Gllinewidth invalid value khronos See glFramebufferRenderbuffer. GL_MAX_SAMPLES. From reading up, it seems like the latest versions of OpenGL are abandoning line-width support. Associated Gets. I have a new question now, I will start a new thread. The actual procedures are like so: GLvoid DrawBuilding(int by, int bx) { glPushMatrix(); glTranslatef(bx * griddist,by * griddist,0. 0f) works perfectly, and enabling GL_LINE_SMOOTH doesn’t seem to make any difference other than slightly thicker lines. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … “How do I change the minimum and maximum linewidths?” You can’t change this values the Proc glGetFloatv(GL_LINE_WIDTH_RANGE, lineWidth); say you what your OpenGL implementatin suport. 0f); glLineWidth (3); glBegin(GL_LINE_STRIP); glVertex2f(0, 0); // origin of the line glVertex2f(Y_VALUE, X_VALUE); // ending point of the glEnd( ); line So, while the robot is moving, it is Jul 28, 2008 · Solved, thanks. glLineWidth specifies the rasterized width of lines. 0f, 0. Nov 15, 2001 · Maybe your implementation does not support thick lines. Feb 5, 2021 · index must be less than GL_MAX_VIEWPORTS or GL_INVALID_VALUE will result. java:715) at gl4java. Mar 7, 2018 · When using primitive mode POINTS, LINES, LINE_LOOP, LINE_STRIP, what is the expected point size and line width? Should they be 1? Nov 25, 2023 · This is the other error that I get GL CALLBACK: ** GL ERROR ** type = 0x824c, severity = 0x9146, message = GL_INVALID_VALUE error generated. Jan. 0 will generate an INVALID VALUE error; This looks a little bit half-baked. The corresponding Chromium bug and Firefox bug are closed as Won't Fix and the WebGL specification now defines that gl. However, the execution of the kernel with clEnqueueNDRangeKernel returns the CL_INVALID_VALUE constant. The value indicates the maximum supported size for renderbuffers and must be at least 2048. GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to an enabled array or the element array and the buffer object's data store is currently mapped. Dec 5, 2000 · glPolygonOffset() has two parameters: factor and units, but i don’t know what they mean. Feb 5, 2021 · void glLineWidth(GLfloat width ); width Specifies the width of rasterized lines. display(GLCanvas. GLContext. GL_INVALID_VALUE is generated if width is less than or equal to 0. 5 Enable GL_BLEND (with standard blend function) Set glDepthMask to FALSE Set glHint to GL_NICEST That is the basic stuff you can find in the Nov 29, 2009 · I’m working on this robot project, that outputs some continuous values while the robot is moving. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … Aug 30, 2008 · I always hated point-sprites, IMO they are useless, because of their various limitations. Navigation Menu Toggle navigation Errors. I draw the object with polygonal primitives(GL_TRIANGLES) and then i want to draw two lines on it. Unmodified all sources of this tutorial run very well but when I edit the texture-section it drops out … here is my source: Traceback (most recent call last): File “texturetest. May 29, 2020 · gl_invalid_value, 0x0501 Given when a value parameter is not a legal value for that function. 11). GL_INVALID_OPERATION is generated if a geometry shader is active and mode is incompatible with the input primitive type of the geometry shader in the currently installed program object. ) Feb 5, 2021 · void glLineWidth(GLfloat width ); width Specifies the width of rasterized lines. You have an GL_RGBA source image, are you sure you don’t need the alpha in the internalFormat? It would be GL_RGBA8 then. I write them May 14, 2014 · I get an “invalid value” right after all of my glEnableVertexAttribArray functio… Hello, I guess I have a weird problem which I am not sure how to fix. py”, line 182, in ? main() File “texturetest. Specifies the polygons that mode applies to. GLAnimCanvas. //Displacement of Robot glColor3f(1. lang. If an unsupported width is requested, the nearest supported width glLineWidth specifies the rasterized width of lines. If the requested width or height cannot be satisfied, either when the drawing buffer is first created or when the width and height attributes of the HTMLCanvasElement or OffscreenCanvas are changed, a drawing buffer with smaller dimensions shall be created. 