private void buildLeavesVBO(GL gl) {
// Allocate buffer memory
FloatBuffer leafVertexBuffer = BufferUtil.newFloatBuffer(81 * 6 * 3);
FloatBuffer leafTextureBuffer = BufferUtil.newFloatBuffer(81 * 6 * 2);
nLeafVertices = tree.createLeavesVBO(leafVertexBuffer, leafTextureBuffer);
leafVertexBuffer.flip();
leafTextureBuffer.flip();
// Create VBO Id
if (branchVBOIds[0] != 0) {
gl.glDeleteBuffersARB(2, leafVBOIds, 0);
}
gl.glGenBuffersARB(2, leafVBOIds, 0); // Get Valid Names
// Load buffer into graphics card memory
// Vertex coordinates
gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, leafVBOIds[0]); // Bind The Buffer
gl.glBufferDataARB(
GL.GL_ARRAY_BUFFER_ARB,
nLeafVertices * 3 * BufferUtil.SIZEOF_FLOAT,
leafVertexBuffer,
GL.GL_STATIC_DRAW_ARB);
gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, leafVBOIds[1]);
gl.glBufferDataARB(
GL.GL_ARRAY_BUFFER_ARB,
nLeafVertices * 2 * BufferUtil.SIZEOF_FLOAT,
leafTextureBuffer,
GL.GL_STATIC_DRAW_ARB);
leafVertexBuffer = null;
leafTextureBuffer = null;
}
public static void deleteGLResource(int id, int type) {
if (type == GL_TEXTURE_OBJECT) {
if (glTextureObjects.contains(id)) {
int[] temp = {id};
gl.glDeleteTextures(1, temp, 0);
glTextureObjects.remove(id);
}
} else if (type == GL_VERTEX_BUFFER) {
if (glVertexBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteBuffersARB(1, temp, 0);
glVertexBuffers.remove(id);
}
} else if (type == GL_FRAME_BUFFER) {
if (glFrameBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteFramebuffersEXT(1, temp, 0);
glFrameBuffers.remove(id);
}
} else if (type == GL_RENDER_BUFFER) {
if (glRenderBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteRenderbuffersEXT(1, temp, 0);
glRenderBuffers.remove(id);
}
} else if (type == GLSL_PROGRAM) {
if (glslPrograms.contains(id)) {
gl.glDeleteProgram(id);
glslPrograms.remove(id);
}
} else if (type == GLSL_SHADER) {
if (glslShaders.contains(id)) {
gl.glDeleteShader(id);
glslShaders.remove(id);
}
}
}
private void buildBranchVBO(GL gl) {
// Allocate buffer memory
FloatBuffer branchVertices =
BufferUtil.newFloatBuffer(
40 * 24 * 3); // 40 branches, 24 vertices per branch, 3 coordinates per vertex
FloatBuffer normalBuffer = BufferUtil.newFloatBuffer(40 * 24 * 3);
FloatBuffer textureCoordBuffer = BufferUtil.newFloatBuffer(40 * 24 * 2);
// FloatBuffer branchAttributes = BufferUtil.newFloatBuffer(40 * 24 * 4);
// FloatBuffer branchBaseCenters = BufferUtil.newFloatBuffer(40 * 24 * 3);
// FloatBuffer branchTransformationsRow1 = BufferUtil.newFloatBuffer(40 * 24 * 4);
// FloatBuffer branchTransformationsRow2 = BufferUtil.newFloatBuffer(40 * 24 * 4);
// FloatBuffer branchTransformationsRow3 = BufferUtil.newFloatBuffer(40 * 24 * 4);
// FloatBuffer branchTransformationsRow4 = BufferUtil.newFloatBuffer(40 * 24 * 4);
// FloatBuffer colorBuffer = BufferUtil.newFloatBuffer(40 * 24 * 4);
if (tree.needsGeometryCreation()) {
// Create the tree - creates child branches and leaves and adds vertices to the buffer
nBranchVertices = tree.create(branchVertices, normalBuffer, textureCoordBuffer);
// branchAttributes, branchBaseCenters, branchTransformationsRow1,
// branchTransformationsRow2, branchTransformationsRow3, branchTransformationsRow4);
} else { // hasFreshlyGrown returns true here
// Grow the tree - updates bounding box of each branch and adds vertices to the buffer
// System.out.println("Calling trunk.grow()");
nBranchVertices = tree.grow(branchVertices, normalBuffer, textureCoordBuffer);
// branchAttributes, branchBaseCenters, branchTransformationsRow1,
// branchTransformationsRow2, branchTransformationsRow3, branchTransformationsRow4);
}
branchVertices.flip();
normalBuffer.flip();
textureCoordBuffer.flip();
// branchAttributes.flip();
// branchBaseCenters.flip();
// branchTransformationsRow1.flip();
// branchTransformationsRow2.flip();
// branchTransformationsRow3.flip();
// branchTransformationsRow4.flip();
// Create VBO Id
if (branchVBOIds[0] != 0) {
gl.glDeleteBuffersARB(1, branchVBOIds, 0);
}
// System.out.println("branchVBOIds[2] = " + branchVBOIds[2]);
gl.glGenBuffersARB(1, branchVBOIds, 0); // Get Valid Names
// Load buffer into graphics card memory
// Vertex coordinates
gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[0]); // Bind The Buffer
gl.glBufferDataARB(
GL.GL_ARRAY_BUFFER_ARB,
nBranchVertices * 3 * BufferUtil.SIZEOF_FLOAT,
branchVertices,
GL.GL_STATIC_DRAW_ARB);
// //Vertex attributes
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[1]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchAttributes, GL.GL_STATIC_DRAW_ARB);
//
// //branch base centers
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[2]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 3 *
// BufferUtil.SIZEOF_FLOAT, branchBaseCenters, GL.GL_STATIC_DRAW_ARB);
//
// //branch transformations
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[3]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow1, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[4]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow2, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[5]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow3, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[6]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow4, GL.GL_STATIC_DRAW_ARB);
