opengl - Rendering translucent objects in a complex scene -

so stuck following problems scenegraphs , translucent objects... problem want render multiple translucent objects in 1 scene. know have render opaque objects first , translucent front. working well... more or less...

but real problem example have 1 translucent cube, in white (or other color) , alpha value example of 0.5. internal structure of cube given in wavefront obj file , order of single planes of cube given. dont order single planes of object because in scene >1000 objects , >1000 vertices of each object, order objects whole. if render single planes of object , move around, there comes moment, when 1 plane nearer 1 rendered before other one. , second 1 not being rendered because depth buffer not allowing this, error in rendering.

shutting down depth buffer not solution: need because there may complex objects translucent , opaque.

any hints how can achieve objects, if complex , both opaque , translucent, rendered in correct way ?

basically have following:

• separate opaque , translucent (if 1 object consists of both have tear appart)

• clear depth buffer

• enable depth test , draw opaque.

• make depth buffer read only: gldepthmask(gl_false)

• draw translucent front.

that should trick.