I am trying to use glGetQueryObjectiv( ) in a MacOS project and it fails, throwing and INVALID ENUM error for both GL_QUERY_RESULT and for GL_QUERY_RESULT_AVAILABLE as the argument, i.e.
if(doPick)
{
glEnable(GL_SCISSOR_TEST);
[self setIsPicked: NO];
glGenQueries(1 , &queryId );
glBeginQuery(GL_SAMPLES_PASSED, queryId);
}
modelMatrix = GLKMatrix4Multiply( modelMatrix , viewRotation );
glUniformMatrix4fv(p_matrix_loc, 1, GL_FALSE, projectionMatrix.m);
glUniformMatrix4fv(m_matrix_loc, 1, GL_FALSE, modelMatrix.m);
glBindVertexArray(vao[0]);
glDrawArrays(GL_TRIANGLES, 0, 8 * 3);
if(doPick)
{
glEndQuery( queryId );
queryReady = 0;
glGetQueryObjectiv(queryId, GL_QUERY_RESULT_AVAILABLE, &queryReady);
if( queryReady
{
hits = 0;
glGetQueryObjectuiv(queryId, GL_QUERY_RESULT, &hits);
}
if( hits > 0)
[self setIsPicked: YES];
else
[self setIsPicked: NO];
glDeleteQueries( 1 , &queryId );
glDisable(GL_SCISSOR_TEST);
}
Would anybody know what's going wrong and how I could get this to work. Those enums should be valid.
