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Creating a cube with OpenGL VBO 14 Years Ago by ticktock … all, I am trying desperately to create a cube using VBO. I have the correct vertices that must be used yet… some arguments and the vertices array itself to comply for VBO usage. Thank you to those who'll be helping. create cube using vbo 11 Years Ago by Artyom_1 I'm trying to create a simple colored cube using vbo(well it actually a rectangle with z = 0).…argv); glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA); glutInitWindowSize(g_width, g_height); glutCreateWindow("VBO ASSIMP STARTER"); glewExperimental = true; if (glewInit() != GLEW_OK) { … Re: Creating a cube with OpenGL VBO 14 Years Ago by mike_2000_17 Your problem is that you declare the array of vertices as having 9 coordinates in total, which would only include the first 3 points, i.e. the first triangle. [CODE]//This is where that is set: glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 9, &vertex[0], GL_STATIC_DRAW); //This is what it should be: glBufferData(GL_ARRAY_BUFFER, sizeof(… Re: Creating a cube with OpenGL VBO 14 Years Ago by ticktock I see, how stupid of me. I thought that was where the problem existed, I just did not know what to replace the data argument for that function. Thank you very much! I know that this seems out of context for my thread but, how do I change the perspective of the camera in such a way I can see the figure in its 3d goodness? Sorry for this noob … Re: Creating a cube with OpenGL VBO 14 Years Ago by mike_2000_17 If you are just starting out, it is a bit of a jump to be writing vertex buffers. Don't you think? Try going through the [URL="http://nehe.gamedev.net"]NEHE[/URL] tutorials in order (they are quick and easy to follow, and before you know it you'll be rendering flags flopping in the wind on top of a hill with a bunch of trees around and a … Re: Creating a cube with OpenGL VBO 14 Years Ago by ticktock Thank you for the tip! I am indeed studying with no direction whatsoever. Haha. Oh, and will play around with the glRotatef() function to get to what I want. I'll just mark this as solved! :D Re: create cube using vbo 11 Years Ago by mike_2000_17 You made a typo on line 61: glBindBuffer(GL_ARRAY_BUFFER, vertexId); It should be: glBindBuffer(GL_ARRAY_BUFFER, colorId); Also, I think you should be using `GL_TRIANGLE_STRIP` instead of `GL_TRIANGLES`. See [explanation](http://en.wikipedia.org/wiki/Triangle_strip) or [this page](http://www.lighthouse3d.com/tutorials/glsl-core-tutorial… Re: create cube using vbo 11 Years Ago by Artyom_1 Oh! I see. Thanks! Issue when passing normals to shaders 12 Years Ago by jackshannon4 …lt;< " "; } glGenBuffers(3, vbo); glBindBuffer(GL_ARRAY_BUFFER, vbo[0]); // vertices glBufferData(GL_ARRAY_BUFFER, sizeof(float) *…*)& tmp_normals[0], GL_STATIC_DRAW); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vbo[2]); // indices glBufferData(GL_ELEMENT_ARRAY_BUFFER, indexList.size() *… Re: Issue when passing normals to shaders 12 Years Ago by venomxxl … checked the compilation log? Also take a look at how VBO drawing is done in my engine, maybe it'll help… JOGL How to texture glDrawElements 14 Years Ago by hallinan …yLineIndexBuffer = BufferUtil.newIntBuffer(21 * 201); /* VBO ID numbers for holding the data when OpenGL version… */ private int vertexVBO, normalVBO; // VBO IDs for surface data. private int xLineVBO, …yLineVBO, surfaceVBO; // VBO IDs for index data. public DrawWater() { … Cannot see quad drawn to screen 12 Years Ago by Johnathon332 …, 6 * m_ui32VertexStride, sqVert, GL_STATIC_DRAW); // Unbind the VBO glBindBuffer(GL_ARRAY_BUFFER, 0); return true; //set projection matrix,…eVMatrix], 1, GL_FALSE, v_Matrix.ptr()); // Bind the VBO glBindBuffer(GL_ARRAY_BUFFER, m_ui32Vbo); glUniformMatrix4fv(m_ShaderProgram.auiLoc[eMMatrix], 1,… Keys not responding 12 Years Ago by Viped … play = new JButton("Play vBreakOut"); public Menu(VBreakOut vbo) { try { menubg = ImageIO.read(new File("res/menubg.png… voxel engine help 10 Years Ago by Danieldorn1797 ….h, GLU.h, glew.h, and glm.hpp) - uses a vbo to make blocks and chunks - implements face culling on blocks… More VBO issues 13 Years Ago by Labdabeta I have reinstalled my compiler successfully (finally) and got right back to