From 426ad45876649595e2d4e9669ff1cf8c250fb163 Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Sun, 13 Feb 2011 05:15:18 +0100
Subject: late night commit with unfinished, half assed material/texture
 support

---
 NW4RTools/ColladaWriter.cs | 118 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 115 insertions(+), 3 deletions(-)

(limited to 'NW4RTools/ColladaWriter.cs')

diff --git a/NW4RTools/ColladaWriter.cs b/NW4RTools/ColladaWriter.cs
index b2fc5a2..b7c039a 100644
--- a/NW4RTools/ColladaWriter.cs
+++ b/NW4RTools/ColladaWriter.cs
@@ -19,6 +19,9 @@ namespace NW4RTools {
 
 		library_geometries LibGeometries;
 		library_visual_scenes LibVisualScenes;
+		library_images LibImages;
+		library_materials LibMaterials;
+		library_effects LibEffects;
 
 		private ColladaWriter(ResFile file) {
 			CurrentFile = file;
@@ -40,8 +43,70 @@ namespace NW4RTools {
 			Collada.asset.unit.meter = 1.0;
 			Collada.asset.up_axis = UpAxisType.Y_UP;
 			
-			List<object> ColladaItems = new List<object>();
-			
+			var ColladaItems = new List<object>();
+
+			// First up, before anything else: images and materials
+			// Compile a list of every texture we use in the model
+			var usedTextures = new List<string>();
+
+			foreach (var kv in CurrentModel.Materials) {
+				foreach (var texInfo in kv.Value.TextureInfos) {
+					if (!usedTextures.Contains(texInfo.TextureName))
+						usedTextures.Add(texInfo.TextureName);
+				}
+			}
+
+			// Create a Collada image for these
+			LibImages = new library_images();
+			ColladaItems.Add(LibImages);
+
+			var ImageList = new List<image>();
+			var TexGroup = CurrentFile.GetGroup<Texture>("Textures(NW4R)");
+
+			foreach (var texName in usedTextures) {
+				var img = new image();
+				var tex = TexGroup[texName];
+
+				img.name = "Texture-" + texName;
+				img.id = img.name;
+				img.Item = texName + ".png";
+
+				ImageList.Add(img);
+			}
+
+			LibImages.image = ImageList.ToArray();
+
+			// Make a quick reference material for each one
+			LibMaterials = new library_materials();
+			ColladaItems.Add(LibMaterials);
+
+			var MaterialList = new List<material>();
+
+			foreach (var kv in CurrentModel.Materials) {
+				var mat = new material();
+
+				mat.name = "Material-" + kv.Key;
+				mat.id = mat.name;
+				mat.instance_effect = new instance_effect();
+				mat.instance_effect.url = "#Material-Effect-" + kv.Key;
+
+				MaterialList.Add(mat);
+			}
+
+			LibMaterials.material = MaterialList.ToArray();
+
+			// Now create an effect for each material (this is where all the real work is done!)
+			LibEffects = new library_effects();
+			ColladaItems.Add(LibEffects);
+
+			var EffectList = new List<effect>();
+			foreach (var kv in CurrentModel.Materials) {
+				EffectList.Add(CreateEffectFromMaterial(kv.Key, kv.Value));
+			}
+
+			LibEffects.effect = EffectList.ToArray();
+
+			// Now shapes
 			LibGeometries = new library_geometries();
 			ColladaItems.Add(LibGeometries);
 			
@@ -98,7 +163,7 @@ namespace NW4RTools {
 					origNode.Translation.y,
 					-origNode.Scale.x * sinY,
 					origNode.Scale.y * sinX * cosY,
-					origNode.Scale.z * cosX * cosY,
+				origNode.Scale.z * cosX * cosY,
 					origNode.Translation.z,
 					0, 0, 0, 1
 				};
@@ -144,6 +209,8 @@ namespace NW4RTools {
 					Array.Resize<instance_geometry>(ref geoArrayCopy, geoArrayCopy.Length + 1);
 				geoArrayCopy[geoArrayCopy.Length - 1] = newGeoEntry;
 				cNode.instance_geometry = geoArrayCopy;
+
+				// TODO: Add material handling, I'll probably have to parse DrawOpa/DrawXlu for this...
 			}
 
 			/*foreach (var kv in CurrentModel.Shapes) {
@@ -172,6 +239,51 @@ namespace NW4RTools {
 
 
 
+		private effect CreateEffectFromMaterial(string name, Material mat) {
+			var eff = new effect();
+
+			eff.id = "Material-Effect-" + name;
+			eff.name = eff.id;
+
+			// this is based off what colladamax outputs
+			eff.Items = new effectFx_profile_abstractProfile_COMMON[1];
+			var profile = eff.Items[0] = new effectFx_profile_abstractProfile_COMMON();
+
+			// TODO: handle this correctly for multiple textures ETC and check how bb does it
+
+			// HACK!!
+			if (mat.TextureInfos.Count == 0)
+				return eff;
+
+			profile.Items = new object[2];
+
+			// create a surface newparam
+			var surfaceParam = new common_newparam_type();
+			var surface = new fx_surface_common();
+
+			surface.type = fx_surface_type_enum.Item2D;
+			surface.init_from = new fx_surface_init_from_common[1];
+			surface.init_from[0] = new fx_surface_init_from_common();
+			surface.init_from[0].Value = "Texture-" + mat.TextureInfos[0].TextureName;
+
+			surfaceParam.sid = "Surface-" + mat.TextureInfos[0].TextureName;
+			surfaceParam.ItemElementName = ItemChoiceType.surface;
+			surfaceParam.Item = surface;
+			profile.Items[0] = surfaceParam;
+
+			// now create a sampler newparam
+			var samplerParam = new common_newparam_type();
+			var sampler2d = new fx_sampler2D_common();
+
+			sampler2d.source = "Surface-" + mat.TextureInfos[0].TextureName;
+
+			samplerParam.ItemElementName = ItemChoiceType.sampler2D;
+			samplerParam.Item = sampler2d;
+			profile.Items[1] = samplerParam;
+
+			return eff;
+		}
+
 
 
 		private geometry CreateGeometryFromShape(string name, Shape shape) {
-- 
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