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adler3d/gd_viewobj_by_FordPerfect.cpp

Created May 4, 2019 17:11
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gd_viewobj_by_FordPerfect.cpp
// forked from https://gamedev.ru/files/?id=138400
#include <windows.h>
#include <shellapi.h>
#include <cstdint>
#include <cstdio>
#include <cmath>
#include <cstring>
#include <cstdarg>
#include <array>
#include <vector>
#include <map>
//==============================================================================
typedef signed char si8;
typedef unsigned char ui8;
typedef std::int16_t si16;
typedef std::uint16_t ui16;
typedef std::int32_t si32;
typedef std::uint32_t ui32;
typedef std::int64_t si64;
typedef std::uint64_t ui64;
//==============================================================================
using std::size_t;
using std::memset;
using std::memcpy;
using std::memmove;
using std::sscanf;
using std::snprintf;
using std::fopen;
using std::fgets;
using std::feof;
using std::vector;
using std::map;
using std::array;
//==============================================================================
// SIMD stuff. So far, __GNUC__-only (GCC, clang). For MSVC may make
// simd4i etc. wrapper classes around intrinsics.
// Seems straightforward, but more work.
// Built-ins are used instead of intrinsics, because it plays better
// with dynamic CPU dispatch, esp. on older GCCs.
// stdcall is to work around "calling 'function' with SSE calling convention without SSE/SSE2 enabled".
// See https://gamedev.ru/code/forum/?id=233033&page=24&m=4913696#m347 for longer write-up.
bool allow_simd;
typedef si32 __attribute__((vector_size(16))) simd4i;
typedef float __attribute__((vector_size(16))) simd4f;
#define CODE_SSE2 __attribute__((target("sse2,fpmath=sse"),stdcall))
#define CPU_HAS_SSE2() (allow_simd&&__builtin_cpu_supports("sse2"))
#define ALIGNED(n) __attribute__((aligned(n)))
static inline CODE_SSE2 simd4i load4i(const void *p) {simd4i ret; memcpy(&ret,p,sizeof(ret)); return ret;}
static inline CODE_SSE2 simd4f load4f(const void *p) {simd4f ret; memcpy(&ret,p,sizeof(ret)); return ret;}
static inline CODE_SSE2 void store4i(simd4i value,void *p) {memcpy(p,&value,sizeof(value));}
static inline CODE_SSE2 void store4f(simd4f value,void *p) {memcpy(p,&value,sizeof(value));}
static inline CODE_SSE2 simd4i fill4i(si32 x) {return simd4i{x,x,x,x};}
static inline CODE_SSE2 simd4f fill4f(float x) {return simd4f{x,x,x,x};}
template<si32 i0,si32 i1,si32 i2,si32 i3>
static inline CODE_SSE2 simd4i shuffle4i(simd4i v) {return simd4i{v[i0],v[i1],v[i2],v[i3]};}
template<si32 i0,si32 i1,si32 i2,si32 i3>
static inline CODE_SSE2 simd4f shuffle4f(simd4f v) {return simd4f{v[i0],v[i1],v[i2],v[i3]};}
static inline CODE_SSE2 simd4f cvt4if(simd4i v) {return simd4f{float(v[0]),float(v[1]),float(v[2]),float(v[3])};}
static inline CODE_SSE2 simd4i cvt4fi(simd4f v) {return simd4i{si32(v[0]),si32(v[1]),si32(v[2]),si32(v[3])};}
