enum: ewol::openGL::openGlFlags
Description:
Value list
Detail:
FLAG_BLEND
FLAG_BLEND = <0
If enabled, blend the computed fragment color values with the values in the color buffers. See glBlendFunc.
FLAG_CLIP_DISTANCE_I
FLAG_CLIP_DISTANCE_I = <1
If enabled, clip geometry against user-defined half space i.
FLAG_COLOR_LOGIC_OP
FLAG_COLOR_LOGIC_OP = <2
If enabled, apply the currently selected logical operation to the computed fragment color and color buffer values. See glLogicOp.
FLAG_CULL_FACE
FLAG_CULL_FACE = <3
If enabled, cull polygons based on their winding in window coordinates. See glCullFace.
FLAG_DEBUG_OUTPUT
FLAG_DEBUG_OUTPUT = <4
If enabled, debug messages are produced by a debug context. When disabled, the debug message log is silenced. Note that in a non-debug context, very few, if any messages might be produced, even when GL_DEBUG_OUTPUT is enabled.
FLAG_DEBUG_OUTPUT_SYNCHRONOUS
FLAG_DEBUG_OUTPUT_SYNCHRONOUS = <5
If enabled, debug messages are produced synchronously by a debug context. If disabled, debug messages may be produced asynchronously. In particular, they may be delayed relative to the execution of GL commands, and the debug callback function may be called from a thread other than that in which the commands are executed. See glDebugMessageCallback.
FLAG_DEPTH_CLAMP
FLAG_DEPTH_CLAMP = <6
If enabled, the -wc≤zc≤wc plane equation is ignored by view volume clipping (effectively, there is no near or far plane clipping). See glDepthRange.
FLAG_DEPTH_TEST
FLAG_DEPTH_TEST = <7
If enabled, do depth comparisons and update the depth buffer. Note that even if the depth buffer exists and the depth mask is non-zero, the depth buffer is not updated if the depth test is disabled. See glDepthFunc and glDepthRange.
FLAG_DITHER
FLAG_DITHER = <8
If enabled, dither color components or indices before they are written to the color buffer.
FLAG_FRAMEBUFFER_SRGB
FLAG_FRAMEBUFFER_SRGB = <9
If enabled and the value of GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the framebuffer attachment corresponding to the destination buffer is GL_SRGB, the R, G, and B destination color values (after conversion from fixed-point to floating-point) are considered to be encoded for the sRGB color space and hence are linearized prior to their use in blending.
FLAG_LINE_SMOOTH
FLAG_LINE_SMOOTH = <10
If enabled, draw lines with correct filtering. Otherwise, draw aliased lines. See glLineWidth.
FLAG_MULTISAMPLE
FLAG_MULTISAMPLE = <11
If enabled, use multiple fragment samples in computing the final color of a pixel. See glSampleCoverage.
FLAG_POLYGON_OFFSET_FILL
FLAG_POLYGON_OFFSET_FILL = <12
If enabled, and if the polygon is rendered in GL_FILL mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
FLAG_POLYGON_OFFSET_LINE
FLAG_POLYGON_OFFSET_LINE = <13
If enabled, and if the polygon is rendered in GL_LINE mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
FLAG_POLYGON_OFFSET_POINT
FLAG_POLYGON_OFFSET_POINT = <14
If enabled, an offset is added to depth values of a polygon's fragments before the depth comparison is performed, if the polygon is rendered in GL_POINT mode. See glPolygonOffset.
FLAG_POLYGON_SMOOTH
FLAG_POLYGON_SMOOTH = <15
If enabled, draw polygons with proper filtering. Otherwise, draw aliased polygons. For correct antialiased polygons, an alpha buffer is needed and the polygons must be sorted front to back.
FLAG_PRIMITIVE_RESTART
FLAG_PRIMITIVE_RESTART = <16
enables primitive restarting. If enabled, any one of the draw commands which transfers a set of generic attribute array elements to the GL will restart the primitive when the index of the vertex is equal to the primitive restart index. See glPrimitiveRestartIndex.
FLAG_PRIMITIVE_RESTART_FIXED_INDEX
FLAG_PRIMITIVE_RESTART_FIXED_INDEX = <17
enables primitive restarting with a fixed index. If enabled, any one of the draw commands which transfers a set of generic attribute array elements to the GL will restart the primitive when the index of the vertex is equal to the fixed primitive index for the specified index type. The fixed index is equal to 2n−1 where n is equal to 8 for GL_UNSIGNED_BYTE, 16 for GL_UNSIGNED_SHORT and 32 for GL_UNSIGNED_INT.
FLAG_SAMPLE_ALPHA_TO_COVERAGE
FLAG_SAMPLE_ALPHA_TO_COVERAGE = <18
If enabled, compute a temporary coverage value where each bit is determined by the alpha value at the corresponding sample location. The temporary coverage value is then ANDed with the fragment coverage value.
FLAG_SAMPLE_ALPHA_TO_ONE
FLAG_SAMPLE_ALPHA_TO_ONE = <19
If enabled, each sample alpha value is replaced by the maximum representable alpha value.
FLAG_SAMPLE_COVERAGE
FLAG_SAMPLE_COVERAGE = <20
If enabled, the fragment's coverage is ANDed with the temporary coverage value. If GL_SAMPLE_COVERAGE_INVERT is set to GL_TRUE, invert the coverage value. See glSampleCoverage.
FLAG_SAMPLE_SHADING
FLAG_SAMPLE_SHADING = <21
If enabled, the active fragment shader is run once for each covered sample, or at fraction of this rate as determined by the current value of GL_MIN_SAMPLE_SHADING_VALUE. See glMinSampleShading.
FLAG_SAMPLE_MASK
FLAG_SAMPLE_MASK = <22
If enabled, the sample coverage mask generated for a fragment during rasterization will be ANDed with the value of GL_SAMPLE_MASK_VALUE before shading occurs. See glSampleMaski.
FLAG_SCISSOR_TEST
FLAG_SCISSOR_TEST = <23
If enabled, discard fragments that are outside the scissor rectangle. See glScissor.
FLAG_STENCIL_TEST
FLAG_STENCIL_TEST = <24
If enabled, do stencil testing and update the stencil buffer. See glStencilFunc and glStencilOp. GL_TEXTURE_CUBE_MAP_SEAMLESS = 1<<0, //!< If enabled, cubemap textures are sampled such that when linearly sampling from the border between two adjacent faces, texels from both faces are used to generate the final sample value. When disabled, texels from only a single face are used to construct the final sample value.
FLAG_PROGRAM_POINT_SIZE
FLAG_PROGRAM_POINT_SIZE = <25
If enabled and a vertex or geometry shader is active, then the derived point size is taken from the (potentially clipped) shader builtin gl_PointSize and clamped to the implementation-dependent point size range.
FLAG_TEXTURE_2D
FLAG_TEXTURE_2D = <26
FLAG_ALPHA_TEST
FLAG_ALPHA_TEST = <27
FLAG_FOG
FLAG_FOG = <28