Example usage for org.lwjgl.opengl GL15 GL_ARRAY_BUFFER

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL15 GL_ARRAY_BUFFER.

Prototype

int GL_ARRAY_BUFFER

To view the source code for org.lwjgl.opengl GL15 GL_ARRAY_BUFFER.

Click Source Link

Document

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferParameteriv, and GetBufferPointerv.

Usage

From source file:model.ModelMD2.java

@Override
public void destroy() {
    //Delete VAO/*  w  w  w .j a v a  2s  .  c  o  m*/
    GL30.glBindVertexArray(vao_id);
    {
        for (int i = 0; i < 6; i++) {
            GL20.glDisableVertexAttribArray(i);
        }

        //Delete VBOs
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
        for (int i = 0; i < frame_ids.length; i++) {
            GL15.glDeleteBuffers(frame_ids[i]);
        }
    }
    GL30.glBindVertexArray(0);
    GL30.glDeleteVertexArrays(vao_id);
    GL11.glDeleteTextures(tex_id);
}

---

From source file:model.ModelMD2.java

@Override
public void draw(float frame, float[] vpMatrix, float[] matrix, RenderEngine engine) {
    if (frame < 0 || frame > header.num_frames - 1)
        return;/* w ww  . j  a  v a2s.  co  m*/

    //Select current frame and next
    int frame_0 = frame_ids[(int) Math.floor(frame)];

    int frame_1 = frame_ids[(int) Math.min(Math.ceil(frame), header.num_frames - 1)];
    //Upload frame interpolation

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, tex_id);

    ShaderUtils.useProgram(shader_id);
    {
        //Upload uniform values
        ShaderUtils.setUniformMatrix4(shader_id, "viewprojMatrix", vpMatrix);
        ShaderUtils.setUniformMatrix4(shader_id, "modelMatrix", matrix);
        ShaderUtils.setUniformVar(shader_id, "frame_interpolated", (float) (frame - Math.floor(frame)));
        //ShaderUtils.setUniformVar(shader_id, "cameraDir", engine.camera.yaw, engine.camera.pitch, engine.camera.roll);
        //Bind frames to VAO
        GL30.glBindVertexArray(vao_id);
        {

            GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, frame_0);//Bind frame 0
            {
                GL20.glVertexAttribPointer(0, 3, GL11.GL_FLOAT, false, 32, 0);
                GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, 32, 12);
                GL20.glVertexAttribPointer(2, 3, GL11.GL_FLOAT, false, 32, 20);
            }
            GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

            GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, frame_1);//Bind frame 1
            {
                GL20.glVertexAttribPointer(3, 3, GL11.GL_FLOAT, false, 32, 0);
                GL20.glVertexAttribPointer(4, 2, GL11.GL_FLOAT, false, 32, 12);
                GL20.glVertexAttribPointer(5, 3, GL11.GL_FLOAT, false, 32, 20);
            }

            GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

            //Enable attribs and render
            for (int i = 0; i < 6; i++) {
                GL20.glEnableVertexAttribArray(i);
            }
            {
                GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, header.num_tris * 3);
            }
            for (int i = 0; i < 6; i++) {
                GL20.glDisableVertexAttribArray(i);
            }

        }
        GL30.glBindVertexArray(0);
    }
    ShaderUtils.useProgram(0);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
}

---

From source file:model.ModelMD2.java

public void compileVBO() {
    frame_ids = new int[header.num_frames];
    ArrayList<float[]> data = new ArrayList<float[]>();
    for (int currentFrame = 0; currentFrame < header.num_frames; currentFrame++) {
        MD2_Frame frame = frames[currentFrame];// Current frame
        for (int currentTriangle = 0; currentTriangle < header.num_tris; currentTriangle++) {
            for (int j = 0; j < 3; j++) {
                float[] temp = new float[8];
                //Extract position from vertex array using triangles vertex index
                MD2_Vertex vertex = frame.vertices[triangles[currentTriangle].vertexIndex[j]];
                //For MD2 format/exporter Z is up, swap Z and Y for OGL
                temp[0] = vertex.v[1];//w  w  w.  ja  v a  2 s  .  c  o  m
                temp[1] = vertex.v[2];
                temp[2] = vertex.v[0];

                //Extract texture coords from st array using triangle texture index
                float s = (float) (textureCoords[triangles[currentTriangle].textureIndex[j]].s / 256f);
                float t = (float) (textureCoords[triangles[currentTriangle].textureIndex[j]].t / 256f);
                temp[3] = s;
                temp[4] = t;

