703 lines
23 KiB
C++
703 lines
23 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2021, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file Defines helper data structures for the import of 3DS files */
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#ifndef AI_3DSFILEHELPER_H_INC
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#define AI_3DSFILEHELPER_H_INC
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#include <assimp/SmoothingGroups.h>
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#include <assimp/SpatialSort.h>
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#include <assimp/StringUtils.h>
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#include <assimp/anim.h>
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#include <assimp/camera.h>
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#include <assimp/light.h>
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#include <assimp/material.h>
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#include <assimp/qnan.h>
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#include <stdio.h> //sprintf
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namespace Assimp {
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namespace D3DS {
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#include <assimp/Compiler/pushpack1.h>
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// ---------------------------------------------------------------------------
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/** Defines chunks and data structures.
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*/
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namespace Discreet3DS {
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//! data structure for a single chunk in a .3ds file
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struct Chunk {
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uint16_t Flag;
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uint32_t Size;
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} PACK_STRUCT;
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//! Used for shading field in material3ds structure
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//! From AutoDesk 3ds SDK
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typedef enum {
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// translated to gouraud shading with wireframe active
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Wire = 0x0,
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// if this material is set, no vertex normals will
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// be calculated for the model. Face normals + gouraud
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Flat = 0x1,
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// standard gouraud shading
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Gouraud = 0x2,
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// phong shading
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Phong = 0x3,
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// cooktorrance or anistropic phong shading ...
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// the exact meaning is unknown, if you know it
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// feel free to tell me ;-)
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Metal = 0x4,
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// required by the ASE loader
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Blinn = 0x5
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} shadetype3ds;
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// Flags for animated keys
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enum {
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KEY_USE_TENS = 0x1,
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KEY_USE_CONT = 0x2,
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KEY_USE_BIAS = 0x4,
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KEY_USE_EASE_TO = 0x8,
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KEY_USE_EASE_FROM = 0x10
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};
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enum {
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// ********************************************************************
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// Basic chunks which can be found everywhere in the file
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CHUNK_VERSION = 0x0002,
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CHUNK_RGBF = 0x0010, // float4 R; float4 G; float4 B
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CHUNK_RGBB = 0x0011, // int1 R; int1 G; int B
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// Linear color values (gamma = 2.2?)
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CHUNK_LINRGBF = 0x0013, // float4 R; float4 G; float4 B
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CHUNK_LINRGBB = 0x0012, // int1 R; int1 G; int B
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CHUNK_PERCENTW = 0x0030, // int2 percentage
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CHUNK_PERCENTF = 0x0031, // float4 percentage
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CHUNK_PERCENTD = 0x0032, // float8 percentage
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// ********************************************************************
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// Prj master chunk
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CHUNK_PRJ = 0xC23D,
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// MDLI master chunk
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CHUNK_MLI = 0x3DAA,
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// Primary main chunk of the .3ds file
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CHUNK_MAIN = 0x4D4D,
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// Mesh main chunk
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CHUNK_OBJMESH = 0x3D3D,
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// Specifies the background color of the .3ds file
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// This is passed through the material system for
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// viewing purposes.
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CHUNK_BKGCOLOR = 0x1200,
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// Specifies the ambient base color of the scene.
