├── LICENSE ├── README.md ├── build_md2_importer.py ├── imgs ├── flag_animation_frames.png ├── loading_options.png ├── non_pcx_model.png ├── run_script.png ├── texture_paint.png └── uv_layout.png ├── md2_importer ├── __init__.py └── blender_load_md2.py ├── tests ├── data │ ├── bigleaf2.md2 │ ├── car.jpg │ ├── car.md2 │ └── leaf02.jpg ├── test_md2_noerror.py └── test_prepare_skin_paths.py └── util ├── MD2.py ├── __init__.py └── prepare_skin_paths.py /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Quake 2 MD2 import add-on for Blender 3.x 2 | This add-on allows importing .md2 model files. This hasn't been 3 | natively supported by [Blender](https://www.blender.org/) for 4 | a decade now. 5 | 6 | Please note that this add-on is still incomplete. **Bug reports and feature 7 | requests are welcome!** 8 | 9 | Developed and tested with Blender 3.6.5 and Python 3.10.13. 10 | Older versions might still (partially) work. 11 | 12 | ## What can this importer (!) do so far? 13 | 14 | - load an MD2 object to Blender 15 | - attach a UV map linked in the .md2 file or a custom one 16 | - Blender native formats (not verified except .jpg): 17 | - custom format: .pcx 18 | - load and run keyframe animations 19 | 20 | ### Blender native image formats in Blender 3.6.5 / Python 3.10.13: 21 | ```python3 22 | >>> bpy.path.extensions_image 23 | frozenset({'.tx', '.png', '.cin', '.tiff', '.bmp', '.rgb', '.tga', '.sgi', '.jpeg', '.dpx', '.psd', '.jp2', '.j2c', '.hdr', '.webp', '.rgba', '.exr', '.pdd', '.jpg', '.psb', '.dds', '.tif'}) 24 | ``` 25 | ## What is missing? 26 | 27 | - aligning the animation keyframes to the fps used for the different animations 28 | 29 | ## [Releases](https://github.com/lennart-g/blender-md2-importer/releases) 30 | 31 | ## Installation 32 | Install the provided .zip via the Edit > Preferences > Add-ons menu. 33 | 34 | ### Optional: PCX skin files 35 | When loading a .pcx file, a message referring to this README is shown. 36 | 37 | 1. [install Pillow (used for loading .pcx files)](https://blender.stackexchange.com/a/122337). 38 | Replace `pip install scipy` with `pip install pillow`. 39 | On old Blender / Python versions, an upgrade of pip might be necessary. 40 | 2. Check the plugin activation checkbox again. 41 | 42 | ## Development 43 | Follow [these instructions](https://github.com/lennart-g/bsp_hacking/blob/master/docs/blender_importer.md) 44 | with adjustments for this repository. 45 | 46 | ## How to use 47 | 48 | The script can be accessed via File > Import: 49 | 50 | ![Run importer](imgs/run_script.png) 51 | 52 | Checking "Load custom skin" allows loading a UV map different 53 | from the one specified in the .md2 file. By entering a 54 | "displayed name" the object and mesh name in the outliner 55 | is specified. 56 | 57 | ![Loading options](imgs/loading_options.png) 58 | 59 | Model keyframes are loaded with 9 empty frames in between 60 | and displayed in the dope sheet. 61 | 62 | ![animation frames](imgs/flag_animation_frames.png) 63 | 64 | In the UV editor you can see both the UV map and 65 | the UV layout. 66 | 67 | ![UV Layout](imgs/uv_layout.png) 68 | 69 | Using texture paint mode, this allows easily editing 70 | and adding new UV maps. The current importer does not 71 | support exporting a modified UV layout though. 72 | 73 | ![UV editing](imgs/texture_paint.png) 74 | -------------------------------------------------------------------------------- /build_md2_importer.py: -------------------------------------------------------------------------------- 1 | import os.path 2 | import shutil 3 | 4 | # files to include in the output zip file 5 | files = [ 6 | "util/MD2.py", 7 | "md2_importer/__init__.py", 8 | "md2_importer/blender_load_md2.py", 9 | "util/prepare_skin_paths.py" 10 | ] 11 | 12 | # intermediary location for the directory to be zipped 13 | dest = "build/io_import_md2" 14 | 15 | if os.path.exists("build") and os.path.isdir("build"): 16 | shutil.rmtree("build") 17 | os.makedirs(dest) 18 | 19 | for file in files: 20 | shutil.copyfile(file, os.path.join(dest, os.path.basename(file))) 21 | 22 | # create zip file 23 | shutil.make_archive("blender-md2-importer", 'zip', "build") 24 | -------------------------------------------------------------------------------- /imgs/flag_animation_frames.