ADDED: Support M3D model file format (meshes and materials) #2648
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Ray
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3 changed files with 6700 additions and 0 deletions
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@ -192,6 +192,7 @@
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#define SUPPORT_FILEFORMAT_IQM 1
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#define SUPPORT_FILEFORMAT_IQM 1
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#define SUPPORT_FILEFORMAT_GLTF 1
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#define SUPPORT_FILEFORMAT_GLTF 1
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#define SUPPORT_FILEFORMAT_VOX 1
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#define SUPPORT_FILEFORMAT_VOX 1
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#define SUPPORT_FILEFORMAT_M3D 1
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// Support procedural mesh generation functions, uses external par_shapes.h library
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// Support procedural mesh generation functions, uses external par_shapes.h library
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// NOTE: Some generated meshes DO NOT include generated texture coordinates
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// NOTE: Some generated meshes DO NOT include generated texture coordinates
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#define SUPPORT_MESH_GENERATION 1
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#define SUPPORT_MESH_GENERATION 1
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6530
src/external/m3d.h
vendored
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6530
src/external/m3d.h
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File diff suppressed because it is too large
Load diff
169
src/rmodels.c
169
src/rmodels.c
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@ -12,6 +12,7 @@
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* #define SUPPORT_FILEFORMAT_IQM
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* #define SUPPORT_FILEFORMAT_IQM
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* #define SUPPORT_FILEFORMAT_GLTF
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* #define SUPPORT_FILEFORMAT_GLTF
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* #define SUPPORT_FILEFORMAT_VOX
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* #define SUPPORT_FILEFORMAT_VOX
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* #define SUPPORT_FILEFORMAT_M3D
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* Selected desired fileformats to be supported for model data loading.
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* Selected desired fileformats to be supported for model data loading.
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*
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*
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* #define SUPPORT_MESH_GENERATION
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* #define SUPPORT_MESH_GENERATION
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@ -86,6 +87,19 @@
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#include "external/vox_loader.h" // VOX file format loading (MagikaVoxel)
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#include "external/vox_loader.h" // VOX file format loading (MagikaVoxel)
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#endif
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#endif
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#if defined(SUPPORT_FILEFORMAT_M3D)
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#define M3D_MALLOC RL_MALLOC
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#define M3D_REALLOC RL_REALLOC
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#define M3D_FREE RL_FREE
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// Let the M3D loader know about stb_image is used in this project,
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// to allow it to use on textures loading
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#include "external/stb_image.h"
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#define M3D_IMPLEMENTATION
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#include "external/m3d.h" // Model3D file format loading
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#endif
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#if defined(SUPPORT_MESH_GENERATION)
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#if defined(SUPPORT_MESH_GENERATION)
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#define PAR_MALLOC(T, N) ((T*)RL_MALLOC(N*sizeof(T)))
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#define PAR_MALLOC(T, N) ((T*)RL_MALLOC(N*sizeof(T)))
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#define PAR_CALLOC(T, N) ((T*)RL_CALLOC(N*sizeof(T), 1))
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#define PAR_CALLOC(T, N) ((T*)RL_CALLOC(N*sizeof(T), 1))
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@ -141,6 +155,9 @@ static Model LoadGLTF(const char *fileName); // Load GLTF mesh data
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#if defined(SUPPORT_FILEFORMAT_VOX)
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#if defined(SUPPORT_FILEFORMAT_VOX)
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static Model LoadVOX(const char *filename); // Load VOX mesh data
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static Model LoadVOX(const char *filename); // Load VOX mesh data
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#endif
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#endif
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#if defined(SUPPORT_FILEFORMAT_M3D)
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static Model LoadM3D(const char *filename); // Load M3D mesh data
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#endif
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//----------------------------------------------------------------------------------
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//----------------------------------------------------------------------------------
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// Module Functions Definition
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// Module Functions Definition
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@ -5101,4 +5118,156 @@ static Model LoadVOX(const char *fileName)
