fix texture loading

1 files changed, 38 insertions, 8 deletions

diff --git a/honey/mesh.lua b/honey/mesh.lua
index e9a3404..12edea9 100644
--- a/honey/mesh.lua
+++ b/honey/mesh.lua
@@ -4,25 +4,53 @@ setmetatable(module, {__index=_G})
 setfenv(1, module)
 
 
-local function insertVertex(vertices, attrib, vertex)
+local function printVertex(vertices, i)
+	print(string.format(
+		"p(%f, %f, %f), n(%f, %f, %f), t(%f, %f)",
+		vertices[i+0],
+		vertices[i+1],
+		vertices[i+2],
+
+
+		vertices[i+3],
+		vertices[i+4],
+		vertices[i+5],
+
+
+		vertices[i+5],
+		vertices[i+6]
+	))
+end
+
+
+local function insertVertex(vertices, attrib, vertex, debug)
+	if debug then print() end
 	local pos = 3*vertex.v_idx
 	for i=1,3 do
 		table.insert(vertices, attrib.vertices[pos+i])
+		if debug then print(vertices[#vertices]) end
 	end
 
 	local normal = 3*vertex.vn_idx
 	for i=1,3 do
 		table.insert(vertices, attrib.normals[normal+i])
+		if debug then print(vertices[#vertices]) end
 	end
 
-	local tex = 3*vertex.vt_idx
+	local tex = 2*vertex.vt_idx
 	for i=1,2 do
 		table.insert(vertices, attrib.texcoords[tex+i])
+		if debug then print(vertices[#vertices]) end
+	end
+	if debug then 
+		for i=1,#attrib.texcoords do
+			print(i, attrib.texcoords[i])
+		end
 	end
 end
 
 
-function loadShape(shape, attrib)
+function loadShape(shape, attrib, debug)
 	local vertices = {}
 	local indices = {}
 
@@ -32,7 +60,7 @@ function loadShape(shape, attrib)
 		assert(attrib.face_num_verts[i+1] == 3, "non-triangular face!")
 		for j=0,2 do
 			local vertex = attrib.faces[(3*i) + j + 1]
-			insertVertex(vertices, attrib, vertex)
+			insertVertex(vertices, attrib, vertex, debug)
 			table.insert(indices, #indices)
 		end
 	end
@@ -41,23 +69,25 @@ function loadShape(shape, attrib)
 end
 
 
-function loadFile(filename)
+function loadFile(filename, debug)
 	local flags = honey.tinyobj.FLAG_TRIANGULATE
+	if debug then print("load file:", filename) end
 	local attrib, shapes, materials = honey.tinyobj.parse_obj(filename, flags)
 	
 	local meshes = {}
 	for _, shape in ipairs(shapes) do
-		local vertices, indices = loadShape(shape, attrib)
+		local vertices, indices = loadShape(shape, attrib, debug)
 		table.insert(meshes, Mesh(vertices, indices))
 	end
+	if debug then print("finished file:", filename) end
 	return meshes
 end
 
 
 cache = {}
-function loadCached(filename, index)
+function loadCached(filename, index, debug)
 	if not cache[filename] then
-		cache[filename] = loadFile(filename)
+		cache[filename] = loadFile(filename, debug)
 	end
 	return cache[filename][index]
 end