/*************************************************************************/
/*  spatial_editor_gizmos.cpp                                            */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "spatial_editor_gizmos.h"
#include "geometry.h"
#include "scene/3d/camera.h"
#include "scene/resources/surface_tool.h"
#include "scene/resources/sphere_shape.h"
#include "scene/resources/box_shape.h"
#include "scene/resources/capsule_shape.h"
#include "scene/resources/ray_shape.h"
#include "scene/resources/convex_polygon_shape.h"
#include "scene/resources/plane_shape.h"
#include "editor_shape_gizmos.h"

// Keep small children away from this file.
// It's so ugly it will eat them alive

#define HANDLE_HALF_SIZE 0.05

void SpatialGizmoTool::clear() {

	for(int i=0;i<instances.size();i++) {

		if (instances[i].instance.is_valid())
			VS::get_singleton()->free(instances[i].instance);


	}

	collision_segments.clear();
	collision_mesh=Ref<TriangleMesh>();
	instances.clear();
	handles.clear();
	secondary_handles.clear();
}

void SpatialGizmoTool::Instance::create_instance(Spatial *p_base) {

	instance = VS::get_singleton()->instance_create2(mesh->get_rid(),p_base->get_world()->get_scenario());
	VS::get_singleton()->instance_attach_object_instance_ID(instance,p_base->get_instance_ID());
	if (billboard)
		VS::get_singleton()->instance_geometry_set_flag(instance,VS::INSTANCE_FLAG_BILLBOARD,true);
	if (unscaled)
		VS::get_singleton()->instance_geometry_set_flag(instance,VS::INSTANCE_FLAG_DEPH_SCALE,true);
	if (skeleton.is_valid())
		VS::get_singleton()->instance_attach_skeleton(instance,skeleton);
	if (extra_margin)
		VS::get_singleton()->instance_set_extra_visibility_margin(instance,1);
	VS::get_singleton()->instance_geometry_set_flag(instance,VS::INSTANCE_FLAG_CAST_SHADOW,false);
	VS::get_singleton()->instance_geometry_set_flag(instance,VS::INSTANCE_FLAG_RECEIVE_SHADOWS,false);
}



void SpatialGizmoTool::add_mesh(const Ref<Mesh>& p_mesh,bool p_billboard, const RID &p_skeleton) {

	ERR_FAIL_COND(!spatial_node);
	Instance ins;

	ins.billboard=p_billboard;
	ins.mesh=p_mesh;
	ins.skeleton=p_skeleton;
	if (valid) {
		ins.create_instance(spatial_node);
		VS::get_singleton()->instance_set_transform(ins.instance,spatial_node->get_global_transform());
	}

	instances.push_back(ins);

}

void SpatialGizmoTool::add_lines(const Vector<Vector3> &p_lines, const Ref<Material> &p_material,bool p_billboard){

	ERR_FAIL_COND(!spatial_node);
	Instance ins;

	Ref<Mesh> mesh = memnew( Mesh );
	Array a;
	a.resize(Mesh::ARRAY_MAX);
	a[Mesh::ARRAY_VERTEX]=p_lines;
	mesh->add_surface(Mesh::PRIMITIVE_LINES,a);
	mesh->surface_set_material(0,p_material);


	ins.billboard=p_billboard;
	ins.mesh=mesh;
	if (valid) {
		ins.create_instance(spatial_node);
		VS::get_singleton()->instance_set_transform(ins.instance,spatial_node->get_global_transform());
	}

	instances.push_back(ins);

}

void SpatialGizmoTool::add_unscaled_billboard(const Ref<Material>& p_material,float p_scale) {

	ERR_FAIL_COND(!spatial_node);
	Instance ins;

	Vector<Vector3 > vs;
	Vector<Vector2 > uv;

	vs.push_back(Vector3(-p_scale,p_scale,0));
	vs.push_back(Vector3(p_scale,p_scale,0));
	vs.push_back(Vector3(p_scale,-p_scale,0));
	vs.push_back(Vector3(-p_scale,-p_scale,0));

	uv.push_back(Vector2(1,0));
	uv.push_back(Vector2(0,0));
	uv.push_back(Vector2(0,1));
	uv.push_back(Vector2(1,1));

	Ref<Mesh> mesh = memnew( Mesh );
	Array a;
	a.resize(Mesh::ARRAY_MAX);
	a[Mesh::ARRAY_VERTEX]=vs;
	a[Mesh::ARRAY_TEX_UV]=uv;
	mesh->add_surface(Mesh::PRIMITIVE_TRIANGLE_FAN,a);
	mesh->surface_set_material(0,p_material);


	ins.mesh=mesh;
	ins.unscaled=true;
	ins.billboard=true;
	if (valid) {
		ins.create_instance(spatial_node);
		VS::get_singleton()->instance_set_transform(ins.instance,spatial_node->get_global_transform());
	}

	instances.push_back(ins);


}

void SpatialGizmoTool::add_collision_triangles(const Ref<TriangleMesh>& p_tmesh) {

	collision_mesh=p_tmesh;
}

void SpatialGizmoTool::add_collision_segments(const Vector<Vector3> &p_lines) {

	int from=collision_segments.size();
	collision_segments.resize(from+p_lines.size());
	for(int i=0;i<p_lines.size();i++) {

		collision_segments[from+i]=p_lines[i];
	}
}


void SpatialGizmoTool::add_handles(const Vector<Vector3> &p_handles, bool p_billboard,bool p_secondary){

	ERR_FAIL_COND(!spatial_node);

	ERR_FAIL_COND(!spatial_node);
	Instance ins;

	billboard_handle=p_billboard;

	Ref<Mesh> mesh = memnew( Mesh );
#if 1

	Array a;
	a.resize(VS::ARRAY_MAX);
	a[VS::ARRAY_VERTEX]=p_handles;
	mesh->add_surface(Mesh::PRIMITIVE_POINTS,a);
	mesh->surface_set_material(0,SpatialEditorGizmos::singleton->handle2_material);


#else
	for(int ih=0;ih<p_handles.size();ih++) {


		Vector<Vector3> vertices;
		Vector<Vector3> normals;

		int vtx_idx=0;
#define ADD_VTX(m_idx);\
	vertices.push_back( (face_points[m_idx]*HANDLE_HALF_SIZE+p_handles[ih]) );\
	normals.push_back( normal_points[m_idx] );\
	vtx_idx++;\

		for (int i=0;i<6;i++) {


			Vector3 face_points[4];
			Vector3 normal_points[4];
			float uv_points[8]={0,0,0,1,1,1,1,0};

			for (int j=0;j<4;j++) {

				float v[3];
				v[0]=1.0;
				v[1]=1-2*((j>>1)&1);
				v[2]=v[1]*(1-2*(j&1));

				for (int k=0;k<3;k++) {

					if (i<3)
						face_points[j][(i+k)%3]=v[k]*(i>=3?-1:1);
					else
						face_points[3-j][(i+k)%3]=v[k]*(i>=3?-1:1);
				}
				normal_points[j]=Vector3();
				normal_points[j][i%3]=(i>=3?-1:1);
			}
			//tri 1
			ADD_VTX(0);
			ADD_VTX(1);
			ADD_VTX(2);
			//tri 2
			ADD_VTX(2);
			ADD_VTX(3);
			ADD_VTX(0);

		}


		Array d;
		d.resize(VS::ARRAY_MAX);
		d[VisualServer::ARRAY_NORMAL]= normals ;
		d[VisualServer::ARRAY_VERTEX]= vertices ;

		mesh->add_surface(Mesh::PRIMITIVE_TRIANGLES,d);
		mesh->surface_set_material(ih,SpatialEditorGizmos::singleton->handle_material);


	}
#endif
	ins.mesh=mesh;
	ins.billboard=p_billboard;
	ins.extra_margin=true;
	if (valid) {
		ins.create_instance(spatial_node);
		VS::get_singleton()->instance_set_transform(ins.instance,spatial_node->get_global_transform());
	}
	instances.push_back(ins);
	if (!p_secondary) {
		int chs=handles.size();
		handles.resize(chs+p_handles.size());
		for(int i=0;i<p_handles.size();i++) {
			handles[i+chs]=p_handles[i];
		}
	} else {

		int chs=secondary_handles.size();
		secondary_handles.resize(chs+p_handles.size());
		for(int i=0;i<p_handles.size();i++) {
			secondary_handles[i+chs]=p_handles[i];
		}

	}

}


void SpatialGizmoTool::set_spatial_node(Spatial *p_node){

	spatial_node=p_node;

