ClearSurface

ClearSurface

Command Index · Blitz3D · Surfaces

ClearSurface:Void surface:Int32, clear_vertices:Int32=1, clear_triangles:Int32=1

Parameter	Mode	Type	Default	Description
surface	In	Int32	required	Surface handle.
clear_vertices	In	Int32	1	1 to remove the vertices. Defaults to 1.
clear_triangles	In	Int32	1	1 to remove the triangles. Defaults to 1.

Description

Removes the vertices, the triangles or both from a surface. The surface itself stays, ready to receive new geometry. Together with AddVertex this is the way to rebuild a mesh every frame or to switch to a different level of detail. If you remove only the vertices, remove the triangles as well, since they point at the vertices.

Examples

mesh = CreateMesh()
surf = CreateSurface(mesh)
a = AddVertex(surf, 0, 0, 0)
b = AddVertex(surf, 0, 1, 0)
c = AddVertex(surf, 1, 0, 0)
AddTriangle surf, a, b, c
Print CountVertices(surf) + " vertices, " + CountTriangles(surf) + " triangles"
ClearSurface surf
Print CountVertices(surf) + " vertices, " + CountTriangles(surf) + " triangles"

Related Commands

CreateSurface, FindSurface, GetSurface, PaintSurface

Command Index · Blitz3D · Surfaces