clean up 3d model creation

scripts/debug.js

@@ -209,6 +209,8 @@ debug.api.print_doc =  function(name)
   return mdoc;
 }
 
+debug.frozen = false;
+
 return {
   debug,
   Gizmos,

scripts/render.js

@@ -44,6 +44,8 @@ function set_model(t)
     render.setunim4(0, cur.shader.vs.unimap.model.slot, t);
 }
 
+render.set_model = set_model;
+
 var shaderlang = {
  macos: "metal_macos",
  windows: "hlsl5",

scripts/repl.js

@@ -0,0 +1,15 @@
+var repl = {};
+
+var file = "repl.jj";
+var last = 0;
+
+repl.hotreload = function() {
+  if (io.mod(file) > last) {
+    say("REPL:::");
+    last = io.mod(file);
+    var script = io.slurp(file);
+    eval(script);
+  }
+}
+
+return {repl:repl};

source/engine/anim.h

@@ -25,12 +25,11 @@ struct anim_channel {
   sampler *sampler;
 };
 
-struct animation {
+typedef struct animation {
-  char *name;
   double time;
   struct anim_channel *channels;
   sampler *samplers;
-};
+} animation;
 
 void animation_run(struct animation *anim, float now);
 HMM_Vec4 sample_sampler(sampler *sampler, float time);

source/engine/jsffi.c

@@ -48,8 +48,6 @@ static JSValue globalThis;
 static JSClassID js_ptr_id;
 static JSClassDef js_ptr_class = { "POINTER" };
 
-static JSValue JSUNDEF;
-
 JSValue str2js(const char *c, ...) {
   if (!c) return JS_UNDEFINED;
   char *result = NULL;
@@ -95,6 +93,11 @@ void cpConstraint_free(cpConstraint *c)
   cpConstraintFree(c);
 }
 
+void skin_free(skin *sk) {
+  arrfree(sk->invbind);
+  free(sk);
+}
+
 void jsfreestr(const char *s) { JS_FreeCString(js, s); }
 QJSCLASS(gameobject)
 QJSCLASS(transform)
@@ -109,6 +112,7 @@ QJSCLASS(datastream)
 QJSCLASS(cpShape)
 QJSCLASS(cpConstraint)
 QJSCLASS(timer)
+QJSCLASS(skin);
 
 static JSValue js_circle2d;
 static JSValue js_poly2d;
@@ -205,6 +209,7 @@ uint64_t js2uint64(JSValue v)
 JSValue angle2js(double g) {
   return number2js(g*HMM_RadToTurn);
 }
+
 double js2angle(JSValue v) {
   double n = js2number(v);
   return n * HMM_TurnToRad;
@@ -532,6 +537,7 @@ int js_print_exception(JSValue v)
     JS_FreeCString(js, msg);
     JS_FreeCString(js, stack);
     JS_FreeValue(js,ex);
+    
     return 1;
 #endif
   return 0;
@@ -864,6 +870,45 @@ sg_shader js2shader(JSValue v)
   return sh;
 }
 
+#define MAT_POS 0
+#define MAT_UV 1
+#define MAT_NORM 2
+#define MAT_BONE 3
+#define MAT_WEIGHT 4
+#define MAT_COLOR 5
+#define MAT_TAN 6
+#define MAT_ANGLE 7
+#define MAT_WH 8
+#define MAT_ST 9
+#define MAT_PPOS 10
+#define MAT_SCALE 11
+
+static int mat2type(int mat)
+{
+  switch(mat) {
+    case MAT_POS:
+    case MAT_NORM:
+      return SG_VERTEXFORMAT_FLOAT3;
+    case MAT_PPOS:
+    case MAT_WH:
+    case MAT_ST:
+      return SG_VERTEXFORMAT_FLOAT2;
+    case MAT_UV:
+    case MAT_TAN:
+      return SG_VERTEXFORMAT_USHORT2N;
+      return SG_VERTEXFORMAT_UINT10_N2;
+    case MAT_BONE:
+      return SG_VERTEXFORMAT_UBYTE4;
+    case MAT_WEIGHT:
+    case MAT_COLOR:
+      return SG_VERTEXFORMAT_UBYTE4N;
+    case MAT_ANGLE:
+    case MAT_SCALE:
+      return SG_VERTEXFORMAT_FLOAT;
+  };
+  return 0;
+}
+
 sg_vertex_layout_state js2layout(JSValue v)
 {
   sg_vertex_layout_state st = {0};
@@ -1892,6 +1937,7 @@ JSC_CCALL(transform_rotate,
   transform *t = js2transform(self);
   HMM_Quat rot = HMM_QFromAxisAngle_LH(axis, js2angle(argv[1]));
   t->rotation = HMM_MulQ(t->rotation,rot);
+  printf("rotation is now %g,%g,%g,%g\n", t->rotation.e[0], t->rotation.e[1], t->rotation.e[2], t->rotation.e[3]);
   t->dirty = true;
 )
 
