# TerrainDetail terrain,detail_level[,vertex_morph]

# Parameters

terrain - terrain handle detail_level - detail level of terrain vertex_morph (optional) - True to enable vertex morphing of terrain. Defaults to False.

# Description

Sets the detail level for a terrain. This is the number of triangles used to represent the terrain. A typical value is 2000. The optional vertex_morph parameter specifies whether to enable vertex morphing. It is recommended you set this to True, as it will reduce the visibility of LOD 'pop-in'.

# Example

; TerrainDetail Example
; ---------------------
Graphics3D 640,480
SetBuffer BackBuffer()
camera=CreateCamera()
PositionEntity camera,1,1,1
light=CreateLight()
RotateEntity light,90,0,0
; Load terrain
terrain=LoadTerrain( "media/height_map.bmp" )
; Scale terrain
ScaleEntity terrain,1,50,1
; Texture terrain
grass_tex=LoadTexture( "media/mossyground.bmp" )
EntityTexture terrain,grass_tex,0,1
; Set terrain detail value
terra_detail=4000
; Set vertex morph value
vertex_morph=True
While Not KeyDown( 1 )
; Change terrain detail value depending on key pressed
If KeyDown(26) Then terra_detail=terra_detail-10
If KeyDown(27) Then terra_detail=terra_detail+10
; Toggle vertex morphing on/off when spacebar is pressed
If KeyHit(57)=True Then vertex_morph=1-vertex_morph
; Set terrain detail, vertex morphing
TerrainDetail terrain,terra_detail,vertex_morph
If KeyDown( 203 )=True Then x#=x#-0.1
If KeyDown( 205 )=True Then x#=x#+0.1
If KeyDown( 208 )=True Then y#=y#-0.1
If KeyDown( 200 )=True Then y#=y#+0.1
If KeyDown( 44 )=True Then z#=z#-0.1
If KeyDown( 30 )=True Then z#=z#+0.1
If KeyDown( 205 )=True Then TurnEntity camera,0,-1,0
If KeyDown( 203 )=True Then TurnEntity camera,0,1,0
If KeyDown( 208 )=True Then MoveEntity camera,0,0,-0.1
If KeyDown( 200 )=True Then MoveEntity camera,0,0,0.1
x#=EntityX(camera)
y#=EntityY(camera)
z#=EntityZ(camera)
terra_y#=TerrainY(terrain,x#,y#,z#)+5
PositionEntity camera,x#,terra_y#,z#
RenderWorld
Text 0,0,"Use cursor keys to move about the terrain"
Text 0,20,"Use [ and ] keys to change terrain detail level"
Text 0,40,"Press spacebar to enable/disable vertex morphing"
Text 0,60,"Terrain Detail: "+terra_detail
If vertex_morph=True Then Text 0,80,"Vertex Morphing: True" Else Text 0,80,"Vertex Morphing: False"
Flip
Wend
End

Index
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