                //Normals, why hardcoded?
                int index = frame.vertices[triangles[currentTriangle].vertexIndex[j]].lightNormalIndex;
                //Some models seems to use a different normal array and doesn't work with Quake II normals
                if (index < normals.length) {
                    float[] n = normals[index];
                    temp[5] = n[0];
                    temp[6] = n[2];
                    temp[7] = n[1];
                }

                data.add(temp);//Add vertex data
            }
        }
        //Put data into floatbuffer
        ByteBuffer verticesByteBuffer = BufferUtils.createByteBuffer(data.size() * 32);
        FloatBuffer verticesFloatBuffer = verticesByteBuffer.asFloatBuffer();
        for (int i = 0; i < data.size(); i++) {
            // Add position, normal and texture floats to the buffer
            verticesFloatBuffer.put(data.get(i));
        }
        verticesFloatBuffer.flip();

        //Put data into its vbo
        int id = GL15.glGenBuffers();
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, id);
        {
            GL15.glBufferData(GL15.GL_ARRAY_BUFFER, verticesFloatBuffer, GL15.GL_STATIC_DRAW);
        }
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

        //Clear data for next frame
        data.clear();

        //Save frame id
        frame_ids[currentFrame] = id;
    }
    GLUtil.cerror(getClass().getName() + " compileVBO");
}

---

From source file:net.kubin.rendering.ChunkMeshBuilder.java

License:Apache License

public static void generateChunkMesh(Chunk chunk, MeshType meshType) {
    if (DEBUG) {// w  w w.j a  va  2 s  . c  om
        System.out.println("Building " + meshType.name() + " Mesh for " + chunk.toString() + "...");
    }

    /* Make sure there are no list edits anymore */
    chunk.performListChanges();

    ChunkMesh mesh = chunk.getMesh();
    mesh.destroy(meshType);

    /* Compute vertex count */
    int vertexCount = chunk.getVertexCount(meshType);

    if (DEBUG) {
        System.out.println("\tVertex Count = " + vertexCount);
    }

    /*
     * If there are no faces visible yet (because of generating busy), don't
     * create a buffer
     */
    if (vertexCount == 0) {
        return;
    }

    mesh.setVertexCount(meshType, vertexCount);

    /* Create a buffer */
    int vbo = BufferManager.getInstance().createBuffer();
    mesh.setVBO(meshType, vbo);

    /* Bind the buffer */
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vbo);

    /* Allocate size for the buffer */
    int size = vertexCount * STRIDE * FLOAT_SIZE;
    GL15.glBufferData(GL15.GL_ARRAY_BUFFER, size, GL15.GL_STATIC_DRAW);

    if (DEBUG) {
        System.out.println(
                "\tCreate VBO: " + vbo + " with size = " + size + " (ERROR: " + GL11.glGetError() + ")");
    }

    /* Get the native buffer to write to */
    ByteBuffer byteBuffer = GL15.glMapBuffer(GL15.GL_ARRAY_BUFFER, GL15.GL_WRITE_ONLY, size, null);

    if (byteBuffer == null) {
        System.out.println("\tCouldn't create a native VBO!: GL Error Code = " + GL11.glGetError());

        GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

        mesh.destroy(meshType);
        Thread.dumpStack();
        mesh.setVBO(meshType, -1);
        mesh.setVertexCount(meshType, 0);

        return;
    }

    FloatBuffer vertexBuffer = byteBuffer.asFloatBuffer();

    /* Store all vertices in the buffer */
    USED_SIZE = 0;

    /* Local temporary variables, used to speed up */
    IntList blockList = chunk.getVisibleBlocks();
    int blockIndex = -1;
    byte BlockDef = 0;
    boolean special = false;
    Vec3i vec = new Vec3i();
    BlockDef type;
    Block block = null;
    LightBuffer lightBuffer = chunk.getLightBuffer();
    byte faceMask = 0;

    /* Iterate over the blocks */
    for (int i = 0; i < blockList.size(); ++i) {
        blockIndex = blockList.get(i);
        BlockDef = chunk.getChunkData().getBlockDef(blockIndex);

        if (BlockDef == 0) {
            continue;
        }

        special = chunk.getChunkData().isSpecial(blockIndex);
        type = _blockManager.getBlockDef(BlockDef);

        if ((meshType == MeshType.OPAQUE && !type.isTranslucent() && type.hasNormalAABB())
                || (meshType == MeshType.TRANSLUCENT && (type.isTranslucent() || !type.hasNormalAABB()))) {

            ChunkData.indexToPosition(blockIndex, vec);