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/flag_animation_frames.png -------------------------------------------------------------------------------- /imgs/loading_options.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/loading_options.png -------------------------------------------------------------------------------- /imgs/non_pcx_model.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/non_pcx_model.png -------------------------------------------------------------------------------- /imgs/run_script.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/run_script.png -------------------------------------------------------------------------------- /imgs/texture_paint.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/texture_paint.png -------------------------------------------------------------------------------- /imgs/uv_layout.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/imgs/uv_layout.png -------------------------------------------------------------------------------- /md2_importer/__init__.py: -------------------------------------------------------------------------------- 1 | bl_info = { 2 | "name": "Experimental MD2 Importer", 3 | "author": "Lennart G", 4 | "location": "File > Import > Quake 2 (.md2)", 5 | "version": (0, 3, 0), 6 | "blender": (2, 80, 0), 7 | "category": "Import-Export" 8 | } 9 | 10 | # To support reload properly, try to access a package var, 11 | # if it's there, reload everything 12 | if "bpy" in locals(): 13 | import imp 14 | try: 15 | imp.reload(MD2) 16 | except NameError: 17 | from util import MD2 18 | imp.reload(MD2) 19 | 20 | try: 21 | imp.reload(prepare_skin_paths) 22 | except NameError: 23 | from util import prepare_skin_paths 24 | imp.reload(prepare_skin_paths) 25 | imp.reload(blender_load_md2) 26 | print("Reloaded multifiles") 27 | else: 28 | from . import blender_load_md2 29 | print("Imported multifiles") 30 | 31 | """ 32 | This part is required for the UI, to make the Addon appear under File > Import once it's 33 | activated and to have additional input fields in the file picking menu 34 | Code is taken from Templates > Python > Operator File Import in Text Editor 35 | The code here calls blender_load_md2 36 | """ 37 | 38 | # ImportHelper is a helper class, defines filename and 39 | # invoke() function which calls the file selector. 40 | import bpy 41 | from bpy_extras.io_utils import ImportHelper 42 | from bpy.props import StringProperty, BoolProperty 43 | from bpy.types import Operator 44 | 45 | 46 | class ImportSomeData(Operator, ImportHelper): 47 | """Loads a Quake 2 MD2 File""" 48 | bl_idname = "import_md2.some_data" # important since its how bpy.ops.import_test.some_data is constructed 49 | bl_label = "Import MD2" 50 | 51 | ## ImportHelper mixin class uses this 52 | # filename_ext = ".md2" 53 | 54 | filter_glob: StringProperty( 55 | default="*.*", # only shows md2 files in opening screen 56 | options={'HIDDEN'}, 57 | maxlen=255, # Max internal buffer length, longer would be clamped. 58 | ) 59 | 60 | # List of operator properties, the attributes will be assigned 61 | # to the class instance from the operator settings before calling. 