why it diffent result between effect

[koller202]

i use billboard and set

Code: Select all

effect->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);

my picture is bmp and set blackgound black

result blackgound still can see in game

but i use in ParticleSystemSceneNode

Code: Select all

  effect->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA)

my picture is bmp and set blackgound black

result blackgound black is removed ( same in example special effect )

why different
________
Vaporizer Review

[hybrid]

If you use vertex alpha you have to set the vertex colors to some alpha value != 255. That's what is done in the particle renderers.

[koller202]

front is

Code: Select all

effect->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);

use billboard
and setcolor 0,255,255,255

behind is ParticleSystemSceneNode use EMT_TRANSPARENT_VERTEX_ALPHA

same picture and same format
________
MERCEDES-BENZ OM603 SPECIFICATIONS

[hybrid]

Do you have lighting disabled?

[koller202]

if disable

Code: Select all

effect->setMaterialFlag(video::EMF_LIGHTING, true);

i use 1.3.1 test in dx and opengl same result
________
HOTBOX VAPORIZER

[Virion]

disable should be

effect->setMaterialFlag(video::EMF_LIGHTING, false);

[koller202]

pic 1 effect->setMaterialFlag(video::EMF_LIGHTING, false);
pic 2 effect->setMaterialFlag(video::EMF_LIGHTING, true);

i see code niko in demo tutorial

if addParticleSystemSceneNode he use EMT_TRANSPARENT_VERTEX_ALPHA and can remove blackgound

but if billboard he use EMT_TRANSPARENT_ADD_COLOR all demo

and if EMT_TRANSPARENT_VERTEX_ALPHA he use fireball.bmp
EMT_TRANSPARENT_ADD_COLOR he use fire.bmp

why ?
thank you
________
IMPERIAL (AUTOMOBILE)