3DSTATE for Visual basic.Net开发(十一)
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3DSTATEfor Visual basic.Net开发
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九、Overlays and 2D Effects覆盖和二维效果
在3Dstate中二维都被称为层,“Layers”。
1、添加层
用函数STATE_engine_add_layer添加层。其参数有(ByVal left_x As Double, ByVal top_y As Double, ByVal right_x As Double, ByVal bottom_y As Double, ByVal bitmap_handle As UIntPtr, ByVal glass_type As Byte)
其中:left_x As Double, top_y As Double表示创建层的左上角位置,其范围为0到100。right_x As Double, bottom_y As Double表示层的右下角位置,其范围也是0到100。bitmap_handle是贴图的Handle值。glass_type决定层的透明度。
STATE_polygon_set_light( layer_handle, translucent_level_rgb)
如下:
Dim mbit As UIntPtr = STATE_bitmap_load("C:/VBNet 3D Developer Studio 6.0 (Student Package)/Worlds/Bitmaps/ARENE_LAMP_000.bmp", 50)
STATE_engine_add_layer(0, 0, 10, 10, mbit, 150)
2、利用层
关于利用层的函数有:
STATE_polygon_disable设置层不可用
STATE_polygon_enable设置层不可用
STATE_polygon_set_bitmap_fill
STATE_polygon_set_light
STATE_polygon_set_translucent
STATE_polygon_move
STATE_polygon_shift_bitmap
eg:STATE_polygon_disable(layer01)
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