glBindBuffer(GL_ARRAY_BUFFER, planeVBO);glBufferData(GL_ARRAY_BUFFER,sizeof(planeVertices), &planeVertices, GL_STATIC_DRAW); glEnableVertexAttribArray(0); glVertexAttribPointer(0,3, GL_FLOAT, GL_FALSE,8*sizeof(GLfloat), (GLvoid*)0); glEnableVertexAttribArray(1); glVertexAttribPointer(1,...
GLenum usage);targetSpecifies thetargetbuffer object. The symbolic constant must be GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER, or GL_PIXEL_UNPACK_BUFFER. 如何理解target对象?那几个固定的参数应该是固定的内存地址,当几组数据被传送到显存中,绘制的时候显卡是如何确定draw哪组顶点?
FloatBuffer vertexData = BufferUtils.createFloatBuffer(amountOfVertices * vertexSize); vertexData.put(vertices); vertexData.flip(); glBufferData(GL_ARRAY_BUFFER, vertexData, GL_STATIC_DRAW); Run Code Online (Sandbox Code Playgroud) 是等效的 java 代码,其中vertices是包含顶点数据的浮点数组,vertexSiz...
7.1、VBO和 EBO 在OpenGL开发中,用于绘制的顶点数据首先是存储在 CPU 内存中的,比如我们在《RenderDemo(1):用OpenGL画一个三角形》中的三角形的 3 个顶点数据...,VBO); // 把新创建的VBO绑定到 GL_ARRAY_BUFFER 目标上,同时也绑定到了OpenGL渲染管线上glBufferData(GL_ARRAY_BUFFER, sizeof...在《RenderDe...
voidglBufferData(GLenumtarget,GLsizeiptrsize,constGLvoid*data,GLenumusage); //target:可以是GL_ARRAY_BUFFER()(顶点数据)或GL_ELEMENT_ARRAY_BUFFER(索引数据) //size:存储相关数据所需的内存容量 //data:用于初始化缓冲区对象,可以是一个指向客户区内存的指针,也可以是NULL ...
gl4.glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementSize, elementBuffer, GL_STATIC_DRAW); gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,0); gl4.glBindBuffer(GL_ARRAY_BUFFER, bufferName.get(Buffer.VERTEX));for(inti =0; i < vertexCount; i++) { ...
The symbolic constant must be GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER, or GL_PIXEL_UNPACK_BUFFER. 如何理解target对象?那几个固定的参数应该是固定的内存地址,当几组数据被传送到显存中,绘制的时候显卡是如何确定draw哪组顶点? 初学OpenGL,很多不懂的地方。
GLES30.glBufferData(target,data.sizeBytes(),(ByteBuffer)data.nativeBuffer(),usage); } 代码示例来源:origin: glumes/AndroidOpenGLTutorial GLES30.glBufferData(GLES30.GL_ARRAY_BUFFER,vertices.length*4,mVertexBuffer,GLES30.GL_STATIC_DRAW); GLES30.glBufferData(GLES30.GL_ARRAY_BUFFER,modelMatrix.length*...
private void bufferChanged () { if (isBound) { Gdx.gl20.glBufferData(GL20.GL_ARRAY_BUFFER, byteBuffer.limit(), byteBuffer, usage); isDirty = false; } } 代码示例来源:origin: libgdx/libgdx private void bufferChanged () { if (isBound) { Gdx.gl20.glBufferData(GL20.GL_ARRAY_BUFFER, byteBu...
pushback(Vertex()) ...define the rest of the vertices and set position and color data etc //Opengl code glBindBuffer(GL_ARRAY_BUFFER, this->vboID[0]); glBufferData(GL_ARRAY_BUFFER, ( this->vertices.size() * sizeof(Vertex) ) , this->vertices.data(), GL_STATIC_DRAW); glVertexAttr...