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// This is added to all materials in the file
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CHUNK_AMBCOLOR = 0x2100,
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// Specifies the background image for the whole scene
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// This value is passed through the material system
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// to the viewer
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CHUNK_BIT_MAP = 0x1100,
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CHUNK_BIT_MAP_EXISTS = 0x1101,
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// ********************************************************************
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// Viewport related stuff. Ignored
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CHUNK_DEFAULT_VIEW = 0x3000,
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CHUNK_VIEW_TOP = 0x3010,
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CHUNK_VIEW_BOTTOM = 0x3020,
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CHUNK_VIEW_LEFT = 0x3030,
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CHUNK_VIEW_RIGHT = 0x3040,
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CHUNK_VIEW_FRONT = 0x3050,
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CHUNK_VIEW_BACK = 0x3060,
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CHUNK_VIEW_USER = 0x3070,
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CHUNK_VIEW_CAMERA = 0x3080,
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// ********************************************************************
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// Mesh chunks
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CHUNK_OBJBLOCK = 0x4000,
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CHUNK_TRIMESH = 0x4100,
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CHUNK_VERTLIST = 0x4110,
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CHUNK_VERTFLAGS = 0x4111,
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CHUNK_FACELIST = 0x4120,
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CHUNK_FACEMAT = 0x4130,
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CHUNK_MAPLIST = 0x4140,
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CHUNK_SMOOLIST = 0x4150,
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CHUNK_TRMATRIX = 0x4160,
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CHUNK_MESHCOLOR = 0x4165,
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CHUNK_TXTINFO = 0x4170,
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CHUNK_LIGHT = 0x4600,
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CHUNK_CAMERA = 0x4700,
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CHUNK_HIERARCHY = 0x4F00,
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// Specifies the global scaling factor. This is applied
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// to the root node's transformation matrix
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CHUNK_MASTER_SCALE = 0x0100,
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// ********************************************************************
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// Material chunks
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CHUNK_MAT_MATERIAL = 0xAFFF,
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// asciiz containing the name of the material
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CHUNK_MAT_MATNAME = 0xA000,
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CHUNK_MAT_AMBIENT = 0xA010, // followed by color chunk
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CHUNK_MAT_DIFFUSE = 0xA020, // followed by color chunk
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CHUNK_MAT_SPECULAR = 0xA030, // followed by color chunk
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// Specifies the shininess of the material
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// followed by percentage chunk
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CHUNK_MAT_SHININESS = 0xA040,
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CHUNK_MAT_SHININESS_PERCENT = 0xA041,
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// Specifies the shading mode to be used
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// followed by a short
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CHUNK_MAT_SHADING = 0xA100,
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// NOTE: Emissive color (self illumination) seems not
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// to be a color but a single value, type is unknown.
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// Make the parser accept both of them.
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// followed by percentage chunk (?)
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CHUNK_MAT_SELF_ILLUM = 0xA080,
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// Always followed by percentage chunk (?)
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CHUNK_MAT_SELF_ILPCT = 0xA084,
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// Always followed by percentage chunk
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CHUNK_MAT_TRANSPARENCY = 0xA050,
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// Diffuse texture channel 0
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CHUNK_MAT_TEXTURE = 0xA200,
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// Contains opacity information for each texel
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CHUNK_MAT_OPACMAP = 0xA210,
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// Contains a reflection map to be used to reflect
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// the environment. This is partially supported.
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CHUNK_MAT_REFLMAP = 0xA220,
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// Self Illumination map (emissive colors)
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CHUNK_MAT_SELFIMAP = 0xA33d,
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// Bumpmap. Not specified whether it is a heightmap
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// or a normal map. Assme it is a heightmap since
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// artist normally prefer this format.
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CHUNK_MAT_BUMPMAP = 0xA230,
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// Specular map. Seems to influence the specular color
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CHUNK_MAT_SPECMAP = 0xA204,
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// Holds shininess data.
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CHUNK_MAT_MAT_SHINMAP = 0xA33C,
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// Scaling in U/V direction.
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// (need to gen separate UV coordinate set
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// and do this by hand)
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CHUNK_MAT_MAP_USCALE = 0xA354,
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CHUNK_MAT_MAP_VSCALE = 0xA356,
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// Translation in U/V direction.
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// (need to gen separate UV coordinate set
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// and do this by hand)
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CHUNK_MAT_MAP_UOFFSET = 0xA358,
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CHUNK_MAT_MAP_VOFFSET = 0xA35a,
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// UV-coordinates rotation around the z-axis
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// Assumed to be in radians.
