[zip loading broke in last update]

What example is not working in this example? When I run it, it loads the folder and finds a file called "è¿a¿½½¿µá.txt" in the RU folder.

[Ultra model file format]

I guess just go without whatever format is in use. The fact that nobody understand or even knows what BC7 is probably means it isn't that important in the grand scheme of things. If someone wants BC7, we can do an auto-converter in the editor from an image file.

It would be better to have something simple and reliable that works now than to have something that produces perfect results but breaks easily.

[Ultra model file format]

Yeah, but if we got a static exporter set up, that would cover 95% of use cases.

[Ultra model file format]

15 hours ago, SpiderPig said:

I dare say it's not hard, its just time consuming.  The main issue I had was finding out the right stuff to access in blender from python, but google was the answer there.  There's also the Leadwerks mdl exporter for blender.  Maybe that could be converted to suit this rather than starting again?

I thought you had a working exporter your wrote yourself?

[Ultra model file format]

I have it working now:

https://github.com/UltraEngine/G3D/blob/main/README.md

[zip loading broke in last update]

6 hours ago, SpiderPig said:

Can this please be looked asap, I can no longer package and update my game. 

Yes

[Ultra model file format]

How hard would it be to export to this format from Blender?

[Ultra model file format]

I am considering implementing our own file format and using a pipeline more like Leadwerks, where glTF and FBX models get automatically converted by the editor. You can still use glTF files for your final game files if you wish, and the converter can be disabled in the program settings if you wish.

The file format is designed to be very simple to read and write, while loading fast enough for game use.

Features:

• LODs
• Skeletal animation
• External material files
• Vertex morphs
• User-defined entity properties
• Embedded collider
• Embedded picking structure

I think it is easiest to understand the file format just by looking at the loading code:

#include "UltraEngine.h"

using namespace UltraEngine;

namespace UltraEngine::Core
{
	String G3DModelLoader::ReadText(shared_ptr<Stream> stream)
	{
		int len = stream->ReadInt();
		auto pos = stream->GetPosition();
		String s;
		if (len)
		{
			s = stream->ReadString(len);
			stream->Seek(pos + len);
		}
		return s;
	}
	
	bool G3DModelLoader::Reload(shared_ptr<Stream> stream, shared_ptr<Object> o, const LoadFlags flags)
	{
		auto modelbase = o->As<ModelBase>();
		if (modelbase == NULL) return false;
		modelbase->model = CreateModel(NULL);
		auto model = modelbase->model->As<Model>();

		if (stream->ReadString(4) != "G3D") return false;
		int version = stream->ReadInt();
		if (version != 100)
		{
			Print("Error: G3D version " + String(version) + " not supported");
			return false;
		}

		return LoadNode(stream, model, flags);
	}

	bool G3DModelLoader::LoadNode(shared_ptr<Stream> stream, shared_ptr<Model> model, const LoadFlags flags)
	{
		Vec3 pos, scale;
		Quat rot;
		String s;
		if (stream->ReadString(4) != "NODE") return false;

		model->name = ReadText(stream);
		model->properties = ParseJson(ReadText(stream));
		ParseJson(ReadText(stream));

		pos.x = stream->ReadFloat();
		pos.y = stream->ReadFloat();
		pos.z = stream->ReadFloat();

		rot.x = stream->ReadFloat();
		rot.y = stream->ReadFloat();
		rot.z = stream->ReadFloat();
		rot.w = stream->ReadFloat();

		scale.x = stream->ReadFloat();
		scale.y = stream->ReadFloat();
		scale.z = stream->ReadFloat();

		model->SetPosition(pos);
		model->SetRotation(rot);
		model->SetScale(scale);

		int countlods = stream->ReadInt();
		for (int level = 0; level < countlods; ++level)
		{
			if (not LoadLod(stream, model, level, flags)) return false;
		}

		int countkids = stream->ReadInt();
		for (int n = 0; n < countkids; ++n)
		{
			auto child = CreateModel(NULL);
			child->SetParent(model);
			if (not LoadNode(stream, child, flags)) return false;
		}

		// Animations
		int animcount = stream->ReadInt();
		for (int n = 0; n < animcount; ++n)
		{
			stream->ReadInt();// length
			stream->ReadFloat();// speed
			auto name = ReadText(stream);
		}

		// Skeleton
		int bones = stream->ReadInt();
		if (bones)
		{
			if (model->GetParent())
			{
				Print("Error: Skeleton can only appear in the model root node");
				return false;
			}
			if (bones != 1)
			{
				Print("Error: Skeleton root must have one bone");
				return false;
			}
			auto skeleton = CreateSkeleton(nullptr);
			model->SetSkeleton(skeleton);
			for (int n = 0; n < bones; ++n)
			{
				auto bone = std::make_shared<Bone>(nullptr, skeleton);
				LoadBone(stream, skeleton, bone, animcount, flags);
			}
			skeleton->UpdateSkinning();
			model->SetSkeleton(skeleton);
		}

