NAME fglDrawArrays - render primitives from array data FORTRAN SPECIFICATION SUBROUTINE fglDrawArrays( INTEGER*4 mode, INTEGER*4 first, INTEGER*4 count ) 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_QUAD_STRIP, GL_QUADS, and GL_POLYGON are accepted. first Specifies the starting index in the enabled arrays. count Specifies the number of indices to be rendered. DESCRIPTION fglDrawArrays specifies multiple geometric primitives with very few subroutine calls. Instead of calling a GL procedure to pass each individual vertex, normal, texture coordinate, edge flag, or color, you can prespecify separate arrays of vertexes, normals, and colors and use them to construct a sequence of primitives with a single call to fglDrawArrays. When fglDrawArrays is called, it uses count sequential elements from each enabled array to construct a sequence of geometric primitives, beginning with element first. mode specifies what kind of primitives are constructed, and how the array elements construct those primitives. If GL_VERTEX_ARRAY is not enabled, no geometric primitives are generated. Vertex attributes that are modified by fglDrawArrays have an unspecified value after fglDrawArrays returns. For example, if GL_COLOR_ARRAY is enabled, the value of the current color is undefined after fglDrawArrays executes. Attributes that aren't modified remain well defined. NOTES fglDrawArrays is available only if the GL version is 1.1 or greater. fglDrawArrays is included in display lists. If fglDrawArrays is entered into a display list, the necessary array data (determined by the array pointers and enables) is also entered into the display list. Because the array pointers and enables are client-side state, their values affect display lists when the lists are created, not when the lists are executed. ERRORS GL_INVALID_ENUM is generated if mode is not an accepted value. GL_INVALID_VALUE is generated if count is negative. GL_INVALID_OPERATION is generated if fglDrawArrays is executed between the execution of fglBegin and the corresponding fglEnd. SEE ALSO fglArrayElement, fglColorPointer, fglDrawElements, fglEdgeFlagPointer, fglGetPointerv, fglIndexPointer, fglInterleavedArrays, fglNormalPointer, fglTexCoordPointer, fglVertexPointer