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CHUNK_MAT_MAP_ANG = 0xA35C,
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// Tiling flags for 3DS files
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CHUNK_MAT_MAP_TILING = 0xa351,
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// Specifies the file name of a texture
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CHUNK_MAPFILE = 0xA300,
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// Specifies whether a materail requires two-sided rendering
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CHUNK_MAT_TWO_SIDE = 0xA081,
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// ********************************************************************
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// Main keyframer chunk. Contains translation/rotation/scaling data
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CHUNK_KEYFRAMER = 0xB000,
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// Supported sub chunks
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CHUNK_TRACKINFO = 0xB002,
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CHUNK_TRACKOBJNAME = 0xB010,
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CHUNK_TRACKDUMMYOBJNAME = 0xB011,
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CHUNK_TRACKPIVOT = 0xB013,
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CHUNK_TRACKPOS = 0xB020,
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CHUNK_TRACKROTATE = 0xB021,
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CHUNK_TRACKSCALE = 0xB022,
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// ********************************************************************
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// Keyframes for various other stuff in the file
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// Partially ignored
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CHUNK_AMBIENTKEY = 0xB001,
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CHUNK_TRACKMORPH = 0xB026,
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CHUNK_TRACKHIDE = 0xB029,
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CHUNK_OBJNUMBER = 0xB030,
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CHUNK_TRACKCAMERA = 0xB003,
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CHUNK_TRACKFOV = 0xB023,
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CHUNK_TRACKROLL = 0xB024,
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CHUNK_TRACKCAMTGT = 0xB004,
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CHUNK_TRACKLIGHT = 0xB005,
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CHUNK_TRACKLIGTGT = 0xB006,
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CHUNK_TRACKSPOTL = 0xB007,
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CHUNK_FRAMES = 0xB008,
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// ********************************************************************
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// light sub-chunks
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CHUNK_DL_OFF = 0x4620,
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CHUNK_DL_OUTER_RANGE = 0x465A,
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CHUNK_DL_INNER_RANGE = 0x4659,
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CHUNK_DL_MULTIPLIER = 0x465B,
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CHUNK_DL_EXCLUDE = 0x4654,
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CHUNK_DL_ATTENUATE = 0x4625,
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CHUNK_DL_SPOTLIGHT = 0x4610,
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// camera sub-chunks
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CHUNK_CAM_RANGES = 0x4720
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};
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}
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// ---------------------------------------------------------------------------
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/** Helper structure representing a 3ds mesh face */
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struct Face : public FaceWithSmoothingGroup {
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};
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable : 4315)
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#endif // _MSC_VER
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// ---------------------------------------------------------------------------
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/** Helper structure representing a texture */
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struct Texture {
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//! Default constructor
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Texture() AI_NO_EXCEPT
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: mTextureBlend(0.0f),
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mMapName(),
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mOffsetU(0.0),
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mOffsetV(0.0),
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mScaleU(1.0),
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mScaleV(1.0),
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mRotation(0.0),
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mMapMode(aiTextureMapMode_Wrap),
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bPrivate(),
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iUVSrc(0) {
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mTextureBlend = get_qnan();
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}
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Texture(const Texture &other) :
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mTextureBlend(other.mTextureBlend),
