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authorsanine-a <sanine.not@pm.me>2020-12-05 18:37:44 -0600
committersanine-a <sanine.not@pm.me>2020-12-05 18:37:44 -0600
commitba9a7162b72e6b20466de7dd115719777315b5c2 (patch)
tree80ecd412817ca85adcb0ec944ab4a28be7b4737c
parent09a96abe4d6933eb473b0dd8a7027cc0cb04ac63 (diff)
switch meshes to use metamathods
-rw-r--r--demo/SpatialShader.lua6
-rw-r--r--demo/main.lua4
-rw-r--r--src/mesh.c17
-rw-r--r--src/mesh.h2
-rw-r--r--src/primitives.c4
5 files changed, 24 insertions, 9 deletions
diff --git a/demo/SpatialShader.lua b/demo/SpatialShader.lua
index 699cff2..0c65176 100644
--- a/demo/SpatialShader.lua
+++ b/demo/SpatialShader.lua
@@ -74,10 +74,10 @@ SpatialShader.prototype.setCamera = function(self, camera)
self.shader:setMat4('projection', camera.projection)
end
-SpatialShader.prototype.drawMesh = function(self, mesh)
- self.shader:setMat4('model', mesh.transform)
+SpatialShader.prototype.drawMesh = function(self, meshInstance)
+ self.shader:setMat4('model', meshInstance.transform)
self.albedo:use(0)
- honey.mesh.draw(mesh.mesh, self.shader)
+ meshInstance.mesh:draw(self.shader)
end
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/demo/main.lua b/demo/main.lua
index 5b19166..8e8d3d3 100644
--- a/demo/main.lua
+++ b/demo/main.lua
@@ -20,7 +20,7 @@ local lightDirection = honey.glm.vec3{1,1,1}
lightDirection:normalize()
shader:setVec3('directional_lights[0].direction', lightDirection)
shader:setVec3('directional_lights[0].color', honey.glm.vec3{0,1,0})
-local meshes = honey.mesh.load('Suzanne.obj')
+local meshes = honey.mesh('Suzanne.obj')
local suzanne = MeshInstance.new(sceneRoot,
honey.glm.vec3{0,0,3},
honey.glm.vec3{0,math.pi,0},
@@ -41,7 +41,7 @@ local plane2 = MeshInstance.new(suzanne,
shader)
suzanne.update = function(self, dt)
- self:rotate('y', 10*dt)
+ self:rotate('y', dt)
end
local total_frames = 0
diff --git a/src/mesh.c b/src/mesh.c
index e3b3a43..85364a8 100644
--- a/src/mesh.c
+++ b/src/mesh.c
@@ -1,5 +1,7 @@
#include "mesh.h"
+int honey_mesh_mt_ref = LUA_NOREF;
+
static int honey_mesh_lua_draw(lua_State* L)
{
honey_mesh* mesh;
@@ -22,10 +24,14 @@ static int honey_mesh_lua_delete(lua_State* L)
void honey_setup_mesh(lua_State* L)
{
honey_lua_create_table
- (L, 3,
- HONEY_FUNCTION, "load", honey_mesh_load,
- HONEY_FUNCTION, "draw", honey_mesh_lua_draw,
- HONEY_FUNCTION, "delete", honey_mesh_lua_delete);
+ (L, 2,
+ HONEY_TABLE, "__index", 1,
+ HONEY_FUNCTION, "draw", honey_mesh_lua_draw,
+
+ HONEY_FUNCTION, "__gc", honey_mesh_lua_delete);
+ honey_mesh_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ lua_pushcfunction(L, honey_mesh_load);
lua_setfield(L, -2, "mesh");
}
@@ -107,6 +113,9 @@ static void process_nodes_recursively(lua_State* L,
{
for (int i=0; i<node->mNumMeshes; i++) {
honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
+ lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref);
+ lua_setmetatable(L, -2);
+
struct aiMesh* assimp_mesh = scene->mMeshes[node->mMeshes[i]];
*mesh = assimp_to_honey_mesh(assimp_mesh, scene);
lua_rawseti(L, -2, *n_meshes);
diff --git a/src/mesh.h b/src/mesh.h
index 70b7f4d..c97e3cb 100644
--- a/src/mesh.h
+++ b/src/mesh.h
@@ -8,6 +8,8 @@
#include "common.h"
+extern int honey_mesh_mt_ref;
+
typedef struct {
unsigned int n_vertices, n_indices;
unsigned int vertex_array, vertex_buffer, element_buffer;
diff --git a/src/primitives.c b/src/primitives.c
index ee68f6a..d858cc6 100644
--- a/src/primitives.c
+++ b/src/primitives.c
@@ -8,6 +8,8 @@ static int honey_mesh_lua_plane(lua_State* L)
HONEY_NUMBER, &height);
honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
+ lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref);
+ lua_setmetatable(L, -2);
if (honey_mesh_new_textured_plane(mesh, width, height) != HONEY_OK) {
lua_pushstring(L, "error encountered while building plane");
lua_error(L);
@@ -24,6 +26,8 @@ static int honey_mesh_lua_cube(lua_State* L)
HONEY_NUMBER, &depth);
honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
+ lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref);
+ lua_setmetatable(L, -2);
if (honey_mesh_new_textured_cube(mesh, width, height, depth) != HONEY_OK) {
lua_pushstring(L, "error encountered while building plane");
lua_error(L);