}

bool SpatialGizmoTool::intersect_frustum(const Camera *p_camera,const Vector<Plane> &p_frustum) {

	ERR_FAIL_COND_V(!spatial_node,false);
	ERR_FAIL_COND_V(!valid,false);

	if (collision_segments.size()) {

		const Plane *p=p_frustum.ptr();
		int fc=p_frustum.size();

		int vc=collision_segments.size();
		const Vector3* vptr=collision_segments.ptr();
		Transform t = spatial_node->get_global_transform();

		for(int i=0;i<vc/2;i++) {


			Vector3 a=t.xform(vptr[i*2+0]);
			Vector3 b=t.xform(vptr[i*2+1]);

			bool any_out=false;
			for(int j=0;j<fc;j++) {

				if (p[j].distance_to(a) > 0 && p[j].distance_to(b) >0) {

					any_out=true;
					break;
				}
			}

			if (!any_out)
				return true;
		}

		return false;
	}

	return false;
}


bool SpatialGizmoTool::intersect_ray(const Camera *p_camera,const Point2& p_point,  Vector3& r_pos, Vector3& r_normal,int *r_gizmo_handle,bool p_sec_first) {

	ERR_FAIL_COND_V(!spatial_node,false);
	ERR_FAIL_COND_V(!valid,false);

	if (r_gizmo_handle) {

		Transform t = spatial_node->get_global_transform();
		t.orthonormalize();
		if (billboard_handle) {
			t.set_look_at(t.origin,t.origin+p_camera->get_transform().basis.get_axis(2),p_camera->get_transform().basis.get_axis(1));
		}
		Transform ti=t.affine_inverse();

		Vector3 ray_from=ti.xform(p_camera->project_ray_origin(p_point));
		Vector3 ray_dir=t.basis.xform_inv(p_camera->project_ray_normal(p_point)).normalized();
		Vector3 ray_to = ray_from+ray_dir*4096;

		float min_d=1e20;
		int idx=-1;

		for(int i=0;i<secondary_handles.size();i++) {
#if 1


			Vector3 hpos = t.xform(secondary_handles[i]);
			Vector2 p = p_camera->unproject_position(hpos);
			if (p.distance_to(p_point)<SpatialEditorGizmos::singleton->handle_t->get_width()*0.6) {


				real_t dp = p_camera->get_transform().origin.distance_to(hpos);
				if (dp<min_d) {

					r_pos=t.xform(hpos);
					r_normal=p_camera->get_transform().basis.get_axis(2);
					min_d=dp;
					idx=i+handles.size();

				}

			}

#else
			AABB aabb;
			aabb.pos=Vector3(-1,-1,-1)*HANDLE_HALF_SIZE;
			aabb.size=aabb.pos*-2;
			aabb.pos+=secondary_handles[i];


			Vector3 rpos,rnorm;

			if (aabb.intersects_segment(ray_from,ray_to,&rpos,&rnorm)) {

				real_t dp = ray_dir.dot(rpos);
				if (dp<min_d) {

					r_pos=t.xform(rpos);
					r_normal=ti.basis.xform_inv(rnorm).normalized();
					min_d=dp;
					idx=i+handles.size();

				}
			}
#endif
		}

		if (p_sec_first && idx!=-1) {

			*r_gizmo_handle=idx;
			return true;
		}

		min_d=1e20;

		for(int i=0;i<handles.size();i++) {

#if 1


			Vector3 hpos = t.xform(handles[i]);
			Vector2 p = p_camera->unproject_position(hpos);
			if (p.distance_to(p_point)<SpatialEditorGizmos::singleton->handle_t->get_width()*0.6) {


				real_t dp = p_camera->get_transform().origin.distance_to(hpos);
				if (dp<min_d) {

					r_pos=t.xform(hpos);
					r_normal=p_camera->get_transform().basis.get_axis(2);
					min_d=dp;
					idx=i;

				}

			}

#else

			AABB aabb;
			aabb.pos=Vector3(-1,-1,-1)*HANDLE_HALF_SIZE;
			aabb.size=aabb.pos*-2;
			aabb.pos+=handles[i];


			Vector3 rpos,rnorm;

			if (aabb.intersects_segment(ray_from,ray_to,&rpos,&rnorm)) {

				real_t dp = ray_dir.dot(rpos);
				if (dp<min_d) {

					r_pos=t.xform(rpos);
					r_normal=ti.basis.xform_inv(rnorm).normalized();
					min_d=dp;
					idx=i;

				}
			}
#endif
		}

		if (idx>=0) {
			*r_gizmo_handle=idx;
			return true;
		}


	}

	if (collision_segments.size()) {

		Plane camp(p_camera->get_transform().origin,(-p_camera->get_transform().basis.get_axis(2)).normalized());

		int vc=collision_segments.size();
		const Vector3* vptr=collision_segments.ptr();
		Transform t = spatial_node->get_global_transform();

		Vector3 cp;
		float cpd=1e20;

		for(int i=0;i<vc/2;i++) {


			Vector3 a=t.xform(vptr[i*2+0]);
			Vector3 b=t.xform(vptr[i*2+1]);
			Vector2 s[2];
			s[0] = p_camera->unproject_position(a);
			s[1] = p_camera->unproject_position(b);


			Vector2 p = Geometry::get_closest_point_to_segment_2d(p_point,s);

			float pd = p.distance_to(p_point);

			if (pd<cpd) {


				float d = s[0].distance_to(s[1]);
				Vector3 tcp;
				if (d>0) {

					float d2=s[0].distance_to(p)/d;
					tcp = a+(b-a)*d2;

				} else {
					tcp=a;

				}

				if (camp.distance_to(tcp)<p_camera->get_znear())
					continue;
				cp=tcp;
				cpd=pd;
			}
		}

		if (cpd<5) {

			r_pos=cp;
			r_normal=-p_camera->project_ray_normal(p_point);
			return true;
		}

		return false;
	}


	if (collision_mesh.is_valid()) {
		Transform gt = spatial_node->get_global_transform();
		Transform ai=gt.affine_inverse();
		Vector3 ray_from = ai.xform(p_camera->project_ray_origin(p_point));
		Vector3 ray_dir=ai.basis.xform(p_camera->project_ray_normal(p_point)).normalized();
		Vector3 rpos,rnorm;

#if 1



		if (collision_mesh->intersect_ray(ray_from,ray_dir,rpos,rnorm)) {

			r_pos=gt.xform(rpos);
			r_normal=gt.basis.xform(rnorm).normalized();
			return true;
		}
#else

		if (collision_mesh->intersect_segment(ray_from,ray_from+ray_dir*4906.0,rpos,rnorm)) {

			r_pos=gt.xform(rpos);
			r_normal=gt.basis.xform(rnorm).normalized();
			return true;
		}

#endif
	}

	return false;

}



void SpatialGizmoTool::create() {

	ERR_FAIL_COND(!spatial_node);
	ERR_FAIL_COND(valid);
	valid=true;

	for(int i=0;i<instances.size();i++) {

		instances[i].create_instance(spatial_node);
	}

	transform();

}

void SpatialGizmoTool::transform(){

	ERR_FAIL_COND(!spatial_node);
	ERR_FAIL_COND(!valid);
	for(int i=0;i<instances.size();i++) {
		VS::get_singleton()->instance_set_transform(instances[i].instance,spatial_node->get_global_transform());
	}

}


void SpatialGizmoTool::free(){

	ERR_FAIL_COND(!spatial_node);
	ERR_FAIL_COND(!valid);

	for(int i=0;i<instances.size();i++) {

		if (instances[i].instance.is_valid())
			VS::get_singleton()->free(instances[i].instance);
		instances[i].instance=RID();
	}

	valid=false;


}



SpatialGizmoTool::SpatialGizmoTool() {
	valid=false;
	billboard_handle=false;

}

SpatialGizmoTool::~SpatialGizmoTool(){

	clear();
}

Vector3 SpatialGizmoTool::get_handle_pos(int p_idx) const {

	ERR_FAIL_INDEX_V(p_idx,handles.size(),Vector3());

	return handles[p_idx];

}

//// light gizmo


String LightSpatialGizmo::get_handle_name(int p_idx) const {

	if (p_idx==0)
		return "Radius";
	else
		return "Aperture";
}


Variant LightSpatialGizmo::get_handle_value(int p_idx) const{

	if (p_idx==0)
		return light->get_parameter(Light::PARAM_RADIUS);
	if (p_idx==1)
		return light->get_parameter(Light::PARAM_SPOT_ANGLE);

	return Variant();
}


static float _find_closest_angle_to_half_pi_arc(const Vector3& p_from, const Vector3& p_to, float p_arc_radius,const Transform& p_arc_xform) {