static inline CODE_SSE2 si32 signs4f(simd4f v) {return si32(__builtin_ia32_movmskps(v));}
static inline CODE_SSE2 si32 signs4i(simd4i v) {return signs4f((simd4f)v);}
static inline CODE_SSE2 simd4i min4i(simd4i a,simd4i b) {return a<b?a:b;}
static inline CODE_SSE2 simd4i max4i(simd4i a,simd4i b) {return a>b?a:b;}
static inline CODE_SSE2 simd4f min4f(simd4f a,simd4f b) {return __builtin_ia32_minps(a,b);}
static inline CODE_SSE2 simd4f max4f(simd4f a,simd4f b) {return __builtin_ia32_maxps(a,b);}
static inline CODE_SSE2 simd4f rcp4f(simd4f v) {return __builtin_ia32_rcpps(v);}
static inline CODE_SSE2 simd4f rsqrt4f(simd4f v) {return __builtin_ia32_rsqrtps(v);}
static inline CODE_SSE2 simd4i load2x64(const void *p0,const void *p1)
{
simd4i ret;
__asm__(
"movq %[p0],%[ret]\n\t"
"movhps %[p1],%[ret]\n\t"
:[ret]"=x"(ret)
:[p0]"m"(*(const ui8*)p0)
,[p1]"m"(*(const ui8*)p1));
return ret;
}
static inline CODE_SSE2 void store2x64(simd4i v,void *p0,void *p1)
{
__asm__(
"movq %[v],%[p0]\n\t"
"movhps %[v],%[p1]\n\t"
:
:[v]"x"(v)
,[p0]"m"(*(ui8*)p0)
,[p1]"m"(*(ui8*)p1)
:"memory");
}
//==============================================================================
static const si32 WIN_W=512;
static const si32 WIN_H=512;
static ui8 window_buffer[WIN_W*WIN_H*4];
static float depth_buffer[WIN_W*WIN_H];
static ui64 timer_frequency;
static ui64 timer_start;
static bool kdown[256],kprsd[256];
static float R[9];
static float T[3];
static float L[3];
static char model_name[8192];
static bool loaded;
static bool quit;
static bool show_help;
static float time_transform,time_triangles,time_rasterize;
static si32 pixels_touched,pixels_total,pixels_visible;
struct Model
{
vector<array<float,4> > orig_vertices;
vector<array<float,3> > orig_texcoords;
vector<array<float,3> > orig_normals;
vector<vector<array<si32,3> > > faces;
vector<float> vertices;
vector<float> normals;
vector<float> vnormals;
vector<float> fnormals;
vector<float> texcoords;
vector<si32> triangles;
float center[3];
float extents[3];
void clear();
bool load(const char *filename);
};
struct TriInfo
{
// [x/w,y/w,z/w,1/w]
ALIGNED(16) float v[3][4];
// Subpixel screen coordinates. [0..2] are vertices, [3] is pixel center of (x_min,x_max).
ALIGNED(16) si32 ix[4],iy[4];
// Barycentric coordinates at (cx,cy), and area: d[3]=d[0]+d[1]+d[2].
ALIGNED(16) si32 d[4];
// Increments. [3]=0.
ALIGNED(16) si32 ddx[4];
ALIGNED(16) si32 ddy[4];
// Bounding box.
si32 x_min,x_max;
si32 y_min,y_max;
// Inverse area.
float w;
// Biases, to incorporate fill rules.
ui8 b[3];
};
static Model model;
static ui64 load_time;
static vector<float> transformed;
static vector<TriInfo> tris;
//==============================================================================
template<typename T>
static inline T load(const void *p)
{
T ret;
memmove(&ret,p,sizeof(ret));
return ret;
}
template<typename T>
static inline void store(const T &value,void *p)
{
