Java VertexBuffer.getFormat方法代码示例

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
public static void optimize(Mesh mesh, boolean toFixed){
        // update any data that need updating
        mesh.updateBound();
        mesh.updateCounts();

        // set all buffers into STATIC_DRAW mode
        mesh.setStatic();

        if (mesh.getBuffer(Type.Index) != null){
            // compress index buffer from UShort to UByte (if possible)
            FloatToFixed.compressIndexBuffer(mesh);

            // generate triangle strips stitched with degenerate tris
            generateStrips(mesh, false, false, 16, 0);
        }

        IntMap<VertexBuffer> bufs = mesh.getBuffers();
        for (Entry<VertexBuffer> entry : bufs){
            VertexBuffer vb = entry.getValue();
            if (vb == null || vb.getBufferType() == Type.Index)
                continue;

             if (vb.getFormat() == Format.Float){
                if (vb.getBufferType() == Type.Color){
                    // convert the color buffer to UByte
                    vb = FloatToFixed.convertToUByte(vb);
                    vb.setNormalized(true);
                }else if (toFixed){
                    // convert normals, positions, and texcoords
                    // to fixed-point (16.16)
                    vb = FloatToFixed.convertToFixed(vb);
//                    vb = FloatToFixed.convertToFloat(vb);
                }
                mesh.clearBuffer(vb.getBufferType());
                mesh.setBuffer(vb);
            }
        }
        mesh.setInterleaved();
    }
 

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
public static void compressIndexBuffer(Mesh mesh){
    int vertCount = mesh.getVertexCount();
    VertexBuffer vb = mesh.getBuffer(Type.Index);
    Format targetFmt;
    if (vb.getFormat() == Format.UnsignedInt && vertCount <= 0xffff){
        if (vertCount <= 256)
            targetFmt = Format.UnsignedByte;
        else
            targetFmt = Format.UnsignedShort;
    }else if (vb.getFormat() == Format.UnsignedShort && vertCount <= 0xff){
        targetFmt = Format.UnsignedByte;
    }else{
        return;
    }

    IndexBuffer src = mesh.getIndexBuffer();
    Buffer newBuf = VertexBuffer.createBuffer(targetFmt, vb.getNumComponents(), src.size());

    VertexBuffer newVb = new VertexBuffer(Type.Index);
    newVb.setupData(vb.getUsage(), vb.getNumComponents(), targetFmt, newBuf);
    mesh.clearBuffer(Type.Index);
    mesh.setBuffer(newVb);

    IndexBuffer dst = mesh.getIndexBuffer();
    for (int i = 0; i < src.size(); i++){
        dst.put(i, src.get(i));
    }
}
 

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
public static VertexBuffer convertToFixed(VertexBuffer vb){
    if (vb.getFormat() == Format.Int)
        return vb;

    FloatBuffer fb = (FloatBuffer) vb.getData();
    IntBuffer ib = BufferUtils.createIntBuffer(fb.capacity());
    convertToFixed(fb, ib);

    VertexBuffer newVb = new VertexBuffer(vb.getBufferType());
    newVb.setupData(vb.getUsage(),
                    vb.getNumComponents(),
                    Format.Int,
                    ib);
    return newVb;
}
 

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
public static VertexBuffer convertToFloat(VertexBuffer vb){
    if (vb.getFormat() == Format.Float)
        return vb;

    IntBuffer ib = (IntBuffer) vb.getData();
    FloatBuffer fb = BufferUtils.createFloatBuffer(ib.capacity());
    convertToFloat(ib, fb);

    VertexBuffer newVb = new VertexBuffer(vb.getBufferType());
    newVb.setupData(vb.getUsage(),
                    vb.getNumComponents(),
                    Format.Float,
                    fb);
    return newVb;
}
 

