Java Code Examples for com.jme3.scene.VertexBuffer.Format#Float

The following examples show how to use com.jme3.scene.VertexBuffer.Format#Float . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Mesh.java    From MikuMikuStudio with BSD 2-Clause "Simplified" License 6 votes vote down vote up 
/**
 * Gets the triangle vertex positions at the given triangle index 
 * and stores them into the v1, v2, v3 arguments.
 * 
 * @param index The index of the triangle. 
 * Should be between 0 and {@link #getTriangleCount()}.
 * 
 * @param v1 Vector to contain first vertex position
 * @param v2 Vector to contain second vertex position
 * @param v3 Vector to contain third vertex position
 */
public void getTriangle(int index, Vector3f v1, Vector3f v2, Vector3f v3){
    VertexBuffer pb = getBuffer(Type.Position);
    IndexBuffer ib = getIndicesAsList();
    if (pb != null && pb.getFormat() == Format.Float && pb.getNumComponents() == 3){
        FloatBuffer fpb = (FloatBuffer) pb.getData();

        // aquire triangle's vertex indices
        int vertIndex = index * 3;
        int vert1 = ib.get(vertIndex);
        int vert2 = ib.get(vertIndex+1);
        int vert3 = ib.get(vertIndex+2);

        BufferUtils.populateFromBuffer(v1, fpb, vert1);
        BufferUtils.populateFromBuffer(v2, fpb, vert2);
        BufferUtils.populateFromBuffer(v3, fpb, vert3);
    }else{
        throw new UnsupportedOperationException("Position buffer not set or "
                                              + " has incompatible format");
    }
}
Example 2
Source File: ModelConverter.java    From MikuMikuStudio with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
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();
    }
Example 3
Source File: FloatToFixed.java    From MikuMikuStudio with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
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;
}