ImmediateMesh

继承： Mesh < Resource < RefCounted < Object

Mesh optimized for creating geometry manually.

描述

A mesh type optimized for creating geometry manually, similar to OpenGL 1.x immediate mode.

Here's a sample on how to generate a triangular face:

    var mesh = ImmediateMesh.new()
    mesh.surface_begin(Mesh.PRIMITIVE_TRIANGLES)
    mesh.surface_add_vertex(Vector3.LEFT)
    mesh.surface_add_vertex(Vector3.FORWARD)
    mesh.surface_add_vertex(Vector3.ZERO)
    mesh.surface_end()

    var mesh = new ImmediateMesh();
    mesh.SurfaceBegin(Mesh.PrimitiveType.Triangles);
    mesh.SurfaceAddVertex(Vector3.Left);
    mesh.SurfaceAddVertex(Vector3.Forward);
    mesh.SurfaceAddVertex(Vector3.Zero);
    mesh.SurfaceEnd();

Note: Generating complex geometries with ImmediateMesh is highly inefficient. Instead, it is designed to generate simple geometry that changes often.

方法

方法说明

void clear_surfaces ( )

Clear all surfaces.

void surface_add_vertex ( vertex: Vector3 )

Add a 3D vertex using the current attributes previously set.

void surface_add_vertex_2d ( vertex: Vector2 )

Add a 2D vertex using the current attributes previously set.

void surface_begin ( primitive: PrimitiveType, material: Material = null )

Begin a new surface.

void surface_end ( )

End and commit current surface. Note that surface being created will not be visible until this function is called.

void surface_set_color ( color: Color )

Set the color attribute that will be pushed with the next vertex.

void surface_set_normal ( normal: Vector3 )

Set the normal attribute that will be pushed with the next vertex.

void surface_set_tangent ( tangent: Plane )

Set the tangent attribute that will be pushed with the next vertex.

void surface_set_uv ( uv: Vector2 )

Set the UV attribute that will be pushed with the next vertex.

void surface_set_uv2 ( uv2: Vector2 )

Set the UV2 attribute that will be pushed with the next vertex.