begin cglm bind refactor

10 files changed, 744 insertions, 283 deletions

diff --git a/src/glm/CMakeLists.txt b/src/glm/CMakeLists.txt
index 3f0dada..3c5fb32 100644
--- a/src/glm/CMakeLists.txt
+++ b/src/glm/CMakeLists.txt
@@ -1,9 +1,7 @@
 project(honey_engine)
 
 target_sources(honey PUBLIC
-	${CMAKE_CURRENT_LIST_DIR}/glm.c
+	${CMAKE_CURRENT_LIST_DIR}/setup.c
 	${CMAKE_CURRENT_LIST_DIR}/vec3.c
-	${CMAKE_CURRENT_LIST_DIR}/mat4.c
-	${CMAKE_CURRENT_LIST_DIR}/transform.c
-	${CMAKE_CURRENT_LIST_DIR}/camera.c
+	${CMAKE_CURRENT_LIST_DIR}/affine3d.c
 )
diff --git a/src/glm/affine3d.c b/src/glm/affine3d.c
new file mode 100644
index 0000000..c392d03
--- /dev/null
+++ b/src/glm/affine3d.c
@@ -0,0 +1,207 @@
+#include <lua.h>
+#include <lauxlib.h>
+#include <cglm/cglm.h>
+#include "glm.h"
+
+
+int glm_uniscaled_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	bool bind_result = glm_uniscaled(*m);
+	lua_pushboolean(L, bind_result);
+	return 1;
+}
+
+
+int glm_decompose_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec4 *t = luaL_checkudata(L, 2, glm_vec4_tname);
+	mat4 *r = luaL_checkudata(L, 3, glm_mat4_tname);
+	vec3 *s = luaL_checkudata(L, 4, glm_vec3_tname);
+	glm_decompose(*m, *t, *r, *s);
+	return 0;
+}
+
+
+int glm_decompose_rs_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	mat4 *r = luaL_checkudata(L, 2, glm_mat4_tname);
+	vec3 *s = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_decompose_rs(*m, *r, *s);
+	return 0;
+}
+
+
+int glm_decompose_scalev_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *s = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_decompose_scalev(*m, *s);
+	return 0;
+}
+
+
+int glm_rotate_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float angle = luaL_checknumber(L, 2);
+	vec3 *axis = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_rotate(*m, angle, *axis);
+	return 0;
+}
+
+
+int glm_rotate_at_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *pivot = luaL_checkudata(L, 2, glm_vec3_tname);
+	float angle = luaL_checknumber(L, 3);
+	vec3 *axis = luaL_checkudata(L, 4, glm_vec3_tname);
+	glm_rotate_at(*m, *pivot, angle, *axis);
+	return 0;
+}
+
+
+int glm_rotate_atm_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *pivot = luaL_checkudata(L, 2, glm_vec3_tname);
+	float angle = luaL_checknumber(L, 3);
+	vec3 *axis = luaL_checkudata(L, 4, glm_vec3_tname);
+	glm_rotate_atm(*m, *pivot, angle, *axis);
+	return 0;
+}
+
+
+int glm_rotate_make_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float angle = luaL_checknumber(L, 2);
+	vec3 *axis = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_rotate_make(*m, angle, *axis);
+	return 0;
+}
+
+
+int glm_rotate_x_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float angle = luaL_checknumber(L, 2);
+	mat4 *dest = luaL_checkudata(L, 3, glm_mat4_tname);
+	glm_rotate_x(*m, angle, *dest);
+	return 0;
+}
+
+
+int glm_rotate_y_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float angle = luaL_checknumber(L, 2);
+	mat4 *dest = luaL_checkudata(L, 3, glm_mat4_tname);
+	glm_rotate_y(*m, angle, *dest);
+	return 0;
+}
+
+
+int glm_rotate_z_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float angle = luaL_checknumber(L, 2);
+	mat4 *dest = luaL_checkudata(L, 3, glm_mat4_tname);
+	glm_rotate_z(*m, angle, *dest);
+	return 0;
+}
+
+
+int glm_scale_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_scale(*m, *v);
+	return 0;
+}
+
+