@@ -2890,42 +2936,34 @@ JSC_CCALL(os_make_transform, return transform2js(make_transform()))
 
 JSC_SCALL(os_system, return number2js(system(str)); )
 
-#define PRIMCHECK(VAR, JS, VAL) \
+JSC_SCALL(os_gltf_buffer,
-if (VAR->VAL.id) js_setpropstr(JS, #VAL, sg_buffer2js(&VAR->VAL)); \
+  int buffer_idx = js2number(argv[1]);
+  int type = js2number(argv[2]);
+  cgltf_options options = {0};
+  cgltf_data *data = NULL;
+  cgltf_result result = cgltf_parse_file(&options, str, &data);
+  result = cgltf_load_buffers(&options, data, str);
 
-JSValue primitive2js(primitive *p)
+  sg_buffer *b = malloc(sizeof(*b));
-{
+  *b = accessor2buffer(&data->accessors[buffer_idx], type);
-  JSValue v = JS_NewObject(js);
+  cgltf_free(data);
-  PRIMCHECK(p, v, pos)
-  PRIMCHECK(p,v,norm)
-  PRIMCHECK(p,v,uv)
-  PRIMCHECK(p,v,bone)
-  PRIMCHECK(p,v,weight)
-  PRIMCHECK(p,v,color)
-  PRIMCHECK(p,v,index)
-  js_setpropstr(v, "count", number2js(p->idx_count));
 
-  return v;
+  ret = sg_buffer2js(b);
-}
+)
 
-JSValue material2js(material *m)
+JSC_SCALL(os_gltf_skin,
-{
+  cgltf_options options = {0};
-  JSValue v = JS_NewObject(js);
+  cgltf_data *data = NULL;
-  if (m->diffuse)
+  cgltf_parse_file(&options,str,&data);
-    js_setpropstr(v, "diffuse", texture2js(m->diffuse));
+  cgltf_load_buffers(&options,data,str);
 
-  return v;
+  if (data->skins_count <= 0) {
-}
+    ret = (JS_UNDEFINED);
+    goto CLEANUP;
+  }
 
-JSC_SCALL(os_make_model,
+  CLEANUP:
-  model *m = model_make(str);
+  cgltf_free(data);
-  if (arrlen(m->meshes) != 1) return JSUNDEF;
-  mesh *me = m->meshes+0;
-  
-  JSValue v = JS_NewObject(js);
-  js_setpropstr(v, "mesh", primitive2js(me->primitives+0));
-  js_setpropstr(v, "material", material2js(me->primitives[0].mat));
-  return v;
 )
 
 JSC_CCALL(os_make_buffer,
@@ -3088,6 +3126,11 @@ JSC_SCALL(os_make_video,
   js_setpropstr(ret, "texture", texture2js(t));
 )
 
