meshoperator.java

来自「JSR184的一个小游戏」· Java 代码 · 共 37 行

import javax.microedition.m3g.CompositingMode;
import javax.microedition.m3g.Mesh;
/**
 * Performs some basic operations on Mesh objects
 */
public class MeshOperator
{
    /** Sets the alpha blending of a mesh. Only meaningful if the mesh already is alpha blended */
    public static void setMeshAlpha(Mesh m, int alpha)
    {
        m.getVertexBuffer().setDefaultColor(alpha);
    }
    
    /**
     * 
     * @param m The mesh to convert to a blended one
     * @param alpha The alpha color to blend with
     * @param textureBlending The texture blending parameter.
     */
    public static void convertToBlended(Mesh m, int alpha, int textureBlending)
    {
        // Set the alpha
        setMeshAlpha(m, alpha);
        
        // Fix the compositing mode
        CompositingMode cm = new CompositingMode();
        cm.setBlending(CompositingMode.ALPHA);
        m.getAppearance(0).setCompositingMode(cm);
        m.getAppearance(0).getTexture(0).setBlending(textureBlending);
    }
    
    public static void setPerspectiveCorrection(Mesh m, boolean on)
    {
        m.getAppearance(0).getPolygonMode().setPerspectiveCorrectionEnable(on);
    }
}