+int glm_scale_make_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_scale_make(*m, *v);
+	return 0;
+}
+
+
+int glm_scale_to_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	mat4 *dest = luaL_checkudata(L, 3, glm_mat4_tname);
+	glm_scale_to(*m, *v, *dest);
+	return 0;
+}
+
+
+int glm_scale_uni_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float s = luaL_checknumber(L, 2);
+	glm_scale_uni(*m, s);
+	return 0;
+}
+
+
+int glm_translate_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_translate(*m, *v);
+	return 0;
+}
+
+
+int glm_translate_make_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_translate_make(*m, *v);
+	return 0;
+}
+
+
+int glm_translate_to_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	mat4 *dest = luaL_checkudata(L, 3, glm_mat4_tname);
+	glm_translate_to(*m, *v, *dest);
+	return 0;
+}
+
+
+int glm_translate_x_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float x = luaL_checknumber(L, 2);
+	glm_translate_x(*m, x);
+	return 0;
+}
+
+
+int glm_translate_y_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float y = luaL_checknumber(L, 2);
+	glm_translate_y(*m, y);
+	return 0;
+}
+
+
+int glm_translate_z_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	float z = luaL_checknumber(L, 2);
+	glm_translate_z(*m, z);
+	return 0;
+}
diff --git a/src/glm/camera.c b/src/glm/camera.c
deleted file mode 100644
index 11d309d..0000000
--- a/src/glm/camera.c
+++ /dev/null
@@ -1,45 +0,0 @@
-#include <lua.h>
-#include <honeysuckle.h>
-#include <cglm/cglm.h>
-#include "util/util.h"
-#include "glm.h"
-
-
-int perspective(lua_State *L);
-int look(lua_State *L);
-
-
-void setup_camera(lua_State *L, int glm_tbl)
-{
-	int tbl = hs_create_table(L,
-		hs_str_cfunc("perspective", perspective),
-		hs_str_cfunc("look", look),
-	);
-
-	append_table(L, glm_tbl, tbl);
-	lua_pop(L, 1);
-}
-
-
-int perspective(lua_State *L)
-{
-	lua_Number fov, aspect, near, far;
-	void *dest_ptr;
-	hs_parse_args(L, hs_num(fov), hs_num(aspect), hs_num(near), hs_num(far), hs_user(dest_ptr));
-	mat4 *dest = dest_ptr;
-
-	glm_perspective(fov, aspect, near, far, *dest);
-	return 0;
-}
-
-
-int look(lua_State *L)
-{
-	float *eye = luaL_checkudata(L, 1, vec3_tname);
-	float *dir = luaL_checkudata(L, 2, vec3_tname);
-	float *up  = luaL_checkudata(L, 3, vec3_tname);
-	void *dest  = luaL_checkudata(L, 4, mat4_tname);
-
-	glm_look(eye, dir, up, dest);
-	return 0;
-}
diff --git a/src/glm/glm.c b/src/glm/glm.c
deleted file mode 100644
index ca6238a..0000000
--- a/src/glm/glm.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include <lua.h>
-#include <honeysuckle.h>
-#include "glm.h"
-
-
-void setup_glm(lua_State *L, int honey_index)
-{
-	lua_createtable(L, 0, 1);
-	int glm_tbl = lua_gettop(L);
-
-	setup_vec3(L, glm_tbl);
-	setup_mat4(L, glm_tbl);
-
-	setup_transform(L, glm_tbl);
-	setup_camera(L, glm_tbl);
-
-	lua_setfield(L, honey_index, "glm");
-}
-
-
-void array_get(lua_State *L, int max, float *array, int index)
-{
-	if (index < 0 || index >= max)
-		hs_throw_error(L, "index %d is out of range [0-%d]", index, max-1);
-	lua_pushnumber(L, array[index]);
-}
-
-
-void array_set(lua_State *L, int max, float *array, int index, float value)
-{
-	if (index < 0 || index >= max)
-		hs_throw_error(L, "index %d is out of range [0-%d]", index, max-1);
-	array[index] = value;
-}
diff --git a/src/glm/glm.h b/src/glm/glm.h
index 8bcf7cc..b331d37 100644
--- a/src/glm/glm.h
+++ b/src/glm/glm.h
@@ -4,17 +4,91 @@
 #include <lua.h>
 