+JSC_CCALL(os_skin_calculate,
+  skin *sk = js2skin(argv[0]);
+  skin_calculate(sk);
+)
+
 static const JSCFunctionListEntry js_os_funcs[] = {
   MIST_FUNC_DEF(os, cwd, 0),
   MIST_FUNC_DEF(os, env, 1),
@@ -3105,7 +3148,6 @@ static const JSCFunctionListEntry js_os_funcs[] = {
   MIST_FUNC_DEF(os, make_texture, 1),
   MIST_FUNC_DEF(os, make_tex_data, 3),
   MIST_FUNC_DEF(os, make_font, 2),
-  MIST_FUNC_DEF(os, make_model, 1),
   MIST_FUNC_DEF(os, make_transform, 0),
   MIST_FUNC_DEF(os, make_buffer, 1),
   MIST_FUNC_DEF(os, make_line_prim, 4),
@@ -3133,7 +3175,10 @@ static const JSCFunctionListEntry js_os_funcs[] = {
   MIST_FUNC_DEF(os, check_gc, 0),
   MIST_FUNC_DEF(os, check_cycles, 0),
   MIST_FUNC_DEF(os, memstate, 0),
-  MIST_FUNC_DEF(os, value_id, 1)
+  MIST_FUNC_DEF(os, value_id, 1),
+  MIST_FUNC_DEF(os, gltf_buffer, 3),
+  MIST_FUNC_DEF(os, gltf_skin, 1),
+  MIST_FUNC_DEF(os, skin_calculate, 1),
 };
 
 #include "steam.h"
@@ -3147,7 +3192,6 @@ void ffi_load() {
   cycles = tmpfile();
   quickjs_set_cycleout(cycles);
   
-  JSUNDEF = JS_UNDEFINED;
   globalThis = JS_GetGlobalObject(js);
   
   QJSCLASSPREP(ptr);

source/engine/jsffi.h

@@ -23,7 +23,7 @@ extern JSValue cpShape2js(cpShape *s);
 
 #define JSC_SCALL(NAME, FN) JSC_CCALL(NAME, \
   const char *str = js2str(argv[0]); \
-  FN ; \
+  {FN;} ; \
   JS_FreeCString(js,str); \
 ) \
 

source/engine/model.c

@@ -25,47 +25,10 @@
 
 #include "sokol/sokol_gfx.h"
 
-static void processnode();
+#include "jsffi.h"
-static void processmesh();
-static void processtexture();
-
-static cgltf_data *cdata;
-static char *cpath;
-
-cgltf_attribute *get_attr_type(cgltf_primitive *p, cgltf_attribute_type t)
-{
-  for (int i = 0; i < p->attributes_count; i++) {
-    if (p->attributes[i].type == t)
-      return &p->attributes[i];
-  }
-
-  return NULL;
-}
 
 unsigned short pack_short_tex(float c) { return c * USHRT_MAX; }
 
-
-void mesh_add_material(primitive *prim, cgltf_material *mat)
-{
-  if (!mat) return;
-  
-  prim->mat = calloc(sizeof(*prim->mat), 1);
-  material *pmat = prim->mat;
-  
-  if (mat->has_pbr_metallic_roughness && mat->pbr_metallic_roughness.base_color_texture.texture) {
-    cgltf_image *img = mat->pbr_metallic_roughness.base_color_texture.texture->image;
-    if (img->buffer_view) {
-      cgltf_buffer_view *buf = img->buffer_view;
-      pmat->diffuse = texture_fromdata(buf->buffer->data, buf->size);
-    } else {
-//      char *path = makepath(dirname(cpath), img->uri);
-//      pmat->diffuse = texture_from_file(path);
-//      free(path);
-     }
-   } else
-     pmat->diffuse = texture_from_file("icons/moon.gif"); 
-}
-
 sg_buffer texcoord_floats(float *f, int n)
 {
   unsigned short packed[n];
@@ -156,196 +119,57 @@ sg_buffer ubyte_buffer(float *f, int v)
   return sg_make_buffer(&(sg_buffer_desc){.data=SG_RANGE(b)});
 }
 
-sg_buffer joint_buf(float *f, int v)
+sg_buffer accessor2buffer(cgltf_accessor *a, int type)
 {
-  char joints[v];
+  int n = cgltf_accessor_unpack_floats(a, NULL, 0);
-  for (int i = 0; i < (v); i++)
+  float vs[n];
-    joints[i] = f[i];
+  cgltf_accessor_unpack_floats(a, vs, n);
 
