pname
index
val
glGetMultisamplefv queries the location of a given sample. pname specifies the sample parameter to retrieve and must be GL_SAMPLE_POSITION. index corresponds to the sample for which the location should be returned. The sample location is returned as two floating-point values in val[0] and val[1], each between 0 and 1, corresponding to the x and y locations respectively in the GL pixel space of that sample. (0.5, 0.5) this corresponds to the pixel center. index must be between zero and the value of GL_SAMPLES minus one.
If the multisample mode does not have fixed sample locations, the returned values may only reflect the locations of samples within some pixels.
GL_INVALID_ENUM is generated if pname is not one GL_SAMPLE_POSITION.
GL_INVALID_VALUE is generated if index is greater than or equal to the value of GL_SAMPLES.
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OpenGL Version
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| Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 |
4.5
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| glGetMultisamplefv | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
✔
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glGenFramebuffers(), glBindFramebuffer()
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