 
-extern const char *vec3_tname;
-extern const char *mat4_tname;
+extern const char *glm_mat2_tname;
+extern const char *glm_mat3_tname;
+extern const char *glm_mat4_tname;
+extern const char *glm_vec2_tname;
+extern const char *glm_vec3_tname;
+extern const char *glm_vec4_tname;
 
 
-void setup_glm(lua_State *L, int honey_index);
-void setup_vec3(lua_State *L, int glm_tbl);
-void setup_mat4(lua_State *L, int glm_tbl);
-void setup_transform(lua_State *L, int glm_tbl);
-void setup_camera(lua_State *L, int glm_tbl);
+#define GLM_FUNCTIONS \
+	/* 3d affine transforms */ \
+	X("decompose", glm_decompose_bind) \
+	X("decompose_rs", glm_decompose_rs_bind) \
+	X("decompose_scalev", glm_decompose_scalev_bind) \
+	X("rotate", glm_rotate_bind) \
+	X("rotate_at", glm_rotate_at_bind) \
+	X("rotate_atm", glm_rotate_atm_bind) \
+	X("rotate_make", glm_rotate_make_bind) \
+	X("rotate_x", glm_rotate_x_bind) \
+	X("rotate_y", glm_rotate_y_bind) \
+	X("rotate_z", glm_rotate_z_bind) \
+	X("scale", glm_scale_bind) \
+	X("scale_make", glm_scale_make_bind) \
+	X("scale_to", glm_scale_to_bind) \
+	X("scale_uni", glm_scale_uni_bind) \
+	X("translate", glm_translate_bind) \
+	X("translate_make", glm_translate_make_bind) \
+	X("translate_to", glm_translate_to_bind) \
+	X("translate_x", glm_translate_x_bind) \
+	X("translate_y", glm_translate_y_bind) \
+	X("translate_z", glm_translate_z_bind) \
+	X("uniscaled", glm_uniscaled_bind) \
+\
+	/* vec3 */ \
+	X("vec3_create", glm_vec3_create) \
+	X("vec3_set", glm_vec3_set) \
+	X("vec3_get", glm_vec3_get) \
+	X("vec3", glm_vec3_bind) \
+	X("vec3_copy", glm_vec3_copy_bind) \
+	X("vec3_zero", glm_vec3_zero_bind) \
+	X("vec3_one", glm_vec3_one_bind) \
+	X("vec3_dot", glm_vec3_dot_bind) \
+	X("vec3_norm2", glm_vec3_norm2_bind) \
+	X("vec3_norm", glm_vec3_norm_bind) \
+	X("vec3_add", glm_vec3_add_bind) \
+	X("vec3_adds", glm_vec3_adds_bind) \
+	X("vec3_sub", glm_vec3_sub_bind) \
+	X("vec3_subs", glm_vec3_subs_bind) \
+	X("vec3_mul", glm_vec3_mul_bind) \
+	X("vec3_scale", glm_vec3_scale_bind) \
+	X("vec3_scale_as", glm_vec3_scale_as_bind) \
+	X("vec3_div", glm_vec3_div_bind) \
+	X("vec3_divs", glm_vec3_divs_bind) \
+	X("vec3_addadd", glm_vec3_addadd_bind) \
+	X("vec3_subadd", glm_vec3_subadd_bind) \
+	X("vec3_muladd", glm_vec3_muladd_bind) \
+	X("vec3_muladds", glm_vec3_muladds_bind) \
+	X("vec3_maxadd", glm_vec3_maxadd_bind) \
+	X("vec3_minadd", glm_vec3_minadd_bind) \
+	X("vec3_flipsign", glm_vec3_flipsign_bind) \
+	X("vec3_flipsign_to", glm_vec3_flipsign_to_bind) \
+	X("vec3_inv", glm_vec3_inv_bind) \
+	X("vec3_inv_to", glm_vec3_inv_to_bind) \
+	X("vec3_negate", glm_vec3_negate_bind) \
+	X("vec3_negate_to", glm_vec3_negate_to_bind) \
+	X("vec3_normalize", glm_vec3_normalize_bind) \
+	X("vec3_normalize_to", glm_vec3_normalize_to_bind) \
+	X("vec3_cross", glm_vec3_cross_bind) \
+	X("vec3_crossn", glm_vec3_crossn_bind) \
+	X("vec3_distance2", glm_vec3_distance2_bind) \
+	X("vec3_distance", glm_vec3_distance_bind) \
+	X("vec3_angle", glm_vec3_angle_bind) \
+	X("vec3_rotate", glm_vec3_rotate_bind) \
+	X("vec3_rotate_m4", glm_vec3_rotate_m4_bind) \
+	X("vec3_rotate_m3", glm_vec3_rotate_m3_bind) \
+	X("vec3_proj", glm_vec3_proj_bind) \
+	X("vec3_center", glm_vec3_center_bind) \
+	X("vec3_maxv", glm_vec3_maxv_bind) \
+	X("vec3_minv", glm_vec3_minv_bind) \
+	X("vec3_ortho", glm_vec3_ortho_bind) \
+	X("vec3_clamp", glm_vec3_clamp_bind) \
+	X("vec3_lerp", glm_vec3_lerp_bind) \
 
