Is sansar supporting emissive lights ?
I think i figure a bit out how to do it in blender. Good example still welcome. But in sansar the white surface keeps grey in the shadow. Lightbulb looks a bit silly now this way when the are on. Yes you can fix it by add a sphere light. But that's a crazy idea for me.
Support sansar emmisive lights ?
And how to do it with blender ? In case i did it wrong.
Emissive lights are not emitters at this time, what i do is use a small point light and change the intensity of it so it's usable and looks like it creates light.
Emissive lights in a raytraced scene will cast light, for example if you bake in Blender with Emissive lights it will create light around it.. But the best way to do it is to fake it =D
(not even UE4, from what i saw, cast light from emissive surfaces
Have you tried EXR format? Sansar supports emmisive EXR..used it on many light items... but latest update i think can make an emmisive direct from a png in matertials editor...so am guesing create your emmisive png in blender..then on upload check it in the materials editor..
Thanks. i need to try it. the mistake is possible to add it in blender. as texture. Now i nee to check first wich option i need to select in the upload.
Back later :)
@Agustine. Thanks that works. 10x more easy then try to get it working in blender. I now only tried 100% white. Still things to learn but now i can do what i want. make the lightbulb emmisive and put a spot light under it what i already did on the test.
It works with PNG file.
My cube test.
..looks great! Congrats..
Richard /Agustine, Does that cast light? or just glow?
Yes, it casts a little light but not alot...you may need to use an additional attached light..
It's not usefull to light a room with it. Add a normal light for that.
I just finished my second test, and it's doing just what i need. gives the light bulb the impression it gives light/ instead of a dark turned off light bulb. To light the room i have a spotlight on the same place.
With the grey color you can set the amount of emmisive brightness. (hope it's a good description)
that's what i thought he was asking , I didn't understand the question, Sorry Richardus
What is this "emmissive" texture for which you speak? Is it the same as occlusion?
If you make a cube. in my case i just did placed seams everywhere and made a big spacing between it for explanation. You get UV-Map like this.
In my paint program i did give the cube sides a color. Black for no glow and white for maximum glow. So the emissive map looks like this.
Now i did upload the test cube. and i selected material settings in the upload after you did choice the object.
Now i selected Standard + Emissive as default material.
And in the emissive field i did choice custom texture file and then i did add the above created map with black white or maby gray from disk, This depends on what you want to let radiate / glow.
This is the result in edit mode.
Hope this helps to understand the emissive map.
I have not been able to get any color when I use emissive light. Has anybody tried to get a glowing object that has color (ie. not white)?
Just did a test special for you. Ok, am curious to.
For me it works, i used the same Emissive map as before but made the lightbulb color red. Then i did upload the FBX and add the Emissive map in the material uploader. In this case i used 100% red.
It seems that emissive light is less than 8-bits. And when I use .exr seems batter but not equivalent to mudbox.
If we do a subtle illumination that just guve that very tiny glow to a under-skin lava in mudbox, inside sansar it extrapolate into a strong emissive, without transparency/gradative transparence.
I will try not use this. But can be the difference between ugly and polish use of incandescence. Hope this limitation is just my imagination, and if not, this feature should not there for a really great improvement on performance.