62 | displayed_name: StringProperty(name="Displayed name", 63 | description="What this model should be named in the outliner\ngood for default file names like tris.md2", 64 | default="", 65 | maxlen=1024) 66 | 67 | use_custom_skin: BoolProperty( 68 | name="Load custom skin: ", 69 | description="To load a skin from a path different to the one stored in the .md2.", 70 | default=False, 71 | ) 72 | custom_skin_path: StringProperty(name="Optional: skin path", 73 | description="If load custom skin checked: path to skin to load.", 74 | default="", 75 | maxlen=1024) 76 | 77 | def execute(self, context): 78 | return blender_load_md2.blender_load_md2(self.filepath, self.displayed_name, self.use_custom_skin, self.custom_skin_path) 79 | 80 | 81 | # Only needed if you want to add into a dynamic menu 82 | def menu_func_import(self, context): 83 | self.layout.operator(ImportSomeData.bl_idname, text="WIP Quake 2 Model Import (.md2)") 84 | 85 | 86 | 87 | # called when addon is activated (adds script to File > Import 88 | def register(): 89 | bpy.utils.register_class(ImportSomeData) 90 | bpy.types.TOPBAR_MT_file_import.append(menu_func_import) 91 | 92 | 93 | # called when addon is deactivated (removed script from menu) 94 | def unregister(): 95 | bpy.utils.unregister_class(ImportSomeData) 96 | bpy.types.TOPBAR_MT_file_import.remove(menu_func_import) 97 | 98 | 99 | if __name__ == "__main__": 100 | register() 101 | -------------------------------------------------------------------------------- /md2_importer/blender_load_md2.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | try: 3 | from . import MD2 4 | except ImportError: 5 | import util.MD2 6 | try: 7 | from .prepare_skin_paths import * #test 8 | except ModuleNotFoundError: 9 | from util.prepare_skin_paths import * 10 | import os # for checking if skin pathes exist 11 | 12 | 13 | # from https://blender.stackexchange.com/a/110112 14 | def ShowMessageBox(message = "", title = "Message Box", icon = 'INFO'): 15 | 16 | def draw(self, context): 17 | self.layout.label(text=message) 18 | 19 | bpy.context.window_manager.popup_menu(draw, title = title, icon = icon) 20 | 21 | 22 | def blender_load_md2(md2_path, displayed_name, use_custom_md2_skin, custom_md2_skin_path): 23 | """ 24 | This function uses the information from a md2 dataclass into a blender object. 25 | This will consist of an animated mesh and its material (which is not much more than the texture. 26 | For better understanding, steps are: 27 | - Create the MD2 object containing all information that's inside the loaded md2 28 | - Get the absolute path of the UV map / skin to load 29 | - Get necessary information about the mesh (vertices, tris, uv coordinates) 30 | - Create the scene structure and create the mesh for the first frame 31 | - Assign UV coordinates to each triangle 32 | - Create shape animation (Add keyframe to each vertex) 33 | - Assign skin to mesh 34 | """ 35 | """ Create MD2 dataclass object """ 36 | print("md2_path, displayed_name, use_custom_md2_skin, custom_md2_skin_path") 37 | print(md2_path, displayed_name, use_custom_md2_skin, custom_md2_skin_path) 38 | print(locals()) 39 | # ImageFile.LOAD_TRUNCATED_IMAGES = True # Necessary for loading jpgs with PIL 40 | 41 | object_path = md2_path # Kept for testing purposes 42 | # A dataclass containing all information stored in a .md2 file 43 | my_object = MD2.load_file(object_path) 44 | 45 | """ Create skin path. By default, the one stored inside of the MD2 is used. Some engines like the Digital Paintball 2 one 46 | check for any image file with that path disregarding the file extension. For a given custom path, it is checked 47 | whether it (apparently) is an absolute or relative (to the MD2) path. 48 | """ 49 | """ get absolute skin path based on input / the one stored inside of the MD2 """ 50 | # check box must be checked (alternatively it could be checked if the input field was empty or not ...) 