Crate opencsg_sys 

FFI bindings to OpenCSG (image-based CSG rendering for OpenGL).

OpenCSG renders CSG (Constructive Solid Geometry) results directly into the OpenGL depth buffer using the Goldfeather or SCS algorithms. After calling render, re-render the primitives with GL_EQUAL depth test to shade them.

Structs

OcsgPrimitive

Opaque handle to an OpenCSG primitive.

Constants

ALGORITHM_AUTOMATIC

Algorithm: automatic selection based on primitive properties.

ALGORITHM_GOLDFEATHER

Algorithm: Goldfeather (robust, handles concave primitives).

ALGORITHM_SCS

Algorithm: SCS (fast, convex primitives only).

INTERSECTION

Operation: the primitive is intersected into the CSG product.

OPTION_ALGORITHM

Option: which CSG algorithm to use.

OPTION_DEPTH_COMPLEXITY

Option: depth complexity sampling strategy.

OPTION_OFFSCREEN

Option: offscreen buffer type.

SUBTRACTION

Operation: the primitive is subtracted from the CSG product.

Functions

free_resources

Release OpenGL resources allocated by OpenCSG for the current context.

init_gl

Initialize OpenCSG’s internal GL loader. Call once after GL context is current.

opencsg_free_resources

opencsg_init_gl

opencsg_primitive_free^⚠

opencsg_primitive_new^⚠

opencsg_primitive_set_bounding_box^⚠

opencsg_render_primitives^⚠

opencsg_set_option

primitive_free^⚠

Free an OpenCSG primitive.

primitive_new^⚠

Create a new OpenCSG primitive.

primitive_set_bbox^⚠

Set the bounding box on a primitive (normalized device coordinates).

render^⚠

Perform CSG rendering on a list of primitive pointers.

set_option

Set an OpenCSG option (algorithm, depth complexity, offscreen type).

Type Aliases

RenderFn

C callback type for rendering a primitive’s geometry.