	//bleh, discrete is simpler
	static const int arc_test_points=64;
	float min_d = 1e20;
	Vector3 min_p;


	for(int i=0;i<arc_test_points;i++) {

		float a = i*Math_PI*0.5/arc_test_points;
		float an = (i+1)*Math_PI*0.5/arc_test_points;
		Vector3 p=Vector3( Math::cos(a), 0, -Math::sin(a) )*p_arc_radius;
		Vector3 n=Vector3( Math::cos(an), 0,- Math::sin(an) )*p_arc_radius;

		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(p,n,p_from,p_to,ra,rb);

		float d = ra.distance_to(rb);
		if (d<min_d) {
			min_d=d;
			min_p=ra;
		}

	}

	//min_p = p_arc_xform.affine_inverse().xform(min_p);
	float a = Vector2(min_p.x,-min_p.z).atan2();
	return a*180.0/Math_PI;
}


void LightSpatialGizmo::set_handle(int p_idx,Camera *p_camera, const Point2& p_point) {

	Transform gt = light->get_global_transform();
	gt.orthonormalize();
	Transform gi = gt.affine_inverse();

	Vector3 ray_from = p_camera->project_ray_origin(p_point);
	Vector3 ray_dir = p_camera->project_ray_normal(p_point);

	Vector3 s[2]={gi.xform(ray_from),gi.xform(ray_from+ray_dir*4096)};
	if (p_idx==0) {

		if (light->cast_to<SpotLight>()) {
			Vector3 ra,rb;
			Geometry::get_closest_points_between_segments(Vector3(),Vector3(0,0,-4096),s[0],s[1],ra,rb);

			float d = -ra.z;
			if (d<0)
				d=0;

			light->set_parameter(Light::PARAM_RADIUS,d);
		} else if (light->cast_to<OmniLight>()) {

			Plane cp=Plane( gt.origin, p_camera->get_transform().basis.get_axis(2));

			Vector3 inters;
			if (cp.intersects_ray(ray_from,ray_dir,&inters)) {

				float r = inters.distance_to(gt.origin);
				light->set_parameter(Light::PARAM_RADIUS,r);
			}

		}

	} else if (p_idx==1) {

		float a = _find_closest_angle_to_half_pi_arc(s[0],s[1],light->get_parameter(Light::PARAM_RADIUS),gt);
		light->set_parameter(Light::PARAM_SPOT_ANGLE,CLAMP(a,0.01,89.99));
	}
}

void LightSpatialGizmo::commit_handle(int p_idx,const Variant& p_restore,bool p_cancel){

	if (p_cancel) {

		light->set_parameter(p_idx==0?Light::PARAM_RADIUS:Light::PARAM_SPOT_ANGLE,p_restore);

	} else if (p_idx==0) {

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		ur->create_action("Change Light Radius");
		ur->add_do_method(light,"set_parameter",Light::PARAM_RADIUS,light->get_parameter(Light::PARAM_RADIUS));
		ur->add_undo_method(light,"set_parameter",Light::PARAM_RADIUS,p_restore);
		ur->commit_action();
	} else if (p_idx==1) {

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		ur->create_action("Change Light Radius");
		ur->add_do_method(light,"set_parameter",Light::PARAM_SPOT_ANGLE,light->get_parameter(Light::PARAM_SPOT_ANGLE));
		ur->add_undo_method(light,"set_parameter",Light::PARAM_SPOT_ANGLE,p_restore);
		ur->commit_action();

	}
}



void LightSpatialGizmo::redraw() {


	if (light->cast_to<DirectionalLight>()) {



		const int arrow_points=5;
		Vector3 arrow[arrow_points]={
			Vector3(0,0,2),
			Vector3(1,1,2),
			Vector3(1,1,-1),
			Vector3(2,2,-1),
			Vector3(0,0,-3)
		};

		int arrow_sides=4;

		Vector<Vector3> lines;


		for(int i = 0; i < arrow_sides ; i++) {


			Matrix3 ma(Vector3(0,0,1),Math_PI*2*float(i)/arrow_sides);
			Matrix3 mb(Vector3(0,0,1),Math_PI*2*float(i+1)/arrow_sides);


			for(int j=1;j<arrow_points-1;j++) {

				if (j!=2) {
					lines.push_back(ma.xform(arrow[j]));
					lines.push_back(ma.xform(arrow[j+1]));
				}
				if (j<arrow_points-1) {
					lines.push_back(ma.xform(arrow[j]));
					lines.push_back(mb.xform(arrow[j]));
				}

			}
		}

		add_lines(lines,SpatialEditorGizmos::singleton->light_material);
		add_collision_segments(lines);
		add_unscaled_billboard(SpatialEditorGizmos::singleton->light_material_directional_icon,0.05);

	}

	if (light->cast_to<OmniLight>()) {

		clear();


		OmniLight *on = light->cast_to<OmniLight>();

		float r = on->get_parameter(Light::PARAM_RADIUS);

		Vector<Vector3> points;

		for(int i=0;i<=360;i++) {

			float ra=Math::deg2rad(i);
			float rb=Math::deg2rad(i+1);
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*r;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*r;

			/*points.push_back(Vector3(a.x,0,a.y));
			points.push_back(Vector3(b.x,0,b.y));
			points.push_back(Vector3(0,a.x,a.y));
			points.push_back(Vector3(0,b.x,b.y));*/
			points.push_back(Vector3(a.x,a.y,0));
			points.push_back(Vector3(b.x,b.y,0));

		}

		add_lines(points,SpatialEditorGizmos::singleton->light_material,true);

		add_unscaled_billboard(SpatialEditorGizmos::singleton->light_material_omni_icon,0.05);

		Vector<Vector3> handles;
		handles.push_back(Vector3(r,0,0));
		add_handles(handles,true);


	}


	if (light->cast_to<SpotLight>()) {

		clear();

		Vector<Vector3> points;
		SpotLight *on = light->cast_to<SpotLight>();

		float r = on->get_parameter(Light::PARAM_RADIUS);
		float w = r*Math::sin(Math::deg2rad(on->get_parameter(Light::PARAM_SPOT_ANGLE)));
		float d = r*Math::cos(Math::deg2rad(on->get_parameter(Light::PARAM_SPOT_ANGLE)));



		for(int i=0;i<360;i++) {

			float ra=Math::deg2rad(i);
			float rb=Math::deg2rad(i+1);
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*w;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*w;

			/*points.push_back(Vector3(a.x,0,a.y));
			points.push_back(Vector3(b.x,0,b.y));
			points.push_back(Vector3(0,a.x,a.y));
			points.push_back(Vector3(0,b.x,b.y));*/
			points.push_back(Vector3(a.x,a.y,-d));
			points.push_back(Vector3(b.x,b.y,-d));

			if (i%90==0) {

				points.push_back(Vector3(a.x,a.y,-d));
				points.push_back(Vector3());

			}


		}

		points.push_back(Vector3(0,0,-r));
		points.push_back(Vector3());

		add_lines(points,SpatialEditorGizmos::singleton->light_material);

		Vector<Vector3> handles;
		handles.push_back(Vector3(0,0,-r));

		Vector<Vector3> collision_segments;

		for(int i=0;i<64;i++) {

			float ra=i*Math_PI*2.0/64.0;
			float rb=(i+1)*Math_PI*2.0/64.0;
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*w;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*w;

			collision_segments.push_back(Vector3(a.x,a.y,-d));
			collision_segments.push_back(Vector3(b.x,b.y,-d));

			if (i%16==0) {

				collision_segments.push_back(Vector3(a.x,a.y,-d));
				collision_segments.push_back(Vector3());

			}

			if (i==16) {

				handles.push_back(Vector3(a.x,a.y,-d));
			}

		}

		collision_segments.push_back(Vector3(0,0,-r));
		collision_segments.push_back(Vector3());


		add_handles(handles);
		add_collision_segments(collision_segments);
		add_unscaled_billboard(SpatialEditorGizmos::singleton->light_material_omni_icon,0.05);

	}

}

LightSpatialGizmo::LightSpatialGizmo(Light* p_light){

	light=p_light;
	set_spatial_node(p_light);