memmove(p,&value,sizeof(value));
}
template<typename T,typename S>
static inline T bitcast(const S &value)
{
static_assert(sizeof(T)==sizeof(S),"Size mismatch!");
T ret;
memcpy(&ret,&value,sizeof(ret));
return ret;
}
//==============================================================================
// Embedded from: http://font.gohu.org/
unsigned char font[128][11]=
{
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x20,0x00,0x00},
{0x00,0x50,0x50,0x50,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x50,0x50,0xF8,0x50,0xF8,0x50,0x50,0x00,0x00,0x00},
{0x00,0x20,0x70,0xA8,0xA0,0x70,0x28,0xA8,0x70,0x20,0x00},
{0x00,0x00,0x48,0xA8,0x50,0x20,0x50,0xA8,0x90,0x00,0x00},
{0x00,0x00,0x60,0x90,0xA0,0x40,0xA8,0x90,0x68,0x00,0x00},
{0x00,0x20,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x10,0x20,0x20,0x40,0x40,0x40,0x20,0x20,0x10,0x00},
{0x00,0x40,0x20,0x20,0x10,0x10,0x10,0x20,0x20,0x40,0x00},
{0x00,0x00,0x00,0x20,0xA8,0x70,0xA8,0x20,0x00,0x00,0x00},
{0x00,0x00,0x00,0x20,0x20,0xF8,0x20,0x20,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x20,0x40},
{0x00,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x00,0x00},
{0x00,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x40,0x80,0x80},
{0x00,0x00,0x70,0x88,0x98,0xA8,0xC8,0x88,0x70,0x00,0x00},
{0x00,0x00,0x20,0x60,0xA0,0x20,0x20,0x20,0x20,0x00,0x00},
{0x00,0x00,0x70,0x88,0x08,0x10,0x20,0x40,0xF8,0x00,0x00},
{0x00,0x00,0x70,0x88,0x08,0x30,0x08,0x88,0x70,0x00,0x00},
{0x00,0x00,0x10,0x30,0x50,0x90,0xF8,0x10,0x10,0x00,0x00},
{0x00,0x00,0xF8,0x80,0xF0,0x08,0x08,0x88,0x70,0x00,0x00},
{0x00,0x00,0x70,0x80,0xF0,0x88,0x88,0x88,0x70,0x00,0x00},
{0x00,0x00,0xF8,0x08,0x10,0x10,0x20,0x20,0x20,0x00,0x00},
{0x00,0x00,0x70,0x88,0x88,0x70,0x88,0x88,0x70,0x00,0x00},
{0x00,0x00,0x70,0x88,0x88,0x78,0x08,0x08,0x70,0x00,0x00},
{0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x30,0x30,0x00,0x00},
{0x00,0x00,0x00,0x00,0x60,0x60,0x00,0x60,0x60,0x20,0x40},
{0x00,0x00,0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x00,0x00},
{0x00,0x00,0x00,0x00,0xF8,0x00,0xF8,0x00,0x00,0x00,0x00},
{0x00,0x00,0x40,0x20,0x10,0x08,0x10,0x20,0x40,0x00,0x00},
{0x00,0x00,0x70,0x88,0x08,0x10,0x20,0x00,0x20,0x00,0x00},
{0x00,0x00,0x70,0x88,0xB8,0xA8,0xB8,0x80,0x78,0x00,0x00},
{0x00,0x70,0x88,0x88,0xF8,0x88,0x88,0x88,0x88,0x00,0x00},
{0x00,0xF0,0x88,0x88,0xF0,0x88,0x88,0x88,0xF0,0x00,0x00},
{0x00,0x70,0x88,0x80,0x80,0x80,0x80,0x88,0x70,0x00,0x00},
{0x00,0xF0,0x88,0x88,0x88,0x88,0x88,0x88,0xF0,0x00,0x00},
{0x00,0xF8,0x80,0x80,0xF0,0x80,0x80,0x80,0xF8,0x00,0x00},
{0x00,0xF8,0x80,0x80,0xF0,0x80,0x80,0x80,0x80,0x00,0x00},
{0x00,0x70,0x88,0x80,0xB8,0x88,0x88,0x88,0x70,0x00,0x00},
{0x00,0x88,0x88,0x88,0xF8,0x88,0x88,0x88,0x88,0x00,0x00},
{0x00,0x70,0x20,0x20,0x20,0x20,0x20,0x20,0x70,0x00,0x00},
{0x00,0x08,0x08,0x08,0x08,0x08,0x88,0x88,0x70,0x00,0x00},
{0x00,0x88,0x90,0xA0,0xC0,0xA0,0x90,0x88,0x88,0x00,0x00},
{0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xF8,0x00,0x00},
