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");
}
@Override
public void init(GLAutoDrawable glad) {
GL3 gl3 = glad.getGL().getGL3();
try {
shaders.add(
GLSLHelpers.createShader(gl3, getClass(), GL3.GL_VERTEX_SHADER, "glsl/simple_vs"));
shaders.add(
GLSLHelpers.createShader(gl3, getClass(), GL3.GL_FRAGMENT_SHADER, "glsl/simple_fs"));
program = GLSLHelpers.createProgram(gl3, shaders);
gl3.glGenVertexArrays(1, VAO, 0);
gl3.glBindVertexArray(VAO[0]);
gl3.glGenBuffers(1, VBO, 0);
gl3.glBindBuffer(GL3.GL_ARRAY_BUFFER, VBO[0]);
FloatBuffer buffer = GLBuffers.newDirectFloatBuffer(TRIANGLE);
gl3.glBufferData(GL3.GL_ARRAY_BUFFER, buffer.capacity() * 4, buffer, GL3.GL_STATIC_DRAW);
gl3.glEnableVertexAttribArray(0);
gl3.glVertexAttribPointer(0, 2, GL3.GL_FLOAT, false, 0, 0);
gl3.glBindVertexArray(0);
} catch (Throwable t) {
t.printStackTrace();
}
}
private boolean initBuffer(GL3 gl3) {
FloatBuffer vertexBuffer = GLBuffers.newDirectFloatBuffer(vertexData);
gl3.glGenBuffers(1, bufferName);
gl3.glBindBuffer(GL_ARRAY_BUFFER, bufferName.get(0));
gl3.glBufferData(GL_ARRAY_BUFFER, vertexSize, vertexBuffer, GL_STATIC_DRAW);
gl3.glBindBuffer(GL_ARRAY_BUFFER, 0);
BufferUtils.destroyDirectBuffer(vertexBuffer);
return checkError(gl3, "initBuffer");
}
private void initBuffers(GL3 gl3) {
FloatBuffer vertexBuffer = GLBuffers.newDirectFloatBuffer(vertexData);
ShortBuffer elementBuffer = GLBuffers.newDirectShortBuffer(elementData);
gl3.glGenBuffers(Buffer.MAX, bufferName);
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.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);
BufferUtils.destroyDirectBuffer(vertexBuffer);
BufferUtils.destroyDirectBuffer(elementBuffer);
checkError(gl3, "initBuffers");
}