private boolean initBuffer(GL3 gl3) {
ShortBuffer elementBuffer = GLBuffers.newDirectShortBuffer(elementData);
FloatBuffer vertexBuffer = GLBuffers.newDirectFloatBuffer(vertexData);
IntBuffer uniformBufferOffset = GLBuffers.newDirectIntBuffer(1);
gl3.glGenBuffers(Buffer.MAX, bufferName);
gl3.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferName.get(Buffer.ELEMENT));
gl3.glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementSize, elementBuffer, GL_STATIC_DRAW);
gl3.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
gl3.glBindBuffer(GL_ARRAY_BUFFER, bufferName.get(Buffer.VERTEX));
gl3.glBufferData(GL_ARRAY_BUFFER, vertexSize, vertexBuffer, GL_STATIC_DRAW);
gl3.glBindBuffer(GL_ARRAY_BUFFER, 0);
gl3.glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, uniformBufferOffset);
int uniformBlockSize = Math.max(Mat4.SIZE, uniformBufferOffset.get(0));
gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
gl3.glBufferData(GL_UNIFORM_BUFFER, uniformBlockSize, null, GL_DYNAMIC_DRAW);
gl3.glBindBuffer(GL_UNIFORM_BUFFER, 0);
BufferUtils.destroyDirectBuffer(elementBuffer);
BufferUtils.destroyDirectBuffer(vertexBuffer);
BufferUtils.destroyDirectBuffer(uniformBufferOffset);
return checkError(gl3, "initBuffer");
}
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;
}