{0x00,0x88,0xD8,0xA8,0xA8,0x88,0x88,0x88,0x88,0x00,0x00},
{0x00,0x88,0xC8,0xC8,0xA8,0xA8,0x98,0x98,0x88,0x00,0x00},
{0x00,0x70,0x88,0x88,0x88,0x88,0x88,0x88,0x70,0x00,0x00},
{0x00,0xF0,0x88,0x88,0xF0,0x80,0x80,0x80,0x80,0x00,0x00},
{0x00,0x70,0x88,0x88,0x88,0x88,0xA8,0x90,0x68,0x08,0x00},
{0x00,0xF0,0x88,0x88,0xF0,0x90,0x88,0x88,0x88,0x00,0x00},
{0x00,0x70,0x88,0x80,0x70,0x08,0x08,0x88,0x70,0x00,0x00},
{0x00,0xF8,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x00},
{0x00,0x88,0x88,0x88,0x88,0x88,0x88,0x88,0x70,0x00,0x00},
{0x00,0x88,0x88,0x88,0x88,0x50,0x50,0x20,0x20,0x00,0x00},
{0x00,0x88,0x88,0x88,0xA8,0xA8,0xA8,0x50,0x50,0x00,0x00},
{0x00,0x88,0x88,0x50,0x20,0x50,0x88,0x88,0x88,0x00,0x00},
{0x00,0x88,0x88,0x50,0x20,0x20,0x20,0x20,0x20,0x00,0x00},
{0x00,0xF8,0x08,0x10,0x20,0x40,0x80,0x80,0xF8,0x00,0x00},
{0x00,0x38,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x38,0x00},
{0x00,0x40,0x40,0x20,0x20,0x10,0x10,0x08,0x08,0x04,0x04},
{0x00,0xE0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0xE0,0x00},
{0x00,0x00,0x20,0x50,0x88,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0x00},
{0x00,0x40,0x20,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x70,0x08,0x78,0x88,0x78,0x00,0x00},
{0x00,0x80,0x80,0x80,0xB0,0xC8,0x88,0x88,0xF0,0x00,0x00},
{0x00,0x00,0x00,0x00,0x78,0x80,0x80,0x80,0x78,0x00,0x00},
{0x00,0x08,0x08,0x08,0x78,0x88,0x88,0x98,0x68,0x00,0x00},
{0x00,0x00,0x00,0x00,0x70,0x88,0xF8,0x80,0x78,0x00,0x00},
{0x00,0x30,0x40,0x40,0x70,0x40,0x40,0x40,0x40,0x00,0x00},
{0x00,0x00,0x00,0x00,0x78,0x88,0x88,0x98,0x68,0x08,0x70},
{0x00,0x80,0x80,0x80,0xB0,0xC8,0x88,0x88,0x88,0x00,0x00},
{0x00,0x00,0x20,0x00,0x60,0x20,0x20,0x20,0x30,0x00,0x00},
{0x00,0x00,0x20,0x00,0x60,0x20,0x20,0x20,0x20,0x20,0xC0},
{0x00,0x80,0x80,0x80,0x90,0xA0,0xE0,0x90,0x88,0x00,0x00},
{0x00,0x60,0x20,0x20,0x20,0x20,0x20,0x20,0x18,0x00,0x00},
{0x00,0x00,0x00,0x00,0xF0,0xA8,0xA8,0xA8,0xA8,0x00,0x00},
{0x00,0x00,0x00,0x00,0xF0,0x88,0x88,0x88,0x88,0x00,0x00},
{0x00,0x00,0x00,0x00,0x70,0x88,0x88,0x88,0x70,0x00,0x00},
{0x00,0x00,0x00,0x00,0xB0,0xC8,0x88,0x88,0xF0,0x80,0x80},
{0x00,0x00,0x00,0x00,0x78,0x88,0x88,0x98,0x68,0x08,0x08},
{0x00,0x00,0x00,0x00,0xB0,0xC8,0x80,0x80,0x80,0x00,0x00},
{0x00,0x00,0x00,0x00,0x70,0x80,0x70,0x08,0xF0,0x00,0x00},
{0x00,0x40,0x40,0x40,0xF0,0x40,0x40,0x40,0x30,0x00,0x00},
{0x00,0x00,0x00,0x00,0x88,0x88,0x88,0x98,0x68,0x00,0x00},
{0x00,0x00,0x00,0x00,0x88,0x88,0x50,0x50,0x20,0x00,0x00},
{0x00,0x00,0x00,0x00,0x88,0xA8,0xA8,0xA8,0x50,0x00,0x00},
{0x00,0x00,0x00,0x00,0x88,0x50,0x20,0x50,0x88,0x00,0x00},
{0x00,0x00,0x00,0x00,0x88,0x88,0x88,0x98,0x68,0x08,0x70},
{0x00,0x00,0x00,0x00,0xF8,0x10,0x20,0x40,0xF8,0x00,0x00},
{0x18,0x20,0x20,0x20,0x20,0xC0,0x20,0x20,0x20,0x20,0x18},
{0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00},
{0xC0,0x20,0x20,0x20,0x20,0x18,0x20,0x20,0x20,0x20,0xC0},
{0x00,0x00,0x00,0x00,0x40,0xA8,0x10,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}