}

//////

String CameraSpatialGizmo::get_handle_name(int p_idx) const {

	if (camera->get_projection()==Camera::PROJECTION_PERSPECTIVE) {
		return "FOV";
	} else {
		return "Size";
	}
}
Variant CameraSpatialGizmo::get_handle_value(int p_idx) const{

	if (camera->get_projection()==Camera::PROJECTION_PERSPECTIVE) {
		return camera->get_fov();
	} else {

		return camera->get_size();
	}
}
void CameraSpatialGizmo::set_handle(int p_idx,Camera *p_camera, const Point2& p_point){

	Transform gt = camera->get_global_transform();
	gt.orthonormalize();
	Transform gi = gt.affine_inverse();

	Vector3 ray_from = p_camera->project_ray_origin(p_point);
	Vector3 ray_dir = p_camera->project_ray_normal(p_point);

	Vector3 s[2]={gi.xform(ray_from),gi.xform(ray_from+ray_dir*4096)};

	if (camera->get_projection()==Camera::PROJECTION_PERSPECTIVE) {
		Transform gt=camera->get_global_transform();
		float a = _find_closest_angle_to_half_pi_arc(s[0],s[1],1.0,gt);
		camera->set("fov",a);
	} else {

		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(Vector3(0,0,-1),Vector3(4096,0,-1),s[0],s[1],ra,rb);
		float d = ra.x * 2.0;
		if (d<0)
			d=0;

		camera->set("size",d);
	}

}
void CameraSpatialGizmo::commit_handle(int p_idx,const Variant& p_restore,bool p_cancel){

	if (camera->get_projection()==Camera::PROJECTION_PERSPECTIVE) {

		if (p_cancel) {

			camera->set("fov",p_restore);
		} else {
			UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
			ur->create_action("Change Camera FOV");
			ur->add_do_property(camera,"fov",camera->get_fov());
			ur->add_undo_property(camera,"fov",p_restore);
			ur->commit_action();
		}

	} else {

		if (p_cancel) {

			camera->set("size",p_restore);
		} else {
			UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
			ur->create_action("Change Camera Size");
			ur->add_do_property(camera,"size",camera->get_size());
			ur->add_undo_property(camera,"size",p_restore);
			ur->commit_action();
		}

	}

}

void CameraSpatialGizmo::redraw(){

	clear();

	Vector<Vector3> lines;
	Vector<Vector3> handles;


	switch(camera->get_projection()) {

		case Camera::PROJECTION_PERSPECTIVE: {

			float fov = camera->get_fov();

			Vector3 side=Vector3( Math::sin(Math::deg2rad(fov)), 0, -Math::cos(Math::deg2rad(fov)) );
			Vector3 nside=side;
			nside.x=-nside.x;
			Vector3 up=Vector3(0,side.x,0);


#define ADD_TRIANGLE( m_a, m_b, m_c)\
{\
	lines.push_back(m_a);\
	lines.push_back(m_b);\
	lines.push_back(m_b);\
	lines.push_back(m_c);\
	lines.push_back(m_c);\
	lines.push_back(m_a);\
}

			ADD_TRIANGLE( Vector3(), side+up, side-up );
			ADD_TRIANGLE( Vector3(), nside+up, nside-up );
			ADD_TRIANGLE( Vector3(), side+up, nside+up );
			ADD_TRIANGLE( Vector3(), side-up, nside-up );

			handles.push_back(side);
			side.x*=0.25;
			nside.x*=0.25;
			Vector3 tup( 0, up.y*3/2,side.z);
			ADD_TRIANGLE( tup, side+up, nside+up );

		} break;
		case Camera::PROJECTION_ORTHOGONAL: {

#define ADD_QUAD( m_a, m_b, m_c, m_d)\
{\
	lines.push_back(m_a);\
	lines.push_back(m_b);\
	lines.push_back(m_b);\
	lines.push_back(m_c);\
	lines.push_back(m_c);\
	lines.push_back(m_d);\
	lines.push_back(m_d);\
	lines.push_back(m_a);\
}
			float size = camera->get_size();

			float hsize=size*0.5;
			Vector3 right(hsize,0,0);
			Vector3 up(0,hsize,0);
			Vector3 back(0,0,-1.0);
			Vector3 front(0,0,0);

			ADD_QUAD( -up-right,-up+right,up+right,up-right);
			ADD_QUAD( -up-right+back,-up+right+back,up+right+back,up-right+back);
			ADD_QUAD( up+right,up+right+back,up-right+back,up-right);
			ADD_QUAD( -up+right,-up+right+back,-up-right+back,-up-right);
			handles.push_back(right+back);

			right.x*=0.25;
			Vector3 tup( 0, up.y*3/2,back.z );
			ADD_TRIANGLE( tup, right+up+back, -right+up+back );

		} break;

	}

	add_lines(lines,SpatialEditorGizmos::singleton->camera_material);
	add_collision_segments(lines);
	add_handles(handles);
}


CameraSpatialGizmo::CameraSpatialGizmo(Camera* p_camera){

	camera=p_camera;
	set_spatial_node(camera);
}




//////

void MeshInstanceSpatialGizmo::redraw() {

	Ref<Mesh> m = mesh->get_mesh();
	if (!m.is_valid())
		return; //none

	Ref<TriangleMesh> tm = m->generate_triangle_mesh();
	if (tm.is_valid())
		add_collision_triangles(tm);
}

MeshInstanceSpatialGizmo::MeshInstanceSpatialGizmo(MeshInstance* p_mesh) {

	mesh=p_mesh;
	set_spatial_node(p_mesh);
}

/////


void Position3DSpatialGizmo::redraw() {

	clear();
	add_mesh(SpatialEditorGizmos::singleton->pos3d_mesh);
	Vector<Vector3> cursor_points;
	float cs = 0.25;
	cursor_points.push_back(Vector3(+cs,0,0));
	cursor_points.push_back(Vector3(-cs,0,0));
	cursor_points.push_back(Vector3(0,+cs,0));
	cursor_points.push_back(Vector3(0,-cs,0));
	cursor_points.push_back(Vector3(0,0,+cs));
	cursor_points.push_back(Vector3(0,0,-cs));
	add_collision_segments(cursor_points);

}


Position3DSpatialGizmo::Position3DSpatialGizmo(Position3D* p_p3d) {

	p3d=p_p3d;
	set_spatial_node(p3d);
}


/////

void SkeletonSpatialGizmo::redraw() {

	clear();

	Ref<SurfaceTool> surface_tool( memnew( SurfaceTool ));


	surface_tool->begin(Mesh::PRIMITIVE_LINES);
	surface_tool->set_material(SpatialEditorGizmos::singleton->skeleton_material);
	Vector<Transform> grests;
	grests.resize(skel->get_bone_count());

	Vector<int> bones;
	Vector<float> weights;
	bones.resize(4);
	weights.resize(4);

	for(int i=0;i<4;i++) {
		bones[i]=0;
		weights[i]=0;
	}

	weights[0]=1;



	for (int i=0;i<skel->get_bone_count();i++) {

		int parent = skel->get_bone_parent(i);

		if (parent>=0) {
			grests[i]=grests[parent] * skel->get_bone_rest(i);

			Vector3 v0 = grests[parent].origin;
			Vector3 v1 = grests[i].origin;


			bones[0]=parent;
			surface_tool->add_bones(bones);
			surface_tool->add_weights(weights);
			surface_tool->add_color(Color(0.4,1,0.4,0.4));
			surface_tool->add_vertex(v0);
			bones[0]=i;
			surface_tool->add_bones(bones);
			surface_tool->add_weights(weights);
			surface_tool->add_color(Color(0.4,1,0.4,0.4));
			surface_tool->add_vertex(v1);

		} else {

			grests[i]=skel->get_bone_rest(i);
			bones[0]=i;
		}

		Transform  t = grests[i];
		t.orthonormalize();

		for (int i=0;i<6;i++) {


			Vector3 face_points[4];

			for (int j=0;j<4;j++) {

				float v[3];
				v[0]=1.0;
				v[1]=1-2*((j>>1)&1);
				v[2]=v[1]*(1-2*(j&1));

				for (int k=0;k<3;k++) {

					if (i<3)
						face_points[j][(i+k)%3]=v[k]*(i>=3?-1:1);
					else
						face_points[3-j][(i+k)%3]=v[k]*(i>=3?-1:1);
				}
			}

			for(int j=0;j<4;j++) {
				surface_tool->add_bones(bones);
				surface_tool->add_weights(weights);
				surface_tool->add_color(Color(1.0,0.4,0.4,0.4));
				surface_tool->add_vertex(t.xform(face_points[j]*0.04));
				surface_tool->add_bones(bones);
				surface_tool->add_weights(weights);
				surface_tool->add_color(Color(1.0,0.4,0.4,0.4));
				surface_tool->add_vertex(t.xform(face_points[(j+1)%4]*0.04));
			}

