@ -5,10 +5,10 @@
* CONFIGURATION :
*
* # define SUPPORT_FILEFORMAT_OBJ
* Selected desired fileformats to be supported for loading .
*
* # define SUPPORT_FILEFORMAT_MTL
* Selected desired fileformats to be supported for loading .
* # define SUPPORT_FILEFORMAT_IQM
* # define SUPPORT_FILEFORMAT_GLTF
* Selected desired fileformats to be supported for model data loading .
*
* # define SUPPORT_MESH_GENERATION
* Support procedural mesh generation functions , uses external par_shapes . h library
@ -48,8 +48,20 @@
# include "rlgl.h" // raylib OpenGL abstraction layer to OpenGL 1.1, 2.1, 3.3+ or ES2
# define PAR_SHAPES_IMPLEMENTATION
# include "external/par_shapes.h" // Shapes 3d parametric generation
# if defined(SUPPORT_FILEFORMAT_IQM)
# define RIQM_IMPLEMENTATION
# include "external/riqm.h" // IQM file format loading
# endif
# if defined(SUPPORT_FILEFORMAT_GLTF)
# define CGLTF_IMPLEMENTATION
# include "external/cgltf.h" // glTF file format loading
# endif
# if defined(SUPPORT_MESH_GENERATION)
# define PAR_SHAPES_IMPLEMENTATION
# include "external/par_shapes.h" // Shapes 3d parametric generation
# endif
/ / - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/ / Defines and Macros
@ -75,6 +87,12 @@ static Mesh LoadOBJ(const char *fileName); // Load OBJ mesh data
# if defined(SUPPORT_FILEFORMAT_MTL)
static Material LoadMTL ( const char * fileName ) ; / / Load MTL material data
# endif
# if defined(SUPPORT_FILEFORMAT_GLTF)
static Mesh LoadIQM ( const char * fileName ) ; / / Load IQM mesh data
# endif
# if defined(SUPPORT_FILEFORMAT_GLTF)
static Mesh LoadGLTF ( const char * fileName ) ; / / Load GLTF mesh data
# endif
/ / - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/ / Module Functions Definition
@ -646,45 +664,54 @@ void UnloadMesh(Mesh *mesh)
rlUnloadMesh ( mesh ) ;
}
/ / Export mesh as an OBJ file
void ExportMesh ( const char * fileName, Mesh mesh )
/ / Export mesh data to file
void ExportMesh ( n">Mesh mesh , const char * fileName )
{
FILE * objFile = fopen ( fileName , " wt " ) ;
fprintf ( objFile , " # raylib Mesh OBJ exporter v1.0 \n \n " ) ;
fprintf ( objFile , " # Mesh exported as triangle faces and not optimized. \n " ) ;
fprintf ( objFile , " # Vertex Count: %i \n " , mesh . vertexCount ) ;
fprintf ( objFile , " # Triangle Count: %i \n \n " , mesh . triangleCount ) ;
fprintf ( objFile , " # LICENSE: zlib/libpng \n " ) ;
fprintf ( objFile , " # Copyright (c) 2018 Ramon Santamaria (@raysan5) \n \n " ) ;
fprintf ( objFile , " g mesh \n " ) ;
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 3 )
{
fprintf ( objFile , " v %.2f %.2f %.2f \n " , mesh . vertices [ v ] , mesh . vertices [ v + 1 ] , mesh . vertices [ v + 2 ] ) ;
}
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 2 )
{
fprintf ( objFile , " vt %.2f %.2f \n " , mesh . texcoords [ v ] , mesh . texcoords [ v + 1 ] ) ;
}
bool success = false ;
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 3 )
if ( IsFileExtension ( fileName , " .obj " ) )
{
fprintf ( objFile , " vn %.2f %.2f %.2f \n " , mesh . normals [ v ] , mesh . normals [ v + 1 ] , mesh . normals [ v + 2 ] ) ;
}
for ( int i = 0 ; i < mesh . triangleCount ; i + = 3 )
{
fprintf ( objFile , " f %i/%i/%i %i/%i/%i %i/%i/%i \n " , i , i , i , i + 1 , i + 1 , i + 1 , i + 2 , i + 2 , i + 2 ) ;
FILE * objFile = fopen ( fileName , " wt " ) ;
fprintf ( objFile , " # raylib Mesh OBJ exporter v1.0 \n \n " ) ;
fprintf ( objFile , " # Mesh exported as triangle faces and not optimized. \n " ) ;
fprintf ( objFile , " # Vertex Count: %i \n " , mesh . vertexCount ) ;
fprintf ( objFile , " # Triangle Count: %i \n \n " , mesh . triangleCount ) ;
fprintf ( objFile , " # LICENSE: zlib/libpng \n " ) ;
fprintf ( objFile , " # Copyright (c) 2018 Ramon Santamaria (@raysan5) \n \n " ) ;
fprintf ( objFile , " g mesh \n " ) ;
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 3 )
{
fprintf ( objFile , " v %.2f %.2f %.2f \n " , mesh . vertices [ v ] , mesh . vertices [ v + 1 ] , mesh . vertices [ v + 2 ] ) ;
}
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 2 )
{
fprintf ( objFile , " vt %.2f %.2f \n " , mesh . texcoords [ v ] , mesh . texcoords [ v + 1 ] ) ;
}