-  return sg_make_buffer(&(sg_buffer_desc){ .data = SG_RANGE(joints)});
+  switch(type) {
-}
+    case cgltf_attribute_type_position:
-
+      return sg_make_buffer(&(sg_buffer_desc){
-sg_buffer weight_buf(float *f, int v)
-{
-  unsigned char weights[v];
-  for (int i = 0; i < (v); i++)
-    weights[i] = f[i]*255;
-  
-  return sg_make_buffer(&(sg_buffer_desc){ .data = SG_RANGE(weights)});
-}
-
-HMM_Vec3 index_to_vert(uint32_t idx, float *f)
-{
-  return (HMM_Vec3){f[idx*3], f[idx*3+1], f[idx*3+2]};
-}
-
-void primitive_gen_indices(primitive *prim)
-{
-  if (prim->idx_count != 0) return;
-  
-  uint16_t *idxs = malloc(sizeof(*idxs)*prim->idx_count);
-  
-  for (int z = 0; z < prim->idx_count; z++)
-    idxs[z] = z;
-  
-  prim->index = sg_make_buffer(&(sg_buffer_desc){
-    .data.ptr = idxs,
-    .data.size = sizeof(uint16_t) * prim->idx_count,
-    .type = SG_BUFFERTYPE_INDEXBUFFER});
-    
-  free(idxs);
-}
-
-struct primitive mesh_add_primitive(cgltf_primitive *prim)
-{
-  primitive retp = (primitive){0};
-
-  uint16_t *idxs;
-  if (prim->indices) {
-    int n = cgltf_accessor_unpack_floats(prim->indices, NULL, 0);
-    float fidx[n];
-    cgltf_accessor_unpack_floats(prim->indices, fidx, n);
-    idxs = malloc(sizeof(*idxs)*n);
-    for (int i = 0; i < n; i++)
-      idxs[i] = fidx[i];
-
-    retp.index = sg_make_buffer(&(sg_buffer_desc){
-      .data.ptr = idxs,
-      .data.size = sizeof(*idxs) * n,
-      .type = SG_BUFFERTYPE_INDEXBUFFER,
-      .label = "mesh index buffer",
-    });
-
-    retp.idx_count = n;
-    free(idxs);
-  } else {
-    retp.idx_count = cgltf_accessor_unpack_floats(prim->attributes[0].data, NULL, 0);
-    primitive_gen_indices(&retp);
-  }
-  
-  printf("adding material\n");
-  mesh_add_material(&retp, prim->material);
-
-  for (int k = 0; k < prim->attributes_count; k++) {
-    cgltf_attribute attribute = prim->attributes[k];
-
-    int n = cgltf_accessor_unpack_floats(attribute.data, NULL, 0); /* floats per vertex x num elements. In other words, total floats pulled */
-    int comp = cgltf_num_components(attribute.data->type);
-    int verts = n/comp;
-    float vs[n];
-    cgltf_accessor_unpack_floats(attribute.data, vs, n);
-
-    switch (attribute.type) {
-      case cgltf_attribute_type_position:
-      retp.pos = sg_make_buffer(&(sg_buffer_desc){
         .data.ptr = vs,
-        .data.size = sizeof(float) * n,
+	.data.size = sizeof(float)*n
-        .label = "mesh vert buffer"
+      });
-        });
-      break;
-
     case cgltf_attribute_type_normal:
-      retp.norm = normal_floats(vs, n);
+      return normal_floats(vs,n);
-      break;
-
     case cgltf_attribute_type_tangent:
+      return normal_floats(vs,n); // TODO: MAKE A TANGENT READER
       break;
-
     case cgltf_attribute_type_color:
-      retp.color = ubyten_buffer(vs,n);
+      return ubyten_buffer(vs,n);
-      break;
-
     case cgltf_attribute_type_weights:
-      retp.weight = ubyten_buffer(vs, n);
+      return ubyten_buffer(vs,n);
-      break;
-
     case cgltf_attribute_type_joints:
-      retp.bone = ubyte_buffer(vs, n);
+      return ubyte_buffer(vs,n);
-      break;
-
     case cgltf_attribute_type_texcoord:
-      retp.uv = texcoord_floats(vs, n);
+      return texcoord_floats(vs,n);
-      break;
     case cgltf_attribute_type_invalid:
-      YughWarn("Invalid type.");
       break;
-      
+    case 100:
-    case cgltf_attribute_type_custom:
+      return index_buffer(vs,n);
-      break;
-      
-    case cgltf_attribute_type_max_enum:
-      break;
-    }
   }
 