		}
	}

	Ref<Mesh> m = surface_tool->commit();
	add_mesh(m,false,skel->get_skeleton());

}

SkeletonSpatialGizmo::SkeletonSpatialGizmo(Skeleton* p_skel) {

	skel=p_skel;
	set_spatial_node(p_skel);
}

/////


void SpatialPlayerSpatialGizmo::redraw() {

	clear();
	if (splayer->cast_to<SpatialStreamPlayer>()) {

		add_unscaled_billboard(SpatialEditorGizmos::singleton->stream_player_icon,0.05);

	} else if (splayer->cast_to<SpatialSamplePlayer>()) {

		add_unscaled_billboard(SpatialEditorGizmos::singleton->sample_player_icon,0.05);

	}

}

SpatialPlayerSpatialGizmo::SpatialPlayerSpatialGizmo(SpatialPlayer* p_splayer){

	set_spatial_node(p_splayer);
	splayer=p_splayer;
}


/////


void RoomSpatialGizmo::redraw() {

	clear();
	Ref<RoomBounds> roomie = room->get_room();
	if (roomie.is_null())
		return;
	DVector<Face3> faces = roomie->get_geometry_hint();

	Vector<Vector3> lines;
	int fc=faces.size();
	DVector<Face3>::Read r =faces.read();

	Map<_EdgeKey,Vector3> edge_map;

	for(int i=0;i<fc;i++) {

		Vector3 fn = r[i].get_plane().normal;

		for(int j=0;j<3;j++) {

			_EdgeKey ek;
			ek.from=r[i].vertex[j].snapped(CMP_EPSILON);
			ek.to=r[i].vertex[(j+1)%3].snapped(CMP_EPSILON);
			if (ek.from<ek.to)
				SWAP(ek.from,ek.to);

			Map<_EdgeKey,Vector3>::Element *E=edge_map.find(ek);

			if (E) {

				if (E->get().dot(fn) >0.9) {

					E->get()=Vector3();
				}

			} else {

				edge_map[ek]=fn;
			}

		}
	}

	for(Map<_EdgeKey,Vector3>::Element *E=edge_map.front();E;E=E->next()) {

		if (E->get()!=Vector3()) {
			lines.push_back(E->key().from);
			lines.push_back(E->key().to);
		}
	}

	add_lines(lines,SpatialEditorGizmos::singleton->room_material);
	add_collision_segments(lines);

}

RoomSpatialGizmo::RoomSpatialGizmo(Room* p_room){

	set_spatial_node(p_room);
	room=p_room;
}

/////


void PortalSpatialGizmo::redraw() {

	clear();

	Vector<Point2> points = portal->get_shape();
	if (points.size()==0) {
		return;
	}

	Vector<Vector3> lines;

	Vector3 center;
	for(int i=0;i<points.size();i++) {

		Vector3 f;
		f.x=points[i].x;
		f.y=points[i].y;
		Vector3 fn;
		fn.x=points[(i+1)%points.size()].x;
		fn.y=points[(i+1)%points.size()].y;
		center+=f;

		lines.push_back(f);
		lines.push_back(fn);
	}

	center/=points.size();
	lines.push_back(center);
	lines.push_back(center+Vector3(0,0,1));

	add_lines(lines,SpatialEditorGizmos::singleton->portal_material);
	add_collision_segments(lines);

}

PortalSpatialGizmo::PortalSpatialGizmo(Portal* p_portal){

	set_spatial_node(p_portal);
	portal=p_portal;
}

/////


void RayCastSpatialGizmo::redraw() {

	clear();


	Vector<Vector3> lines;

	lines.push_back(Vector3());
	lines.push_back(raycast->get_cast_to());

	add_lines(lines,SpatialEditorGizmos::singleton->raycast_material);
	add_collision_segments(lines);

}

RayCastSpatialGizmo::RayCastSpatialGizmo(RayCast* p_raycast){

	set_spatial_node(p_raycast);
	raycast=p_raycast;
}


/////


void CarWheelSpatialGizmo::redraw() {

	clear();


	Vector<Vector3> points;

	float r = car_wheel->get_radius();
	const int skip=10;
	for(int i=0;i<=360;i+=skip) {

		float ra=Math::deg2rad(i);
		float rb=Math::deg2rad(i+skip);
		Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*r;
		Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*r;

		points.push_back(Vector3(0,a.x,a.y));
		points.push_back(Vector3(0,b.x,b.y));

		const int springsec=4;

		for(int j=0;j<springsec;j++) {
			float t = car_wheel->get_travel()*5;
			points.push_back(Vector3(a.x,i/360.0*t/springsec+j*(t/springsec),a.y)*0.2);
			points.push_back(Vector3(b.x,(i+skip)/360.0*t/springsec+j*(t/springsec),b.y)*0.2);
		}


	}

	//travel
	points.push_back(Vector3(0,0,0));
	points.push_back(Vector3(0,car_wheel->get_travel(),0));

	//axis
	points.push_back(Vector3(r*0.2,car_wheel->get_travel(),0));
	points.push_back(Vector3(-r*0.2,car_wheel->get_travel(),0));
	//axis
	points.push_back(Vector3(r*0.2,0,0));
	points.push_back(Vector3(-r*0.2,0,0));

	//forward line
	points.push_back(Vector3(0,-r,0));
	points.push_back(Vector3(0,-r,r*2));
	points.push_back(Vector3(0,-r,r*2));
	points.push_back(Vector3(r*2*0.2,-r,r*2*0.8));
	points.push_back(Vector3(0,-r,r*2));
	points.push_back(Vector3(-r*2*0.2,-r,r*2*0.8));

	add_lines(points,SpatialEditorGizmos::singleton->car_wheel_material);
	add_collision_segments(points);

}

CarWheelSpatialGizmo::CarWheelSpatialGizmo(CarWheel* p_car_wheel){

	set_spatial_node(p_car_wheel);
	car_wheel=p_car_wheel;
}



///

void TestCubeSpatialGizmo::redraw() {

	clear();
	add_collision_triangles(SpatialEditorGizmos::singleton->test_cube_tm);
}

TestCubeSpatialGizmo::TestCubeSpatialGizmo(TestCube* p_tc) {

	tc=p_tc;
	set_spatial_node(p_tc);
}


///////////






String CollisionShapeSpatialGizmo::get_handle_name(int p_idx) const {

	Ref<Shape> s = cs->get_shape();
	if (s.is_null())
		return "";

	if (s->cast_to<SphereShape>()) {

		return "Radius";
	}

	if (s->cast_to<BoxShape>()) {

		return "Extents";
	}

	if (s->cast_to<CapsuleShape>()) {

		return p_idx==0?"Radius":"Height";
	}

	if (s->cast_to<RayShape>()) {

		return "Length";
	}

	return "";
}
Variant CollisionShapeSpatialGizmo::get_handle_value(int p_idx) const{

	Ref<Shape> s = cs->get_shape();
	if (s.is_null())
		return Variant();

	if (s->cast_to<SphereShape>()) {

		Ref<SphereShape> ss = s;
		return ss->get_radius();
	}

	if (s->cast_to<BoxShape>()) {

		Ref<BoxShape> bs = s;
		return bs->get_extents();
	}

	if (s->cast_to<CapsuleShape>()) {

		Ref<CapsuleShape> cs = s;
		return p_idx==0?cs->get_radius():cs->get_height();
	}

	if (s->cast_to<RayShape>()) {

		Ref<RayShape> cs = s;
		return cs->get_length();
	}

	return Variant();
}
void CollisionShapeSpatialGizmo::set_handle(int p_idx,Camera *p_camera, const Point2& p_point){
	Ref<Shape> s = cs->get_shape();
	if (s.is_null())
		return;

	Transform gt = cs->get_global_transform();
	gt.orthonormalize();
	Transform gi = gt.affine_inverse();

	Vector3 ray_from = p_camera->project_ray_origin(p_point);
	Vector3 ray_dir = p_camera->project_ray_normal(p_point);

