glEnable, glDisable - enable or disable GL capabilities
void glEnable( GLenum cap )
cap Specifies a symbolic constant indicating a GL capability.
void glDisable( GLenum cap )
cap Specifies a symbolic constant indicating a GL capability.
glEnable and glDisable enable and disable various capabilities. Use glIsEnabled or glGet to determine the current setting of any capability. Both glEnable and glDisable take a single argument, cap, which can assume one of the following values: GL_ALPHA_TEST If enabled, do alpha testing. See glAlphaFunc. GL_AUTO_NORMAL If enabled, compute surface normal vectors analytically when either GL_MAP2_VERTEX_3 or GL_MAP2_VERTEX_4 is used to generate vertices. See glMap2. GL_BLEND If enabled, blend the incoming RGBA color values with the values in the color buffers. See glBlendFunc. GL_CLIP_PLANEi If enabled, clip geometry against user-defined clipping plane i. See glClipPlane. GL_COLOR_ARRAY_EXT If enabled, colors are taken from the color array when glArrayElementEXT or glDrawArraysEXT is called. See glColorPointerEXT, glArrayElementEXT and glDrawArraysEXT. GL_COLOR_MATERIAL If enabled, have one or more material parameters track the current color. See glColorMaterial. GL_CULL_FACE If enabled, cull polygons based on their winding in window coordinates. See glCullFace. GL_DEPTH_TEST If enabled, do depth comparisons and update the depth buffer. See glDepthFunc and glDepthRange. GL_DITHER If enabled, dither color components or indices before they are written to the color buffer. GL_EDGE_FLAG_ARRAY_EXT If enabled, edge flags are taken from the edge flags array when glArrayElementEXT or glDrawArraysEXT is called. See glEdgeFlagPointerEXT, glArrayElementEXT and glDrawArraysEXT. GL_FOG If enabled, blend a fog color into the posttexturing color. See glFog. GL_INDEX_ARRAY_EXT If enabled, color indexes are taken from the color index array when glArrayElementEXT or glDrawArraysEXT is called. See glIndexPointerEXT, glArrayElementEXT and glDrawArraysEXT. GL_LIGHTi If enabled, include light i in the evaluation of the lighting equation. See glLightModel and glLight. GL_LIGHTING If enabled, use the current lighting parameters to compute the vertex color or index. Otherwise, simply associate the current color or index with each vertex. See glMaterial, glLightModel, and glLight. GL_LINE_SMOOTH If enabled, draw lines with correct filtering. Otherwise, draw aliased lines. See glLineWidth. GL_LINE_STIPPLE If enabled, use the current line stipple pattern when drawing lines. See glLineStipple. GL_LOGIC_OP If enabled, apply the currently selected logical operation to the incoming and color buffer indices. See glLogicOp. GL_MAP1_COLOR_4 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate RGBA values. See glMap1. GL_MAP1_INDEX If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate color indices. See glMap1. GL_MAP1_NORMAL If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate normals. See glMap1. GL_MAP1_TEXTURE_COORD_1 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate s texture coordinates. See glMap1. GL_MAP1_TEXTURE_COORD_2 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate s and t texture coordinates. See glMap1. GL_MAP1_TEXTURE_COORD_3 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate s, t, and r texture coordinates. See glMap1. GL_MAP1_TEXTURE_COORD_4 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate s, t, r, and q texture coordinates. See glMap1. GL_MAP1_VERTEX_3 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate will generate x, y, and z vertex coordinates. See glMap1. GL_MAP1_VERTEX_4 If enabled, calls to glEvalCoord1, glEvalMesh1, and glEvalPoint1 will generate homogeneous x, y, z, and w vertex coordinates. See glMap1. GL_MAP2_COLOR_4 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate RGBA values. See glMap2. GL_MAP2_INDEX If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate color indices. See glMap2. GL_MAP2_NORMAL If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate normals. See glMap2. GL_MAP2_TEXTURE_COORD_1 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate s texture coordinates. See glMap2. GL_MAP2_TEXTURE_COORD_2 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate s and t texture coordinates. See glMap2. GL_MAP2_TEXTURE_COORD_3 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate s, t, and r texture coordinates. See glMap2. GL_MAP2_TEXTURE_COORD_4 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate s, t, r, and q texture coordinates. See glMap2. GL_MAP2_VERTEX_3 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate will generate x, y, and z vertex coordinates. See glMap2. GL_MAP2_VERTEX_4 If enabled, calls to glEvalCoord2, glEvalMesh2, and glEvalPoint2 will generate homogeneous x, y, z, and w vertex coordinates. See glMap2. GL_NORMAL_ARRAY_EXT If enabled, normals are taken from the normal array when glArrayElementEXT or glDrawArraysEXT is called. See glNormalPointerEXT, glArrayElementEXT and glDrawArraysEXT. GL_NORMALIZE If enabled, normal vectors specified with glNormal are scaled to unit length after transformation. See glNormal. GL_POINT_SMOOTH If enabled, draw points with proper filtering. Otherwise, draw aliased points. See glPointSize. GL_POLYGON_SMOOTH If enabled, draw polygons with proper filtering. Otherwise, draw aliased polygons. See glPolygonMode. GL_POLYGON_STIPPLE If enabled, use the current polygon stipple pattern when rendering polygons. See glPolygonStipple. GL_SCISSOR_TEST If enabled, discard fragments that are outside the scissor rectangle. See glScissor. GL_STENCIL_TEST If enabled, do stencil testing and update the stencil buffer. See glStencilFunc and glStencilOp. GL_TEXTURE_1D If enabled, one-dimensional texturing is performed (unless two-dimensional texturing is also enabled). See glTexImage1D. GL_TEXTURE_2D If enabled, two-dimensional texturing is performed. See glTexImage2D. GL_TEXTURE_COORD_ARRAY_EXT If enabled, texture coordinates are taken from the texture coordinates array when glArrayElementEXT or glDrawArraysEXT is called. See glTexCoordPointerEXT, glArrayElementEXT and glDrawArraysEXT. GL_TEXTURE_GEN_Q If enabled, the q texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current q texture coordinate is used. See glTexGen. GL_TEXTURE_GEN_R If enabled, the r texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current r texture coordinate is used. See glTexGen. GL_TEXTURE_GEN_S If enabled, the s texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current s texture coordinate is used. See glTexGen. GL_TEXTURE_GEN_T If enabled, the t texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current t texture coordinate is used. See glTexGen. GL_VERTEX_ARRAY_EXT If enabled, vertexes are taken from the vertex array when glArrayElementEXT or glDrawArraysEXT is called. See glVertexPointerEXT, glArrayElementEXT and glDrawArraysEXT.
GL_INVALID_ENUM is generated if cap is not one of the values listed above. GL_INVALID_OPERATION is generated if glEnable or glDisable is executed between the execution of glBegin and the corresponding execution of glEnd.
glAlphaFunc, glBlendFunc, glClipPlane, glColorMaterial, glCullFace, glDepthFunc, glDepthRange, glFog, glGet, glIsEnabled, glLight, glLightModel, glLineWidth, glLineStipple, glLogicOp, glMap1, glMap2, glMaterial, glNormal, glPointSize, glPolygonMode, glPolygonStipple, glScissor, glStencilFunc, glStencilOp, glTexGen, glTexImage1D, glTexImage2D
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Last Edited: Mon, May 22, 1995