public static void drawShadedLine(int[] dest, int dest_off, int start_x, int end_x, int color_index, int grad) {
		int color;
		int loops;
		int off = 0;
		if (restrict_edges) {
			if (end_x > Graphics2D.viewportRx) {
				end_x = Graphics2D.viewportRx;
			}
			if (start_x < 0) {
				color_index -= start_x * off;
				start_x = 0;
			}
		}
		if (start_x < end_x) {
			dest_off += start_x;
			color_index += off * start_x;
			//if(1 != 1)//if the below code is dead only textured parts of models appear
			if (notTextured) {//ifNontexturedModel?
				loops = end_x - start_x >> 2;
				if (loops > 0) {
					off = (grad - color_index) * anIntArray1468[loops] >> 15;
				} else {
					off = 0;
				}
				if (alpha == 0) {
					if (loops > 0) {
						do {
							color = hsl2rgb[color_index >> 8];
							color_index += off;
							dest[dest_off++] = color;
							dest[dest_off++] = color;
							dest[dest_off++] = color;
							dest[dest_off++] = color;
						} while (--loops > 0);
					}
					loops = end_x - start_x & 0x3;
					if (loops > 0) {
						color = hsl2rgb[color_index >> 8];
						do {
							dest[dest_off++] = color;
						}
						while (--loops > 0);
					}
				} else {
					int src_alpha = alpha;
					int dest_alpha = 256 - alpha;
					if (loops > 0) {
						do {
							color = hsl2rgb[color_index >> 8];
							color_index += off;
							color = (((color & 0xff00ff) * dest_alpha >> 8 & 0xff00ff) + ((color & 0xff00)
									* dest_alpha >> 8 & 0xff00));
							int i = dest[dest_off];
							dest[dest_off++] = (color
									+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
									* src_alpha >> 8 & 0xff00));
							i = dest[dest_off];
							dest[dest_off++] = (color
									+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
									* src_alpha >> 8 & 0xff00));
							i = dest[dest_off];
							dest[dest_off++] = (color
									+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
									* src_alpha >> 8 & 0xff00));
							i = dest[dest_off];
							dest[dest_off++] = (color
									+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
									* src_alpha >> 8 & 0xff00));
						} while (--loops > 0);
					}
					loops = end_x - start_x & 0x3;
					if (loops > 0) {
						color = hsl2rgb[color_index >> 8];
						color = (((color & 0xff00ff) * dest_alpha >> 8 & 0xff00ff) + ((color & 0xff00)
								* dest_alpha >> 8 & 0xff00));
						do {
							int i = dest[dest_off];
							dest[dest_off++] = (color
									+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
									* src_alpha >> 8 & 0xff00));
						} while (--loops > 0);
					}
				}
			} else {
				int col_off = (grad - color_index) / (end_x - start_x);
				loops = end_x - start_x;
				if (alpha == 0) {
					do {
						dest[dest_off++] = hsl2rgb[color_index >> 8];
						color_index += col_off;
					} while (--loops > 0);
				} else {
					int src_alpha = alpha;
					int dest_alpha = 256 - alpha;
					do {
						color = hsl2rgb[color_index >> 8];
						color_index += col_off;
						color = (((color & 0xff00ff) * dest_alpha >> 8 & 0xff00ff) + ((color & 0xff00)
								* dest_alpha >> 8 & 0xff00));
						int i = dest[dest_off];
						dest[dest_off++] = (color
								+ ((i & 0xff00ff) * src_alpha >> 8 & 0xff00ff) + ((i & 0xff00)
								* src_alpha >> 8 & 0xff00));
					} while (--loops > 0);
				}
			}
		}
	}