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mMapName(other.mMapName),
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mOffsetU(other.mOffsetU),
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mOffsetV(other.mOffsetV),
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mScaleU(other.mScaleU),
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mScaleV(other.mScaleV),
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mRotation(other.mRotation),
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mMapMode(other.mMapMode),
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bPrivate(other.bPrivate),
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iUVSrc(other.iUVSrc) {
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// empty
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}
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Texture(Texture &&other) AI_NO_EXCEPT : mTextureBlend(other.mTextureBlend),
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mMapName(std::move(other.mMapName)),
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mOffsetU(other.mOffsetU),
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mOffsetV(other.mOffsetV),
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mScaleU(other.mScaleU),
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mScaleV(other.mScaleV),
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mRotation(other.mRotation),
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mMapMode(other.mMapMode),
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bPrivate(other.bPrivate),
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iUVSrc(other.iUVSrc) {
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// empty
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}
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Texture &operator=(Texture &&other) AI_NO_EXCEPT {
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if (this == &other) {
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return *this;
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}
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mTextureBlend = other.mTextureBlend;
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mMapName = std::move(other.mMapName);
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mOffsetU = other.mOffsetU;
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mOffsetV = other.mOffsetV;
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mScaleU = other.mScaleU;
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mScaleV = other.mScaleV;
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mRotation = other.mRotation;
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mMapMode = other.mMapMode;
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bPrivate = other.bPrivate;
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iUVSrc = other.iUVSrc;
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return *this;
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}
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//! Specifies the blend factor for the texture
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ai_real mTextureBlend;
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//! Specifies the filename of the texture
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std::string mMapName;
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//! Specifies texture coordinate offsets/scaling/rotations
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ai_real mOffsetU;
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ai_real mOffsetV;
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ai_real mScaleU;
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ai_real mScaleV;
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ai_real mRotation;
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//! Specifies the mapping mode to be used for the texture
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aiTextureMapMode mMapMode;
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//! Used internally
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bool bPrivate;
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int iUVSrc;
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};
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#include <assimp/Compiler/poppack1.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif // _MSC_VER
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// ---------------------------------------------------------------------------
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/** Helper structure representing a 3ds material */
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struct Material {
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//! Default constructor has been deleted
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Material() :
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mName(),
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mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
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mSpecularExponent(ai_real(0.0)),
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mShininessStrength(ai_real(1.0)),
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mShading(Discreet3DS::Gouraud),
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mTransparency(ai_real(1.0)),
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mBumpHeight(ai_real(1.0)),
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mTwoSided(false) {
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// empty
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}
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//! Constructor with explicit name
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explicit Material(const std::string &name) :