// Our Copy Of The Data Is No Longer Necessary, It Is Safe In The Graphics Card
branchVertices = null;
textureCoordBuffer = null;
// branchAttributes = null;
// branchBaseCenters = null;
// branchTransformationsRow1 = null;
// branchTransformationsRow2 = null;
// branchTransformationsRow3 = null;
// branchTransformationsRow4 = null;
// colorBuffer = null;
}
private void buildHeapVBO(GL gl) {
// Allocate buffer memory
FloatBuffer branchVertices =
BufferUtil.newFloatBuffer(
24 * 3); // 1 bounding box of heap, 24 vertices of the box, 3 coordinates per vertex
FloatBuffer textureCoordBuffer = BufferUtil.newFloatBuffer(24 * 3);
// FloatBuffer branchAttributes = BufferUtil.newFloatBuffer(24 * 4);
// FloatBuffer branchBaseCenters = BufferUtil.newFloatBuffer(24 * 3);
// FloatBuffer branchTransformationsRow1 = BufferUtil.newFloatBuffer(24 * 4);
// FloatBuffer branchTransformationsRow2 = BufferUtil.newFloatBuffer(24 * 4);
// FloatBuffer branchTransformationsRow3 = BufferUtil.newFloatBuffer(24 * 4);
// FloatBuffer branchTransformationsRow4 = BufferUtil.newFloatBuffer(24 * 4);
// Create bounding box for the heap
nBranchVertices = tree.createHeapBoundingBox(branchVertices, textureCoordBuffer);
// branchAttributes, branchBaseCenters, branchTransformationsRow1, branchTransformationsRow2,
// branchTransformationsRow3, branchTransformationsRow4);
branchVertices.flip();
textureCoordBuffer.flip();
// branchAttributes.flip();
// branchBaseCenters.flip();
// branchTransformationsRow1.flip();
// branchTransformationsRow2.flip();
// branchTransformationsRow3.flip();
// branchTransformationsRow4.flip();
if (branchVBOIds[0] != 0) {
gl.glDeleteBuffersARB(1, branchVBOIds, 0);
}
// Create VBO Id
gl.glGenBuffersARB(1, branchVBOIds, 0); // Get Valid Names
// Load buffer into graphics card memory
// Vertex coordinates
gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[0]); // Bind The Buffer
gl.glBufferDataARB(
GL.GL_ARRAY_BUFFER_ARB,
nBranchVertices * 3 * BufferUtil.SIZEOF_FLOAT,
branchVertices,
GL.GL_STATIC_DRAW_ARB);
// //Vertex attributes
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[1]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchAttributes, GL.GL_STATIC_DRAW_ARB);
//
// //branch base centers
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[2]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 3 *
// BufferUtil.SIZEOF_FLOAT, branchBaseCenters, GL.GL_STATIC_DRAW_ARB);
//
// //branch transformations
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[3]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow1, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[4]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow2, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[5]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow3, GL.GL_STATIC_DRAW_ARB);
//
// gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, branchVBOIds[6]);
// gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, nBranchVertices * 4 *
// BufferUtil.SIZEOF_FLOAT, branchTransformationsRow4, GL.GL_STATIC_DRAW_ARB);
// Our Copy Of The Data Is No Longer Necessary, It Is Safe In The Graphics Card
branchVertices = null;
textureCoordBuffer = null;
// branchAttributes = null;
// branchBaseCenters = null;
// branchTransformationsRow1 = null;
// branchTransformationsRow2 = null;
// branchTransformationsRow3 = null;
// branchTransformationsRow4 = null;
}
// Releases any remaining OpenGL resources (including CG resources).
public static void deleteAllGLResources() {
if (!glTextureObjects.isEmpty()) {
Object[] glids = glTextureObjects.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteTextures(1, temp, 0);
}
glTextureObjects.clear();
}
if (!glVertexBuffers.isEmpty()) {
Object[] glids = glVertexBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteBuffersARB(1, temp, 0);
}
glVertexBuffers.clear();
}
if (!glFrameBuffers.isEmpty()) {
Object[] glids = glFrameBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteFramebuffersEXT(1, temp, 0);
}
glFrameBuffers.clear();
}
if (!glRenderBuffers.isEmpty()) {
Object[] glids = glRenderBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteRenderbuffersEXT(1, temp, 0);
}
glRenderBuffers.clear();
}
if (!glslPrograms.isEmpty()) {
Object[] glids = glslPrograms.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
gl.glDeleteProgram(id);
}
glslPrograms.clear();
}
if (!glslShaders.isEmpty()) {
Object[] glids = glslShaders.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
gl.glDeleteShader(id);
}
glslShaders.clear();
}
if (!cgContexts.isEmpty()) {
Object[] glids = cgContexts.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyContext((CGcontext) id);
}
cgContexts.clear();
}
if (!cgPrograms.isEmpty()) {
Object[] glids = cgPrograms.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyProgram((CGprogram) id);
}
cgPrograms.clear();
}
if (!cgEffects.isEmpty()) {
Object[] glids = cgEffects.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyEffect((CGeffect) id);
}
cgEffects.clear();
}
}