0 which is said to be a typical use in FAQ, but it doesn’t work. 1 Like bkelly October 7, 2020, 6:17pm Oct 21, 2009 · Hello everybody, I’m using the OpenGL ES 1. Sep 6, 2014 · GL_INVALID_ENUM is generated if /target is not GL_TEXTURE_3D. So the information necessary would be: Generation of the shader, how it is stored (i. Though i have read OpenGL FAQ in OpenGL. GL_INVALID_VALUE is generated by glEnablei and glDisablei if index is greater than or equal to the number of indexed capabilities for cap . May 27, 2003 · Has anyone any clue on what this exception is refering to?? Could it be a known bug?? or am i not handling my threads well?? GL ERROR : invalid value GL ERROR : 1281 x 0x501 java. float lineWidth[2]; glGetFloatv(GL_LINE_WIDTH_RANGE, lineWidth); lineWidth[0] is the minimum width, and lineWidth[1] is the maximum. OpenGL: Basic Coding. Navigation Menu Toggle navigation Jun 30, 2004 · That’s easy, glTexImage width and height need to be power of two values, 150 is not. Navigation Menu Toggle navigation Jan 22, 2015 · There’s no possible way to diagnose this with any certainty without knowing what’s going on in ShaderProgram. ) Nov 15, 2001 · Help! I’ve been trying to sort out this problem for ages, and I am not getting anywhere! It seems that glLineWidth(5. OpenGL and OpenGL ES reference page sources, and generated HTML used as backing store for khronos. You’ll get errors and even more errors with V2, 3dfx Skip to content. It was my fault. Otherwise, i pixels are filled in each row that is rasterized. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … HTMLCanvasElement. 0f is guaranteed to be supported. 0 support for other is implemantation depedent May 28, 2010 · I have no idea what is wrong with the simple code. Specifies how polygons will be rasterized. 2 Intermediate language programs in Arm Mali GPU OpenCL Developer Guide(Version 4. CatDog GL_INVALID_VALUE is generated if count is less than 0. Clamping and rounding for aliased and antialiased lines have no effect on the specified value. GL_TEXTURE_2D); uint[] textures = new uint[1]; GL. GL_INVALID_ENUM is generated if either face or mode is not an glLineWidth , Oct 7, 2020 · Certain combinations of invalid state will only be detected when issuing a draw call; any such errors are likely to be reported by the glEnd() call. Otherwise,ipixels are Nov 15, 2001 · Help! I’ve been trying to sort out this problem for ages, and I am not getting anywhere! It seems that glLineWidth(5. I’ve created a unique buffer with the total ammount of bytes needed to contains all the vertices glBufferData(buffer->glTarget, buffer->nTotalBytes, 0, buffer->glUsage); then reading each mesh vertices array i’d like to copy those bytes into the buffer, each at the right offset The OpenGL® Graphics System: A Specification (Version 4. Jun 30, 2014 · I am trying to build a little Open GL2. GL_INVALID_VALUE is generated by glIsEnabledi if index is outside the valid range for the indexed state cap. GL_INVALID_VALUE is generated by glEnablei and glDisablei if index is greater than or equal to the number of indexed capabilities for cap. params returns one value. Not all widths can be supported when line antialiasing is enabled. This is my code. 1): Chris Frazier Editor (versions 1. I want to be able to draw some thick black likes on the screen. sDisplay(GLCanvas. See Also [ edit ] (If the rounding results in the value 0, it is as if the line width were 1. mode. Sign in Description. It only shows once more, what we are supposed to expect from the ARB. org - OpenGL-Refpages/glLineWidth. 0 and 10. I believe that is correct. 0f); glVertex3f( 0 GL_INVALID_VALUE is generated by glEnablei and glDisablei if index is greater than or equal to the number of indexed capabilities for cap. Toggle navigation Skip to content. GL_INVALID_ENUM is generated if any of source, type or severity is not one of the accepted interface types. Program handle does not Jun 30, 2004 · Hallo, for three days I try to texture my objects without succeed … My work is based on the good understandable “NeHe”-Tutorial. (If the rounding results in the value 0, it is as if the line width were 1. But if I got it right, there is no such thing for wide lines. 04, where my opencl kernel was compiled and converted to a . GL_INVALID_OPERATION is generated if count is greater than 1 and the indicated uniform variable is not an array variable. 