mesh alpha

[hw3web]

Hi there

 

1) I do understand that we can make transparency of object by material, but is there other way like mesh.opacity  to make transparency of all mesh not material just, so if is a full material 100% alpha by jpg, and mash opacity will be 0.4 , all  mesh will be like 40% visiable

 

 

2) Groups - is any chance that blender exporter will as well include groups of mesh and then can be easier for babylonJS manipulate with more elements in one time ?

 

 

thank you

[Temechon]

Hi, 

 

1) I don't think such a feature exists today in babylon. It does not make any sense to update the opacity of a mesh : the correct way is to update the opacity of its material.

 

2) I don't know very well the Blender exporter, so i cannot answer here.

[GameMonetize]

For the global opacity, there is a way to do that per mesh: mesh.visibility

 

i do not know the group feature of blender but if you explain me how to create one, I can have a look^^

[hw3web]

group is as I understand another paramert of mesh like ID or name ,

 

where id meshA(ID= 'ma') and mashB (ID='mb')

 

if you could add another parametr like groupName then :meshA(ID= 'ma', group=['gr1']) and mashB (ID='mb', group=['gr1'])

 

if you will select scene.getGroupByID('gr1').visibility = 0.5 - both mesh will be selected and in this example half transparent .

 

as I understand mesh can belong to few groups so that mean this parametr should be as array.

I do not know Python, but is look like it should be in exporter something like

????????????????????????????????????????????????????

def write_Groups(file_handler, groups, group, mult):

        file_handler.write(",\""+group+"\":[" + "%.4f,%.4f,%.4f"%(group) + "]")

????????????????????????????????????????????????????

////// just thought

 

but it will be very help full for futher development and as someone who know python and blender will do it in minute

 

 

 

 

regards

Hubert

 

 

 

PS I start to like more and more BanylonJS , shame it is not support CPU alternative just for those whose driver or graphic card is not compatible ( 

 

It shame as I do not know us much JS I would love to contribute in evolution Babylon - hope and I believe it will be the best 3d engine on JS