for ( int i = 0 , v = 0 ; i < mesh . vertexCount ; i + + , v + = 3 )
{
fprintf ( objFile , " vn %.2f %.2f %.2f \n " , mesh . normals [ v ] , mesh . normals [ v + 1 ] , mesh . normals [ v + 2 ] ) ;
}
for ( int i = 0 ; i < mesh . triangleCount ; i + = 3 )
{
fprintf ( objFile , " f %i/%i/%i %i/%i/%i %i/%i/%i \n " , i , i , i , i + 1 , i + 1 , i + 1 , i + 2 , i + 2 , i + 2 ) ;
}
fprintf ( objFile , " \n " ) ;
fclose ( objFile ) ;
success = true ;
}
fprintf ( objFile , " \n " ) ;
fclose ( objFile ) ;
else if ( IsFileExtension ( fileName , " .raw " ) ) { } / / TODO : Support additional file formats to export mesh vertex data
TraceLog ( LOG_INFO , " Mesh saved: %s " , fileName ) ;
if ( success ) TraceLog ( LOG_INFO , " Mesh exported successfully: %s " , fileName ) ;
else TraceLog ( LOG_WARNING , " Mesh could not be exported. " ) ;
}
# if defined(SUPPORT_MESH_GENERATION)
@ -699,7 +726,7 @@ Mesh GenMeshPlane(float width, float length, int resX, int resZ)
resZ + + ;
/ / Vertices definition
int vertexCount = resX * resZ o">* 6 ; / / 6 vertex by quad
int vertexCount = resX * resZ p">; / / vertices get reused for the faces
Vector3 * vertices = ( Vector3 * ) malloc ( vertexCount * sizeof ( Vector3 ) ) ;
for ( int z = 0 ; z < resZ ; z + + )
@ -718,7 +745,7 @@ Mesh GenMeshPlane(float width, float length, int resX, int resZ)
Vector3 * normals = ( Vector3 * ) malloc ( vertexCount * sizeof ( Vector3 ) ) ;
for ( int n = 0 ; n < vertexCount ; n + + ) normals [ n ] = ( Vector3 ) { 0.0f , 1.0f , 0.0f } ; / / Vector3 . up ;
/ / TexCoords definition
/ / TexCoords definition
Vector2 * texcoords = ( Vector2 * ) malloc ( vertexCount * sizeof ( Vector2 ) ) ;
for ( int v = 0 ; v < resZ ; v + + )
{
@ -741,7 +768,7 @@ Mesh GenMeshPlane(float width, float length, int resX, int resZ)
triangles [ t + + ] = i + 1 ;
triangles [ t + + ] = i ;
triangles [ t + + ] = i + resX ;
triangles [ t + + ] = i + resX ;
triangles [ t + + ] = i + resX + 1 ;
triangles [ t + + ] = i + 1 ;
}
@ -2206,9 +2233,8 @@ void MeshBinormals(Mesh *mesh)
Vector3 tangent = { mesh - > tangents [ i * 4 + 0 ] , mesh - > tangents [ i * 4 + 1 ] , mesh - > tangents [ i * 4 + 2 ] } ;
float tangentW = mesh - > tangents [ i * 4 + 3 ] ;
/ / TODO : Register computed binormal in mesh - > binormal ?
/ / Vector3 binormal = Vector3Multiply ( Vector3CrossProduct ( normal , tangent ) , tangentW ) ;
/ / Vector3 binormal = Vector3Multiply ( Vector3CrossProduct ( normal , tangent ) , tangentW ) ;
}
}
@ -2222,7 +2248,7 @@ static Mesh LoadOBJ(const char *fileName)
{
Mesh mesh = { 0 } ;
char dataType ;
char dataType = 0 ;
char comments [ 200 ] ;
int vertexCount = 0 ;
@ -2245,7 +2271,7 @@ static Mesh LoadOBJ(const char *fileName)
/ / NOTE : faces MUST be defined as TRIANGLES ( 3 vertex per face )
while ( ! feof ( objFile ) )
{
dataType = sa"> ' \0 ' ;
dataType = mi">0 ;
fscanf ( objFile , " %c " , & dataType ) ;
switch ( dataType )
@ -2631,3 +2657,59 @@ static Material LoadMTL(const char *fileName)
return material ;
}
# endif
# if defined(SUPPORT_FILEFORMAT_GLTF)
/ / Load IQM mesh data
static Mesh LoadIQM ( const char * fileName )
{
Mesh mesh = { 0 } ;
/ / TODO : Load IQM file
return mesh ;
}
# endif
# if defined(SUPPORT_FILEFORMAT_GLTF)
/ / Load GLTF mesh data
static Mesh LoadGLTF ( const char * fileName )
{
Mesh mesh = { 0 } ;
/ / GLTF file loading
FILE * gltfFile = fopen ( fileName , " rb " ) ;
if ( gltfFile = = NULL )
{
TraceLog ( LOG_WARNING , " [%s] GLTF file could not be opened " , fileName ) ;
return mesh ;
}
fseek ( gltfFile , 0 , SEEK_END ) ;
int size = ftell ( gltfFile ) ;
fseek ( gltfFile , 0 , SEEK_SET ) ;
void * buffer = malloc ( size ) ;
fread ( buffer , size , 1 , gltfFile ) ;
fclose ( gltfFile ) ;
/ / GLTF data loading
cgltf_options options = { 0 } ;
cgltf_data data ;
cgltf_result result = cgltf_parse ( & options , buffer , size , & data ) ;
if ( result = = cgltf_result_success )
{
printf ( " Type: %u \n " , data . file_type ) ;
printf ( " Version: %d \n " , data . version ) ;
printf ( " Meshes: %lu \n " , data . meshes_count ) ;
}
else TraceLog ( LOG_WARNING , " [%s] GLTF data could not be loaded " , fileName ) ;
free ( buffer ) ;
cgltf_free ( & data ) ;
return mesh ;
}
# endif
Murray Campbell
6 years ago
GitHub