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}
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}
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#endif
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#endif
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#if defined(SUPPORT_FILEFORMAT_M3D)
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// Hook LoadFileData()/UnloadFileData() calls to M3D loaders
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unsigned char *m3d_loaderhook(char *fn, unsigned int *len) { return LoadFileData((const char *)fn, len); }
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void m3d_freehook(void *data) { UnloadFileData((unsigned char *)data); }
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// Load M3D mesh data
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static Model LoadM3D(const char *fileName)
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{
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Model model = { 0 };
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m3d_t *m3d = NULL;
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m3dp_t *prop = NULL;
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unsigned int bytesRead = 0;
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unsigned char *fileData = LoadFileData(fileName, &bytesRead);
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int i, j, k, l, mi = -2;
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if (fileData != NULL)
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{
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m3d = m3d_load(fileData, m3d_loaderhook, m3d_freehook, NULL);
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if (!m3d || (m3d->errcode != M3D_SUCCESS))
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{
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TRACELOG(LOG_WARNING, "MODEL: [%s] Failed to load M3D data", fileName);
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return model;
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}
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else TRACELOG(LOG_INFO, "MODEL: [%s] M3D data loaded successfully: %i faces/%i materials", fileName, m3d->numface, m3d->nummaterial);
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if (m3d->nummaterial > 0)
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{
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model.meshCount = model.materialCount = m3d->nummaterial;
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TRACELOG(LOG_INFO, "MODEL: model has %i material meshes", model.materialCount);
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}
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else
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{
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model.meshCount = model.materialCount = 1;
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TRACELOG(LOG_INFO, "MODEL: No materials, putting all meshes in a default material");
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}
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model.meshes = (Mesh *)RL_CALLOC(model.meshCount, sizeof(Mesh));
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model.meshMaterial = (int *)RL_CALLOC(model.meshCount, sizeof(int));
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model.materials = (Material *)RL_CALLOC(model.meshCount + 1, sizeof(Material));
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// Map no material to index 0 with default shader, everything else materialid + 1
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model.materials[0] = LoadMaterialDefault();
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model.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = (Texture2D){ rlGetTextureIdDefault(), 1, 1, 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };
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for (i = l = 0, k = -1; i < m3d->numface; i++, l++)
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{
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// Materials are grouped together
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if (mi != m3d->face[i].materialid)
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{
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k++;
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mi = m3d->face[i].materialid;
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for (j = i, l = 0; (j < m3d->numface) && (mi == m3d->face[j].materialid); j++, l++);
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model.meshes[k].vertexCount = l*3;
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model.meshes[k].triangleCount = l;
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model.meshes[k].vertices = (float *)RL_CALLOC(model.meshes[k].vertexCount*3, sizeof(float));
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model.meshes[k].texcoords = (float *)RL_CALLOC(model.meshes[k].vertexCount*2, sizeof(float));
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model.meshes[k].normals = (float *)RL_CALLOC(model.meshes[k].vertexCount*3, sizeof(float));
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model.meshMaterial[k] = mi + 1;
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l = 0;
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}
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// Process meshes per material, add triangles
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model.meshes[k].vertices[l * 9 + 0] = m3d->vertex[m3d->face[i].vertex[0]].x;
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model.meshes[k].vertices[l * 9 + 1] = m3d->vertex[m3d->face[i].vertex[0]].y;
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model.meshes[k].vertices[l * 9 + 2] = m3d->vertex[m3d->face[i].vertex[0]].z;
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model.meshes[k].vertices[l * 9 + 3] = m3d->vertex[m3d->face[i].vertex[1]].x;
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model.meshes[k].vertices[l * 9 + 4] = m3d->vertex[m3d->face[i].vertex[1]].y;
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model.meshes[k].vertices[l * 9 + 5] = m3d->vertex[m3d->face[i].vertex[1]].z;
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model.meshes[k].vertices[l * 9 + 6] = m3d->vertex[m3d->face[i].vertex[2]].x;
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model.meshes[k].vertices[l * 9 + 7] = m3d->vertex[m3d->face[i].vertex[2]].y;