work. I have created a glModel class as follows: [CODE]class glModel { private: int numv; int numn; unsigned int model; unsigned int textu; unsigned int norma; float *vars; float *norm; public: glModel():numv(0),numn(0){… Re: More VBO issues 13 Years Ago by mike_2000_17 There are several things wrong with your code. First, you have completely redundant pieces of code that clearly abuse dynamic memory allocation. As in this snippet: [CODE] float *temp=new float[numv*5]; for (int i=0; i<numv*5; i++) temp[i]=vars[i]; delete[]vars;vars=NULL; vars=new float[numv*5+5]; for (int i=0; i<… Re: More VBO issues 13 Years Ago by Labdabeta Thank you, still working on the extra implementation so haven't tested yet, but I am hopeful. P.S.: IMO line 19 is useless but as a quote from my model makers "Model.Draw().Move().Draw().Move().Draw() will make drawing recurring shapes easier and faster!" Re: More VBO issues 13 Years Ago by Labdabeta I got a problem, it seems we are using different headers as my headers define glTexCoord as: [CODE]GLAPI void APIENTRY glTexCoordPointer( GLint size, GLenum type, GLsizei stride, const GLvoid *ptr );[/CODE] This means that your code uses invalid arguments. How do I modify your code to fix this? Re: More VBO issues 13 Years Ago by mike_2000_17 I was just illustrating the idea. When I throw together a piece of code in 5 min. to illustrate "how to" fix it, don't expect the code to compile directly, you have to use your own wits too. I guess you would have to define the last parameters to the gl**Pointer() functions as so for example: [CODE] glTexCoordPointer(2, GL_FLOAT, … Re: More VBO issues 13 Years Ago by Labdabeta I understand that, the issue is that my glTexCoordPointer does not seem to take info from the GL_ARRAY_BUFFER as it requires I specify an array. Also it does not allow me to give it an offset. I cannot think of how to do this without using multiple temporary arrays. Re: More VBO issues 13 Years Ago by mike_2000_17 Read the documentation carefully. For instance, under [URL="http://www.opengl.org/sdk/docs/man/xhtml/glTexCoordPointer.xml"]glTexCoordPointer[/URL], you will find: [QUOTE]If a non-zero named buffer object is bound to the GL_ARRAY_BUFFER target (see glBindBuffer) while a texture coordinate array is specified, pointer is treated as a byte … Re: More VBO issues 13 Years Ago by Labdabeta Ok, I understand (I think and hope) I got rid of all compiling errors, but I am still plagued by the error report. What is wrong now? [CODE]class glModel { private: int numv; unsigned int model; struct glVertexStructure { float vert[3]; float text[2]; float norm[3]; }; … Re: where am i going wrong..pls help 14 Years Ago by puvi …['esales']; $vsales=$_POST['vsales']; $ebo = $_POST['ebo']; $vbo =$_POST['vbo']; $eadmin=$_POST['eadmin']; $vadmin=$_POST['vadmin']; //$subject = &…sql); $sql = "INSERT INTO business_overview values('','$userid','$ebo','$vbo')"; $sqlres = mysql_query($sql); $sql = "INSERT… Re: I might have a memory leak, OpenGL SDL 14 Years Ago by DaSpirit … and SDL helping me. I'll most likely try the VBO method. Isn't glBegin depracted? I mean, if it is… Re: I might have a memory leak, OpenGL SDL 14 Years Ago by mike_2000_17 … been "ugly" and slow, and rarely useful because VBO (or just "vertex buffers" as they used to… Re: I might have a memory leak, OpenGL SDL 14 Years Ago by DaSpirit … read that I need it in order to have the VBO functions. Right now, I get an error using the first… Re: GL list logic? 13 Years Ago by Labdabeta I tried using the non-arb versions, it said that they were all not declared in the scope. Are VBOs really worth the trouble? and if so could you give me some simple sample code to make a short VBO display, say, a triangle? Re: GL list logic? 13 Years Ago by Labdabeta That is a problem though since it wont link and my libopengl32.a file is working fine. I guess my headers are out of date with my libraries? How do I fix this? P.S.: This VBO stuff had better be worth all this effort :P Re: Still Having Library Issues 13 Years Ago by Ancient Dragon what compiler are you using? what operating system? what is VBO? Re: Maya Modeling Software 13 Years Ago by Labdabeta … all triangles, or if it would be a mix (making VBO's harder to use) basically if somebody could help me…