-void array_get(lua_State *L, int max, float *array, int index);
-void array_set(lua_State *L, int max, float *array, int index, float value);
+
+#define X(name, func) int func(lua_State *L);
+GLM_FUNCTIONS
+#undef X
 
 #endif
diff --git a/src/glm/mat4.c b/src/glm/mat4.c
deleted file mode 100644
index 5197891..0000000
--- a/src/glm/mat4.c
+++ /dev/null
@@ -1,64 +0,0 @@
-#include <lua.h>
-#include <honeysuckle.h>
-#include <cglm/cglm.h>
-#include "util/util.h"
-#include "glm.h"
-
-int mat4_create(lua_State *L);
-int mat4_set(lua_State *L);
-int mat4_get(lua_State *L);
-int mat4_identity(lua_State *L);
-
-const char *mat4_tname = "glm.mat4";
-
-void setup_mat4(lua_State *L, int glm_tbl)
-{
-	luaL_newmetatable(L, mat4_tname);
-	lua_pop(L, 1);
-
-	int tbl = hs_create_table(L,
-		hs_str_cfunc("mat4", mat4_create),
-		hs_str_cfunc("mat4_set", mat4_set),
-		hs_str_cfunc("mat4_get", mat4_get),
-		hs_str_cfunc("mat4_identity", mat4_identity),
-	);
-
-	append_table(L, glm_tbl, tbl);
-	lua_pop(L, 1);
-}
-
-
-int mat4_create(lua_State *L)
-{
-	lua_newuserdata(L, 16*sizeof(float));
-	luaL_getmetatable(L, mat4_tname);
-	lua_setmetatable(L, -2);
-	return 1;
-}
-
-
-int mat4_set(lua_State *L)
-{
-	float *matrix = luaL_checkudata(L, 1, mat4_tname);
-	int index = luaL_checkinteger(L, 2);
-	float value = luaL_checknumber(L, 3);
-	array_set(L, 16, matrix, index, value);
-	return 0;
-}
-
-
-int mat4_get(lua_State *L)
-{
-	float *matrix = luaL_checkudata(L, 1, mat4_tname);
-	int index = luaL_checkinteger(L, 2);
-	array_get(L, 16, matrix, index);
-	return 1;
-}
-
-
-int mat4_identity(lua_State *L)
-{
-	void *m = luaL_checkudata(L, 1, mat4_tname);
-	glm_mat4_identity(m);
-	return 0;
-}
diff --git a/src/glm/setup.c b/src/glm/setup.c
new file mode 100644
index 0000000..a36eeb1
--- /dev/null
+++ b/src/glm/setup.c
@@ -0,0 +1,41 @@
+#include <lua.h>
+#include <lauxlib.h>
+#include "util/util.h"
+#include "glm.h"
+
+
+const char *glm_mat2_tname = "glm.mat2";
+const char *glm_mat3_tname = "glm.mat3";
+const char *glm_mat4_tname = "glm.mat4";
+const char *glm_vec2_tname = "glm.vec2";
+const char *glm_vec3_tname = "glm.vec3";
+const char *glm_vec4_tname = "glm.vec4";
+
+
+void setup_glm(lua_State *L, int honey_index)
