{"record":{"id":"d00766be5362e1b1","repo":"libgdx/libgdx","slug":"glgetframebufferattachmentparameteriv-invalid-enum","errorCode":null,"errorMessage":"glGetFramebufferAttachmentParameteriv Invalid enum for WebGL backend.","messagePattern":"glGetFramebufferAttachmentParameteriv Invalid enum for WebGL backend\\.","errorType":"exception","errorClass":"GdxRuntimeException","httpStatus":null,"severity":"error","filePath":"backends/gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/GwtGL20.java","lineNumber":658,"sourceCode":"\tpublic void glGetFramebufferAttachmentParameteriv (int target, int attachment, int pname, IntBuffer params) {\n\t\tswitch (pname) {\n\t\tcase GL20.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:\n\t\tcase GL20.GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:\n\t\tcase GL20.GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:\n\t\t\tparams.put(0, gl.getFramebufferAttachmentParameteri(target, attachment, pname));\n\t\t\tparams.flip();\n\t\t\tbreak;\n\t\tcase GL20.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:\n\t\t\tWebGLTexture tex = gl.getParametero(pname);\n\t\t\tif (tex == null) {\n\t\t\t\tparams.put(0);\n\t\t\t} else {\n\t\t\t\tparams.put(textures.getKey(tex));\n\t\t\t}\n\t\t\tparams.flip();\n\t\t\treturn;\n\t\tdefault:\n\t\t\tthrow new GdxRuntimeException(\"glGetFramebufferAttachmentParameteriv Invalid enum for WebGL backend.\");\n\t\t}\n\t}\n\n\t@Override\n\tpublic void glGetIntegerv (int pname, IntBuffer params) {\n\t\tif (pname == GL20.GL_ACTIVE_TEXTURE || pname == GL20.GL_ALPHA_BITS || pname == GL20.GL_BLEND_DST_ALPHA\n\t\t\t|| pname == GL20.GL_BLEND_DST_RGB || pname == GL20.GL_BLEND_EQUATION_ALPHA || pname == GL20.GL_BLEND_EQUATION_RGB\n\t\t\t|| pname == GL20.GL_BLEND_SRC_ALPHA || pname == GL20.GL_BLEND_SRC_RGB || pname == GL20.GL_BLUE_BITS\n\t\t\t|| pname == GL20.GL_CULL_FACE_MODE || pname == GL20.GL_DEPTH_BITS || pname == GL20.GL_DEPTH_FUNC\n\t\t\t|| pname == GL20.GL_FRONT_FACE || pname == GL20.GL_GENERATE_MIPMAP_HINT || pname == GL20.GL_GREEN_BITS\n\t\t\t|| pname == GL20.GL_IMPLEMENTATION_COLOR_READ_FORMAT || pname == GL20.GL_IMPLEMENTATION_COLOR_READ_TYPE\n\t\t\t|| pname == GL20.GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS || pname == GL20.GL_MAX_CUBE_MAP_TEXTURE_SIZE\n\t\t\t|| pname == GL20.GL_MAX_FRAGMENT_UNIFORM_VECTORS || pname == GL20.GL_MAX_RENDERBUFFER_SIZE\n\t\t\t|| pname == GL20.GL_MAX_TEXTURE_IMAGE_UNITS || pname == GL20.GL_MAX_TEXTURE_SIZE || pname == GL20.GL_MAX_VARYING_VECTORS\n\t\t\t|| pname == GL20.GL_MAX_VERTEX_ATTRIBS || pname == GL20.GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS\n\t\t\t|| pname == GL20.GL_MAX_VERTEX_UNIFORM_VECTORS || pname == GL20.GL_NUM_COMPRESSED_TEXTURE_FORMATS\n\t\t\t|| pname == GL20.GL_PACK_ALIGNMENT || pname == GL20.GL_RED_BITS || pname == GL20.GL_SAMPLE_BUFFERS\n\t\t\t|| pname == GL20.GL_SAMPLES || pname == GL20.GL_STENCIL_BACK_FAIL || pname == GL20.GL_STENCIL_BACK_FUNC","sourceCodeStart":640,"sourceCodeEnd":676,"githubUrl":"https://github.com/libgdx/libgdx/blob/97f40861878058087be0685ca167ddfde132134b/backends/gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/GwtGL20.java#L640-L676","documentation":"Error \"glGetFramebufferAttachmentParameteriv Invalid enum for WebGL backend.\" thrown in libgdx/libgdx.","triggerScenarios":"Thrown at backends/gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/GwtGL20.java:658 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Only pass enums accepted by WebGL for glGetFramebufferAttachmentParameteriv (e.g. FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE/NAME/TEXTURE_LEVEL/TEXTURE_CUBE_MAP_FACE); other GL enums are invalid on WebGL."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"97f40861878058087be0685ca167ddfde132134b","analyzedAt":"2026-08-14T10:52:53.492Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}