glMultiDrawElementsBaseVertex - render multiple sets of primitives by specifying indices of array data

voidglMultiDrawElementsBaseVertex(GLenummode,constGLsizei*count,GLenumtype,constGLvoid*const*indices,GLsizeidrawcount,constGLint*basevertex);

       Copyright © 2010-2014 Khronos Group

[FIXME: source]                                    11/18/2024                           GLMULTIDRAWELEMENTSB(3G)

glMultiDrawElementsBaseVertex behaves identically to glDrawElementsBaseVertex(), except that drawcount
       separate lists of elements are specifried instead.

       It has the same effect as:

               for (int i = 0; i < drawcount; i++)
                   if (count[i] > 0)
                       glDrawElementsBaseVertex(mode,
                                                count[i],
                                                type,
                                                indices[i],
                                                basevertex[i]);

GL_INVALID_ENUM is generated if mode is not an accepted value.

       GL_INVALID_VALUE is generated if drawcount is negative.

       GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to an enabled array or the
       element array and the buffer object's data store is currently mapped.

       glMultiDrawElementsBaseVertex - render multiple sets of primitives by specifying indices of array data
       elements and an index to apply to each index

glMultiDrawElementsBaseVertex is available only if the GL version is 3.1 or greater.

       GL_LINE_STRIP_ADJACENCY, GL_LINES_ADJACENCY, GL_TRIANGLE_STRIP_ADJACENCY and GL_TRIANGLES_ADJACENCY are
       available only if the GL version is 3.2 or greater.

mode
           Specifies what kind of primitives to render. Symbolic constants GL_POINTS, GL_LINE_STRIP,
           GL_LINE_LOOP, GL_LINES, GL_LINE_STRIP_ADJACENCY, GL_LINES_ADJACENCY, GL_TRIANGLE_STRIP,
           GL_TRIANGLE_FAN, GL_TRIANGLES, GL_TRIANGLE_STRIP_ADJACENCY, GL_TRIANGLES_ADJACENCY and GL_PATCHES are
           accepted.

       count
           Points to an array of the elements counts.

       type
           Specifies the type of the values in indices. Must be one of GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, or
           GL_UNSIGNED_INT.

       indices
           Specifies a pointer to the location where the indices are stored.

       drawcount
           Specifies the size of the count, indices and basevertex arrays.

       basevertex
           Specifies a pointer to the location where the base vertices are stored.

glMultiDrawElements(), glDrawElementsBaseVertex(), glDrawArrays(), glVertexAttribPointer()

       ┌───────────────────────────────┬───────────────────────────────────────────────────────────────────────┐
       │                               │                OpenGLVersion                                         │
       ├───────────────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │ Function                      │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
       │ /                             │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Feature                       │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Name                          │     │     │     │     │     │     │     │     │     │     │     │     │
       ├───────────────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glMultiDrawElementsBaseVertex │  -  │  -  │  -  │  -  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └───────────────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