+{
+	struct honey_tbl_t glm[] = {
+		#define X(name, func) H_FUNC(name, func),
+		GLM_FUNCTIONS
+		#undef X
+		H_END,
+	};
+	create_table(L, glm);
+	lua_setfield(L, honey_index, "glm");
+}
+
+
+void array_get(lua_State *L, int max, float *array, int index)
+{
+	if (index < 0 || index >= max)
+		luaL_error(L, "index %d is out of range [0-%d]", index, max-1);
+	lua_pushnumber(L, array[index]);
+}
+
+
+void array_set(lua_State *L, int max, float *array, int index, float value)
+{
+	if (index < 0 || index >= max)
+		luaL_error(L, "index %d is out of range [0-%d]", index, max-1);
+	array[index] = value;
+}
diff --git a/src/glm/transform.c b/src/glm/transform.c
deleted file mode 100644
index daf75a5..0000000
--- a/src/glm/transform.c
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <lua.h>
-#include <honeysuckle.h>
-#include <cglm/cglm.h>
-#include "util/util.h"
-
-
-int translate(lua_State *L);
-int rotate(lua_State *L);
-int rotate_z(lua_State *L);
-
-
-void setup_transform(lua_State *L, int glm_tbl)
-{
-	int tbl = hs_create_table(L,
-		hs_str_cfunc("translate", translate),
-		hs_str_cfunc("rotate", rotate),
-		hs_str_cfunc("rotate_z", rotate_z),
-	);
-
-	append_table(L, glm_tbl, tbl);
-	lua_pop(L, 1);
-}
-
-
-int translate(lua_State *L)
-{
-	void *m_ptr, *v_ptr;
-	hs_parse_args(L, hs_user(m_ptr), hs_user(v_ptr));
-	mat4 *m = m_ptr;
-	vec3 *v = v_ptr;
-
-	glm_translate(*m, *v);
-	return 0;
-}
-
-
-int rotate(lua_State *L)
-{
-	void *m_ptr, *axis_ptr;
-	lua_Number angle;
-	hs_parse_args(L, hs_user(m_ptr), hs_num(angle), hs_user(axis_ptr));
-	mat4 *m = m_ptr;
-	vec3 *axis = axis_ptr;
-
-	glm_rotate(*m, angle, *axis);
-	return 0;
-}
-
-
-int rotate_z(lua_State *L)
-{
-	void *src_ptr, *dest_ptr;
-	lua_Number angle;
-	hs_parse_args(L, hs_user(src_ptr), hs_num(angle), hs_user(dest_ptr));
-	mat4 *source = src_ptr;
-	mat4 *dest = dest_ptr;
-
-	glm_rotate_z(*source, angle, *dest);
-	return 0;
-}
diff --git a/src/glm/vec3.c b/src/glm/vec3.c
index f278471..b85cf63 100644
--- a/src/glm/vec3.c
+++ b/src/glm/vec3.c
@@ -1,133 +1,463 @@
 #include <lua.h>
-#include <honeysuckle.h>
+#include <lauxlib.h>
 #include <cglm/cglm.h>
 #include "util/util.h"
 #include "glm.h"
 
