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Ambient colour a world property? UPDATE IN TUHOPPU

Posted: Sat Jun 19, 2004 9:10 am
by ideasman
I have noteced that most 3d applications have the ambient light colour as property of the material.

In blender the ambient colour is a world property, I think this is a bit limiting since it gives more control to be able to adjust each materials ambient colour.

Any comments?

I could probably do this myself with a bit of time, but wanted to see what others thaught or is sombody knew how to impliment this better then me :) .

Posted: Sat Jun 19, 2004 3:27 pm
by Monkeyboi
I think the idea is that you can easily and quickly add a colour scheme to your entire scene using Blenders ambient. But I agree that it is limiting. Maybe we really need two ambients - global ambient and local ambient..

Posted: Sat Jun 19, 2004 7:38 pm
by Dani
with the possibility of totally overriding the per-material settings with the global ambient.


***[hint] cameras could also use per camera image-size, overridable, of course ;) [/hint]***

Posted: Sun Jun 20, 2004 12:40 am
by ideasman
So IF I was to go and code in an ambient rgb value for each material, Get it working in the renderer and add a python hook.

Mabe have a mode switch- WORLD AMB / MAT AMB
... or a slider to interpolate the values.

Would anybody have a problem with this?

Posted: Mon Jun 21, 2004 7:37 am
by ideasman
I have modified tuhoppy so there are AMB RGB sliders in the material view.
World RGB values are no longer used.

- This is an experement but it works fine.

Posted: Tue Jun 22, 2004 11:46 am
by jiri
and it would be useful for import scripts too ;-)

Posted: Tue Jun 22, 2004 11:52 am
by jesterKing
Isn't this what the emit is for?


Posted: Tue Jun 22, 2004 3:58 pm
by Usagi
jesterKing wrote:Isn't this what the emit is for?

Emit is not colored, isn't it?

Posted: Tue Jun 22, 2004 7:35 pm
by Dani
hum, but what if I want a global ambient instead?

I think that setting an ambient in world should over-ride the material ambient.

And when global ambient components=0,0,0
then it's the per-material ambient that's taken into account...



Posted: Tue Jun 22, 2004 8:20 pm
by Usagi
I prefer the idea with a slider in world properties to mix between global and local. That way you have all the flexibility from "no influence" to "override".

Posted: Wed Jun 23, 2004 10:17 am
by chimera
oke here my stuff :)

for settings/parameters that exist globally and individually I prefer having 3 units:

- 2 units that represent the global and individual settings. the mixslider between global / individual is for me a global setting.
- 1 individual unit that controls whats affecting the object. in this case this would be 2 buttons "global / individual" that can be checked both, just 1 or none. commonly this would be set to global, right?

Posted: Wed Jun 23, 2004 10:35 am
by ideasman
About the mixing between global and local.

I have alredy done this, its set to global by default to make older scenes render the same way they used to (therefor making this adjustment backwards compatable)

BUT. This manages to cock up makesdna.c and is says that there is some problem with the stack offset.

I tried to make ambMix var the last one spesified but is still wouldent comile.

Could sombody who knows how to ad vars into blender file format help me out here????

- Thanks