void HexagonMirrorApp::drawArraysInstanced( const gl::VboMesh &vbo, GLint first, GLsizei count, size_t instanceCount )
{
vbo.enableClientStates();
vbo.bindAllData();
#if( defined GLEE_ARB_draw_instanced )
glDrawArraysInstancedARB( vbo.getPrimitiveType(), first, count, instanceCount );
#elif( defined GLEE_EXT_draw_instanced )
glDrawArraysInstancedEXT( vbo.getPrimitiveType(), first, count, instanceCount );
#else
// fall back to rendering a single instance
glDrawArrays( vbo.getPrimitiveType(), first, count );
#endif
gl::VboMesh::unbindBuffers();
vbo.disableClientStates();
}
void HexagonMirrorApp::drawRangeInstanced( const gl::VboMesh &vbo, size_t startIndex, size_t indexCount, size_t instanceCount )
{
if( vbo.getNumIndices() <= 0 )
return;
vbo.enableClientStates();
vbo.bindAllData();
#if( defined GLEE_ARB_draw_instanced )
glDrawElementsInstancedARB( vbo.getPrimitiveType(), indexCount, GL_UNSIGNED_INT, (GLvoid*)( sizeof(uint32_t) * startIndex ), instanceCount );
#elif( defined GLEE_EXT_draw_instanced )
glDrawElementsInstancedEXT( vbo.getPrimitiveType(), indexCount, GL_UNSIGNED_INT, (GLvoid*)( sizeof(uint32_t) * startIndex ), instanceCount );
#else
// fall back to rendering a single instance
glDrawElements( vbo.getPrimitiveType(), indexCount, GL_UNSIGNED_INT, (GLvoid*)( sizeof(uint32_t) * startIndex ) );
#endif
gl::VboMesh::unbindBuffers();
vbo.disableClientStates();
}