-int vec3_create(lua_State *L);
-int vec3_set(lua_State *L);
-int vec3_get(lua_State *L);
 
-int vec3_normalize(lua_State *L);
+int glm_vec3_create(lua_State *L)
+{
+	lua_newuserdata(L, sizeof(vec3));
+	luaL_getmetatable(L, glm_vec3_tname);
+	lua_setmetatable(L, -2);
+	return 1;
+}
+
+
+int glm_vec3_set(lua_State *L)
+{
+	vec3 *vec = luaL_checkudata(L, 1, glm_vec3_tname);
+	int index = luaL_checkinteger(L, 2);
+	double value = luaL_checknumber(L, 3);
+	(*vec)[index] = value;
+	return 0;
+}
 
-int vec3_add(lua_State *L);
-int vec3_sub(lua_State *L);
-int vec3_scale(lua_State *L);
-int vec3_dot(lua_State *L);
-int vec3_cross(lua_State *L);
 
-const char *vec3_tname = "glm.vec3";
+int glm_vec3_get(lua_State *L)
+{
+	vec3 *vec = luaL_checkudata(L, 1, glm_vec3_tname);
+	int index = luaL_checkinteger(L, 2);
+	lua_pushnumber(L, (*vec)[index]);
+	return 1;
+}
 
 
-void setup_vec3(lua_State *L, int glm_tbl)
+int glm_vec3_bind(lua_State *L)
 {
-	luaL_newmetatable(L, vec3_tname);
-	lua_pop(L, 1);
+	vec4 *v4 = luaL_checkudata(L, 1, glm_vec4_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3(*v4, *dest);
+	return 0;
+}
 
-	int tbl = hs_create_table(L,
-		hs_str_cfunc("vec3", vec3_create),
-		hs_str_cfunc("vec3_set", vec3_set),
-		hs_str_cfunc("vec3_get", vec3_get),
 
-		hs_str_cfunc("vec3_normalize", vec3_normalize),
+int glm_vec3_copy_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_copy(*a, *dest);
+	return 0;
+}
 
-		hs_str_cfunc("vec3_add", vec3_add),
-		hs_str_cfunc("vec3_sub", vec3_sub),
-		hs_str_cfunc("vec3_scale", vec3_scale),
-		hs_str_cfunc("vec3_dot", vec3_dot),
-		hs_str_cfunc("vec3_cross", vec3_cross),
-	);
 
-	append_table(L, glm_tbl, tbl);
-	lua_pop(L, 1);
+int glm_vec3_zero_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_zero(*v);
+	return 0;
 }
 
 
-int vec3_create(lua_State *L)
+int glm_vec3_one_bind(lua_State *L)
 {
-	lua_newuserdata(L, 3*sizeof(float));
-	luaL_getmetatable(L, vec3_tname);
-	lua_setmetatable(L, -2);
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_one(*v);
+	return 0;
+}
+
+
+int glm_vec3_dot_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	float bind_result = glm_vec3_dot(*a, *b);
+	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int vec3_set(lua_State *L)
+int glm_vec3_cross_bind(lua_State *L)
 {
-	float *vec = luaL_checkudata(L, 1, vec3_tname);
-	int index = luaL_checkinteger(L, 2);
-	double value = luaL_checknumber(L, 3);
-	array_set(L, 3, vec, index, value);
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *d = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_cross(*a, *b, *d);
 	return 0;
 }
 