-  if (!retp.bone.id) {
+  return sg_make_buffer(&(sg_buffer_desc) {
-    char joints[retp.idx_count*4];
+  .data.size = 4,
-    memset(joints, 0, retp.idx_count*4);
+  .usage = SG_USAGE_STREAM
-    retp.bone = sg_make_buffer(&(sg_buffer_desc){ .data = SG_RANGE(joints)});
+  });
-  }
-  
-  if (!retp.weight.id) {
-    char weights[retp.idx_count*4];
-    memset(weights,0,retp.idx_count*4);
-    retp.weight = sg_make_buffer(&(sg_buffer_desc){ .data = SG_RANGE(weights)});
-  }
-  
-  if (!retp.color.id) {
-    char colors[retp.idx_count*4];
-    memset(colors,0,retp.idx_count*4);
-    retp.color = sg_make_buffer(&(sg_buffer_desc) { .data = SG_RANGE(colors) });
-  }
-
-  if (!retp.norm.id) {
-    YughInfo("Making normals.");
-    cgltf_attribute *pa = get_attr_type(prim, cgltf_attribute_type_position);
-    int n = cgltf_accessor_unpack_floats(pa->data, NULL,0);
-    int comp = 3;
-    int verts = n/comp;
-    uint32_t face_norms[verts];
-    float ps[n];
-    cgltf_accessor_unpack_floats(pa->data,ps,n);
-
-    for (int i = 0; i < verts; i+=3) {
-      HMM_Vec3 a = index_to_vert(i,ps);
-      HMM_Vec3 b = index_to_vert(i+1,ps);
-      HMM_Vec3 c = index_to_vert(i+2,ps);
-      HMM_Vec3 norm = HMM_NormV3(HMM_Cross(HMM_SubV3(b,a), HMM_SubV3(c,a)));
-      uint32_t packed_norm = pack_int10_n2(norm.Elements);
-      face_norms[i] = face_norms[i+1] = face_norms[i+2] = packed_norm;
-     }
-     
-     retp.norm = sg_make_buffer(&(sg_buffer_desc){
-       .data.ptr = face_norms,
-       .data.size = sizeof(uint32_t) * verts});
-  }
-  
-  return retp;
-}
-
-
-
-void model_add_cgltf_mesh(mesh *m, cgltf_mesh *gltf_mesh)
-{
-  for (int i = 0; i < gltf_mesh->primitives_count; i++)
-    arrput(m->primitives, mesh_add_primitive(gltf_mesh->primitives+i));
 }
 
 void packFloats(float *src, float *dest, int srcLength) {
-    int i, j;
+  int i, j;
-    for (i = 0, j = 0; i < srcLength; i += 3, j += 4) {
+  for (i = 0, j = 0; i < srcLength; i += 3, j += 4) {
-        dest[j] = src[i];
+    dest[j] = src[i];
-        dest[j + 1] = src[i + 1];
+    dest[j + 1] = src[i + 1];
-        dest[j + 2] = src[i + 2];
+    dest[j + 2] = src[i + 2];
-        dest[j + 3] = 0.0f;
+    dest[j + 3] = 0.0f;
-    }
+  }
 }
 
-void model_add_cgltf_anim(model *model, cgltf_animation *anim)
+animation *gltf_anim(cgltf_animation *anim)
 {
-  YughInfo("FOUND ANIM, using %d channels and %d samplers", anim->channels_count, anim->samplers_count);
+  animation *ret = calloc(sizeof(*ret), 1);
-  
+  animation an = *ret;
-  struct animation an = (struct animation){0};
   arrsetlen(an.samplers, anim->samplers_count);
   
   for (int i = 0; i < anim->samplers_count; i++) {
@@ -378,7 +202,7 @@ void model_add_cgltf_anim(model *model, cgltf_animation *anim)
   for (int i = 0; i < anim->channels_count; i++) {
     cgltf_animation_channel ch = anim->channels[i];
     struct anim_channel ach = (struct anim_channel){0};
-    md5joint *md = model->nodes+(ch.target_node-cdata->nodes);
+    md5joint *md = NULL;
     switch(ch.target_path) {
       case cgltf_animation_path_type_translation:
         ach.target = &md->pos;
@@ -396,31 +220,28 @@ void model_add_cgltf_anim(model *model, cgltf_animation *anim)
     arrput(an.channels, ach);
   }
 
