org.oscim.renderer.bucket

Class PolygonBucket.Renderer

java.lang.Object

org.oscim.renderer.bucket.PolygonBucket.Renderer

Enclosing class:

PolygonBucket

public static final class PolygonBucket.Renderer
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	CLIP_BIT

Method Summary

Modifier and Type	Method and Description
static void	clip(GLMatrix mvp, int clipMode)
static RenderBucket	draw(RenderBucket buckets, GLViewport v, float div, boolean first) draw polygon buckets (until bucket.next is not polygon bucket) using stencil buffer method
static void	drawOver(GLMatrix mvp, int color, float alpha) Clear stencilbuffer for a tile region by drawing a quad with func 'always' and op 'zero'.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CLIP_BIT

public static final int CLIP_BIT

See Also:

Constant Field Values

Method Detail

draw

public static RenderBucket draw(RenderBucket buckets,
                                GLViewport v,
                                float div,
                                boolean first)

draw polygon buckets (until bucket.next is not polygon bucket) using stencil buffer method

Parameters:

buckets - layer to draw (referencing vertices in current vbo)

v - GLViewport

div - scale relative to 'base scale' of the tile

first - pass true to clear stencil buffer region

Returns:

next layer

clip

public static void clip(GLMatrix mvp,
                        int clipMode)

drawOver

public static void drawOver(GLMatrix mvp,
                            int color,
                            float alpha)

Clear stencilbuffer for a tile region by drawing a quad with func 'always' and op 'zero'. Using 'color' and 'alpha' to fake a fade effect.