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mName(name),
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mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
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mSpecularExponent(ai_real(0.0)),
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mShininessStrength(ai_real(1.0)),
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mShading(Discreet3DS::Gouraud),
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mTransparency(ai_real(1.0)),
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mBumpHeight(ai_real(1.0)),
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mTwoSided(false) {
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// empty
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}
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Material(const Material &other) :
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mName(other.mName),
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mDiffuse(other.mDiffuse),
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mSpecularExponent(other.mSpecularExponent),
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mShininessStrength(other.mShininessStrength),
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mSpecular(other.mSpecular),
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mAmbient(other.mAmbient),
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mShading(other.mShading),
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mTransparency(other.mTransparency),
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sTexDiffuse(other.sTexDiffuse),
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sTexOpacity(other.sTexOpacity),
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sTexSpecular(other.sTexSpecular),
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sTexReflective(other.sTexReflective),
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sTexBump(other.sTexBump),
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sTexEmissive(other.sTexEmissive),
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sTexShininess(other.sTexShininess),
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mBumpHeight(other.mBumpHeight),
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mEmissive(other.mEmissive),
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sTexAmbient(other.sTexAmbient),
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mTwoSided(other.mTwoSided) {
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// empty
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}
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//! Move constructor. This is explicitly written because MSVC doesn't support defaulting it
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Material(Material &&other) AI_NO_EXCEPT : mName(std::move(other.mName)),
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mDiffuse(other.mDiffuse),
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mSpecularExponent(other.mSpecularExponent),
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mShininessStrength(other.mShininessStrength),
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mSpecular(other.mSpecular),
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mAmbient(other.mAmbient),
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mShading(other.mShading),
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mTransparency(other.mTransparency),
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sTexDiffuse(std::move(other.sTexDiffuse)),
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sTexOpacity(std::move(other.sTexOpacity)),
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sTexSpecular(std::move(other.sTexSpecular)),
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sTexReflective(std::move(other.sTexReflective)),
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sTexBump(std::move(other.sTexBump)),
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sTexEmissive(std::move(other.sTexEmissive)),
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sTexShininess(std::move(other.sTexShininess)),
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mBumpHeight(other.mBumpHeight),
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mEmissive(other.mEmissive),
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sTexAmbient(std::move(other.sTexAmbient)),
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mTwoSided(other.mTwoSided) {
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// empty
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}
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Material &operator=(Material &&other) AI_NO_EXCEPT {
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if (this == &other) {
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return *this;
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}
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mName = std::move(other.mName);
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mDiffuse = other.mDiffuse;
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mSpecularExponent = other.mSpecularExponent;
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mShininessStrength = other.mShininessStrength,
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mSpecular = other.mSpecular;
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mAmbient = other.mAmbient;
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mShading = other.mShading;
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mTransparency = other.mTransparency;
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sTexDiffuse = std::move(other.sTexDiffuse);
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sTexOpacity = std::move(other.sTexOpacity);
