From ea6dabdd780e0884bff2fc9554e8eb18673cf97c Mon Sep 17 00:00:00 2001
From: Benjamin Collins <kion@dashgl.com>
Date: Tue, 11 Aug 2020 16:21:09 +0900
Subject: [PATCH] chunk parse
---
NinjaModel.py | 84 +++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 81 insertions(+), 3 deletions(-)
diff --git a/NinjaModel.py b/NinjaModel.py
index 6a478db..2aa9384 100644
--- a/NinjaModel.py
+++ b/NinjaModel.py
@@ -202,6 +202,7 @@ class NinjaModel: # {
}
self.bone.apply(vertex['pos'])
self.index_lookup[vertex_ofs] = len(self.vertex_list)
+ vertex_ofs += 1
self.vertex_list.append(vertex)
pos = self.file.tell()
@@ -232,6 +233,9 @@ class NinjaModel: # {
if chunk_head == 255:
break
+ elif chunk_head == 0:
+ print("Null Chunk")
+ continue
elif chunk_head >= 17 and chunk_head <= 23:
print("Chunk: Material")
bytes = self.file.read(2)
@@ -284,8 +288,11 @@ class NinjaModel: # {
filter_sample = chunk_body >> 14 & 0x03
elif chunk_head >= 64 and chunk_head <= 66:
print("Chunk Strip!!!")
- bytes = self.file.read(2)
- chunk_body = struct.unpack('H', bytes)[0]
+
+ bytes = self.file.read(4)
+ h = struct.unpack('HH', bytes)
+ chunk_len = h[0] * 2
+ chunk_body = h[1]
ignore_light = chunk_flag & 0x01
ignore_specular = chunk_flag & 0x02
@@ -299,10 +306,81 @@ class NinjaModel: # {
user_offset = chunk_body >> 14
print("Strip count: %d" % strip_count)
- break
+ for i in range (strip_count):
+
+ bytes = self.file.read(2)
+ strip_len = struct.unpack('h', bytes)[0]
+ counter_clockwise = strip_len < 0
+ strip_len = abs(strip_len)
+ strip = []
+
+ for k in range (strip_len):
+ bytes = self.file.read(2)
+ index = struct.unpack('H', bytes)[0]
+ index = self.index_lookup[index]
+
+ if chunk_head == 64:
+ strip.append({
+ 'index' : index
+ })
+ continue
+
+ bytes = self.file.read(4)
+ uv = struct.unpack('hh', bytes)
+ u = uv[0]
+ v = uv[1]
+
+ if chunk_head == 65:
+ u = u / 255.0
+ v = v / 255.0
+ elif chunk_head == 66:
+ u = u / 1023.0
+ v = v / 1023.0
+
+ strip.append({
+ 'index' : index,
+ 'uv' : [ u, v ]
+ })
+
+ for i in range(len(strip) - 2): #{
+
+ if i % 2 == 0 and counter_clockwise:
+ a = strip[i + 0]
+ b = strip[i + 1]
+ c = strip[i + 2]
+ else :
+ a = strip[i + 1]
+ b = strip[i + 0]
+ c = strip[i + 2]
+
+ va = self.vertex_list[a['index']]
+ vb = self.vertex_list[a['index']]
+ vc = self.vertex_list[a['index']]
+
+ self.face_list.append({
+ 'index' : (
+ a['index'],
+ b['index'],
+ b['index']
+ ),
+ 'norm' : (
+ va['norm'],
+ vb['norm'],
+ vc['norm']
+ ),
+ uv : (
+ a['uv'],
+ b['uv'],
+ c['uv']
+ )
+ })
+ # }
+
+ print("Strip End: 0x%08x" % self.file.tell())
else:
print("Unknown Chunk Type %d" % chunk_head)
print("Unknown Chunk Flag %d" % chunk_flag)
+ print("Unknown File Position: 0x%08x" % self.file.tell())
break
#end While