0f), GL_INVALID_VALUE is generated and line width don’t change. extern "C" void add_lines(bool antialias,GLdouble coordinates[][2],int array_size,GLdouble w,GLdo May 11, 2020 · If line antialiasing is disabled, the actual width is determined by rounding the supplied width to the nearest integer. If line antialiasing is disabled, the actual width is determined by rounding the supplied width to the nearest integer. GL_PRIMITIVE_RESTART is available only if the GL version is 3. Nonantialiased line width may be clamped to an implementation-dependent maximum. If point size mode is disabled (see glEnable with parameter GL_PROGRAM_POINT_SIZE), this value will be used to rasterize points. GL_INVALID_VALUE is generated on any of glGetBooleani_v , glGetIntegeri_v , glGetFloati_v , glGetDoublei_v , or glGetInteger64i_v if index is outside of the valid range for the indexed state target . GL_INVALID_OPERATION is generated if glLineWidth is executed between the execution of glBegin and the corresponding execution of glEnd. glClear sets the bitplane area of the window to values previously selected by glClearColor, glClearDepth, and glClearStencil. My problem is : Before this : glDrawElements(GL_LINE_LOOP, …) When this is present: glLineWith(3. Is there a way to make it draw more than ten pixels? void OGL_Renderer::drawLine(int x, int y, int x2, int y2, int r, i The initial value is GL_FILL for both front- and back-facing polygons. 0/glLineWidth. GL_INVALID_ENUM is generated if cap is not an accepted value. I set the factor and units to 1. glPointSize(5. Try the following piece of code to see how thick lines you can use. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … Works for me onserveral Unix and Windows platforms. I develop in Windows environment (Visual Studio 2005) for devices with Windows Mobile / CE. Perhaps if you post a little more info such as OS,graphics, a little code we may be able to help more Nov 16, 2001 · Help! I’ve been trying to sort out this problem for ages, and I am not getting anywhere! It seems that glLineWidth(5. Nov 12, 2012 · In C#, inside the OpenGL context of Esri ArcMap dynamic display (immediate mode), I try to create textures: GL. Must be GL_FRONT_AND_BACK for front- and back-facing polygons. The value indicates the maximum supported number of samples for multisampling. Can anyone help? Dec 18, 2012 · actually, this problem is for Mac OS X. GL_INVALID_VALUE is generated if count is negative. width and . 0, I’m getting just single thickness lines (using glLineWidth(8. org, I still can’t understand it. Notes The coverage value for each fragment is the window coordinate area of the intersection of the rectangular region with the corresponding pixel square. Nov 15, 2001 · Even staying within the range of 0. Navigation Menu Toggle navigation. GL_INVALID_OPERATION is generated if count is non-zero and either source or type is GL_DONT_CARE or if severity is not GL_DONT_CARE. xml at main · KhronosGroup/OpenGL Jan 9, 2012 · I'm setting up a OpenGL 3. 6 ): Jon Leech Description. pSSBO != pSSBOLocal: PASS Hence everything is fine, no errors. See glGetInternalformativ. Invalid value is supposed to be returned if the x,y,width height params are bogus, and invalid enumerant if the target type is wrong. Jul 19, 2011 · Hi everybody, I work on a 3D software modelisation and using opengl for renderer. awt. That being said… I find it disconcerting to see you using a std::vector to store your ShaderProgram objects in. 2 or greater. Hugs Skip to content. The coverage value for each fragment is the window coordinate area of the intersection of the rectangular region with the corresponding pixel square. If a buffer is not present, then a glClear directed at that buffer has no effect. See glScissorIndexed. Not so much because it’s impossible, but mainly because it’s very dangerous if you don’t know what you’re doing. Thanks again, Alberto Notes. And impossible to use ShaderProgram like this GL_INVALID_VALUE is generated if count is negative. Using a line width other than 1 has different effects, depending on whether line antialiasing is enabled. This is only given for local problems; if the spec allows the value in certain circumstances, where other parameters or state dictate those circumstances, then GL_INVALID_OPERATION is the result instead. glClear sets the bitplane area of the window to values previously selected by glClearColor, glClearDepthf, and glClearStencil. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole range of numbers). Other things: Instead of the internalFormat parameter set to three, you should use GL_RGB8. If an unsupported width is requested, the nearest supported width The coverage value for each fragment is the window coordinate area of the intersection of the rectangular region with the corresponding pixel square. Dec 24, 2023 · This is great to know, thank you both. The value must be at least 4. Lev November 15, 2001, 5:12am 6. 0 demo application on android but i am getting the following errors in log cat 07-02 20:50:40. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … Sorry , I suppose I meant it the other way round (getting the values first and then asking the question) . 