	Vector3 sg[2]={gi.xform(ray_from),gi.xform(ray_from+ray_dir*4096)};

	if (s->cast_to<SphereShape>()) {

		Ref<SphereShape> ss = s;
		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(Vector3(),Vector3(4096,0,0),sg[0],sg[1],ra,rb);
		float d = ra.x;
		if (d<0.001)
			d=0.001;

		ss->set_radius(d);
	}

	if (s->cast_to<RayShape>()) {

		Ref<RayShape> rs = s;
		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(Vector3(),Vector3(0,0,4096),sg[0],sg[1],ra,rb);
		float d = ra.z;
		if (d<0.001)
			d=0.001;

		rs->set_length(d);
	}


	if (s->cast_to<BoxShape>()) {

		Vector3 axis;
		axis[p_idx]=1.0;
		Ref<BoxShape> bs = s;
		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(Vector3(),axis*4096,sg[0],sg[1],ra,rb);
		float d = ra[p_idx];
		if (d<0.001)
			d=0.001;

		Vector3 he = bs->get_extents();
		he[p_idx]=d;
		bs->set_extents(he);

	}

	if (s->cast_to<CapsuleShape>()) {

		Vector3 axis;
		axis[p_idx==0?0:2]=1.0;
		Ref<CapsuleShape> cs = s;
		Vector3 ra,rb;
		Geometry::get_closest_points_between_segments(Vector3(),axis*4096,sg[0],sg[1],ra,rb);
		float d = ra[p_idx];
		if (p_idx==1)
			d-=cs->get_radius();
		if (d<0.001)
			d=0.001;

		if (p_idx==0)
			cs->set_radius(d);
		else if (p_idx==1)
			cs->set_height(d*2.0);

	}

}
void CollisionShapeSpatialGizmo::commit_handle(int p_idx,const Variant& p_restore,bool p_cancel){
	Ref<Shape> s = cs->get_shape();
	if (s.is_null())
		return;

	if (s->cast_to<SphereShape>()) {

		Ref<SphereShape> ss=s;
		if (p_cancel) {
			ss->set_radius(p_restore);
			return;
		}

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		ur->create_action("Change Sphere Shape Radius");
		ur->add_do_method(ss.ptr(),"set_radius",ss->get_radius());
		ur->add_undo_method(ss.ptr(),"set_radius",p_restore);
		ur->commit_action();

	}

	if (s->cast_to<BoxShape>()) {

		Ref<BoxShape> ss=s;
		if (p_cancel) {
			ss->set_extents(p_restore);
			return;
		}

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		ur->create_action("Change Box Shape Extents");
		ur->add_do_method(ss.ptr(),"set_extents",ss->get_extents());
		ur->add_undo_method(ss.ptr(),"set_extents",p_restore);
		ur->commit_action();
	}

	if (s->cast_to<CapsuleShape>()) {

		Ref<CapsuleShape> ss=s;
		if (p_cancel) {
			if (p_idx==0)
				ss->set_radius(p_restore);
			else
				ss->set_height(p_restore);
			return;
		}

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		if (p_idx==0) {
			ur->create_action("Change Capsule Shape Radius");
			ur->add_do_method(ss.ptr(),"set_radius",ss->get_radius());
			ur->add_undo_method(ss.ptr(),"set_radius",p_restore);
		} else {
			ur->create_action("Change Capsule Shape Height");
			ur->add_do_method(ss.ptr(),"set_height",ss->get_height());
			ur->add_undo_method(ss.ptr(),"set_height",p_restore);

		}

		ur->commit_action();

	}

	if (s->cast_to<RayShape>()) {

		Ref<RayShape> ss=s;
		if (p_cancel) {
			ss->set_length(p_restore);
			return;
		}

		UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
		ur->create_action("Change Ray Shape Length");
		ur->add_do_method(ss.ptr(),"set_length",ss->get_length());
		ur->add_undo_method(ss.ptr(),"set_length",p_restore);
		ur->commit_action();

	}

}
void CollisionShapeSpatialGizmo::redraw(){

	clear();

	Ref<Shape> s = cs->get_shape();
	if (s.is_null())
		return;

	if (s->cast_to<SphereShape>()) {

		Ref<SphereShape> sp= s;
		float r=sp->get_radius();

		Vector<Vector3> points;

		for(int i=0;i<=360;i++) {

			float ra=Math::deg2rad(i);
			float rb=Math::deg2rad(i+1);
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*r;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*r;

			points.push_back(Vector3(a.x,0,a.y));
			points.push_back(Vector3(b.x,0,b.y));
			points.push_back(Vector3(0,a.x,a.y));
			points.push_back(Vector3(0,b.x,b.y));
			points.push_back(Vector3(a.x,a.y,0));
			points.push_back(Vector3(b.x,b.y,0));

		}

		Vector<Vector3> collision_segments;

		for(int i=0;i<64;i++) {

			float ra=i*Math_PI*2.0/64.0;
			float rb=(i+1)*Math_PI*2.0/64.0;
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*r;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*r;

			collision_segments.push_back(Vector3(a.x,0,a.y));
			collision_segments.push_back(Vector3(b.x,0,b.y));
			collision_segments.push_back(Vector3(0,a.x,a.y));
			collision_segments.push_back(Vector3(0,b.x,b.y));
			collision_segments.push_back(Vector3(a.x,a.y,0));
			collision_segments.push_back(Vector3(b.x,b.y,0));
		}

		add_lines(points,SpatialEditorGizmos::singleton->shape_material);
		add_collision_segments(collision_segments);
		Vector<Vector3> handles;
		handles.push_back(Vector3(r,0,0));
		add_handles(handles);

	}

	if (s->cast_to<BoxShape>()) {

		Ref<BoxShape> bs=s;
		Vector<Vector3> lines;
		AABB aabb;
		aabb.pos=-bs->get_extents();
		aabb.size=aabb.pos*-2;

		for(int i=0;i<12;i++) {
			Vector3 a,b;
			aabb.get_edge(i,a,b);
			lines.push_back(a);
			lines.push_back(b);
		}

		Vector<Vector3> handles;

		for(int i=0;i<3;i++) {

			Vector3 ax;
			ax[i]=bs->get_extents()[i];
			handles.push_back(ax);
		}

		add_lines(lines,SpatialEditorGizmos::singleton->shape_material);
		add_collision_segments(lines);
		add_handles(handles);

	}

	if (s->cast_to<CapsuleShape>()) {

		Ref<CapsuleShape> cs=s;
		float radius = cs->get_radius();
		float height = cs->get_height();


		Vector<Vector3> points;

		Vector3 d(0,0,height*0.5);
		for(int i=0;i<360;i++) {

			float ra=Math::deg2rad(i);
			float rb=Math::deg2rad(i+1);
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*radius;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*radius;

			points.push_back(Vector3(a.x,a.y,0)+d);
			points.push_back(Vector3(b.x,b.y,0)+d);

			points.push_back(Vector3(a.x,a.y,0)-d);
			points.push_back(Vector3(b.x,b.y,0)-d);

			if (i%90==0) {

				points.push_back(Vector3(a.x,a.y,0)+d);
				points.push_back(Vector3(a.x,a.y,0)-d);
			}

			Vector3 dud = i<180?d:-d;

			points.push_back(Vector3(0,a.y,a.x)+dud);
			points.push_back(Vector3(0,b.y,b.x)+dud);
			points.push_back(Vector3(a.y,0,a.x)+dud);
			points.push_back(Vector3(b.y,0,b.x)+dud);

		}

		add_lines(points,SpatialEditorGizmos::singleton->shape_material);

		Vector<Vector3> collision_segments;

		for(int i=0;i<64;i++) {

			float ra=i*Math_PI*2.0/64.0;
			float rb=(i+1)*Math_PI*2.0/64.0;
			Point2 a = Vector2(Math::sin(ra),Math::cos(ra))*radius;
			Point2 b = Vector2(Math::sin(rb),Math::cos(rb))*radius;

			collision_segments.push_back(Vector3(a.x,a.y,0)+d);
			collision_segments.push_back(Vector3(b.x,b.y,0)+d);

			collision_segments.push_back(Vector3(a.x,a.y,0)-d);
			collision_segments.push_back(Vector3(b.x,b.y,0)-d);

			if (i%16==0) {

				collision_segments.push_back(Vector3(a.x,a.y,0)+d);
				collision_segments.push_back(Vector3(a.x,a.y,0)-d);
			}

			Vector3 dud = i<32?d:-d;

			collision_segments.push_back(Vector3(0,a.y,a.x)+dud);
			collision_segments.push_back(Vector3(0,b.y,b.x)+dud);
			collision_segments.push_back(Vector3(a.y,0,a.x)+dud);
			collision_segments.push_back(Vector3(b.y,0,b.x)+dud);

		}

		add_collision_segments(collision_segments);

