Package com.metsci.glimpse.topo

Class ShadedReliefProgram

java.lang.Object

com.metsci.glimpse.core.gl.shader.GlimpseShaderProgram

com.metsci.glimpse.topo.ShadedReliefProgram

All Implemented Interfaces:

DrawableTextureProgram

public class ShadedReliefProgram
extends GlimpseShaderProgram
implements DrawableTextureProgram

Takes two textures - the elevation data and the hillshade data - and does a nonlinear interpolation on the video card to index into the colormap.

Author:

borkholder

Field Summary

Fields

Modifier and Type	Field	Description
static int	ELEVATION_TEXTURE_UNIT
static int	HILLSHADE_TEXTURE_UNIT
static int	MAX_COLORS

Constructor Summary

Constructors

Constructor	Description
ShadedReliefProgram()
ShadedReliefProgram(int elevTexUnit, int shadeTexUnit)

Method Summary

Modifier and Type	Method	Description
void	begin(GlimpseContext context)
void	begin(GlimpseContext context, float xMin, float xMax, float yMin, float yMax)
void	dispose(GlimpseContext context)
void	doUseProgram(com.jogamp.opengl.GL gl, boolean on)
void	draw(GlimpseContext context, int mode, int xyVbo, int sVbo, int first, int count)
void	draw(GlimpseContext context, int mode, GLEditableBuffer xyVbo, GLEditableBuffer sVbo, int first, int count)
void	end(GlimpseContext context)
void	setAlpha(float alpha)
void	setAxisOrtho(GlimpseContext context, Axis2D axis)
void	setColors(float[][] colors)	The first dimension is the number of colors, the second is {elevation threshold, hue, saturation, brightness}.
void	setElevationTexUnit(int unit)
void	setHillshadeTexUnit(int unit)
void	setOrtho(GlimpseContext context, float xMin, float xMax, float yMin, float yMax)
void	setPixelOrtho(GlimpseContext context, GlimpseBounds bounds)

Methods inherited from class com.metsci.glimpse.core.gl.shader.GlimpseShaderProgram

addArrayData, addFragmentShader, addGeometryShader, addShader, addShader, addUniformData, addVertexShader, dispose, getShaderProgram, loadProgram, useProgram

Methods inherited from class java.lang.Object

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

Field Detail

MAX_COLORS

public static final int MAX_COLORS

See Also:

Constant Field Values

HILLSHADE_TEXTURE_UNIT

public static final int HILLSHADE_TEXTURE_UNIT

See Also:

Constant Field Values

ELEVATION_TEXTURE_UNIT

public static final int ELEVATION_TEXTURE_UNIT

See Also:

Constant Field Values

Constructor Detail

ShadedReliefProgram

public ShadedReliefProgram()

ShadedReliefProgram

public ShadedReliefProgram(int elevTexUnit,
                           int shadeTexUnit)

Method Detail

setAlpha

public void setAlpha(float alpha)

setElevationTexUnit

public void setElevationTexUnit(int unit)

setHillshadeTexUnit

public void setHillshadeTexUnit(int unit)

setColors

public void setColors(float[][] colors)

The first dimension is the number of colors, the second is {elevation threshold, hue, saturation, brightness}.

begin

public void begin(GlimpseContext context,
                  float xMin,
                  float xMax,
                  float yMin,
                  float yMax)

Specified by:

begin in interface DrawableTextureProgram

begin

public void begin(GlimpseContext context)

doUseProgram

public void doUseProgram(com.jogamp.opengl.GL gl,
                         boolean on)

setAxisOrtho

public void setAxisOrtho(GlimpseContext context,
                         Axis2D axis)

setPixelOrtho

public void setPixelOrtho(GlimpseContext context,
                          GlimpseBounds bounds)

setOrtho

public void setOrtho(GlimpseContext context,
                     float xMin,
                     float xMax,
                     float yMin,
                     float yMax)

draw

public void draw(GlimpseContext context,
                 int mode,
                 GLEditableBuffer xyVbo,
                 GLEditableBuffer sVbo,
                 int first,
                 int count)

Specified by:

draw in interface DrawableTextureProgram

draw

public void draw(GlimpseContext context,
                 int mode,
                 int xyVbo,
                 int sVbo,
                 int first,
                 int count)

Specified by:

draw in interface DrawableTextureProgram

end

public void end(GlimpseContext context)

Specified by:

end in interface DrawableTextureProgram

dispose

public void dispose(GlimpseContext context)

Specified by:

dispose in interface DrawableTextureProgram