0f) for example). GL_INVALID_VALUE is generated if any bit other than the three defined bits is set in mask . 2 Core context on Mac OS X. ” I’m using an omap3 with the lastest TI drivers. I’ll play around with the context settings - I recently ported my engine to Silk. Notes glLineWidth specifies the rasterized width of lines. 1 or greater. May 31, 2013 · vertex array objects are not shared across contexts. Is that true? Something about future-compatibility. ) If Δ x >= Δ y, i pixels are filled in each column that is rasterized, where i is the rounded value of width. spv kernel file was copyed to the smartphone and used in clCreateProgramWithIL(), clCreateProgramWithIL What links here; Related changes; Special pages; Printable version; Permanent link; This page was last edited on 17 March 2013, at 08:12. gljCheckGL(GLContext. jave:2249) at gl4java. Feb 5, 2021 · GL_INVALID_ENUM is generated if pname is not an accepted value. In pervious version of OpenGL, I could just set glLineWidth(10. Exception at gl4java. Aug 14, 2010 · In my OpenGL app, it won't let me draw a line greater then ten pixels wide. 0f}; glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, lineWidthRange); // Maximum supported line width is in lineWidthRange[1]. Multiple color buffers can be cleared simultaneously by selecting more than one buffer at a time using glDrawBuffers. face. example: ShowWindow(hwnd,SW_HIDE); hdc = GetDC(hwnd); pixelFormat = ChoosePixelFormat(hdc,&pfd); SetPixelFormat(hdc May 8, 2009 · So I have an application with a wireframe type draw and I was wondering if anyone has any useful tips/hints on doing really good line Anti-Aliasing with basic OpenGL? Currently I… Enable GL_MULTISAMPLE. I’m a little bit lost as for what could be the reason for the error, since the Khronos OpenCL specification (v1, rev43) doesn’t Nov 15, 2001 · It seems that glLineWidth(5. Does anyone have any idea what might be happening? I’m already thinking that this function is not implemented in this library. Call glGet with GL_ALIASED_LINE_WIDTH_RANGE to determine the maximum width. You can query the range of supported line widths with: GLfloat lineWidthRange[2] = {0. spv file following G. xml at main · KhronosGroup Aug 29, 2008 · That’s a good solution. The line width specified by glLineWidth is always returned when GL_LINE_WIDTH is queried. java:796) at gl4java. 3 Core profile and running on Win7 64 bits / NVIDIA GTX 580. 0, my best guess is that it’s your emulator that doesn’t like the line width; glLineWidth’s valid values depend on the hardware, and only a width of 1. Errors. Sign in Errors. Chapter E1: LineWidth is not deprecated, but values greater than 1. The function is for use with python and ctypes. GL_INVALID_VALUE is generated by glIsEnabledi if index is outside the valid range for the indexed state cap . xml at main · KhronosGroup/OpenGL Nov 10, 2022 · I have a smartphone with a mali G710 gpu, which supports opencl 3. py”, line 178, in main InitGL . 0 Reference Pages, it is said “GL_INVALID_VALUE is generated if width is less than or equal to 0. lineWidth() has no effect in common modern browsers. Currently, my code to draw these values are such below. Everything works fine in the ShaderProgram Constructor but after that all uniform queries used by the ID created in in the constructor results in failure. There is a x86_64 machine with ubuntu 16. height values less than 1 are treated as 1. in which variable) and the glGetUniformLocation call. Description . This code seems to have worked before but now I get a blank screen. GL_INVALID_ENUM is generated if cap is not one of the values listed previously. Otherwise, the value written to the shading language built-in variable gl_PointSize will be used. Apr 15, 2014 · As for the last question, it has an easy answer: You assign the function’s return value to an unsigned int, which doesn’t have a sign (duh). Associated Gets May 25, 2014 · Hi! I’d like to upload a bunch of vertices of meshes (simple arrays of float values x,y,z) into a single vbo. e. . The actual width is determined by rounding the supplied width to the nearest integer. Multiple color buffers can be cleared simultaneously by selecting more than one buffer at a time using glDrawBuffer. Nov 15, 2001 · It seems that glLineWidth(5. A 0x0 canvas will yield a 1x1 drawingBufferWidth/Height. 