rtx: add include support for materials

use it like this:
```materials.mat
{
	"include" "other.mat"
	"include" "another.mat"
	// ...
}

// continue with regular material definitions
```

```other.mat
{
	// can also nest includes (up to 4)
	"include" "yetanother.mat"
}

// continue with definitions as usual

{
	// may also have includes later too
	"include" "whatever.mat"
}

// ...
```

etc

fixes #312
This commit is contained in:
Ivan Avdeev 2021-12-23 22:12:36 -08:00
parent 2ae510ee7f
commit c39e0c6031
1 changed files with 30 additions and 13 deletions

View File

@ -5,6 +5,8 @@
#include <stdio.h>
#define MAX_INCLUDE_DEPTH 4
static const xvk_material_t k_default_material = {
.tex_base_color = -1,
.tex_metalness = 0,
@ -28,12 +30,25 @@ static int loadTexture( const char *filename, qboolean force_reload ) {
return tex_id ? tex_id : -1;
}
static void loadMaterialsFromFile( const char *filename ) {
static void makePath(char *out, size_t out_size, const char *value, const char *path_begin, const char *path_end) {
if (value[0] == '/') {
// Path relative to valve/pbr dir
Q_snprintf(out, out_size, "pbr%s", value);
} else {
// Path relative to current material.mat file
Q_snprintf(out, out_size, "%.*s%s", (int)(path_end - path_begin), path_begin, value);
}
}
#define MAKE_PATH(out, value) \
makePath(out, sizeof(out), value, path_begin, path_end)
static void loadMaterialsFromFile( const char *filename, int depth ) {
fs_offset_t size;
const char *const path_begin = filename;
const char *path_end = Q_strrchr(filename, '/');
byte *data = gEngine.COM_LoadFile( filename, 0, false );
char *pos = data;
char *pos = (char*)data;
xvk_material_t current_material = {
.base_color = -1,
.metalness = tglob.blackTexture,
@ -99,6 +114,14 @@ static void loadMaterialsFromFile( const char *filename ) {
create = true;
} else if (Q_stricmp(key, "force_reload") == 0) {
force_reload = Q_atoi(value) != 0;
} else if (Q_stricmp(key, "include") == 0) {
if (depth > 0) {
char include_path[256];
MAKE_PATH(include_path, value);
loadMaterialsFromFile( include_path, depth - 1);
} else {
gEngine.Con_Printf(S_ERROR "material: max include depth %d reached when including '%s' from '%s'\n", MAX_INCLUDE_DEPTH, value, filename);
}
} else {
char texture_path[256];
int *tex_id_dest = NULL;
@ -121,13 +144,7 @@ static void loadMaterialsFromFile( const char *filename ) {
continue;
}
if (value[0] == '/') {
// Path relative to valve/pbr dir
Q_snprintf(texture_path, sizeof(texture_path), "pbr%s", value);
} else {
// Path relative to current material.mat file
Q_snprintf(texture_path, sizeof(texture_path), "%.*s%s", (int)(path_end - path_begin), path_begin, value);
}
MAKE_PATH(texture_path, value);
if (tex_id_dest) {
const int tex_id = loadTexture(texture_path, force_reload);
@ -152,7 +169,7 @@ static void loadMaterialsFromFileF( const char *fmt, ... ) {
vsnprintf( buffer, sizeof buffer, fmt, argptr );
va_end( argptr );
loadMaterialsFromFile( buffer );
loadMaterialsFromFile( buffer, MAX_INCLUDE_DEPTH );
}
void XVK_ReloadMaterials( void ) {
@ -165,9 +182,9 @@ void XVK_ReloadMaterials( void ) {
mat->tex_base_color = i;
}
loadMaterialsFromFile( "pbr/materials.mat" );
loadMaterialsFromFile( "pbr/models/materials.mat" );
loadMaterialsFromFile( "pbr/sprites/materials.mat" );
loadMaterialsFromFile( "pbr/materials.mat", MAX_INCLUDE_DEPTH );
loadMaterialsFromFile( "pbr/models/materials.mat", MAX_INCLUDE_DEPTH );
loadMaterialsFromFile( "pbr/sprites/materials.mat", MAX_INCLUDE_DEPTH );
{
const char *wad = g_map_entities.wadlist;