Nearest Point On Surface

[faultymoose]

So far I have (with mainObject and objectCards):

samplerInfo.pointWorld > nearestPointOnMesh.inPosition

mainObject.outMesh > nearestPointOnMesh.inMesh

This (I think) gives me access to the worldSpace/objectSpace/UV coordinates for the nearest point on the mainObject based upon the worldSpace position of the currently sampled pixel.

Here's where I get stuck, trying to find the illuminance value at the resulting nearestPointOnMesh of mainObject...



My next thought was to somehow use a surfaceLuminance node to sample the luminance value of mainObject at the resulting position, but as far as I know the surfaceLuminance node only returns the luminance value of the current pixel being shaded...?

[The Infernal One]

Try using pointOnMeshInfo node

[faultymoose]

Unfortunately, it seems as though the pointOnMeshInfo node only returns a world space coordinate and surface normal according to UV coordinates.

[faultymoose]

Okay I've thought of a slightly different solution:

Take the nearest point on the character's body from the currently rendering pixel on the character's card, and give that pixel the same surface normal as the nearest point on the body... if that makes sense?

The only problem is, I can't seem to get the connections to work - I've tried plugging the normal obtained from the nearestPointOnMesh node directly into the card shader's Normal Camera attribute. I've also tried plugging it into a bump2D node's Normal attribute, and the bump node into the card shader's Normal Camera...

Any suggestions?

[The Infernal One]

There's one dvd by Weta about using closestPointOnSurface, sampler info and point on mesh info. I think is called Flow workflows in production, or something like that...

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