199 lines
5.3 KiB
Java
199 lines
5.3 KiB
Java
/*
|
|
* Copyright (c) 2002-2004 LWJGL Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* * Neither the name of 'LWJGL' nor the names of
|
|
* its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
package org.lwjgl.opengl.glu;
|
|
|
|
import org.lwjgl.opengl.GL11;
|
|
|
|
/**
|
|
* Quadric.java
|
|
*
|
|
*
|
|
* Created 22-dec-2003
|
|
* @author Erik Duijs
|
|
*/
|
|
public class Quadric {
|
|
|
|
protected int drawStyle;
|
|
protected int orientation;
|
|
protected boolean textureFlag;
|
|
protected int normals;
|
|
|
|
/**
|
|
* Constructor for Quadric.
|
|
*/
|
|
public Quadric() {
|
|
super();
|
|
|
|
drawStyle = GLU.GLU_FILL;
|
|
orientation = GLU.GLU_OUTSIDE;
|
|
textureFlag = false;
|
|
normals = GLU.GLU_SMOOTH;
|
|
}
|
|
|
|
/**
|
|
* Call glNormal3f after scaling normal to unit length.
|
|
*
|
|
* @param x
|
|
* @param y
|
|
* @param z
|
|
*/
|
|
protected void normal3f(float x, float y, float z) {
|
|
float mag;
|
|
|
|
mag = (float)Math.sqrt(x * x + y * y + z * z);
|
|
if (mag > 0.00001F) {
|
|
x /= mag;
|
|
y /= mag;
|
|
z /= mag;
|
|
}
|
|
GL11.glNormal3f(x, y, z);
|
|
}
|
|
|
|
/**
|
|
* specifies the draw style for quadrics.
|
|
*
|
|
* The legal values are as follows:
|
|
*
|
|
* GLU.FILL: Quadrics are rendered with polygon primitives. The polygons
|
|
* are drawn in a counterclockwise fashion with respect to
|
|
* their normals (as defined with glu.quadricOrientation).
|
|
*
|
|
* GLU.LINE: Quadrics are rendered as a set of lines.
|
|
*
|
|
* GLU.SILHOUETTE: Quadrics are rendered as a set of lines, except that edges
|
|
* separating coplanar faces will not be drawn.
|
|
*
|
|
* GLU.POINT: Quadrics are rendered as a set of points.
|
|
*
|
|
* @param drawStyle The drawStyle to set
|
|
*/
|
|
public void setDrawStyle(int drawStyle) {
|
|
this.drawStyle = drawStyle;
|
|
}
|
|
|
|
/**
|
|
* specifies what kind of normals are desired for quadrics.
|
|
* The legal values are as follows:
|
|
*
|
|
* GLU.NONE: No normals are generated.
|
|
*
|
|
* GLU.FLAT: One normal is generated for every facet of a quadric.
|
|
*
|
|
* GLU.SMOOTH: One normal is generated for every vertex of a quadric. This
|
|
* is the default.
|
|
*
|
|
* @param normals The normals to set
|
|
*/
|
|
public void setNormals(int normals) {
|
|
this.normals = normals;
|
|
}
|
|
|
|
/**
|
|
* specifies what kind of orientation is desired for.
|
|
* The orientation values are as follows:
|
|
*
|
|
* GLU.OUTSIDE: Quadrics are drawn with normals pointing outward.
|
|
*
|
|
* GLU.INSIDE: Normals point inward. The default is GLU.OUTSIDE.
|
|
*
|
|
* Note that the interpretation of outward and inward depends on the quadric
|
|
* being drawn.
|
|
*
|
|
* @param orientation The orientation to set
|
|
*/
|
|
public void setOrientation(int orientation) {
|
|
this.orientation = orientation;
|
|
}
|
|
|
|
/**
|
|
* specifies if texture coordinates should be generated for
|
|
* quadrics rendered with qobj. If the value of textureCoords is true,
|
|
* then texture coordinates are generated, and if textureCoords is false,
|
|
* they are not.. The default is false.
|
|
*
|
|
* The manner in which texture coordinates are generated depends upon the
|
|
* specific quadric rendered.
|
|
*
|
|
* @param textureFlag The textureFlag to set
|
|
*/
|
|
public void setTextureFlag(boolean textureFlag) {
|
|
this.textureFlag = textureFlag;
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the drawStyle.
|
|
* @return int
|
|
*/
|
|
public int getDrawStyle() {
|
|
return drawStyle;
|
|
}
|
|
|
|
/**
|
|
* Returns the normals.
|
|
* @return int
|
|
*/
|
|
public int getNormals() {
|
|
return normals;
|
|
}
|
|
|
|
/**
|
|
* Returns the orientation.
|
|
* @return int
|
|
*/
|
|
public int getOrientation() {
|
|
return orientation;
|
|
}
|
|
|
|
/**
|
|
* Returns the textureFlag.
|
|
* @return boolean
|
|
*/
|
|
public boolean getTextureFlag() {
|
|
return textureFlag;
|
|
}
|
|
|
|
protected void TXTR_COORD(float x, float y) {
|
|
if (textureFlag) GL11.glTexCoord2f(x,y);
|
|
}
|
|
|
|
|
|
protected float sin(float r) {
|
|
return (float)Math.sin(r);
|
|
}
|
|
|
|
protected float cos(float r) {
|
|
return (float)Math.cos(r);
|
|
}
|
|
|
|
}
|