51 | if use_custom_md2_skin: 52 | # an absolute path is recognized by usage of '/' (obviously not perfect detection of an absolute path) 53 | if os.path.isabs(custom_md2_skin_path): 54 | skin_path = custom_md2_skin_path 55 | else: 56 | # take everything before last '/' of MD2 path, add '/' and path of skin in same directory 57 | # custom_abs_path = "/".join(md2_path.split("/")[:-1]) + "/" + custom_md2_skin_path 58 | custom_abs_path = os.path.join(os.path.split(md2_path)[0], custom_md2_skin_path) 59 | print(custom_abs_path) 60 | skin_path = custom_abs_path 61 | else: 62 | print("stored path:", my_object.skin_names) # unchanged path or pathes stored in the MD2 63 | 64 | skin_path = get_path_from_skin_name(object_path, my_object.skin_names[0]) 65 | 66 | skin_path = get_existing_skin_path(skin_path) 67 | print("used skin path", skin_path) 68 | 69 | """ Loads required information for mesh generation and UV mapping from the .md2 file""" 70 | # Gets name to give to the object and mesh in the outliner 71 | if not displayed_name: 72 | object_name = "/".join(object_path.split("/")[-2:]).split(".")[:-1] 73 | print(object_name) 74 | else: 75 | print(displayed_name) 76 | object_name = [displayed_name] 77 | 78 | # List of vertices [x,y,z] for all frames extracted from the md2 object 79 | all_verts = [[x.v for x in my_object.frames[y].verts] for y in range(my_object.header.num_frames)] 80 | # List of vertex indices forming a triangular face 81 | tris = ([x.vertexIndices for x in my_object.triangles]) 82 | # uv coordinates (in q2 terms st coordinates) for projecting the skin on the model's faces 83 | # blender flips images upside down when loading so v = 1-t for blender imported images 84 | uvs_pcx = ([(x.s, x.t) for x in my_object.texture_coordinates]) 85 | uvs_others = ([(x.s, 1 - x.t) for x in my_object.texture_coordinates]) 86 | # blender uv coordinate system originates at lower left 87 | 88 | """ Lots of code (copy and pasted) that creates a mesh and adds it to the scene collection/outlines """ 89 | mesh = bpy.data.meshes.new(*object_name) # add the new mesh, * extracts string from list 90 | obj = bpy.data.objects.new(mesh.name, mesh) 91 | col = bpy.data.collections.get("Collection") 92 | col.objects.link(obj) 93 | bpy.context.view_layer.objects.active = obj 94 | 95 | # Creates mesh by taking first frame's vertices and connects them via indices in tris 96 | mesh.from_pydata(all_verts[0], [], tris) 97 | 98 | 99 | """ Create animation for animated models: set keyframe for each vertex in each frame individually """ 100 | # Create keyframes from first to last frame 101 | for i in range(my_object.header.num_frames): 102 | for idx, v in enumerate(obj.data.vertices): 103 | obj.data.vertices[idx].co = all_verts[i][idx] 104 | v.keyframe_insert('co', frame=i * 10) # parameter index=2 restricts keyframe to dimension 105 | 106 | # insert first keyframe after last one to yield cyclic animation 107 | for idx, v in enumerate(obj.data.vertices): 108 | obj.data.vertices[idx].co = all_verts[0][idx] 109 | v.keyframe_insert('co', frame=60) 110 | 111 | if not skin_path: 112 | ShowMessageBox("Defaulting to not assigning any material", "No skin found", "INFO") 113 | return {'FINISHED'} # no idea, seems to be necessary for the UI 114 | 115 | if skin_path.endswith('.pcx'): 116 | try: 117 | from PIL import Image 118 | except ModuleNotFoundError: 119 | ShowMessageBox("To load .pcx skin files, see the add-on README for manual PIL installation", "Module PIL not found", "INFO") 120 | return {'FINISHED'} # no idea, seems to be necessary for the UI 121 | 122 | """ UV Mapping: Create UV Layer, assign UV coordinates from md2 files for each face to each face's vertices """ 123 | uv_layer = (mesh.uv_layers.new()) 124 | mesh.uv_layers.active = uv_layer 125 | 126 | # add uv coordinates to each polygon (here: triangle since md2 only stores vertices and triangles) 127 | # note: faces and vertices are stored exactly in the order they were added 128 | for face_idx, face in enumerate(mesh.polygons): 129 | for idx, (vert_idx, loop_idx) in enumerate(zip(face.vertices, face.loop_indices)): 130 | if skin_path.endswith(".pcx"): 131 | print("PCX LOADED") 132 | uv_layer.data[loop_idx].uv = uvs_pcx[my_object.triangles[face_idx].textureIndices[idx]] 133 | else: 134 | uv_layer.data[loop_idx].uv = uvs_others[my_object.triangles[face_idx].textureIndices[idx]] 135 | 136 | """ Assign skin to mesh: Create material (barely understood copy and paste again) and set the image. 