-  model->anim = an;
+  *ret = an;
-  model->anim.time = apptime();
 }
 
-void model_add_cgltf_skin(model *model, cgltf_skin *skin)
+skin *make_gltf_skin(cgltf_skin *skin)
 {
   int n = cgltf_accessor_unpack_floats(skin->inverse_bind_matrices, NULL, 0);
-  struct skin sk = (struct skin){0};
+  struct skin *sk = NULL;
-  arrsetlen(sk.invbind, n/16);
+  sk = calloc(sizeof(*sk),1);
-  cgltf_accessor_unpack_floats(skin->inverse_bind_matrices, sk.invbind, n);
+  arrsetlen(sk->invbind, n/16);
-  YughInfo("FOUND SKIN, of %d bones, and %d vert comps", skin->joints_count, n);
+  cgltf_accessor_unpack_floats(skin->inverse_bind_matrices, sk->invbind, n);
   
-  cgltf_node *root = skin->skeleton;
+  arrsetlen(sk->joints, skin->joints_count);
-  
-  arrsetlen(sk.joints, skin->joints_count);
-  sk.root = model->nodes+(skin->skeleton-cdata->nodes);
   
   for (int i = 0; i < 50; i++)
-    sk.binds[i] = MAT1;
+    sk->binds[i] = MAT1;
   
   for (int i = 0; i < skin->joints_count; i++) {
-    int offset = skin->joints[i]-cdata->nodes;
-    sk.joints[i] = model->nodes+offset;
-    md5joint *j = sk.joints[i];
     cgltf_node *n = skin->joints[i];
+    int idx = n-skin->skeleton;
+    int parent_idx = n->parent-skin->skeleton;
+    md5joint *j = sk->joints+idx;
+    j->parent = sk->joints+parent_idx;
     for (int i = 0; i < 3; i++) {
       j->pos.e[i] = n->translation[i];
       j->scale.e[i] = n->scale[i];
@@ -429,196 +250,17 @@ void model_add_cgltf_skin(model *model, cgltf_skin *skin)
       j->rot.e[i] = n->rotation[i];
   }
 