		// Collider
		int partscount = stream->ReadInt();

		model->UpdateBounds();
		return true;
	}

	bool G3DModelLoader::LoadLod(shared_ptr<Stream> stream, shared_ptr<Model> model, const int level, const LoadFlags flags)
	{
		if (stream->ReadString(4) != "LOD ") return false;
		if (level >= model->lods.size()) model->AddLod();
		float loddistance = stream->ReadFloat();
		int countmeshes = stream->ReadInt();
		for (int m = 0; m < countmeshes; ++m)
		{
			if (not LoadMesh(stream, model, level, flags)) return false;
		}
		return true;
	}

	bool G3DModelLoader::LoadMesh(shared_ptr<Stream> stream, shared_ptr<Model> model, const int level, const LoadFlags flags)
	{
		if (stream->ReadString(4) != "MESH") return false;
		
		MeshPrimitives type = MeshPrimitives(stream->ReadInt());
		if (type < 1 or type > 4)
		{
			Print("Error: Mesh type must be between one and four");
			return false;
		}

		auto mesh = model->AddMesh(type, level);

		mesh->name = ReadText(stream);

		WString mtlpath = ReadText(stream);
		if (not mtlpath.empty())
		{
			if (mtlpath.Left(2) == "./" and not stream->path.empty())
			{
				mtlpath = ExtractDir(stream->path) + "/" + mtlpath;
			}
			auto mtl = LoadMaterial(mtlpath);
			if (mtl) mesh->SetMaterial(mtl);
		}

		int vertexstride = stream->ReadInt();
		if (vertexstride != 84) return false;
		int vertexcount = stream->ReadInt();

		mesh->m_vertices.resize(vertexcount);
		for (int v = 0; v < vertexcount; ++v)
		{
			mesh->m_vertices[v].position.x = stream->ReadFloat();
			mesh->m_vertices[v].position.y = stream->ReadFloat();
			mesh->m_vertices[v].position.z = stream->ReadFloat();
			mesh->m_vertices[v].normal.x = stream->ReadFloat();
			mesh->m_vertices[v].normal.y = stream->ReadFloat();
			mesh->m_vertices[v].normal.z = stream->ReadFloat();
			mesh->m_vertices[v].texcoords.x = stream->ReadFloat();
			mesh->m_vertices[v].texcoords.y = stream->ReadFloat();
			mesh->m_vertices[v].texcoords.z = stream->ReadFloat();
			mesh->m_vertices[v].texcoords.w = stream->ReadFloat();
			mesh->m_vertices[v].color.r = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].color.g = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].color.b = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].color.a = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].displacement = stream->ReadFloat();
			mesh->m_vertices[v].tangent.x = stream->ReadFloat();
			mesh->m_vertices[v].tangent.y = stream->ReadFloat();
			mesh->m_vertices[v].tangent.z = stream->ReadFloat();
			mesh->m_vertices[v].bitangent.x = stream->ReadFloat();
			mesh->m_vertices[v].bitangent.y = stream->ReadFloat();
			mesh->m_vertices[v].bitangent.z = stream->ReadFloat();
			mesh->m_vertices[v].boneindices[0] = stream->ReadShort();
			mesh->m_vertices[v].boneindices[1] = stream->ReadShort();
			mesh->m_vertices[v].boneindices[2] = stream->ReadShort();
			mesh->m_vertices[v].boneindices[3] = stream->ReadShort();
			mesh->m_vertices[v].boneweights.x = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].boneweights.y = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].boneweights.z = float(stream->ReadByte()) / 255.0f;
			mesh->m_vertices[v].boneweights.w = float(stream->ReadByte()) / 255.0f;
		}

		int indicesize = stream->ReadInt();
		int indicecount = stream->ReadInt();

		uint32_t index;		
		switch (indicesize)
		{
		case 2:
			mesh->m_indices.reserve(indicecount);
			for (int i = 0; i < indicecount; ++i) mesh->AddIndice(stream->ReadShort());
			break;
		case 4:
			mesh->m_indices.resize(indicecount);
			stream->Read(mesh->m_indices.data(), indicecount * sizeof(mesh->indices[0]));
			break;
		default:
			return false;
		}

		// Pick structure cache
		int pickcachesize = stream->ReadInt();
		if (pickcachesize) stream->Seek(stream->GetPosition() + pickcachesize);

		//Vertex morphs
		int morphcount = stream->ReadInt();
		for (int m = 0; m < morphcount; ++m)
		{
			if (stream->ReadString(4) != "MORP") return false;
			if (stream->ReadInt() != 48) return false;

			for (int v = 0; v < vertexcount; ++v)
			{
				// Position
				stream->ReadFloat();
				stream->ReadFloat();
				stream->ReadFloat();

				// Normal
				stream->ReadFloat();
				stream->ReadFloat();
				stream->ReadFloat();

				// Tangent
				stream->ReadFloat();
				stream->ReadFloat();
				stream->ReadFloat();

