From 15d41f4c1e0ae38e7327d2b8e67f2bbef1f9c2d3 Mon Sep 17 00:00:00 2001
From: Peter Schaefer <schaeferpm@gmail.com>
Date: Sat, 16 May 2015 17:43:04 +0200
Subject: [PATCH] BBMeshTrees are drawable now (but be carefull with deepLVL)

---
 Weave/Graphix/Model/IMesh.cpp     | 50 +++++++++++++++++++++++++++++++
 Weave/Graphix/Model/IMesh.h       |  6 ++++
 Weave/Graphix/Model/IMetaMesh.cpp | 14 +++++----
 3 files changed, 65 insertions(+), 5 deletions(-)

diff --git a/Weave/Graphix/Model/IMesh.cpp b/Weave/Graphix/Model/IMesh.cpp
index 5ea54e6..83dc7f2 100644
--- a/Weave/Graphix/Model/IMesh.cpp
+++ b/Weave/Graphix/Model/IMesh.cpp
@@ -22,6 +22,9 @@ typedef IMesh::Node Node;
 
 // Vergleiche Unterbaum
 //#define COMPARE_MTREE
+//draw BBox of MTREE deep LVL -1 means all lvl's
+#define BBOX_MTREE 7
+
 // Vergleiche auch Triangles
 #define COMPARE_FACE
 // Fordere mindestens prozentuelles gleichgewicht .1 = 10%
@@ -90,6 +93,38 @@ void IMesh::useModelMat(const mat4& _model, Shader* _shader) const
 		glUniformMatrix4fv(tmp, 1, GL_FALSE, value_ptr(_model* modelMat));
 }
 
+
+void drawSubBBox(const mat4& _modelMat, const vec4& _color, Node* _node, int _lvl)
+{
+	vec3 BBsiz, BBpos;
+	_node->getBBcs(BBpos, BBsiz);
+	Graphix::getGlError();
+	Graphix::shader_BBox->useShader();
+	int tmp = Graphix::shader_BBox->getUniformLocation("uFragmentColor");
+	if (tmp >= 0)
+		glUniform4fv(tmp, 1, value_ptr(_color));
+	Graphix::getGlError();
+	Model::getBBoxModel()->drawModel(Graphix::shader_BBox, NULL, _modelMat*translate(BBpos)*glm::scale(BBsiz*2.f));
+
+	if (_lvl == 0)
+		return;
+	if (_node->getLNode() != nullptr)
+		drawSubBBox(_modelMat, _color*.9f, _node->getLNode(), _lvl - 1);
+	if (_node->getUNode() != nullptr)
+		drawSubBBox(_modelMat, _color*.9f, _node->getUNode(), _lvl - 1);
+
+	
+}
+
+void IMesh::drawBBox(const mat4& _modelMat, const vec4& _color) const
+{
+#if !defined(COMPARE_MTREE) || !defined(BBOX_MTREE)
+	Model::drawBBox(_modelMat, _color);
+#else
+	drawSubBBox(_modelMat, _color, root, BBOX_MTREE);
+#endif
+}
+
 //void IMesh::drawModel(Shader* _shader, Texture* _texture, const mat4& _modelMat) const
 //{
 //
@@ -322,3 +357,18 @@ vec3 Node::getMean() const
 	return mean;
 }
 
+Node* Node::getLNode() const
+{
+	return lNode;
+}
+
+Node* Node::getUNode() const
+{
+	return uNode;
+}
+
+Model::Triangle* Node::getElement() const
+{
+	return element;
+}
+
diff --git a/Weave/Graphix/Model/IMesh.h b/Weave/Graphix/Model/IMesh.h
index 4a3c6e1..bc29c51 100644
--- a/Weave/Graphix/Model/IMesh.h
+++ b/Weave/Graphix/Model/IMesh.h
@@ -26,6 +26,8 @@ public:
 
 	//void bindShader(Shader* shader);
 
+	void drawBBox(const mat4& modelMat, const vec4& color = vec4(0.9f, 0.f, 0.f, 1.f)) const override;
+
 	Overlap checkColS2O(const mat4& mMat, const Model* model, const mat4& modelMat) const override;
 	Overlap checkColO2SBox(const mat4& mMat, const vec3& pos, const vec3& size, const mat4& modelMat) const override;
 	Overlap checkColO2STriangle(const mat4& mMat, const vec3& pos, const mat3& directions) const override;
@@ -52,6 +54,10 @@ public:
 		/* get mean*/
 		vec3 getMean() const;
 
+		Node* getLNode() const;
+		Node* getUNode() const;
+		Model::Triangle* getElement() const;
+
 	private:
 		vec3 center;
 		vec3 size;
diff --git a/Weave/Graphix/Model/IMetaMesh.cpp b/Weave/Graphix/Model/IMetaMesh.cpp
index 7e7f14b..5388319 100644
--- a/Weave/Graphix/Model/IMetaMesh.cpp
+++ b/Weave/Graphix/Model/IMetaMesh.cpp
@@ -90,15 +90,19 @@ void IMetaMesh::drawModel(Shader* _shader, Texture* _texture, const mat4& _model
 
 void IMetaMesh::drawBBox(const mat4& _modelMat,const vec4& _color) const
 {
-	Model::drawBBox(_modelMat, _color);
-	if (models.size() > 1)
+	if (models.size() == 1)
+		models.front()->drawBBox(_modelMat, _color);
+	else
 	{
-		for (auto i = models.begin(); i != models.end(); ++i)
+		Model::drawBBox(_modelMat, _color);
+		if (models.size() > 1)
 		{
-			(*i)->drawBBox(_modelMat, _color*0.8f);
+			for (auto i = models.begin(); i != models.end(); ++i)
+			{
+				(*i)->drawBBox(_modelMat, _color*0.8f);
+			}
 		}
 	}
-
 }
 
 Overlap IMetaMesh::checkColS2O(const mat4& _mMat, const Model* _model, const mat4& _modelMat) const
-- 
2.47.3