		Vector<Vector3> handles;
		handles.push_back(Vector3(cs->get_radius(),0,0));
		handles.push_back(Vector3(0,0,cs->get_height()*0.5+cs->get_radius()));
		add_handles(handles);


	}

	if (s->cast_to<PlaneShape>()) {

		Ref<PlaneShape> ps=s;
		Plane p = ps->get_plane();
		Vector<Vector3> points;

		Vector3 n1 = p.get_any_perpendicular_normal();
		Vector3 n2 = p.normal.cross(n1).normalized();

		Vector3 pface[4]={
			p.normal*p.d+n1*10.0+n2*10.0,
			p.normal*p.d+n1*10.0+n2*-10.0,
			p.normal*p.d+n1*-10.0+n2*-10.0,
			p.normal*p.d+n1*-10.0+n2*10.0,
		};

		points.push_back(pface[0]);
		points.push_back(pface[1]);
		points.push_back(pface[1]);
		points.push_back(pface[2]);
		points.push_back(pface[2]);
		points.push_back(pface[3]);
		points.push_back(pface[3]);
		points.push_back(pface[0]);
		points.push_back(p.normal*p.d);
		points.push_back(p.normal*p.d+p.normal*3);

		add_lines(points,SpatialEditorGizmos::singleton->shape_material);
		add_collision_segments(points);

	}


	if (s->cast_to<RayShape>()) {

		Ref<RayShape> rs=s;

		Vector<Vector3> points;
		points.push_back(Vector3());
		points.push_back(Vector3(0,0,rs->get_length()));
		add_lines(points,SpatialEditorGizmos::singleton->shape_material);
		add_collision_segments(points);
		Vector<Vector3> handles;
		handles.push_back(Vector3(0,0,rs->get_length()));
		add_handles(handles);


	}

}
CollisionShapeSpatialGizmo::CollisionShapeSpatialGizmo(CollisionShape* p_cs) {

	cs=p_cs;
	set_spatial_node(p_cs);
}






String VisibilityNotifierGizmo::get_handle_name(int p_idx) const {

	switch(p_idx) {
		case 0: return "X";
		case 1: return "Y";
		case 2: return "Z";
	}

	return "";
}
Variant VisibilityNotifierGizmo::get_handle_value(int p_idx) const{

	return notifier->get_aabb();
}
void VisibilityNotifierGizmo::set_handle(int p_idx,Camera *p_camera, const Point2& p_point){


	Transform gt = notifier->get_global_transform();
	//gt.orthonormalize();
	Transform gi = gt.affine_inverse();

	AABB aabb = notifier->get_aabb();
	Vector3 ray_from = p_camera->project_ray_origin(p_point);
	Vector3 ray_dir = p_camera->project_ray_normal(p_point);

	Vector3 sg[2]={gi.xform(ray_from),gi.xform(ray_from+ray_dir*4096)};
	Vector3 ofs = aabb.pos+aabb.size*0.5;;

	Vector3 axis;
	axis[p_idx]=1.0;

	Vector3 ra,rb;
	Geometry::get_closest_points_between_segments(ofs,ofs+axis*4096,sg[0],sg[1],ra,rb);
	float d = ra[p_idx];
	if (d<0.001)
		d=0.001;

	Vector3 he = aabb.size;
	aabb.pos[p_idx]=(aabb.pos[p_idx]+aabb.size[p_idx]*0.5)-d;
	aabb.size[p_idx]=d*2;
	notifier->set_aabb(aabb);
}

void VisibilityNotifierGizmo::commit_handle(int p_idx,const Variant& p_restore,bool p_cancel){


	if (p_cancel) {
		notifier->set_aabb(p_restore);
		return;
	}

	UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
	ur->create_action("Change Notifier Extents");
	ur->add_do_method(notifier,"set_aabb",notifier->get_aabb());
	ur->add_undo_method(notifier,"set_aabb",p_restore);
	ur->commit_action();

}

void VisibilityNotifierGizmo::redraw(){

	clear();

	Vector<Vector3> lines;
	AABB aabb = notifier->get_aabb();

	for(int i=0;i<12;i++) {
		Vector3 a,b;
		aabb.get_edge(i,a,b);
		lines.push_back(a);
		lines.push_back(b);
	}

	Vector<Vector3> handles;


	for(int i=0;i<3;i++) {

		Vector3 ax;
		ax[i]=aabb.pos[i]+aabb.size[i];
		handles.push_back(ax);
	}

	add_lines(lines,SpatialEditorGizmos::singleton->visibility_notifier_material);
	//add_unscaled_billboard(SpatialEditorGizmos::singleton->visi,0.05);
	add_collision_segments(lines);
	add_handles(handles);

}
VisibilityNotifierGizmo::VisibilityNotifierGizmo(VisibilityNotifier* p_notifier){

	notifier=p_notifier;
	set_spatial_node(p_notifier);
}



////////
SpatialEditorGizmos *SpatialEditorGizmos::singleton=NULL;

Ref<SpatialEditorGizmo> SpatialEditorGizmos::get_gizmo(Spatial *p_spatial) {

	if (p_spatial->cast_to<Light>()) {

		Ref<LightSpatialGizmo> lsg = memnew( LightSpatialGizmo(p_spatial->cast_to<Light>()) );
		return lsg;
	}

	if (p_spatial->cast_to<Camera>()) {

		Ref<CameraSpatialGizmo> lsg = memnew( CameraSpatialGizmo(p_spatial->cast_to<Camera>()) );
		return lsg;
	}

	if (p_spatial->cast_to<Skeleton>()) {

		Ref<SkeletonSpatialGizmo> lsg = memnew( SkeletonSpatialGizmo(p_spatial->cast_to<Skeleton>()) );
		return lsg;
	}


	if (p_spatial->cast_to<Position3D>()) {

		Ref<Position3DSpatialGizmo> lsg = memnew( Position3DSpatialGizmo(p_spatial->cast_to<Position3D>()) );
		return lsg;
	}

	if (p_spatial->cast_to<MeshInstance>()) {

		Ref<MeshInstanceSpatialGizmo> misg = memnew( MeshInstanceSpatialGizmo(p_spatial->cast_to<MeshInstance>()) );
		return misg;
	}

	if (p_spatial->cast_to<Room>()) {

		Ref<RoomSpatialGizmo> misg = memnew( RoomSpatialGizmo(p_spatial->cast_to<Room>()) );
		return misg;
	}

	if (p_spatial->cast_to<RayCast>()) {

		Ref<RayCastSpatialGizmo> misg = memnew( RayCastSpatialGizmo(p_spatial->cast_to<RayCast>()) );
		return misg;
	}

	if (p_spatial->cast_to<Portal>()) {

		Ref<PortalSpatialGizmo> misg = memnew( PortalSpatialGizmo(p_spatial->cast_to<Portal>()) );
		return misg;
	}


	if (p_spatial->cast_to<TestCube>()) {

		Ref<TestCubeSpatialGizmo> misg = memnew( TestCubeSpatialGizmo(p_spatial->cast_to<TestCube>()) );
		return misg;
	}

	if (p_spatial->cast_to<SpatialPlayer>()) {

		Ref<SpatialPlayerSpatialGizmo> misg = memnew( SpatialPlayerSpatialGizmo(p_spatial->cast_to<SpatialPlayer>()) );
		return misg;
	}

	if (p_spatial->cast_to<CollisionShape>()) {

		Ref<CollisionShapeSpatialGizmo> misg = memnew( CollisionShapeSpatialGizmo(p_spatial->cast_to<CollisionShape>()) );
		return misg;
	}

	if (p_spatial->cast_to<VisibilityNotifier>()) {

		Ref<VisibilityNotifierGizmo> misg = memnew( VisibilityNotifierGizmo(p_spatial->cast_to<VisibilityNotifier>()) );
		return misg;
	}

	if (p_spatial->cast_to<EditableShape>()) {

		Ref<EditableShapeSpatialGizmo> misg = memnew( EditableShapeSpatialGizmo(p_spatial->cast_to<EditableShape>()) );
		return misg;
	}
	if (p_spatial->cast_to<CarWheel>()) {

