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Hello guys,
I wish to discuss about compositing workflow with separately rendered elements and 3d motion blur.
I keep running into the same issues when it comes to this procedure, the obvious thing is that regardless of what you use luma masks, mattes or alpha/32 bit color space, I always find myself running into the issue of the motion blur not rendering out the color bleeds on the edges of the background along with the moving object, so when it comes to placing the moving object with a background which was rendered separately you will get inconsistencies with the blurred edges of the moving object vs the color of the background.
Best way to explain this is look at the example below, comparing the original render from 3d with the comped one, the problems are obvious, in the past we went around this by rendering out the background plate alone, placing it in the environment tab and rendering the foreground objects with motion blur this way the alpha or masks would end up catching the correct coloration on the blurred edges from the background and the comping would work better, however with linear color space and gamma this has proven to be more tricky, we had a way in mental ray but with vray i am not sure how, which is why i am asking if there is a way here, to place the background there and have vray not touch its gamma or coloration and render as is from the camera regardless of the lights or exposure in the scene.
Thank you,
I wish to discuss about compositing workflow with separately rendered elements and 3d motion blur.
I keep running into the same issues when it comes to this procedure, the obvious thing is that regardless of what you use luma masks, mattes or alpha/32 bit color space, I always find myself running into the issue of the motion blur not rendering out the color bleeds on the edges of the background along with the moving object, so when it comes to placing the moving object with a background which was rendered separately you will get inconsistencies with the blurred edges of the moving object vs the color of the background.
Best way to explain this is look at the example below, comparing the original render from 3d with the comped one, the problems are obvious, in the past we went around this by rendering out the background plate alone, placing it in the environment tab and rendering the foreground objects with motion blur this way the alpha or masks would end up catching the correct coloration on the blurred edges from the background and the comping would work better, however with linear color space and gamma this has proven to be more tricky, we had a way in mental ray but with vray i am not sure how, which is why i am asking if there is a way here, to place the background there and have vray not touch its gamma or coloration and render as is from the camera regardless of the lights or exposure in the scene.
Thank you,
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