};
//==============================================================================
static inline void set_pixel(si32 w,si32 h,si32 stride_in_bytes,ui8 *buffer,si32 x,si32 y,ui32 color)
{
if(x<0||x>=w||y<0||y>=h) return;
store(color,buffer+(y*stride_in_bytes+x*4));
}
static inline void print_char(si32 w,si32 h,si32 stride_in_bytes,ui8 *buffer,si32 x,si32 y,ui32 color,char c)
{
if(unsigned(c)<128)
{
for(si32 dy=0;dy<11;++dy)
for(si32 dx=0;dx<8;++dx)
if((font[unsigned(c)][10-dy]>>(7-dx))&1)
set_pixel(w,h,stride_in_bytes,buffer,x+dx,y+dy,color);
}
}
static inline void print_text_args(si32 w,si32 h,si32 stride_in_bytes,ui8 *buffer,si32 x,si32 y,ui32 color,const char *fmt,const va_list &args)
{
static const si32 N=4096;
char text[N];
std::vsnprintf(text,ui32(N),fmt,args);
text[N-1]=0;
for(si32 i=0;text[i];++i)
print_char(w,h,stride_in_bytes,buffer,x+6*i,y,color,text[i]);
}
static inline void print_text(si32 w,si32 h,si32 stride_in_bytes,ui8 *buffer,si32 x,si32 y,ui32 color,const char *fmt,...)
{
va_list args;
va_start(args,fmt);
print_text_args(w,h,stride_in_bytes,buffer,x,y,color,fmt,args);
va_end(args);
}
static inline void set_pixel_screen(si32 x,si32 y,ui32 color)
{
set_pixel(WIN_W,WIN_H,WIN_W*4,window_buffer,x,y,color);
}
static inline void print_text_screen(si32 x,si32 y,ui32 color,const char *fmt,...)
{
va_list args;
va_start(args,fmt);
print_text_args(WIN_W,WIN_H,WIN_W*4,window_buffer,x,y,color,fmt,args);
va_end(args);
}
//==============================================================================
static inline ui64 get_time()
{
LARGE_INTEGER t;
QueryPerformanceCounter(&t);
return ui64(t.QuadPart);
}
//==============================================================================
// out=m*v, m is row-major.
static inline void mul_mat_vec(const float *m,const float *v,float *out)
{
float ret[4];
for(int i=0;i<4;++i)
ret[i]=m[4*i+0]*v[0]+
m[4*i+1]*v[1]+
m[4*i+2]*v[2]+
m[4*i+3]*v[3];
for(int i=0;i<4;++i)
out[i]=ret[i];
}
static inline float length_vec(const float *v)
{
return std::sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2]);
}
static inline void normalize_vec(const float *src,float *dst)
{
float x=src[0],y=src[1],z=src[2];
float d=std::sqrt(x*x+y*y+z*z);
d=1.0f/d;
dst[0]=x*d;
dst[1]=y*d;
dst[2]=z*d;
}
// out=l*r, l and r are row-major.
static void mul_mat_mat(const float *l,const float *r,float *out)
{
float ret[16];
for(int i=0;i<4;++i)
for(int j=0;j<4;++j)
ret[4*i+j]=l[4*i+0]*r[4*0+j]+
l[4*i+1]*r[4*1+j]+
l[4*i+2]*r[4*2+j]+
l[4*i+3]*r[4*3+j];
for(int i=0;i<16;++i)
out[i]=ret[i];
}
// Like glLoadIdentity, except... erm, whatever.
static inline void mat_identity(float *out)
{
for(int i=0;i<16;++i) out[i]=float(i%5==0);
}
// Like glTranslate, except row-major.
static inline void mat_translate(float x,float y,float z,float *out)
{
mat_identity(out);
out[ 3]=x;
out[ 7]=y;
out[11]=z;
}
// Like glRotate, except angle in radians, and row-major.
