What happened to normals (3D bump map) with point lights?

I remember seeing this a while ago and being quite excited:

https://www.youtube.com/watch?v=z0pEcncwkEQ

…I’ve never really seen anything which properly introduces the technique and there’s not much in the demo folder… Closest I can find is the composite viewer with a JSON string, which isn’t much help.

Am I missing something? Is it already ‘out there’ somewhere, or did it never happen?

C

One of these two, I imagine. There are a few notes there, though I suppose those don’t “properly introduce the technique”. How familiar are you with the general idea?

https://www.codeandweb.com/spriteilluminator would be handy creating the normal map

Hey. Thanks for getting back to me. @StarCrunch… I come from a 3D background, so I can ‘speak the language’ (just about). Thanks for the WIKI link, I hadn’t actually seen that before.

@FearTec, yes, thanks, I’ve had a good look at Sprite Illuminator, but it’s a bit of  false economy… You can’t control the point-light within lua, so even though it professes ‘dynamic lighting’, that’s not strictly true (for Corona anyway), which to be frank, makes it a bit pointless (no pun intended).

I’ll have a look at the in-built composite shaders and see if I can get anywhere. Thanks again.

M

Maybe I’m misunderstanding what you mean, but there are properties for the light in those same effects. This is slightly outside the concerns of the Sprite Illuminator tool, of course, since all it’s trying to do is capture the underlying geometry.

I think, similar to a lot of Developers, I was hoping for a ‘bit more’ with lights and normals… The video I included at the top, blatantly shows a dynamic light being ‘moved’, producing a constantly changing render of the composite images (normal/standard). From what I can gather, this isn’t possible, or certainly not as easy as you’d think.

…The preview within sprite illuminator lets you move the point light around, but from what I can see, once you’ve exported your ‘normal map’ to corona, there’s no way of controlling that point light within LUA, so the video I posted isn’t achievable unless you go about it like this guy did:

https://forums.coronalabs.com/topic/55910-applying-a-light-to-multiple-objects-with-normal-maps/

M

…If I find a viable way of recreating the video, I’ll share it up here.

One of these two, I imagine. There are a few notes there, though I suppose those don’t “properly introduce the technique”. How familiar are you with the general idea?

https://www.codeandweb.com/spriteilluminator would be handy creating the normal map

Hey. Thanks for getting back to me. @StarCrunch… I come from a 3D background, so I can ‘speak the language’ (just about). Thanks for the WIKI link, I hadn’t actually seen that before.

@FearTec, yes, thanks, I’ve had a good look at Sprite Illuminator, but it’s a bit of  false economy… You can’t control the point-light within lua, so even though it professes ‘dynamic lighting’, that’s not strictly true (for Corona anyway), which to be frank, makes it a bit pointless (no pun intended).

I’ll have a look at the in-built composite shaders and see if I can get anywhere. Thanks again.

M

Maybe I’m misunderstanding what you mean, but there are properties for the light in those same effects. This is slightly outside the concerns of the Sprite Illuminator tool, of course, since all it’s trying to do is capture the underlying geometry.

I think, similar to a lot of Developers, I was hoping for a ‘bit more’ with lights and normals… The video I included at the top, blatantly shows a dynamic light being ‘moved’, producing a constantly changing render of the composite images (normal/standard). From what I can gather, this isn’t possible, or certainly not as easy as you’d think.

…The preview within sprite illuminator lets you move the point light around, but from what I can see, once you’ve exported your ‘normal map’ to corona, there’s no way of controlling that point light within LUA, so the video I posted isn’t achievable unless you go about it like this guy did:

https://forums.coronalabs.com/topic/55910-applying-a-light-to-multiple-objects-with-normal-maps/

M

…If I find a viable way of recreating the video, I’ll share it up here.