glDrawRangeElementsBaseVertex man page on Oracle
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GLDRAWRANGEELEMENTSB(3G) OpenGL Manual GLDRAWRANGEELEMENTSB(3G)
NAME
glDrawRangeElementsBaseVertex - render primitives from array data with
a per-element offset
C SPECIFICATION
void glDrawRangeElementsBaseVertex(GLenum mode, GLuint start,
GLuint end, GLsizei count,
GLenum type, GLvoid *indices,
GLint basevertex);
PARAMETERS
mode
Specifies what kind of primitives to render. Symbolic constants
GL_POINTS, GL_LINE_STRIP, GL_LINE_LOOP, GL_LINES,
GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLES,
GL_LINES_ADJACENCY, GL_LINE_STRIP_ADJACENCY,
GL_TRIANGLES_ADJACENCY, GL_TRIANGLE_STRIP_ADJACENCY and GL_PATCHES
are accepted.
start
Specifies the minimum array index contained in indices.
end
Specifies the maximum array index contained in indices.
count
Specifies the number of elements to be rendered.
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.
basevertex
Specifies a constant that should be added to each element of
indices when chosing elements from the enabled vertex arrays.
DESCRIPTION
glDrawRangeElementsBaseVertex is a restricted form of
glDrawElementsBaseVertex(). mode, start, end, count and basevertex
match the corresponding arguments to glDrawElementsBaseVertex(), with
the additional constraint that all values in the array indices must lie
between start and end, inclusive, prior to adding basevertex. Index
values lying outside the range [start, end] are treated in the same way
as glDrawElementsBaseVertex(). The ith element transferred by the
corresponding draw call will be taken from element indices[i] +
basevertex of each enabled array. If the resulting value is larger than
the maximum value representable by type, it is as if the calculation
were upconverted to 32-bit unsigned integers (with wrapping on overflow
conditions). The operation is undefined if the sum would be negative.
ERRORS
GL_INVALID_ENUM is generated if mode is not an accepted value.
GL_INVALID_VALUE is generated if count is negative.
GL_INVALID_VALUE is generated if end < start.
GL_INVALID_OPERATION is generated if a geometry shader is active and
mode is incompatible with the input primitive type of the geometry
shader in the currently installed program object.
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.
SEE ALSO
glDrawElements(), glDrawElementsBaseVertex(), glDrawRangeElements(),
glDrawElementsInstanced(), glDrawElementsInstancedBaseVertex()
COPYRIGHT
Copyright © 2010 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/.
AUTHORS
opengl.org
opengl.org 04/29/2014 GLDRAWRANGEELEMENTSB(3G)
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