From d95f18442ea216a886bfddf75d349362d1e537bc Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Fri, 11 Jul 2014 19:37:17 +0000
Subject: Support material layer blending.

---
 src/model/material.cc | 57 +++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 48 insertions(+), 9 deletions(-)

(limited to 'src/model/material.cc')

diff --git a/src/model/material.cc b/src/model/material.cc
index 0f3487c..d4accc8 100644
--- a/src/model/material.cc
+++ b/src/model/material.cc
@@ -63,12 +63,16 @@ void Material::print()
 			con_print << "bounds ";
 		}
 	}
-	con_print << "  layers:         " << layers().size() << std::endl;
+
+	int count = 0;
 	
 	for (Layers::const_iterator lit = material_layers.begin(); lit != material_layers.end(); ++lit) {
 		const Layer *layer = (*lit);
 		
-		con_print << "  - texture: ";
+		count++;
+		con_print << "  layer " << count << std::endl;
+		
+		con_print << "    texture: ";
 		if (layer->texmap() == Layer::TexMapNone) {
 			con_print << "none";
 		} else if (layer->texmap() == Layer::TexMapImage) {
@@ -76,9 +80,9 @@ void Material::print()
 		}
 		con_print << std::endl;
 		
-		con_print << "    color:   " << layer->color() << std::endl;
+		con_print << "    color:       " << layer->color() << std::endl;
 		
-		con_print << "    rgbgen:  ";
+		con_print << "    rgbgen:     ";		
 		switch (layer->rgbgen()) {
 			case Layer::RGBGenIdentity:
 				con_print << "identity";
@@ -100,6 +104,21 @@ void Material::print()
 				break;
 		}
 		con_print << std::endl;
+		
+		if (layer->fullbright()) {
+			con_print << "    fullbright" << std::endl;
+		}
+		
+		switch(layer->blendfunc()) {
+			case Layer::BlendFuncNone:
+				break;
+			case Layer::BlendFuncAdd:
+				con_print << "    blendfunc:  add" << std::endl;
+				break;
+			case Layer::BlendFuncBlend:
+				con_print << "    blendfunc:  blend" << std::endl;
+				break;
+		}
 	}
 }
 
@@ -298,11 +317,26 @@ void Material::load_shaderfile(const std::string &shadername)
 					layer->set_rgbgen(Layer::RGBGenSecondary);
 				} else if (firstword.compare("entitythird") == 0) {
 					layer->set_rgbgen(Layer::RGBGenTertiary);
-				} else if (firstword.compare("bright") == 0) {
-					layer->set_bright(true);
+				} else if ((firstword.compare("bright") == 0) || (firstword.compare("fullbright") == 0)) {
+					layer->set_fullbright(true);
 				} else if (firstword.compare("environment") == 0) {
 					layer->set_tcgen(Layer::TCGenEnvironment);
-					layer->set_texmap(Layer::TexMapEnvironment);					
+					layer->set_texmap(Layer::TexMapEnvironment);
+				} else if (firstword.compare("blendfunc") == 0) {
+					if (linestream >> firstword) {
+						aux::to_lowercase(firstword);
+						if (firstword.compare("none") == 0) {
+							layer->set_blendfunc(Layer::BlendFuncNone);
+						} else if (firstword.compare("add") == 0) {
+							layer->set_blendfunc(Layer::BlendFuncAdd);
+						} else if (firstword.compare("blend") == 0) {
+							layer->set_blendfunc(Layer::BlendFuncBlend);
+						} else {
+							con_warn << shaderfile.name() << " unknown blend function '" << firstword << "' at line " << linenumber << std::endl;
+						}
+					} else {
+						con_warn << shaderfile.name() << " missing blend function at line " << linenumber << std::endl;
+					}
 				} else if (firstword.compare("map") == 0) {
 					
 					if (linestream >> firstword) {
@@ -323,6 +357,8 @@ void Material::load_shaderfile(const std::string &shadername)
 								}
 							}
 						}
+					} else {
+						con_warn << shaderfile.name() << " missing texture map at line " << linenumber << std::endl;
 					}
 				} else {
 					con_warn << shaderfile.name() << " unknown layer key '" << firstword << "' at line " << linenumber << std::endl;
@@ -357,7 +393,7 @@ Material *Material::find(const std::string &name)
 	return 0;
 }
 
-Material *Material::load(const std::string &name, const bool bright)
+Material *Material::load(const std::string &name, const bool ui_texture)
 {
 	// check if the requested material already exist
 	Material *material = find(name);
@@ -374,7 +410,10 @@ Material *Material::load(const std::string &name, const bool bright)
 	
 	// add a texture
 	layer->set_texture(name);
-	layer->set_bright(bright);
+	if (ui_texture) {
+		layer->set_fullbright(true);
+		layer->set_blendfunc(Layer::BlendFuncBlend);
+	}	
 	if (material_imageloaderfunc) {
 		material_imageloaderfunc(layer);
 		if ((layer->size().width() > 0) && (layer->size().height() > 0)) {
-- 
cgit v1.2.3