From d23667634e21f79f9b4ddb7a66a76b6dd294b692 Mon Sep 17 00:00:00 2001
From: gonchar <unknownflasher@gmail.com>
Date: Sat, 25 Jan 2014 02:07:24 +0100
Subject: [PATCH] Texture LOD bias support

usage example "tex t0, v1, s0 <2d,repeat,linear,miplinear,bias40>"
---
 .../engine3d/materials/compiler/SamplerVariable.as         | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/alternativa/engine3d/materials/compiler/SamplerVariable.as b/src/alternativa/engine3d/materials/compiler/SamplerVariable.as
index 6a21bbb..81bacfd 100644
--- a/src/alternativa/engine3d/materials/compiler/SamplerVariable.as
+++ b/src/alternativa/engine3d/materials/compiler/SamplerVariable.as
@@ -100,6 +100,13 @@ package alternativa.engine3d.materials.compiler {
 					case "clamp":
 						upperCode &= ~(0xf00000);
 						break;
+					default:
+						//Texture LOD bias, usage example tex t0, v1, s0 <2d,repeat,linear,miplinear,bias40>
+						if(op.indexOf("bias")>-1) {
+							var bias:int = int(op.slice(4,op.length)) << 16;
+							lowerCode &= ~(0xff0000);
+							lowerCode |= bias;
+						}
 				}
 			}
 		}