137 | Might work by manually setting the textures pixels to the pixels of a PIL.Image if it would actually 138 | load non-empty .pcx files 139 | idea/TODO: Write an own pcx loader from scratch ... """ 140 | # Creating material and corresponding notes (see Shading tab) 141 | mat = bpy.data.materials.new(name="md2_material") 142 | mat.use_nodes = True 143 | bsdf = mat.node_tree.nodes["Principled BSDF"] 144 | texImage = mat.node_tree.nodes.new('ShaderNodeTexImage') 145 | 146 | # if only a pcx version of the desired skin exists, load it via PIL 147 | # and copy pixels into the materials texture 148 | # otherwise use blender internal image loader (supporting .png, .jpg and .tga) 149 | print(f'skin_path: {skin_path}') 150 | if skin_path.endswith(".pcx"): 151 | skin = Image.open(skin_path) 152 | skin.load() 153 | skin = skin.convert("RGBA") 154 | skin_rgba = list(skin.getdata()) 155 | print("important", skin_rgba[:40]) 156 | print("path:", skin_path) 157 | texImage.image = bpy.data.images.new("MyImage", width=skin.size[0], height=skin.size[1]) 158 | tmp = [y for x in skin_rgba for y in x] 159 | max_val = max(tmp) 160 | texImage.image.pixels = [x / max_val for x in tmp] 161 | else: 162 | texImage.image = bpy.data.images.load(skin_path) 163 | 164 | # again copy and paste 165 | mat.node_tree.links.new(bsdf.inputs['Base Color'], texImage.outputs['Color']) 166 | 167 | # Assign it to object 168 | if obj.data.materials: 169 | obj.data.materials[0] = mat 170 | else: 171 | obj.data.materials.append(mat) 172 | print("YAY NO ERRORS!!") 173 | return {'FINISHED'} # no idea, seems to be necessary for the UI 174 | 175 | 176 | -------------------------------------------------------------------------------- /tests/data/bigleaf2.md2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/tests/data/bigleaf2.md2 -------------------------------------------------------------------------------- /tests/data/car.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/tests/data/car.jpg -------------------------------------------------------------------------------- /tests/data/car.md2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/tests/data/car.md2 -------------------------------------------------------------------------------- /tests/data/leaf02.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lennart-g/blender-md2-importer/f41dbbd17d26ab8a31ae660677e8db41ce5bc5dc/tests/data/leaf02.jpg -------------------------------------------------------------------------------- /tests/test_md2_noerror.py: -------------------------------------------------------------------------------- 1 | import os 2 | from util import MD2 3 | import pytest 4 | 5 | 6 | def test_models(): 7 | data_dir = "tests/data" 8 | models = os.listdir(data_dir) 9 | models = [x for x in models if x.lower().endswith(".md2")] 10 | 11 | for model in models: 12 | MD2.load_file(os.path.join(data_dir, model)) 13 | assert True 14 | 15 | 16 | def test_wrong_format(): 17 | with pytest.raises(ValueError): 18 | MD2.load_file('tests/data/car.jpg') 19 | 20 | -------------------------------------------------------------------------------- /tests/test_prepare_skin_paths.py: -------------------------------------------------------------------------------- 1 | from util.prepare_skin_paths import * 2 | 3 | 4 | def test_get_path_from_skin_name(): 5 | obj_path = "blender-md2-importer/tests/data/car.md2" 6 | skin_name = "'models/sk89q/w_sitters/car.jpg\x00ght.jpg\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" 7 | 8 | skin_path = get_path_from_skin_name(obj_path, skin_name) 9 | print(skin_path) 10 | assert skin_path == "blender-md2-importer/tests/data/car.jpg\x00ght.jpg" 11 | 12 | 13 | def test_get_existing_skin_path(): 14 | args = { 15 | 'skin_path': 'tests/data/car.jpg\x00ght.jpg'} 16 | out = get_existing_skin_path(**args) 17 | assert out is None 18 | 19 | args = { 20 | 'skin_path': 'tests/data/car.bmp'} 21 | out = get_existing_skin_path(**args) 22 | assert out == "tests/data/car.jpg" 23 | -------------------------------------------------------------------------------- /util/MD2.