		Ref<CarWheelSpatialGizmo> misg = memnew( CarWheelSpatialGizmo(p_spatial->cast_to<CarWheel>()) );
		return misg;
	}

	return Ref<SpatialEditorGizmo>();
}

SpatialEditorGizmos::SpatialEditorGizmos() {

	singleton=this;

	handle_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	handle_material->set_flag(Material::FLAG_UNSHADED, true);
	handle_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(0.8,0.8,0.8));

	handle2_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	handle2_material->set_flag(Material::FLAG_UNSHADED, true);
	handle2_material->set_fixed_flag(FixedMaterial::FLAG_USE_POINT_SIZE, true);
	handle_t = SpatialEditor::get_singleton()->get_icon("Editor3DHandle","EditorIcons");
	handle2_material->set_point_size(handle_t->get_width());
	handle2_material->set_texture(FixedMaterial::PARAM_DIFFUSE,handle_t);
	handle2_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1));
	handle2_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);

	light_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	light_material->set_flag(Material::FLAG_UNSHADED, true);
	light_material->set_line_width(3.0);
	light_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	light_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,0.2,0.3));

	light_material_omni_icon = Ref<FixedMaterial>( memnew( FixedMaterial ));
	light_material_omni_icon->set_flag(Material::FLAG_UNSHADED, true);
	light_material_omni_icon->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	light_material_omni_icon->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	light_material_omni_icon->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	light_material_omni_icon->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1,0.9));
	light_material_omni_icon->set_texture(FixedMaterial::PARAM_DIFFUSE,SpatialEditor::get_singleton()->get_icon("GizmoLight","EditorIcons"));


	light_material_directional_icon = Ref<FixedMaterial>( memnew( FixedMaterial ));
	light_material_directional_icon->set_flag(Material::FLAG_UNSHADED, true);
	light_material_directional_icon->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	light_material_directional_icon->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	light_material_directional_icon->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	light_material_directional_icon->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1,0.9));
	light_material_directional_icon->set_texture(FixedMaterial::PARAM_DIFFUSE,SpatialEditor::get_singleton()->get_icon("GizmoDirectionalLight","EditorIcons"));

	camera_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	camera_material->set_parameter( FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.5,1.0,0.7) );
	camera_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	camera_material->set_line_width(3);
	camera_material->set_flag(Material::FLAG_DOUBLE_SIDED,true);
	camera_material->set_flag(Material::FLAG_UNSHADED,true);
	camera_material->set_hint(Material::HINT_NO_DEPTH_DRAW,true);



	skeleton_material=Ref<FixedMaterial>( memnew( FixedMaterial ));

	//skeleton_material->set_parameter( FixedMaterial::PARAM_DIFFUSE,Color(0.6,1.0,0.3,0.1) );
	skeleton_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	skeleton_material->set_fixed_flag(FixedMaterial::FLAG_USE_COLOR_ARRAY, true);
	skeleton_material->set_line_width(3);
	skeleton_material->set_flag(Material::FLAG_DOUBLE_SIDED,true);
	skeleton_material->set_flag(Material::FLAG_UNSHADED,true);
	skeleton_material->set_flag(Material::FLAG_ONTOP,true);
	skeleton_material->set_hint(Material::HINT_NO_DEPTH_DRAW,true);

	//position 3D Shared mesh

	pos3d_mesh = Ref<Mesh>( memnew( Mesh ) );
	{

		DVector<Vector3> cursor_points;
		DVector<Color> cursor_colors;
		float cs = 0.25;
		cursor_points.push_back(Vector3(+cs,0,0));
		cursor_points.push_back(Vector3(-cs,0,0));
		cursor_points.push_back(Vector3(0,+cs,0));
		cursor_points.push_back(Vector3(0,-cs,0));
		cursor_points.push_back(Vector3(0,0,+cs));
		cursor_points.push_back(Vector3(0,0,-cs));
		cursor_colors.push_back(Color(1,0.5,0.5,0.7));
		cursor_colors.push_back(Color(1,0.5,0.5,0.7));
		cursor_colors.push_back(Color(0.5,1,0.5,0.7));
		cursor_colors.push_back(Color(0.5,1,0.5,0.7));
		cursor_colors.push_back(Color(0.5,0.5,1,0.7));
		cursor_colors.push_back(Color(0.5,0.5,1,0.7));

		Ref<FixedMaterial> mat = memnew( FixedMaterial );
		mat->set_flag(Material::FLAG_UNSHADED,true);
		mat->set_fixed_flag(FixedMaterial::FLAG_USE_COLOR_ARRAY,true);
		mat->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA,true);
		mat->set_line_width(3);
		Array d;
		d.resize(VS::ARRAY_MAX);
		d[Mesh::ARRAY_VERTEX]=cursor_points;
		d[Mesh::ARRAY_COLOR]=cursor_colors;
		pos3d_mesh->add_surface(Mesh::PRIMITIVE_LINES,d);
		pos3d_mesh->surface_set_material(0,mat);
	}


	sample_player_icon = Ref<FixedMaterial>( memnew( FixedMaterial ));
	sample_player_icon->set_flag(Material::FLAG_UNSHADED, true);
	sample_player_icon->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	sample_player_icon->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	sample_player_icon->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	sample_player_icon->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1,0.9));
	sample_player_icon->set_texture(FixedMaterial::PARAM_DIFFUSE,SpatialEditor::get_singleton()->get_icon("GizmoSpatialSamplePlayer","EditorIcons"));

	room_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	room_material->set_flag(Material::FLAG_UNSHADED, true);
	room_material->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	//room_material->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	room_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	room_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.6,0.9,0.8));
	room_material->set_line_width(3);

	portal_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	portal_material->set_flag(Material::FLAG_UNSHADED, true);
	portal_material->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	//portal_material->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	portal_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	portal_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.8,0.6,0.8));
	portal_material->set_line_width(3);


	raycast_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	raycast_material->set_flag(Material::FLAG_UNSHADED, true);
	raycast_material->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	//raycast_material->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	raycast_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	raycast_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.8,0.6,0.8));
	raycast_material->set_line_width(3);

	car_wheel_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	car_wheel_material->set_flag(Material::FLAG_UNSHADED, true);
	car_wheel_material->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	//car_wheel_material->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	car_wheel_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	car_wheel_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(0.6,0.8,1.0,0.8));
	car_wheel_material->set_line_width(3);



	visibility_notifier_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	visibility_notifier_material->set_flag(Material::FLAG_UNSHADED, true);
	visibility_notifier_material->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	//visibility_notifier_material->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	visibility_notifier_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	visibility_notifier_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.5,1.0,0.8));
	visibility_notifier_material->set_line_width(3);

	stream_player_icon = Ref<FixedMaterial>( memnew( FixedMaterial ));
	stream_player_icon->set_flag(Material::FLAG_UNSHADED, true);
	stream_player_icon->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	stream_player_icon->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	stream_player_icon->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	stream_player_icon->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1,0.9));
	stream_player_icon->set_texture(FixedMaterial::PARAM_DIFFUSE,SpatialEditor::get_singleton()->get_icon("GizmoSpatialStreamPlayer","EditorIcons"));

	visibility_notifier_icon = Ref<FixedMaterial>( memnew( FixedMaterial ));
	visibility_notifier_icon->set_flag(Material::FLAG_UNSHADED, true);
	visibility_notifier_icon->set_flag(Material::FLAG_DOUBLE_SIDED, true);
	visibility_notifier_icon->set_hint(Material::HINT_NO_DEPTH_DRAW, true);
	visibility_notifier_icon->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	visibility_notifier_icon->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1,0.9));
	visibility_notifier_icon->set_texture(FixedMaterial::PARAM_DIFFUSE,SpatialEditor::get_singleton()->get_icon("Visible","EditorIcons"));

	{

		DVector<Vector3> vertices;

#undef ADD_VTX
#define ADD_VTX(m_idx);\
	vertices.push_back( face_points[m_idx] );

		for (int i=0;i<6;i++) {


			Vector3 face_points[4];

			for (int j=0;j<4;j++) {

				float v[3];
				v[0]=1.0;
				v[1]=1-2*((j>>1)&1);
				v[2]=v[1]*(1-2*(j&1));

				for (int k=0;k<3;k++) {

					if (i<3)
						face_points[j][(i+k)%3]=v[k]*(i>=3?-1:1);
					else
						face_points[3-j][(i+k)%3]=v[k]*(i>=3?-1:1);
				}
			}
			//tri 1
			ADD_VTX(0);
			ADD_VTX(1);
			ADD_VTX(2);
			//tri 2
			ADD_VTX(2);
			ADD_VTX(3);
			ADD_VTX(0);

		}

		test_cube_tm = Ref<TriangleMesh>( memnew( TriangleMesh ) );
		test_cube_tm->create(vertices);
	}


	shape_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
	shape_material->set_flag(Material::FLAG_UNSHADED, true);
	shape_material->set_line_width(3.0);
	shape_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
	shape_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(0.2,1,1.0,0.3));

}