Struct Geometry

geometry/geometry.go:28–52

Geometry encapsulates a three-dimensional vertex-based geometry.

// Geometry encapsulates a three-dimensional vertex-based geometry.
type Geometry struct {
	gs            *gls.GLS          // Reference to OpenGL state (valid after first RenderSetup)
	refcount      int               // Current number of references
	groups        []Group           // Array geometry groups
	vbos          []*gls.VBO        // Array of VBOs
	handleVAO     uint32            // Handle to OpenGL VAO
	indices       math32.ArrayU32   // Buffer with indices
	handleIndices uint32            // Handle to OpenGL buffer for indices
	updateIndices bool              // Flag to indicate that indices must be transferred
	ShaderDefines gls.ShaderDefines // Geometry-specific shader defines

	// Geometric properties
	boundingBox    math32.Box3    // Last calculated bounding box
	boundingSphere math32.Sphere  // Last calculated bounding sphere
	area           float32        // Last calculated area
	volume         float32        // Last calculated volume
	rotInertia     math32.Matrix3 // Last calculated rotational inertia matrix

	// Flags indicating whether geometric properties are valid
	boundingBoxValid    bool // Indicates if last calculated bounding box is valid
	boundingSphereValid bool // Indicates if last calculated bounding sphere is valid
	areaValid           bool // Indicates if last calculated area is valid
	volumeValid         bool // Indicates if last calculated volume is valid
	rotInertiaValid     bool // Indicates if last calculated rotational inertia matrix is valid
}

// Group is a geometry group object.
type Group struct {