Module Osg.State_set

module State_set: sig .. end

Stores a set of modes and attributes which respresent a set of OpenGL state. Notice that a State_set contains just a subset of the whole OpenGL state.

In OSG, each Osg.Drawable and each Osg.Node has a reference to a Osg.State_set. These State_sets can be shared between different Drawables and Nodes (that is, several Drawables and Nodes can reference the same Osg.State_set. Indeed, this practice is recommended whenever possible, as this minimizes expensive state changes in the graphics pipeline.

type t

osg::StateSet holder.

val clone : t -> t

The same as new osg::StateSet( *basicStateSet ), useful if you want to change state set which is shared by several drawables and don't want other drawables to be changed.

val set_attribute : t ->
       Osg.State_attribute.t -> Osg.State_attribute.values list -> unit

Set this Osg.State_set to contain specified attribute and override flag.

val set_attribute_and_modes : t ->
       Osg.State_attribute.t -> Osg.State_attribute.values list -> unit

Set this Osg.State_set to contain specified attribute and set the associated GLMode's to specified value.

val set_texture_attribute_and_modes : t ->
       int -> Osg.State_attribute.t -> Osg.State_attribute.values list -> unit

Set this Osg.State_set to contain specified texture attribute and set the associated GLMode's to specified value.

val add_uniform : t ->
       'a Osg.Uniform.t -> Osg.State_attribute.values list -> unit

Set this StateSet to contain specified uniform and override flag.

val remove_uniform : t -> 'a Osg.Uniform.t -> unit

remove uniform from StateSet.

val gl_LIGHTING : int

TODO: make this less ad-hoc

val gl_POLYGON_OFFSET_POINT : int

val gl_POLYGON_OFFSET_LINE : int

val gl_POLYGON_OFFSET_FILL : int

val set_mode : t -> int -> Osg.State_attribute.values list -> unit

val set_render_bin_details : t -> int -> string -> unit

set_render_bin_details state_set bin_num bin_name