double zMin = z, zMax = z + 1;
boolean renderAll = renderer.renderAllFaces;
boolean[] renderSide = {
renderAll || y <= 0 || block.shouldSideBeRendered(blockAccess, x, y - 1, z, 0),
renderAll || y >= worldHeight || block.shouldSideBeRendered(blockAccess, x, y + 1, z, 1),
renderAll || block.shouldSideBeRendered(blockAccess, x, y, z - 1, 2),
renderAll || block.shouldSideBeRendered(blockAccess, x, y, z + 1, 3),
renderAll || block.shouldSideBeRendered(blockAccess, x - 1, y, z, 4),
renderAll || block.shouldSideBeRendered(blockAccess, x + 1, y, z, 5),