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass 2 | import struct 3 | from typing import List 4 | """ 5 | This part is used to load an md2 file into a MD2 dataclass object 6 | """ 7 | """ 8 | Dataclasses resembling structs in C. Used for storing MD2 information, being nested and forming one big dataclass 9 | """ 10 | 11 | @dataclass 12 | class vec3_t: 13 | x: float 14 | y: float 15 | z: float 16 | 17 | 18 | @dataclass 19 | class vertex_t: # 4 bytes in total 20 | v: list # unsigned char (in python 1 byte int), list of len 3, compressed vertex 21 | lightnormalindex: int # unsigned char, index to a normal vector for the lighting 22 | 23 | 24 | @dataclass 25 | class frame_t: # 40 + num_xyz*4 bytes 26 | scale: vec3_t # scale values, 3 elements 27 | translate: vec3_t # translation vector, 3 elements 28 | name: str # frame name, 16 characters aka bytes at most 29 | verts: List[vertex_t] # list of num_xyz vertex_t's 30 | 31 | 32 | @dataclass 33 | class md2_t: 34 | ident: int # magic number. must be equal to "IDP2" or 844121161 as int 35 | version: int # md2 version. must be equal to 8 36 | 37 | skinwidth: int # width of the texture 38 | skinheight: int # height of the texture 39 | framesize: int # size of one frame in bytes 40 | 41 | num_skins: int # number of textures 42 | num_xyz: int # number of vertices 43 | num_st: int # number of texture coordinates 44 | num_tris: int # number of triangles 45 | num_glcmds: int # number of opengl commands 46 | num_frames: int # total number of frames 47 | 48 | ofs_skins: int # offset to skin names (64 bytes each) 49 | ofs_st: int # offset to s-t texture coordinates 50 | ofs_tris: int # offset to triangles 51 | ofs_frames: int # offset to frame data 52 | ofs_glcmds: int # offset to opengl commands 53 | ofs_end: int # offset to end of file 54 | 55 | 56 | @dataclass 57 | class triangle_t: # 12 bytes each 58 | vertexIndices: List[int] # short, 3 values 59 | textureIndices: List[int] # short, 3 values 60 | 61 | 62 | @dataclass 63 | class textureCoordinate_t: # 4 bytes each 64 | s: int # short 65 | t: int # short 66 | 67 | 68 | @dataclass 69 | class glCommandVertex_t: 70 | s: float 71 | t: float 72 | vertexIndex: int 73 | 74 | 75 | @dataclass 76 | class glCommand_t: 77 | mode: str # string saying GL_TRIANGLE_STRIP or GL_TRIANGLE_FAN 78 | vertices: List[glCommandVertex_t] # all vertices rendered with said mode 79 | 80 | 81 | @dataclass 82 | class md2_object: 83 | header: md2_t 84 | skin_names: List[str] 85 | triangles: List[triangle_t] 86 | frames: List[frame_t] 87 | texture_coordinates: List[textureCoordinate_t] 88 | gl_commands: List[glCommand_t] 89 | 90 | """ 91 | Functions used to create an MD2 Object 92 | """ 93 | def load_gl_commands(gl_command_bytes): 94 | """ 95 | Loads gl_commands which are a list of GL_TRIANGLE_STRIP and GL_TRIANGLE_FAN calls that reduce fps 96 | Code differs much from original loading code in C 97 | :param gl_command_bytes: bytes belonging to gl_commands lump from md2 file 98 | :return: list of dataclasses storing gl commands 99 | """ 100 | offset = 0 101 | gl_commands = list() 102 | while True: # ends when mode is 0 103 | (mode,) = struct.unpack(" 0: 106 | mode = "GL_TRIANGLE_STRIP" 107 | elif mode == 0: 108 | offset += 4 109 | break 110 | else: 111 | mode = "GL_TRIANGLE_FAN" 112 | offset += 4 113 | gl_vertices = list() 114 | for i in range(num_verts): 115 | s_and_t = struct.unpack("