How to Cam Project Voxels into the scene seamlessly?
#1
Hi people, so I have a big cube that I filled with voxels (Birth Voxels) and than I added Modify Bindings and now that's simulated to burst into pieces after the Collision and being hit. Now I wonder if there is a way to camera project this so it blends with my scene (grass field) and than be blasted by impact? I know there is a Cam Projection node but not sure if this is what I need to use or 3DsMax Cam Projection Modifier. I tried but Max Cam Projection didn't work on Voxels. Just solid objects like primitives. Anyone knows workaround?
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#2
By camera projection you mean UVW coordinates? In order to camera-project a texmap?
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#3
(12-31-2020, 06:30 AM)tyFlow Wrote: By camera projection you mean UVW coordinates? In order to camera-project a texmap?

Yes sir, so it blends into the scene (being invisible). I wish this forum was accepting pics and videos so I  can show you but you got it. Cam Projection UV from Camera.
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#4
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#5
Thank you for that explanation. This is my blasted voxel grid that I intended on blending with the ground so when it gets hit it pops and explodes but I want it to blend so I am trying to project from camera onto the tracked footage or a photo.     
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#6
Have you tried the Mapping operator's "Mapping From Camera" option? It will project camera coordinates to particles UVW overrides.

NOTE: because your flow features tons of shape particles, and mapping overrides by default will disable instancing (due to viewport drawing limitations), I would recommend disabling mapping overrides in your Display operator BEFORE adding the Mapping operator, to avoid extremely slow viewport updates. If you're using VRay/Redshift/etc to update, the mapping overrides should still show up in the render as instances. This is just a workaround to a viewport limitation.

Alternatively if you're in max 2020+, you can set the Display operator mapping override setting to "single channel display" which will allow for fast viewport updates even when mapping overrides are present.
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#7
Thank you for these advices. Here's my Flow and also my scene. Let me know how can I blend my particles with the image and make it invisible like camera projection. I added Mapping Operator and set to Project From Camera and I put them in every even I just assumed its like with Mesh Operator. Is this the way to go?
Also Happy new year! Smile


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