Maxwell Render | Official public forum

This may be a huge embarrassment for myself but Ill give it a shot anyway

I often see good models been rendered into maxwell using emitters, and they have a very good lightsetup but there is something missing.

Lets take this image as an exempel http://page.freett.com/___htmlswich_/fe ... fumi09.jpg

its a very good model I think, but the materials just dont have anything to reflect on.

So my question would be, is there possible to use mxi hdr images to give the scene materials something to reflect to without giving any light from itself? With this option I think you could have alot of flexibility to setup youre lights just the way you want it but at the same time using emitters to lightening the scene.

By the time Im writing this, it hits me that this might be functionable with just an original bitmap attached to a sphere around the scene, or would it?

This question might be messy but straightening things up for me please

I am not sure i am understan. But i You will model surrounding objects ttey will reflect light. So they in fact emit light... So why some mxi surround sphere should not emit light??? Just add to mxi low value of emittance and ad your emitters into scene too...

Is my opinion correct???

ludenhud wrote:
By the time Im writing this, it hits me that this might be functionable with just an original bitmap attached to a sphere around the scene, or would it?

Yes sure, I've been doing it with images attached to planes so I can move them around exactly where I want. The thing is though you have to illuminate them with some other lightsources and this can get messy sometimes when you don't want these lights to influence the rest of the scene.

Or use a low emitting mxi, but maybe then reflections won't be as strong overall, depends on the mxi...

It would be a nice feature if we could use an mxi/hdr image environmentally mapped around an object for reflections. I think that's what is missing at the moment.

Becco_UK wrote:It would be a nice feature if we could use an mxi/hdr image environmentally mapped around an object for reflections. I think that's what is missing at the moment.

yeah thats my oppinion too. I dont know about the bitmap sphere thing tho, but maby victor or someone could clear things out by there knowledge about this kind of behavior.

I've been experimenting with this and it has worked for me with spherical environments using emitting mxi textures with zero watts inputted.

philipbruton wrote:I've been experimenting with this and it has worked for me with spherical environments using emitting mxi textures with zero watts inputted.

Thats great, could you post some exempels of your breakthrough?

ok here's a very simple test.

scene setup



the image without the dome



dome with diffuse & jpg



dome with emitter & mxi @ o watts



as you can see the mxi is effecting the image

When you use an MXI as an emitter map, all the illuniation data comes from the MXI itself. So, no matter what you set the emitter's wattage (intensity) to, it will be ignored is lieu of the info in the MXI. At least that's the way that I have observed it behaves.

::icn3d