a file named Edit:
Then animate your camera (and its settings) to match in every frame. You can use your already created cameras to align the animated one to them at every frame, having the Auto Key button activated. Or just choose the correct camera for the current background image to render if you do not want to animate it. I'm doing this since decades with the exception that I usually take 5 frames for one background/shot to have enough space for motion blur if required.
Alternatively you could use a corona select map instead of an IFL sequence and animate/change the selected map. You will not be able to feed the viewport background with it unless you use it as environment map though.
Attaching an (low version, Max2021, Corona v9 since I do not know what versions you are on) example scene. Start IR and scrub to frames 0 to 6 to see what's happening. Background images are piped through CoronaTonemapControl, the viewport uses the IFL sequence directly with "Animate Background" enabled.
Good Luck