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sTexSpecular = std::move(other.sTexSpecular);
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sTexReflective = std::move(other.sTexReflective);
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sTexBump = std::move(other.sTexBump);
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sTexEmissive = std::move(other.sTexEmissive);
|
|
sTexShininess = std::move(other.sTexShininess);
|
|
mBumpHeight = other.mBumpHeight;
|
|
mEmissive = other.mEmissive;
|
|
sTexAmbient = std::move(other.sTexAmbient);
|
|
mTwoSided = other.mTwoSided;
|
|
|
|
return *this;
|
|
}
|
|
|
|
virtual ~Material() {
|
|
// empty
|
|
}
|
|
|
|
//! Name of the material
|
|
std::string mName;
|
|
//! Diffuse color of the material
|
|
aiColor3D mDiffuse;
|
|
//! Specular exponent
|
|
ai_real mSpecularExponent;
|
|
//! Shininess strength, in percent
|
|
ai_real mShininessStrength;
|
|
//! Specular color of the material
|
|
aiColor3D mSpecular;
|
|
//! Ambient color of the material
|
|
aiColor3D mAmbient;
|
|
//! Shading type to be used
|
|
Discreet3DS::shadetype3ds mShading;
|
|
//! Opacity of the material
|
|
ai_real mTransparency;
|
|
//! Diffuse texture channel
|
|
Texture sTexDiffuse;
|
|
//! Opacity texture channel
|
|
Texture sTexOpacity;
|
|
//! Specular texture channel
|
|
Texture sTexSpecular;
|
|
//! Reflective texture channel
|
|
Texture sTexReflective;
|
|
//! Bump texture channel
|
|
Texture sTexBump;
|
|
//! Emissive texture channel
|
|
Texture sTexEmissive;
|
|
//! Shininess texture channel
|
|
Texture sTexShininess;
|
|
//! Scaling factor for the bump values
|
|
ai_real mBumpHeight;
|
|
//! Emissive color
|
|
aiColor3D mEmissive;
|
|
//! Ambient texture channel
|
|
//! (used by the ASE format)
|
|
Texture sTexAmbient;
|
|
//! True if the material must be rendered from two sides
|
|
bool mTwoSided;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Helper structure to represent a 3ds file mesh */
|
|
struct Mesh : public MeshWithSmoothingGroups<D3DS::Face> {
|
|
//! Default constructor has been deleted
|
|
Mesh() = delete;
|
|
|
|
//! Constructor with explicit name
|
|
explicit Mesh(const std::string &name) :
|
|
mName(name) {
|
|
}
|
|
|
|
//! Name of the mesh
|
|
std::string mName;
|
|
|
|
//! Texture coordinates
|
|
std::vector<aiVector3D> mTexCoords;
|
|
|
|
//! Face materials
|
|
std::vector<unsigned int> mFaceMaterials;
|
|
|
|
//! Local transformation matrix
|
|
aiMatrix4x4 mMat;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Float key - quite similar to aiVectorKey and aiQuatKey. Both are in the
|
|
C-API, so it would be difficult to make them a template. */
|
|
struct aiFloatKey {
|
|
double mTime; ///< The time of this key
|
|
ai_real mValue; ///< The value of this key
|
|
|
|
#ifdef __cplusplus
|
|
|
|
// time is not compared
|
|
bool operator==(const aiFloatKey &o) const { return o.mValue == this->mValue; }
|
|
|
|
bool operator!=(const aiFloatKey &o) const { return o.mValue != this->mValue; }
|
|
|
|
// Only time is compared. This operator is defined
|
|
// for use with std::sort
|
|
bool operator<(const aiFloatKey &o) const { return mTime < o.mTime; }
|
|
|
|
bool operator>(const aiFloatKey &o) const { return mTime > o.mTime; }
|
|
|
|
#endif
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Helper structure to represent a 3ds file node */
|
|
struct Node {
|
|
Node() = delete;
|
|
|
|
explicit Node(const std::string &name) :
|
|
mParent(nullptr),
|
|
mName(name),
|
|
mInstanceNumber(0),
|
|
mHierarchyPos(0),
|
|
mHierarchyIndex(0),
|
|
mInstanceCount(1) {
|
|
aRotationKeys.reserve(20);
|
|
aPositionKeys.reserve(20);
|
|
aScalingKeys.reserve(20);
|
|
}
|
|
|
|
~Node() {
|
|
for (unsigned int i = 0; i < mChildren.size(); ++i)
|
|
delete mChildren[i];
|
|
}
|
|
|
|
//! Pointer to the parent node
|
|
Node *mParent;
|
|
|
|
//! Holds all child nodes
|
|
std::vector<Node *> mChildren;
|
|
|
|
//! Name of the node
|
|
std::string mName;
|
|
|
|
//! InstanceNumber of the node
|
|
int32_t mInstanceNumber;
|
|
|
|
//! Dummy nodes: real name to be combined with the $$$DUMMY
|
|
std::string mDummyName;
|
|
|
|
//! Position of the node in the hierarchy (tree depth)
|
|
int16_t mHierarchyPos;
|
|
|
|
//! Index of the node
|
|
int16_t mHierarchyIndex;
|
|
|
|
//! Rotation keys loaded from the file
|
|
std::vector<aiQuatKey> aRotationKeys;
|
|
|
|
//! Position keys loaded from the file
|
|
std::vector<aiVectorKey> aPositionKeys;
|
|
|
|
//! Scaling keys loaded from the file
|
|
std::vector<aiVectorKey> aScalingKeys;
|
|
|
|
// For target lights (spot lights and directional lights):
|
|
// The position of the target
|
|
std::vector<aiVectorKey> aTargetPositionKeys;
|
|
|
|
// For cameras: the camera roll angle
|
|
std::vector<aiFloatKey> aCameraRollKeys;
|
|
|
|
//! Pivot position loaded from the file
|
|
aiVector3D vPivot;
|
|
|
|
//instance count, will be kept only for the first node
|
|
int32_t mInstanceCount;
|
|
|
|
//! Add a child node, setup the right parent node for it
|
|
//! \param pc Node to be 'adopted'
|
|
inline Node &push_back(Node *pc) {
|
|
mChildren.push_back(pc);
|
|
pc->mParent = this;
|
|
return *this;
|
|
}
|
|
};
|
|
// ---------------------------------------------------------------------------
|
|
/** Helper structure analogue to aiScene */
|
|
struct Scene {
|
|
//! List of all materials loaded
|
|
//! NOTE: 3ds references materials globally
|
|
std::vector<Material> mMaterials;
|
|
|
|
//! List of all meshes loaded
|
|
std::vector<Mesh> mMeshes;
|
|
|
|
//! List of all cameras loaded
|
|
std::vector<aiCamera *> mCameras;
|
|
|
|
//! List of all lights loaded
|
|
std::vector<aiLight *> mLights;
|
|
|
|
//! Pointer to the root node of the scene
|
|
// --- moved to main class
|
|
// Node* pcRootNode;
|
|
};
|
|
|
|
} // end of namespace D3DS
|
|
} // end of namespace Assimp
|
|
|
|
#endif // AI_XFILEHELPER_H_INC
|