6 (Core Profile) - May 5, 2022) Mark Segal Kurt Akeley Editor (version 1. lineWidth() does not change the line width anymore. This value is saved and used in the final rasterization step. glBindTexture(1, textur index must be less than GL_MAX_VIEWPORTS or GL_INVALID_VALUE will result. this->sPrograms. I was getting an invalid value, not an invalid enumerant. The point size specified by glPointSize is always returned when GL_POINT_SIZE is queried. Jan 22, 2015 · Ok I have narrowed it down even further. Notes . Mar 22, 2023 · GL_INVALID_VALUE is generated if the source and destination are the same buffer object, and the ranges readOffset,readOffset+size and writeOffset,writeOffset+size overlap. Any token accepted by glEnable or glDisable is also accepted by glEnablei and glDisablei, but if the capability is not indexed, the maximum value that index may take is zero. push_back(ShaderProgram(shaders, pinfos->at(i)->name)); sPrograms is vector. 0f); glEnable(GL_LINE_SMOOTH); glLineWidth(160000/(px*px)); {where px is your distance away, a value ranging from anything up to a distance of 600} glBegin(GL_LINES); glVertex3f( 0. glGet with argument GL_LINE_WIDTH glGet with argument GL_ALIASED_LINE_WIDTH_RANGE glGet with argument GL_SMOOTH_LINE_WIDTH_RANGE The value to which each buffer is cleared depends on the setting of the clear value for that buffer. Yeah, keeping glLineWidth but forbidding values > 1 is a strange solution. GL_INVALID_VALUE is generated if size is less than or equal to 0. The initial value is 1. 0f); and I wil Apr 15, 2014 · You might get a much faster solution to your problem if you could post the relevant code snippets here, searching through over 1000 LOC is a little tedious 🙂 and you might have as well made a typo in your specific code. x Vincent in a software I’m developing and I am not able to change the width of the line with the function glLineWidth. 0. You have to construct them by yourself. GL_MAX_SERVER_WAIT_TIMEOUT Nov 15, 2001 · I’m using opengl on a mac, with a voodoo 2 card. Don’t set the glTexParameter for WRAP_S and _T twice, only the last will be used. Accepted values are GL_POINT, GL_LINE, and May 14, 2010 · What could be the cause of this error? All other error description give some sort of explanation about its cause, but this one is tricky… What situations may cause Skip to content. 2-4. NET - and see if I can get it working again. ) If [math]∣∣\gt =∣∣[/math] ,ipixels are filled in each column that is rasterized, whereiis the rounded value of width . May 11, 2001 · did you embed the glLineWidth procedure call in glBegin() and glEnd(), if so, surely it won’t work Navigation Menu Toggle navigation. ) glLineWidth specifies the rasterized width of lines. Enable GL_LINE_SMOOTH. run(GLAnimCanvas Feb 4, 2015 · GL_INVALID_VALUE is generated if count is negative. 0f); does not have any effect on lines, and they remain just one pixel thick (even if I try a whole … the only width which is guaranteed is 1. Set glLineWidth() to 0. Dec 18, 2012 · Given that you seem to be programming in OpenGL ES 2. GL_INVALID_ENUM is generated if any of source , type or severity is not one of the accepted interface types. And it appears that the range is actually just 1-1. Nov 22, 2017 · gl. Feb 5, 2009 · i never had problems with hidden window. See Also Feb 5, 2021 · Otherwise, the value written to the shading language built-in variable gl_PointSize will be used. There aren’t any other variables to enable beforehand ? Nov 15, 2001 · Khronos Forums glLineWidth - doesn't work ! OpenGL. Feb 12, 2010 · whereas in the OpenGL ES 2. GLCanvas. GL_INVALID_OPERATION is generated if a sampler is loaded using a command other than glProgramUniform1i and glProgramUniform1iv. org - OpenGL-Refpages/es3. glEnable(GL. GL_INVALID_ENUM is generated if mode is not an accepted value. Notes GL_PRIMITIVE_RESTART is available only if the GL version is 3. All our code are based on Opengl 3. Errors . The Specification said : Values less than or equal to The coverage value for each fragment is the window coordinate area of the intersection of the rectangular region with the corresponding pixel square. Jul 9, 2009 · Hello, I implemented an OpenCL calculation, and all of the stages seem to be running ok (context creation, device variable allocation, kernel building, etc). GL_TEXTURE_CUBE_MAP_SEAMLESS is available only if the GL version is 3. Jan 19, 2016 · OpenGL implementations are not required to support rendering of wide lines. When the . Clamping and rounding for points have no effect on the specified value. It should have simply been something that constructs billboards on the GPU, but instead it has this weird behaviour, that is mostly useless. glLineWidth specifies the rasterized width of both aliased and antialiased lines. 110: E/libEGL(1252): call to OpenGL ES API with no current con Nov 15, 2001 · It seems that glLineWidth(5. ymlwu ivrne lgkuw jhmxrw nnhhy mvghq zrbk buf suot hwlu