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glmultidrawelementsbasevertex(3g) [centos man page]

GLMULTIDRAWELEMENTSB(3G)					   OpenGL Manual					  GLMULTIDRAWELEMENTSB(3G)

NAME
glMultiDrawElementsBaseVertex - render multiple sets of primitives by specifying indices of array data elements and an index to apply to each index C SPECIFICATION
void glMultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount, GLint *basevertex); PARAMETERS
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. primcount Specifies the size of the count array. basevertex Specifies a pointer to the location where the base vertices are stored. DESCRIPTION
glMultiDrawElementsBaseVertex behaves identically to glDrawElementsBaseVertex(), except that primcount separate lists of elements are specifried instead. It has the same effect as: for (int i = 0; i < primcount; i++) if (count[i] > 0) glDrawElementsBaseVertex(mode, count[i], type, indices[i], basevertex[i]); NOTES
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. ERRORS
GL_INVALID_ENUM is generated if mode is not an accepted value. GL_INVALID_VALUE is generated if primcount 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. SEE ALSO
glMultiDrawElements(), glDrawElementsBaseVertex(), glDrawArrays(), glVertexAttribPointer() COPYRIGHT
Copyright (C) 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 06/10/2014 GLMULTIDRAWELEMENTSB(3G)

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GLDRAWELEMENTSINSTAN(3G)					   OpenGL Manual					  GLDRAWELEMENTSINSTAN(3G)

NAME
glDrawElementsInstanced - draw multiple instances of a set of elements C SPECIFICATION
void glDrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void * indices, GLsizei primcount); PARAMETERS
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 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. primcount Specifies the number of instances of the specified range of indices to be rendered. DESCRIPTION
glDrawElementsInstanced behaves identically to glDrawElements() except that primcount instances of the set of elements are executed and the value of the internal counter instanceID advances for each iteration. instanceID is an internal 32-bit integer counter that may be read by a vertex shader as gl_InstanceID. glDrawElementsInstanced has the same effect as: if (mode, count, or type is invalid ) generate appropriate error else { for (int i = 0; i < primcount ; i++) { instanceID = i; glDrawElements(mode, count, type, indices); } instanceID = 0; } NOTES
glDrawElementsInstanced 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. ERRORS
GL_INVALID_ENUM is generated if mode is not one of GL_POINTS, GL_LINE_STRIP, GL_LINE_LOOP, GL_LINES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, or GL_TRIANGLES. GL_INVALID_VALUE is generated if count or primcount are negative. 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 and the buffer object's data store is currently mapped. SEE ALSO
glDrawElements(), glDrawArraysInstanced() COPYRIGHT
Copyright (C) 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 06/10/2014 GLDRAWELEMENTSINSTAN(3G)
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