 
-int vec3_get(lua_State *L)
+int glm_vec3_crossn_bind(lua_State *L)
 {
-	float *vec = luaL_checkudata(L, 1, vec3_tname);
-	int index = luaL_checkinteger(L, 2);
-	array_get(L, 3, vec, index);
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_crossn(*a, *b, *dest);
+	return 0;
+}
+
+
+int glm_vec3_norm2_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float bind_result = glm_vec3_norm2(*v);
+	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int vec3_normalize(lua_State *L)
+int glm_vec3_norm_bind(lua_State *L)
+{
+	vec3 *vec = luaL_checkudata(L, 1, glm_vec3_tname);
+	float bind_result = glm_vec3_norm(*vec);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int glm_vec3_add_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_add(*a, *b, *dest);
+	return 0;
+}
+
+
+int glm_vec3_adds_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	float s = luaL_checknumber(L, 2);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_adds(*a, s, *dest);
+	return 0;
+}
+
+
+int glm_vec3_sub_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_sub(*v1, *v2, *dest);
+	return 0;
+}
+
+
+int glm_vec3_subs_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float s = luaL_checknumber(L, 2);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_subs(*v, s, *dest);
+	return 0;
+}
+
+
+int glm_vec3_mul_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *d = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_mul(*a, *b, *d);
+	return 0;
+}
+
+
+int glm_vec3_scale_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float s = luaL_checknumber(L, 2);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_scale(*v, s, *dest);
+	return 0;
+}
+
+
+int glm_vec3_scale_as_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float s = luaL_checknumber(L, 2);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_scale_as(*v, s, *dest);
+	return 0;
+}
+
+
+int glm_vec3_div_bind(lua_State *L)
 {
-	float *vec = luaL_checkudata(L, 1, vec3_tname);
-	glm_vec3_normalize(vec);
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_div(*a, *b, *dest);
 	return 0;
 }
 
 
-int vec3_add(lua_State *L)
+int glm_vec3_divs_bind(lua_State *L)
 {
-	float *a = luaL_checkudata(L, 1, vec3_tname);
-	float *b = luaL_checkudata(L, 2, vec3_tname);
-	float *dest = luaL_checkudata(L, 3, vec3_tname);
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float s = luaL_checknumber(L, 2);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_divs(*v, s, *dest);
+	return 0;
+}
+
 
-	glm_vec3_add(a, b, dest);
+int glm_vec3_addadd_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_addadd(*a, *b, *dest);
 	return 0;
 }
 
 
-int vec3_sub(lua_State *L)
+int glm_vec3_subadd_bind(lua_State *L)
 {
-	float *a = luaL_checkudata(L, 1, vec3_tname);
-	float *b = luaL_checkudata(L, 2, vec3_tname);
-	float *dest = luaL_checkudata(L, 3, vec3_tname);
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_subadd(*a, *b, *dest);
+	return 0;
+}
 
-	glm_vec3_sub(a, b, dest);
+
+int glm_vec3_muladd_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_muladd(*a, *b, *dest);
 	return 0;
 }
 
-int vec3_scale(lua_State *L)
+
+int glm_vec3_muladds_bind(lua_State *L)
 {
-	float *v = luaL_checkudata(L, 1, vec3_tname);
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
 	float s = luaL_checknumber(L, 2);
-	float *dest = luaL_checkudata(L, 3, vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_muladds(*a, s, *dest);
+	return 0;
+}
+
+
+int glm_vec3_maxadd_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_maxadd(*a, *b, *dest);
+	return 0;
+}
+
+
+int glm_vec3_minadd_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_minadd(*a, *b, *dest);
+	return 0;
+}
+
+
+int glm_vec3_flipsign_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_flipsign(*v);
+	return 0;
+}
+
+
+int glm_vec3_flipsign_to_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_flipsign_to(*v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_inv_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_inv(*v);
+	return 0;
+}
+
+
+int glm_vec3_inv_to_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_inv_to(*v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_negate_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_negate(*v);
+	return 0;
+}
+
+
+int glm_vec3_negate_to_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_negate_to(*v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_normalize_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	glm_vec3_normalize(*v);
+	return 0;
+}
+
+
+int glm_vec3_normalize_to_bind(lua_State *L)
+{
+	vec3 *vec = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_normalize_to(*vec, *dest);
+	return 0;
+}
+
+
+int glm_vec3_angle_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	float bind_result = glm_vec3_angle(*v1, *v2);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
+
+
+int glm_vec3_rotate_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float angle = luaL_checknumber(L, 2);
+	vec3 *axis = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_rotate(*v, angle, *axis);
+	return 0;
+}
+
+
+int glm_vec3_rotate_m4_bind(lua_State *L)
+{
+	mat4 *m = luaL_checkudata(L, 1, glm_mat4_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_rotate_m4(*m, *v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_rotate_m3_bind(lua_State *L)
+{
+	mat3 *m = luaL_checkudata(L, 1, glm_mat3_tname);
+	vec3 *v = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_rotate_m3(*m, *v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_proj_bind(lua_State *L)
+{
+	vec3 *a = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *b = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_proj(*a, *b, *dest);
+	return 0;
+}
+
 