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model.meshes[k].vertices[l * 9 + 8] = m3d->vertex[m3d->face[i].vertex[2]].z;
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if (m3d->face[i].texcoord[0] != M3D_UNDEF)
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{
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model.meshes[k].texcoords[l * 6 + 0] = m3d->tmap[m3d->face[i].texcoord[0]].u;
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model.meshes[k].texcoords[l * 6 + 1] = m3d->tmap[m3d->face[i].texcoord[0]].v;
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model.meshes[k].texcoords[l * 6 + 2] = m3d->tmap[m3d->face[i].texcoord[1]].u;
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model.meshes[k].texcoords[l * 6 + 3] = m3d->tmap[m3d->face[i].texcoord[1]].v;
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model.meshes[k].texcoords[l * 6 + 4] = m3d->tmap[m3d->face[i].texcoord[2]].u;
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model.meshes[k].texcoords[l * 6 + 5] = m3d->tmap[m3d->face[i].texcoord[2]].v;
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}
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if (m3d->face[i].normal[0] != M3D_UNDEF)
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{
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model.meshes[k].normals[l * 9 + 0] = m3d->vertex[m3d->face[i].normal[0]].x;
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model.meshes[k].normals[l * 9 + 1] = m3d->vertex[m3d->face[i].normal[0]].y;
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model.meshes[k].normals[l * 9 + 2] = m3d->vertex[m3d->face[i].normal[0]].z;
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model.meshes[k].normals[l * 9 + 3] = m3d->vertex[m3d->face[i].normal[1]].x;
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model.meshes[k].normals[l * 9 + 4] = m3d->vertex[m3d->face[i].normal[1]].y;
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model.meshes[k].normals[l * 9 + 5] = m3d->vertex[m3d->face[i].normal[1]].z;
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model.meshes[k].normals[l * 9 + 6] = m3d->vertex[m3d->face[i].normal[2]].x;
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model.meshes[k].normals[l * 9 + 7] = m3d->vertex[m3d->face[i].normal[2]].y;
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model.meshes[k].normals[l * 9 + 8] = m3d->vertex[m3d->face[i].normal[2]].z;
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}
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}
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for (i = 0; i < m3d->nummaterial; i++)
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{
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model.materials[i + 1] = LoadMaterialDefault();
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model.materials[i + 1].maps[MATERIAL_MAP_DIFFUSE].texture = (Texture2D){ rlGetTextureIdDefault(), 1, 1, 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };
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for (j = 0; j < m3d->material[i].numprop; j++)
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{
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prop = &m3d->material[i].prop[j];
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switch (prop->type)
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{
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case m3dp_Kd:
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{
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memcpy(&model.materials[i + 1].maps[MATERIAL_MAP_DIFFUSE].color, &prop->value.color, 4);
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model.materials[i + 1].maps[MATERIAL_MAP_DIFFUSE].value = 0.0f;
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} break;
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case m3dp_Ks:
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{
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memcpy(&model.materials[i + 1].maps[MATERIAL_MAP_SPECULAR].color, &prop->value.color, 4);
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model.materials[i + 1].maps[MATERIAL_MAP_SPECULAR].value = 0.0f;
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} break;
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case m3dp_Ke:
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{
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memcpy(&model.materials[i + 1].maps[MATERIAL_MAP_EMISSION].color, &prop->value.color, 4);
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model.materials[i + 1].maps[MATERIAL_MAP_EMISSION].value = 0.0f;
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} break;
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case m3dp_Pm:
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{
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model.materials[i + 1].maps[MATERIAL_MAP_METALNESS].value = prop->value.fnum;
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} break;
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case m3dp_Pr:
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{
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model.materials[i + 1].maps[MATERIAL_MAP_ROUGHNESS].value = prop->value.fnum;
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} break;
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case m3dp_Ps:
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{
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model.materials[i + 1].maps[MATERIAL_MAP_NORMAL].color = WHITE;
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model.materials[i + 1].maps[MATERIAL_MAP_NORMAL].value = prop->value.fnum;
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} break;
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default: break;
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}
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}
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}
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m3d_free(m3d);
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UnloadFileData(fileData);
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}
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return model;
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}
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#endif
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#endif // SUPPORT_MODULE_RMODELS
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#endif // SUPPORT_MODULE_RMODELS
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