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I'm rendering an effect made of a rig in Maya that scales up and translates some texture UV on a "+" shape piece of geometry that is 2 single polygon squares merged with each other that scale forward to simulate a smoke trail from a projectile in a video game. The texture applied is a standard Vray Material with solid white diffuse color and a smoke texture applied as the opacity map. It's rendered from an animated camera that is changing focal length mid-shot, and every few frames it seems to flicker in a strange way where the texture gets smeared. It happens at the same frames every time I render via command line, and even when rendering the sequence from within maya.
I've tried even using a simple ramp shader as the transparency texture and it still happens. I've also tried applying it to a double-side shader, and swapping the Vray Material node for a Vray Light Shader, but nothing seems to work. I've attached a comparison picture of the same frames with both types of textures on a flickering and non-flickering frame.
The strange thing is that it doesn't seem to happen in the Vray VFB if I start on a non-flickering frame and then switch to a flickering one while it's in the middle of rendering.
I'm using the GPU rendering in Maya 2023 and Vray 6 for Maya v6.00.02 from Aug 30 2022.
Any help would be appreciated.
Edit: I have also noticed the same flickering on a similar effect render using ramp textures and alpha channels, to look like a laser beam, on another shot, but one where the camera does not have an animated focal length.
I've tried even using a simple ramp shader as the transparency texture and it still happens. I've also tried applying it to a double-side shader, and swapping the Vray Material node for a Vray Light Shader, but nothing seems to work. I've attached a comparison picture of the same frames with both types of textures on a flickering and non-flickering frame.
The strange thing is that it doesn't seem to happen in the Vray VFB if I start on a non-flickering frame and then switch to a flickering one while it's in the middle of rendering.
I'm using the GPU rendering in Maya 2023 and Vray 6 for Maya v6.00.02 from Aug 30 2022.
Any help would be appreciated.
Edit: I have also noticed the same flickering on a similar effect render using ramp textures and alpha channels, to look like a laser beam, on another shot, but one where the camera does not have an animated focal length.
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