				// Bitangent
				stream->ReadFloat();
				stream->ReadFloat();
				stream->ReadFloat();
			}
		}

		mesh->UpdateBounds();
		return true;
	}

	bool G3DModelLoader::LoadBone(shared_ptr<Stream> stream, shared_ptr<Skeleton> skeleton, shared_ptr<Bone> bone, const int animcount, const LoadFlags flags)
	{
		bone->name = ReadText(stream);
		bone->position.x = stream->ReadFloat();
		bone->position.y = stream->ReadFloat();
		bone->position.z = stream->ReadFloat();
		bone->quaternion.x = stream->ReadFloat();
		bone->quaternion.y = stream->ReadFloat();
		bone->quaternion.z = stream->ReadFloat();
		bone->quaternion.w = stream->ReadFloat();
		bone->scale = stream->ReadFloat();
		stream->ReadFloat();// scale y
		stream->ReadFloat();// scale z

		int count = stream->ReadInt();
		if (count != animcount)
		{
			Print("Error: Bone animation count must match that of the root node");
			return false;
		}

		for (int anim = 0; anim < count; ++anim)
		{
			if (stream->ReadString(4) != "ANIM") return false;
			int keyflags = stream->ReadInt();
			int keyframes = stream->ReadInt();
			if (keyflags)
			{
				for (int k = 0; k < keyframes; ++k)
				{
					if ((1 & keyflags) != 0)
					{
						stream->ReadFloat();
						stream->ReadFloat();
						stream->ReadFloat();
					}
					if ((2 & keyflags) != 0)
					{
						stream->ReadFloat();
						stream->ReadFloat();
						stream->ReadFloat();
						stream->ReadFloat();
					}
					if ((4 & keyflags) != 0)
					{
						stream->ReadFloat();
						stream->ReadFloat();
						stream->ReadFloat();
					}
				}
			}
		}

		return true;
	}
}

 

[Assimp loading code]

Seems to cause problems of its own. According to this, the Godot developers gave up and implemented their own FBX converter:
https://github.com/assimp/assimp/issues/2498

[Assimp loading code]

This might be the solution, maybe:
https://github.com/assimp/assimp/issues/4035#issuecomment-1497239561

[Assimp loading code]

That is a collada file.

[Multiple instances still running after crash to desktop.]

A bug was fixed that would cause launched processes to hang. This may resolve your issue with the preview tool.

[Release Notes]

0.9.5

• Removed assimp library due to this issue.
• Removed FBX to glTF converter script.
• Removed Collada to glTF converter script.
• Added FBX to MDL converter tool and script.
• Fixed bug that would cause launched processes to hang forever. This could affect both your launched games, converters, and possibly the preview tool.

[Assimp loading code]

Reported here: https://github.com/assimp/assimp/issues/5534

I am not going to continue on this path.

[Assimp loading code]

This is what our FBX converter looks like:

[Assimp loading code]

It looks like there is a very bad problem with bones in assimp. It looks like it quadruples the number of bones in the model.

[zip loading broke in last update]

It is possible that maybe assimp and my libzip are conflicting somehow?

[Release Notes]

0.9.5

• Some bug fixes
• Added experimental support for FBX and X files. Animation is not yet supported.
• You must add this header search path to existing C++ projects in the project settings:
  $(ULTRAENGINE)\Include\Libraries\assimp\include
• You will also see noticeably smoother camera movement, best with release mode and VSync on.

[Scene list is empty]

Okay, this was just because of the change in the scene tree...should be working in next build.

[Enabling SSR disables posteffects and skybox]

Okay, I believe this will be fixed when a new build goes up...

[Enabling SSR disables posteffects and skybox]

I am seeing something weird on my 1080

[POINT]

I correct the function definition:

"Point", sol::overload
(
  [](Entity& e, shared_ptr<Entity> target) { e.Point(target); },
  [](Entity& e, shared_ptr<Entity> target, int a) { e.Point(target, a); },
  [](Entity& e, shared_ptr<Entity> target, int a, float r) { e.Point(target, a, r); },
  [](Entity& e, shared_ptr<Entity> target, int a, float r, float z) { e.Point(target, a, r, z); },
  [](Entity& e, Vec3& target) { e.Point(target); },
  [](Entity& e, Vec3& target, int a) { e.Point(target, a); },
  [](Entity& e, Vec3& target, int a, float r) { e.Point(target, a, r); },
  [](Entity& e, Vec3& target, int a, float r, float z) { e.Point(target, a, r, z); },
  [](Entity& e, float x, float y, float z) { e.Point(x,y,z); },
  [](Entity& e, float x, float y, float z, int a) { e.Point(x, y, z, a); },
  [](Entity& e, float x, float y, float z, int a, float r) { e.Point(x, y, z, a, r); },
  [](Entity& e, float x, float y, float z, int a, float r, float roll) { e.Point(x, y, z, a, r, roll); }
),

 

[POINT]

Test:

local world = CreateWorld()

local box = CreateBox(world)
local box2 = CreateBox(world);

box:SetPosition(2,0,0)
box:Point(box2, 2, 1, 0)

result:

sol: no matching function call takes this number of arguments and the specified types

[Deleting widgets]

I changed the function definition to support NULL for the parent parameter.

[Unique Sound Count]

Yes, please send your project.