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TEXTUREQUERYLOD(3G) | [FIXME: manual] | TEXTUREQUERYLOD(3G) |
NAME¶
textureQueryLod - compute the level-of-detail that would be used to sample from a textureDECLARATION¶
vec2 textureQueryLod(gsampler1D sampler,
float P);
vec2 textureQueryLod(gsampler2D sampler,
vec2 P);
vec2 textureQueryLod(gsampler3D sampler,
vec3 P);
vec2
textureQueryLod(gsamplerCube sampler,
vec3 P);
vec2
textureQueryLod(gsampler1DArray sampler,
float P);
vec2
textureQueryLod(gsampler2DDArray sampler,
vec2 P);
vec2
textureQueryLod(gsamplerCubeArray sampler,
vec3 P);
vec2
textureQueryLod(gsampler1DShadow sampler,
float P);
vec2
textureQueryLod(gsampler2DShadow sampler,
vec2 P);
vec2
textureQueryLod(gsamplerCubeShadow sampler,
vec3 P);
vec2
textureQueryLod(gsampler1DArrayShadow sampler,
float P);
vec2
textureQueryLod(gsampler2DArrayShadow sampler,
vec2 P);
vec2
textureQueryLod(gsamplerCubeArrayShadow sampler,
vec3 P);
PARAMETERS¶
samplerSpecifies the sampler to which the texture whose
level-of-detail will be queried is bound.
P
Specifies the texture coordinates at which the
level-of-detail will be queried.
DESCRIPTION¶
Available only in the fragment shader, textureQueryLod computes the level-of-detail that would be used to sample from a texture. The mipmap array(s) that would be accessed is returned in the x component of the return value. The computed level-of-detail relative to the base level is returned in the y component of the return value. If called on an incomplete texture, the result of the operation is undefined.VERSION SUPPORT¶
OpenGL Shading Language Version | ||||||||||||
Function Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
textureQueryLod | - | - | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
SEE ALSO¶
texelFetch(), texelFetchOffset(), texture(), textureGather(), textureGatherOffset(), textureGatherOffsets(), textureGrad(), textureGradOffset(), textureLod(), textureLodOffset(), textureOffset(), textureProj(), textureProjGrad(), textureProjGradOffset(), textureProjLod(), textureProjLodOffset(), textureProjOffset(), textureSize()COPYRIGHT¶
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.COPYRIGHT¶
Copyright © 2011-2014 Khronos Group08/26/2014 | [FIXME: source] |