            /* Build the light buffer */
            vec.setX(vec.x() + chunk.getAbsoluteX());
            vec.setZ(vec.z() + chunk.getAbsoluteZ());

            lightBuffer.setReferencePoint(vec.x(), vec.y(), vec.z());

            if (special) {
                block = chunk.getChunkData().getSpecialBlock(blockIndex);

                if (block.isVisible()) {
                    block.storeInVBO(vertexBuffer, lightBuffer);
                }
            } else {
                faceMask = chunk.getChunkData().getFaceMask(blockIndex);
                type.getDefaultBlockBrush().setFaceMask(faceMask);
                type.getBrush().storeInVBO(vertexBuffer, vec.x() + 0.5f, vec.y() + 0.5f, vec.z() + 0.5f,
                        lightBuffer);

            }
        }
    }

    /* Perform a check */
    if (USED_SIZE != STRIDE * FLOAT_SIZE * mesh.getVertexCount(meshType)) {
        System.out.println("\t[WARNING!]: Used size = " + USED_SIZE);
        System.out.println("\t[WARNING!]: Vertex count = " + USED_SIZE / STRIDE / FLOAT_SIZE);
        mesh.setVertexCount(meshType, USED_SIZE / STRIDE / FLOAT_SIZE);
    }

    byteBuffer.flip();

    GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

}

---

From source file:net.neilcsmith.praxis.video.opengl.internal.VertexBufferObject.java

License:Apache License

/** {@inheritDoc} */
public void setVertices(float[] vertices, int offset, int count) {
    isDirty = true;//w w w.j  ava  2 s  .com
    if (isDirect) {
        //            BufferUtils.copy(vertices, byteBuffer, count, offset);
        buffer.clear();
        buffer.put(vertices, offset, count);
        buffer.position(0);
        buffer.limit(count);
    } else {
        buffer.clear();
        buffer.put(vertices, offset, count);
        buffer.flip();
        byteBuffer.position(0);
        byteBuffer.limit(buffer.limit() << 2);
    }

    if (isBound) {
        GL15.glBufferData(GL15.GL_ARRAY_BUFFER, byteBuffer, usage);
        isDirty = false;
    }
}

---

From source file:net.neilcsmith.praxis.video.opengl.internal.VertexBufferObject.java

License:Apache License

/** Binds this VertexBufferObject for rendering via glDrawArrays or glDrawElements
 * //from   w w  w.  java 2s.c  o  m
 * @param shader the shader */
public void bind(ShaderProgram shader) {

    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, bufferHandle);
    if (isDirty) {
        byteBuffer.limit(buffer.limit() * 4);
        GL15.glBufferData(GL15.GL_ARRAY_BUFFER, byteBuffer, usage);
        isDirty = false;
    }

    int numAttributes = attributes.size();
    for (int i = 0; i < numAttributes; i++) {
        VertexAttribute attribute = attributes.get(i);
        shader.enableVertexAttribute(attribute.alias);
        int colorType = GL11.GL_FLOAT;
        boolean normalize = false;
        if (attribute.usage == VertexAttributes.Usage.ColorPacked) {
            colorType = GL11.GL_UNSIGNED_BYTE;
            normalize = true;
        }
        shader.setVertexAttribute(attribute.alias, attribute.numComponents, colorType, normalize,
                attributes.vertexSize, attribute.offset);
    }
    isBound = true;
}

---

From source file:net.neilcsmith.praxis.video.opengl.internal.VertexBufferObject.java

License:Apache License

/** Unbinds this VertexBufferObject.
 * //w  w  w  . j a  v a  2  s .  c o  m
 * @param shader the shader */
public void unbind(ShaderProgram shader) {
    int numAttributes = attributes.size();
    for (int i = 0; i < numAttributes; i++) {
        VertexAttribute attribute = attributes.get(i);
        shader.disableVertexAttribute(attribute.alias);
    }
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    isBound = false;
}

---

From source file:net.neilcsmith.praxis.video.opengl.internal.VertexBufferObject.java

License:Apache License

/** Disposes of all resources this VertexBufferObject uses. */
public void dispose() {
    tmpHandle.clear();//from   w  w w .  ja v a2 s .  c  o  m
    tmpHandle.put(bufferHandle);
    tmpHandle.flip();
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    GL15.glDeleteBuffers(tmpHandle);
    bufferHandle = 0;

}

---

From source file:net.smert.frameworkgl.opengl.helpers.VertexBufferObjectHelper.java

License:Apache License

public void bindColors(int vboID, int size, int type, int strideBytes, int offsetBytes) {
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID);
    GL11.glColorPointer(size, type, strideBytes, offsetBytes);
}

---

From source file:net.smert.frameworkgl.opengl.helpers.VertexBufferObjectHelper.java

License:Apache License

public void bindNormals(int vboID, int type, int strideBytes, int offsetBytes) {
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID);
    GL11.glNormalPointer(type, strideBytes, offsetBytes);
}

---

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