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
/**
 * Creates a shared buffer from the specified vertex buffer
 * @param vertexBuffer the vertex buffer to use
 */
public SharedBuffer(VertexBuffer vertexBuffer) {
	this.jmeBuffer = vertexBuffer;
	this.format = vertexBuffer.getFormat();
	this.type = vertexBuffer.getBufferType();
	this.components = vertexBuffer.getNumComponents();
	this.size = vertexBuffer.getNumElements();
}
 

import com.jme3.scene.VertexBuffer; //导入方法依赖的package包/类
public static ColorRGBA getColor( Geometry geom, Vector3f pt, int index, Tweed tweed ) {
		
		MatParam param = geom.getMaterial().getParam( "DiffuseMap" );
		
		ImageRaster ir = ImageRaster.create( tweed.getAssetManager().loadTexture( ((Texture2D)param.getValue()).getName() ).getImage() );
    	
		Mesh mesh = geom.getMesh();
//		geom.getMaterial().getMaterialDef().
		
        VertexBuffer pb = mesh.getBuffer(Type.Position);
        VertexBuffer tb = mesh.getBuffer( Type.TexCoord );
        
        IndexBuffer  ib = mesh.getIndicesAsList();
        
        Vector2f uva = new Vector2f(), uvb = new Vector2f(), uvc = new Vector2f();
        Vector3f la  = new Vector3f(), lb  = new Vector3f(), lc  = new Vector3f();
        
        if (pb != null && pb.getFormat() == Format.Float && pb.getNumComponents() == 3) {
        	
            FloatBuffer fpb = (FloatBuffer) pb.getData();
            FloatBuffer ftb = (FloatBuffer) tb.getData();

            // aquire triangle's vertex indices
            int vertIndex = index * 3;
            
            int va = ib.get(vertIndex);
            int vb = ib.get(vertIndex+1);
            int vc = ib.get(vertIndex+2);
            
            BufferUtils.populateFromBuffer( la, fpb, va );
            BufferUtils.populateFromBuffer( lb, fpb, vb );
            BufferUtils.populateFromBuffer( lc, fpb, vc );
            
            BufferUtils.populateFromBuffer( uva, ftb, va );
            BufferUtils.populateFromBuffer( uvb, ftb, vb );
            BufferUtils.populateFromBuffer( uvc, ftb, vc );
            
//            PaintThing.debug.put(1, new Line ( la.x, la.z, lb.x, lb.z) );
//            PaintThing.debug.put(2, new Line ( lb.x, lb.z, lc.x, lc.z) );
//            PaintThing.debug.put(3, new Line ( lc.x, lc.z, la.x, la.z) );
            
            float[] bary = barycentric( pt, la, lb, lc );
            
            int x = (int)( ( uva.x * bary[0] + uvb.x * bary[1] + uvc.x * bary[2] ) * ir.getWidth ()) ,
            	y = (int)( ( uva.y * bary[0] + uvb.y * bary[1] + uvc.y * bary[2] ) * ir.getHeight()) ;
            
            ColorRGBA out = ir.getPixel( x, y );//ir.getHeight() - y -1 );

//            for (Pair<Vector3f, Vector2f> pair : new Pair[]{ new Pair( la, uva), new Pair (lb, uvb), new Pair (lc, uvc)}) {
//            	
//            	int xx = (int)(pair.second().x * ir.getWidth () ),
//            	    yy = (int)(pair.second().y * ir.getHeight() );
//            	
//            	System.out.println("xx "+xx+" yy "+ yy );
//            	
//            	ColorRGBA o = ir.getPixel( 
//            			xx,
//            			yy );
//            	
//            	PaintThing.debug.put(1, new ColPt( pair.first().x, pair.first().z, o.r, o.g, o.b ));
//            }
            
//            System.out.println("<< "+ ((Texture2D)param.getValue()).getName());
//			System.out.println( x + " " + y + " :: " + bary[ 0 ] + " " + bary[ 1 ] + " " + bary[ 2 ] + 
//					" --> " + out.r + "," + out.g + "," + out.b );
            
            return out;
            
        }else{
        	
            throw new UnsupportedOperationException("Position buffer not set or has incompatible format");
        }
    }