ScissorAttrib¶

from acron.core import ScissorAttrib

class ScissorAttrib¶

Bases:

Bases: RenderAttrib

This restricts rendering to within a rectangular region of the scene, without otherwise affecting the viewport or lens properties. Geometry that falls outside the scissor region is not rendered. It is akin to the OpenGL glScissor() function.

The ScissorAttrib always specifies its region relative to its enclosing DisplayRegion, in screen space, and performs no culling.

See ScissorEffect if you wish to define a region relative to 2-D or 3-D coordinates in the scene graph, with culling.

Inheritance diagram

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property class_slot → int¶

property frame → LVecBase4¶: Returns the left, right, bottom, top coordinates of the scissor frame. This defines a frame within the current DisplayRegion, where 0,0 is the lower-left corner of the DisplayRegion, and 1,1 is the upper-right corner.

static get_class_slot()¶

static get_class_type()¶

get_frame()¶: Returns the left, right, bottom, top coordinates of the scissor frame. This defines a frame within the current DisplayRegion, where 0,0 is the lower-left corner of the DisplayRegion, and 1,1 is the upper-right corner.

is_off()¶: Returns true if the ScissorAttrib is an ‘off’ ScissorAttrib, indicating that scissor testing is disabled.

static make()¶

Constructs a ScissorAttrib that restricts rendering to the indicated frame within the current DisplayRegion. (0,0) is the lower-left corner of the DisplayRegion, and (1,1) is the upper-right corner.

static make_default()¶: Returns a RenderAttrib that corresponds to whatever the standard default properties for render attributes of this type ought to be.

static make_off()¶: Constructs a new ScissorAttrib object that removes the scissor region and fills the DisplayRegion.