From 7954642bfa166614536d8e2a97b00ee37e7314c5 Mon Sep 17 00:00:00 2001
From: RandomityGuy <31925790+RandomityGuy@users.noreply.github.com>
Date: Sat, 24 Dec 2022 19:44:29 +0530
Subject: [PATCH] fix tornado

---
 src/DtsObject.hx          | 4 ++++
 src/shaders/DtsTexture.hx | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/src/DtsObject.hx b/src/DtsObject.hx
index 6e1f48b0..6ebf0485 100644
--- a/src/DtsObject.hx
+++ b/src/DtsObject.hx
@@ -380,6 +380,8 @@ class DtsObject extends GameObject {
 					var dtsshader = new DtsTexture();
 					dtsshader.texture = texture;
 					dtsshader.currentOpacity = 1;
+					if (this.identifier == "Tornado")
+						dtsshader.normalizeNormals = false; // These arent normalized
 					material.mainPass.removeShader(material.textureShader);
 					material.mainPass.addShader(dtsshader);
 				}
@@ -391,6 +393,8 @@ class DtsObject extends GameObject {
 			if (material.texture == null && !iflMaterial) {
 				var dtsshader = new DtsTexture();
 				dtsshader.currentOpacity = 1;
+				if (this.identifier == "Tornado")
+					dtsshader.normalizeNormals = false; // These arent normalized
 				// Make a 1x1 white texture
 				#if hl
 				var bitmap = new hxd.BitmapData(1, 1);
diff --git a/src/shaders/DtsTexture.hx b/src/shaders/DtsTexture.hx
index ebd2453c..518a4527 100644
--- a/src/shaders/DtsTexture.hx
+++ b/src/shaders/DtsTexture.hx
@@ -14,6 +14,7 @@ class DtsTexture extends hxsl.Shader {
 		@const var specularAlpha:Bool;
 		@range(0, 1) @param var killAlphaThreshold:Float;
 		@param var texture:Sampler2D;
+		@const var normalizeNormals:Bool;
 		@perInstance @param var currentOpacity:Float;
 		var calculatedUV:Vec2;
 		var pixelColor:Vec4;
@@ -22,6 +23,11 @@ class DtsTexture extends hxsl.Shader {
 		function vertex() {
 			calculatedUV = input.uv;
 			transformedNormal = (input.normal * global.modelView.mat3());
+			if (normalizeNormals) {
+				var normalizednorm = transformedNormal.normalize();
+				transformedNormal = transformedNormal / (transformedNormal.x * transformedNormal.x + transformedNormal.y * transformedNormal.y
+					+ transformedNormal.z * transformedNormal.z);
+			}
 		}
 		function fragment() {
 			var c = texture.get(calculatedUV);
@@ -41,5 +47,6 @@ class DtsTexture extends hxsl.Shader {
 		super();
 		this.texture = tex;
 		killAlphaThreshold = h3d.mat.Defaults.defaultKillAlphaThreshold;
+		normalizeNormals = true;
 	}
 }