-  model->skin = sk;
+  return sk;
 }
 
-void model_process_node(model *model, cgltf_node *node)
+void skin_calculate(skin *sk)
 {
-  int n = node-cdata->nodes;
-  cgltf_node_transform_world(node, model->nodes[n].t.e);
-  model->nodes[n].parent = model->nodes+(node->parent-cdata->nodes);
-  
-  if (node->mesh) {
-    int meshn = node->mesh-cdata->meshes;
-    arrsetlen(model->meshes, meshn+1);
-    model->meshes[meshn].m = &model->nodes[n].t;
-    model_add_cgltf_mesh(model->meshes+meshn, node->mesh);
-  }
-}
-
-struct model *model_make(const char *path)
-{
-  YughInfo("Making the model from %s.", path);
-  cpath = path;
-  cgltf_options options = {0};
-  cgltf_data *data = NULL;
-  cgltf_result result = cgltf_parse_file(&options, path, &data);
-  struct model *model = NULL;
-
-  if (result) {
-    YughError("CGLTF could not parse file %s, err %d.", path, result);
-    goto CLEAN;
-  }
-
-  result = cgltf_load_buffers(&options, data, path);
-
-  if (result) {
-    YughError("CGLTF could not load buffers for file %s, err %d.", path, result);
-    goto CLEAN;
-  }
-  
-  cdata = data;
-
-  model = calloc(1, sizeof(*model));
-  
-  arrsetlen(model->nodes, data->nodes_count);
-  for (int i = 0; i < data->nodes_count; i++)
-    model_process_node(model, data->nodes+i);
-
-  for (int i = 0; i < data->animations_count; i++)
-    model_add_cgltf_anim(model, data->animations+i);
-    
-  for (int i = 0; i < data->skins_count; i++)
-    model_add_cgltf_skin(model, data->skins+i);
-    
-  CLEAN:
-  cgltf_free(data);
-  return model;
-}
-
-void model_free(model *m)
-{
-
-}
-
-sg_bindings primitive_bind(primitive *p)
-{
-  sg_bindings b = {0};
-  b.vertex_buffers[MAT_POS] = p->pos;
-  b.vertex_buffers[MAT_UV] = p->uv;
-  b.vertex_buffers[MAT_NORM] = p->norm;
-  b.vertex_buffers[MAT_BONE] = p->bone;
-  b.vertex_buffers[MAT_WEIGHT] = p->weight;
-  b.vertex_buffers[MAT_COLOR] = p->color;
-  b.index_buffer = p->index;
-  b.fs.images[0] = p->mat->diffuse->id;
-  b.fs.samplers[0] = tex_sampler;
-  return b;
-}
-
-void model_draw_go(model *model, transform *go)
-{
-  HMM_Mat4 gom = transform2mat(go);
-  
-  animation_run(&model->anim, apptime());
-
-  skin *sk = &model->skin;
   for (int i = 0; i < arrlen(sk->joints); i++) {
-    md5joint *md = sk->joints[i];
+    md5joint *md = sk->joints+i;
     HMM_Mat4 local = HMM_M4TRS(md->pos.xyz, md->rot, md->scale.xyz);
     if (md->parent)
       local = HMM_MulM4(md->parent->t, local);
     md->t = local;
     sk->binds[i] = HMM_MulM4(md->t, sk->invbind[i]);
   }
-  /*sg_apply_uniforms(SG_SHADERSTAGE_VS, SLOT_skinv, &(sg_range){
-    .ptr = sk->binds,
-    .size = sizeof(*sk->binds)*50
-  });
-  */
-
-  for (int i = 0; i < arrlen(model->meshes); i++) {
-    HMM_Mat4 mod = *model->meshes[i].m;
-    mod = HMM_MulM4(mod, gom);
-    mesh msh = model->meshes[i];
-    for (int j = 0; j < arrlen(msh.primitives); j++) {
-      sg_bindings b = primitive_bind(msh.primitives+j);
-      sg_apply_bindings(&b);    
-      sg_draw(0, msh.primitives[j].idx_count, 1);    
-    }
-  }
-}
-
-int mat2type(int mat)
-{
-  switch(mat) {
-    case MAT_POS:
-    case MAT_NORM:
-      return SG_VERTEXFORMAT_FLOAT3;
-    case MAT_PPOS:
-    case MAT_WH:
-    case MAT_ST:
-      return SG_VERTEXFORMAT_FLOAT2;
-    case MAT_UV:
-    case MAT_TAN:
-      return SG_VERTEXFORMAT_USHORT2N;
-      return SG_VERTEXFORMAT_UINT10_N2;
-    case MAT_BONE:
-      return SG_VERTEXFORMAT_UBYTE4;
-    case MAT_WEIGHT:
-    case MAT_COLOR:
-      return SG_VERTEXFORMAT_UBYTE4N;
-    case MAT_ANGLE:
-    case MAT_SCALE:
-      return SG_VERTEXFORMAT_FLOAT;
-  };
-  return 0;
-}
-
-int mat2step(int mat)
-{
-  switch(mat) {
-    case MAT_POS:
-    case MAT_UV:
-    case MAT_TAN:
-    case MAT_NORM:
-    case MAT_BONE:
-    case MAT_WEIGHT:
-      return SG_VERTEXSTEP_PER_VERTEX;
-  };
-  return SG_VERTEXSTEP_PER_INSTANCE;
-}
-
-sg_buffer mat2buffer(int mat, primitive *p)
-{
-  switch(mat) {
-    case MAT_POS: return p->pos;
-    case MAT_NORM: return p->norm;
-    case MAT_UV: return p->uv;
-    case MAT_BONE: return p->bone;
-    case MAT_WEIGHT: return p->weight;
-    case MAT_COLOR: return p->color;
-  };
-  
-  return p->pos;
-}
-
-sg_bindings primitive_bindings(primitive *p, JSValue v)
-{
-  sg_bindings b = {0};
-  JSValue inputs = js_getpropstr(js_getpropstr(v, "vs"), "inputs");
-  for (int i = 0; i < js_arrlen(inputs); i++) {
-    JSValue attr = js_getpropidx(inputs, i);
-    int mat = js2number(js_getpropstr(attr, "mat"));  
-    int slot = js2number(js_getpropstr(attr, "slot"));
-    sg_buffer buf = mat2buffer(mat,p);
-    if (!buf.id) {
-      // ERROR
-    }
-    b.vertex_buffers[slot] = buf;
-  }
-  
-  b.index_buffer = p->index;
-  
-  return b;
-}
-
-void primitive_free(primitive *prim)
-{
-
-}
-
-void material_free(material *mat)
-{
-
 }

