public void setupBuffers(GL4 gl, int[] vbo, int index) {
this.vbo = vbo;
this.index = index;
Vertex3D[] vertices = myShape.getVertices();
int[] indices = myShape.getIndices();
float[] fvalues = new float[indices.length * 3];
float[] tvalues = new float[indices.length * 2];
float[] nvalues = new float[indices.length * 3];
for (int i = 0; i < indices.length; i++) {
fvalues[i * 3] = (float) (vertices[indices[i]]).getX();
fvalues[i * 3 + 1] = (float) (vertices[indices[i]]).getY();
fvalues[i * 3 + 2] = (float) (vertices[indices[i]]).getZ();
tvalues[i * 2] = (float) (vertices[indices[i]]).getS();
tvalues[i * 2 + 1] = (float) (vertices[indices[i]]).getT();
nvalues[i * 3] = (float) (vertices[indices[i]]).getNormalX();
nvalues[i * 3 + 1] = (float) (vertices[indices[i]]).getNormalY();
nvalues[i * 3 + 2] = (float) (vertices[indices[i]]).getNormalZ();
}
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vbo[index++]);
FloatBuffer vertBuf = FloatBuffer.wrap(fvalues);
gl.glBufferData(GL.GL_ARRAY_BUFFER, vertBuf.limit() * 4, vertBuf, GL.GL_STATIC_DRAW);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vbo[index++]);
FloatBuffer texBuf = FloatBuffer.wrap(tvalues);
gl.glBufferData(GL.GL_ARRAY_BUFFER, texBuf.limit() * 4, texBuf, GL.GL_STATIC_DRAW);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vbo[index++]);
FloatBuffer norBuf = FloatBuffer.wrap(nvalues);
gl.glBufferData(GL.GL_ARRAY_BUFFER, norBuf.limit() * 4, norBuf, GL.GL_STATIC_DRAW);
}
private boolean initBuffer(GL4 gl4) {
boolean validated = true;
gl4.glGenBuffers(Buffer.MAX, bufferName);
gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferName.get(Buffer.ELEMENT));
ShortBuffer elementBuffer = GLBuffers.newDirectShortBuffer(elementData);
gl4.glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementSize, elementBuffer, GL_STATIC_DRAW);
BufferUtils.destroyDirectBuffer(elementBuffer);
gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
gl4.glBindBuffer(GL_ARRAY_BUFFER, bufferName.get(Buffer.VERTEX));
FloatBuffer vertexBuffer = GLBuffers.newDirectFloatBuffer(vertexData);
gl4.glBufferData(GL_ARRAY_BUFFER, vertexSize, vertexBuffer, GL_STATIC_DRAW);
BufferUtils.destroyDirectBuffer(vertexBuffer);
gl4.glBindBuffer(GL_ARRAY_BUFFER, 0);
int[] uniformBufferOffset = {0};
gl4.glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, uniformBufferOffset, 0);
int uniformBlockSize = Math.max(Mat4.SIZE, uniformBufferOffset[0]);
gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
gl4.glBufferData(GL_UNIFORM_BUFFER, uniformBlockSize, null, GL_DYNAMIC_DRAW);
gl4.glBindBuffer(GL_UNIFORM_BUFFER, 0);
return validated;
}
private boolean initVertexBuffer(GL4 gl4) {
gl4.glGenBuffers(Buffer.MAX.ordinal(), bufferName, 0);
gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferName[Buffer.ELEMENT.ordinal()]);
ShortBuffer elementBuffer = GLBuffers.newDirectShortBuffer(elementData);
gl4.glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementSize, elementBuffer, GL_STATIC_DRAW);
gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
gl4.glBindBuffer(GL_ARRAY_BUFFER, bufferName[Buffer.F64.ordinal()]);
DoubleBuffer positionBuffer = GLBuffers.newDirectDoubleBuffer(positionData);
gl4.glBufferData(GL_ARRAY_BUFFER, positionSize, positionBuffer, GL_STATIC_DRAW);
gl4.glBindBuffer(GL_ARRAY_BUFFER, 0);
return checkError(gl4, "initArrayBuffer");
}
public void allocate(
long theBytes, GLDataAccesFrequency theAccessFrequency, GLDataAccesNature theAccessNature) {
GL4 gl = GLGraphics.currentGL();
gl.glBufferData(
GL.GL_ARRAY_BUFFER,
theBytes,
null,
getAcessFrequencyNature(theAccessFrequency, theAccessNature));
}
/**
* Creates and initializes a buffer object's data store. Creates a new data store for the buffer
* object currently bound to target. Any pre-existing data store is deleted. The new data store is
* created with the specified size in bytes and usage. If data is not <code>null</code>, the data
* store is initialized with data from this Buffer. In its initial state, the new data store is
* not mapped, it has a <code>null</code> mapped pointer, and its mapped access is GL_READ_WRITE.
*
* <p>usage is a hint to the GL implementation as to how a buffer object's data store will be
* accessed. This enables the GL implementation to make more intelligent decisions that may
* significantly impact buffer object performance. It does not, however, constrain the actual
* usage of the data store. usage can be broken down into two parts: first, the frequency of
* access (modification and usage), and second, the nature of that access.
*
* @param theSize Specifies the size in bytes of the buffer object's new data store.
* @param theData Specifies a Buffer with data that will be copied into the data store for
* initialization, or null if no data is to be copied.
* @param theAccessFrequency The frequency of gl data access
* @param theAccessNature The nature of gl data access
*/
public void data(
long theSize,
Buffer theData,
GLDataAccesFrequency theAccessFrequency,
GLDataAccesNature theAccessNature) {
GL4 gl = GLGraphics.currentGL();
gl.glBufferData(
_myTarget.glID,
theSize,
theData,
getAcessFrequencyNature(theAccessFrequency, theAccessNature));
_mySize = theSize;
}
