mesh preview

tools/editor/plugins/editor_preview_plugins.cpp

@@ -5,6 +5,7 @@
 #include "os/os.h"
 #include "scene/resources/material.h"
 #include "scene/resources/sample.h"
+#include "scene/resources/mesh.h"
 
 bool EditorTexturePreviewPlugin::handles(const String& p_type) const {
 
@@ -662,3 +663,114 @@ EditorSamplePreviewPlugin::EditorSamplePreviewPlugin() {
 }
 
 ///////////////////////////////////////////////////////////////////////////
+
+bool EditorMeshPreviewPlugin::handles(const String& p_type) const {
+
+	return ObjectTypeDB::is_type(p_type,"Mesh"); //any Mesh
+}
+
+Ref<Texture> EditorMeshPreviewPlugin::generate(const RES& p_from) {
+
+	Ref<Mesh> mesh = p_from;
+	ERR_FAIL_COND_V(mesh.is_null(),Ref<Texture>());
+
+	VS::get_singleton()->instance_set_base(mesh_instance,mesh->get_rid());
+
+	AABB aabb= mesh->get_aabb();
+	Vector3 ofs = aabb.pos + aabb.size*0.5;
+	aabb.pos-=ofs;
+	Transform xform;
+	xform.basis=Matrix3().rotated(Vector3(0,1,0),Math_PI*0.125);
+	xform.basis = Matrix3().rotated(Vector3(1,0,0),-Math_PI*0.125)*xform.basis;
+	AABB rot_aabb = xform.xform(aabb);
+	float m = MAX(rot_aabb.size.x,rot_aabb.size.y)*0.5;
+	if (m==0)
+		return Ref<Texture>();
+	m=1.0/m;
+	m*=0.5;
+	//print_line("scale: "+rtos(m));
+	xform.basis.scale(Vector3(m,m,m));
+	xform.origin=-xform.basis.xform(ofs); //-ofs*m;
+	xform.origin.z-=rot_aabb.size.z*2;
+	VS::get_singleton()->instance_set_transform(mesh_instance,xform);
+
+
+
+	VS::get_singleton()->viewport_queue_screen_capture(viewport);
+	VS::get_singleton()->viewport_set_render_target_update_mode(viewport,VS::RENDER_TARGET_UPDATE_ONCE); //once used for capture
+//	print_line("queue capture!");
+	Image img;
+
+	int timeout=1000;
+	while(timeout) {
+		//print_line("try capture?");
+		OS::get_singleton()->delay_usec(10);
+		img = VS::get_singleton()->viewport_get_screen_capture(viewport);
+		if (!img.empty())
+			break;
+		timeout--;
+	}
+
+	//print_line("captured!");
+	VS::get_singleton()->instance_set_base(mesh_instance,RID());
+
+	int thumbnail_size = EditorSettings::get_singleton()->get("file_dialog/thumbnail_size");
+	img.resize(thumbnail_size,thumbnail_size);
+
+	Ref<ImageTexture> ptex = Ref<ImageTexture>( memnew( ImageTexture ));
+	ptex->create_from_image(img,0);
+	return ptex;
+}
+
+EditorMeshPreviewPlugin::EditorMeshPreviewPlugin() {
+
+	scenario = VS::get_singleton()->scenario_create();
+	viewport = VS::get_singleton()->viewport_create();
+	VS::get_singleton()->viewport_set_as_render_target(viewport,true);
+	VS::get_singleton()->viewport_set_render_target_update_mode(viewport,VS::RENDER_TARGET_UPDATE_DISABLED);
+	VS::get_singleton()->viewport_set_scenario(viewport,scenario);
+	VS::ViewportRect vr;
+	vr.x=0;
+	vr.y=0;
+	vr.width=128;
+	vr.height=128;
+	VS::get_singleton()->viewport_set_rect(viewport,vr);
+
+	camera = VS::get_singleton()->camera_create();
+	VS::get_singleton()->viewport_attach_camera(viewport,camera);
+	VS::get_singleton()->camera_set_transform(camera,Transform(Matrix3(),Vector3(0,0,3)));
+//	VS::get_singleton()->camera_set_perspective(camera,45,0.1,10);
+	VS::get_singleton()->camera_set_orthogonal(camera,1.0,0.01,1000.0);
+
+	light = VS::get_singleton()->light_create(VS::LIGHT_DIRECTIONAL);
+	light_instance = VS::get_singleton()->instance_create2(light,scenario);
+	VS::get_singleton()->instance_set_transform(light_instance,Transform().looking_at(Vector3(-1,-1,-1),Vector3(0,1,0)));
+
+	light2 = VS::get_singleton()->light_create(VS::LIGHT_DIRECTIONAL);
+	VS::get_singleton()->light_set_color(light2,VS::LIGHT_COLOR_DIFFUSE,Color(0.7,0.7,0.7));
+	VS::get_singleton()->light_set_color(light2,VS::LIGHT_COLOR_SPECULAR,Color(0.0,0.0,0.0));
+	light_instance2 = VS::get_singleton()->instance_create2(light2,scenario);
+
+	VS::get_singleton()->instance_set_transform(light_instance2,Transform().looking_at(Vector3(0,1,0),Vector3(0,0,1)));
+
+//	sphere = VS::get_singleton()->mesh_create();
+	mesh_instance = VS::get_singleton()->instance_create();
+	VS::get_singleton()->instance_set_scenario(mesh_instance,scenario);
+
+
+
+}
+
+EditorMeshPreviewPlugin::~EditorMeshPreviewPlugin() {
+
+	//VS::get_singleton()->free(sphere);
+	VS::get_singleton()->free(mesh_instance);
+	VS::get_singleton()->free(viewport);
+	VS::get_singleton()->free(light);
+	VS::get_singleton()->free(light_instance);
+	VS::get_singleton()->free(light2);
+	VS::get_singleton()->free(light_instance2);
+	VS::get_singleton()->free(camera);
+	VS::get_singleton()->free(scenario);
+
+}