source/engine/model.h

@@ -7,57 +7,7 @@
 #include "gameobject.h"
 #include "anim.h"
 #include "texture.h"
-
+#include "cgltf.h"
-#define MAT_POS 0
-#define MAT_UV 1
-#define MAT_NORM 2
-#define MAT_BONE 3
-#define MAT_WEIGHT 4
-#define MAT_COLOR 5
-#define MAT_TAN 6
-#define MAT_ANGLE 7
-#define MAT_WH 8
-#define MAT_ST 9
-#define MAT_PPOS 10
-#define MAT_SCALE 11
-
-typedef struct material {
-  struct texture *diffuse;
-  struct texture *metalrough;
-  float metal;
-  float rough;
-  struct texture *normal;
-  float nrm;
-  struct texture *occlusion;
-  float occl;
-  struct texture *emissive;
-  HMM_Vec3 emis;
-} material;
-
-struct model;
-
-typedef struct primitive {
-  sg_buffer pos;
-  sg_buffer norm;
-  sg_buffer uv;
-  sg_buffer bone;
-  sg_buffer weight;
-  sg_buffer color;
-  sg_buffer index;
-  material *mat;
-  uint32_t idx_count;
-} primitive;
-
-/* A single mesh */
-typedef struct mesh {
-  primitive *primitives;
-  HMM_Mat4 *m;
-} mesh;
-
-typedef struct joint {
-  int me;
-  struct joint *children;
-} joint_t;
 
 typedef struct md5joint {
   struct md5joint *parent;
@@ -68,29 +18,14 @@ typedef struct md5joint {
 } md5joint;
 
 typedef struct skin {
-  md5joint **joints;
+  md5joint *joints;
   HMM_Mat4 *invbind;
   HMM_Mat4 binds[50]; /* binds = joint * invbind */
-  md5joint *root;
 } skin;
 
-/* A collection of meshes which create a full figure */
+sg_buffer accessor2buffer(cgltf_accessor *a, int type);
-typedef struct model {
+skin *make_gltf_skin(cgltf_skin *skin);
-  struct mesh *meshes;
+void skin_calculate(skin *sk);
-  md5joint *nodes;
-  material *mats;
-  skin skin;
-  struct animation anim;
-} model;
-
-/* Make a Model struct */
-struct model *model_make(const char *path);
-void model_free(model *m);
-
-void model_draw_go(model *m, transform *go);
-sg_bindings primitive_bindings(primitive *p, JSValue pipe);
-void primitive_gen_indices(primitive *prim);
-int mat2type(int mat);
 
 sg_buffer float_buffer(float *f, int v);
 sg_buffer index_buffer(float *f, int verts);
@@ -101,9 +36,5 @@ sg_buffer ubyten_buffer(float *f, int v);
 sg_buffer ubyte_buffer(float *f, int v);
 sg_buffer joint_buf(float *f, int v);
 sg_buffer weight_buf(float *f, int v);
-void primitive_free(primitive *prim);
-
-material *material_make();
-void material_free(material *mat);
 
 #endif