-	glm_vec3_scale(v, s, dest);
+int glm_vec3_center_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_center(*v1, *v2, *dest);
 	return 0;
 }
 
 
-int vec3_dot(lua_State *L)
+int glm_vec3_distance2_bind(lua_State *L)
 {
-	float *a = luaL_checkudata(L, 1, vec3_tname);
-	float *b = luaL_checkudata(L, 2, vec3_tname);
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	float bind_result = glm_vec3_distance2(*v1, *v2);
+	lua_pushnumber(L, bind_result);
+	return 1;
+}
 
-	float result = glm_vec3_dot(a, b);
-	lua_pushnumber(L, result);
+
+int glm_vec3_distance_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	float bind_result = glm_vec3_distance(*v1, *v2);
+	lua_pushnumber(L, bind_result);
 	return 1;
 }
 
 
-int vec3_cross(lua_State *L)
+int glm_vec3_maxv_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_maxv(*v1, *v2, *dest);
+	return 0;
+}
+
+
+int glm_vec3_minv_bind(lua_State *L)
+{
+	vec3 *v1 = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *v2 = luaL_checkudata(L, 2, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 3, glm_vec3_tname);
+	glm_vec3_minv(*v1, *v2, *dest);
+	return 0;
+}
+
+
+int glm_vec3_ortho_bind(lua_State *L)
+{
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *dest = luaL_checkudata(L, 2, glm_vec3_tname);
+	glm_vec3_ortho(*v, *dest);
+	return 0;
+}
+
+
+int glm_vec3_clamp_bind(lua_State *L)
 {
-	float *a = luaL_checkudata(L, 1, vec3_tname);
-	float *b = luaL_checkudata(L, 2, vec3_tname);
-	float *dest = luaL_checkudata(L, 3, vec3_tname);
+	vec3 *v = luaL_checkudata(L, 1, glm_vec3_tname);
+	float minVal = luaL_checknumber(L, 2);
+	float maxVal = luaL_checknumber(L, 3);
+	glm_vec3_clamp(*v, minVal, maxVal);
+	return 0;
+}
+
 
-	glm_vec3_cross(a, b, dest);
+int glm_vec3_lerp_bind(lua_State *L)
+{
+	vec3 *from = luaL_checkudata(L, 1, glm_vec3_tname);
+	vec3 *to = luaL_checkudata(L, 2, glm_vec3_tname);
+	float t = luaL_checknumber(L, 3);
+	vec3 *dest = luaL_checkudata(L, 4, glm_vec3_tname);
+	glm_vec3_lerp(*from, *to, t, *dest);
 	return 0;
 }
diff --git a/src/import/notes.md b/src/import/notes.md
new file mode 100644
index 0000000..bf84f32
--- /dev/null
+++ b/src/import/notes.md
@@ -0,0 +1,14 @@
+tinyobj notes
+=============
+
+tinyobjloader-c is not a very well-documented library, so i'm gonna keep some notes
+as i figure things out
+
+ * the indices within a vertex_index_t object are not indices into the vertices, normals, or texcoords arrays;
+   rather, they are indices to 3-vectors within those arrays. To get actual indices, multiply them by three.
+ * "shapes" are individual meshes.
+   * a shape's `face_offset` is the *number of faces* into the `faces` array to go before
+     you find the data for the current shape, and the length is the *number of faces*.
+     This means that they are **NOT** indices to the `faces` array; they are indices/lengths
+     in the `face_num_verts` array, which you can then use to determine indices into the
+     faces array.