static inline void mat_rotate(float a,float x,float y,float z,float *out)
{
float c=std::cos(a);
float s=std::sin(a);
float b=1.0f-c;
out[ 0]=x*x*b+c; out[ 1]=x*y*b-z*s;out[ 2]=x*z*b+y*s;out[ 3]=0.0f;
out[ 4]=y*x*b+z*s;out[ 5]=y*y*b+c; out[ 6]=y*z*b-x*s;out[ 7]=0.0f;
out[ 8]=z*x*b-y*s;out[ 9]=z*y*b+x*s;out[10]=z*z*b+c; out[11]=0.0f;
out[12]=0.0f; out[13]=0.0f; out[14]=0.0f; out[15]=1.0f;
}
// Like glFrustum, except row-major.
static inline void mat_frustum(float l,float r,float b,float t,float n,float f,float *out)
{
out[ 0]= (n+n)/(r-l);out[ 1]= 0.0f; out[ 2]= (r+l)/(r-l);out[ 3]= 0.0f;
out[ 4]= 0.0f; out[ 5]= (n+n)/(t-b);out[ 6]= (t+b)/(t-b);out[ 7]= 0.0f;
out[ 8]= 0.0f; out[ 9]= 0.0f; out[10]=-(f+n)/(f-n);out[11]=-2.0f*f*n/(f-n);
out[12]= 0.0f; out[13]= 0.0f; out[14]=-1.0f; out[15]= 0.0f;
}
static inline void mat_view(float w,float h,float *out)
{
for(int i=0;i<16;++i) out[i]=0.0f;
out[ 0]=0.5f*w;out[ 3]=0.5f*w;
out[ 5]=0.5f*h;out[ 7]=0.5f*h;
out[10]=1.0f;
out[15]=1.0f;
}
//==============================================================================
void Model::clear()
{
orig_vertices.clear();
orig_vertices.push_back({0.0f,0.0f,0.0f,0.0f});
orig_texcoords.clear();
orig_texcoords.push_back({0.0f,0.0f,0.0f});
orig_normals.clear();
orig_normals.push_back({0.0f,0.0f,0.0f});
faces.clear();
vertices.clear();
texcoords.clear();
normals.clear();
vnormals.clear();
fnormals.clear();
triangles.clear();
center[0]=0.0f;center[1]=0.0f;center[2]=0.0f;
extents[0]=0.0f;extents[1]=0.0f;extents[2]=0.0f;
}
bool Model::load(const char *filename)
{
auto read_si32=[](const char *&cur,bool &e)->si32
{
long ret=0;
while(!(*cur>='0'&&*cur<='9')&&*cur) ++cur;
const char *c=cur;
while(*cur>='0'&&*cur<='9') ++cur;
if(sscanf(c,"%ld",&ret)<1) e=true;
return si32(ret);
};
bool ret=false;
char line[8192]; // Laaaame.
char s[sizeof(line)];
size_t id=0;
map<array<si32,3>,size_t> q;
ui64 t=get_time();
clear();
FILE *f=fopen(filename,"rb");
if(!f) goto fail;
while(!feof(f))
{
if(!fgets(line,int(sizeof(line)),f)) break;
if(sscanf(line,"%s",s)<1) continue;
if(s[0]=='#') continue;
if(s[0]=='v'&&s[1]=='\0')
{
array<float,4> v;
int n=sscanf(line,"v %g%g%g%g",v.data()+0,v.data()+1,v.data()+2,v.data()+3);
for(unsigned i=unsigned(n);i<4;++i) v[i]=float(i==3);
v[3]=1.0f;
orig_vertices.push_back(v);
}
if(s[0]=='v'&&s[1]=='n')
{
array<float,3> v;
int n=sscanf(line,"vn %g%g%g",v.data()+0,v.data()+1,v.data()+2);
for(unsigned i=unsigned(n);i<3;++i) v[i]=0.0f;
orig_normals.push_back(v);
}
if(s[0]=='v'&&s[1]=='t')
{
array<float,3> v;
int n=sscanf(line,"vt %g%g%g",v.data()+0,v.data()+1,v.data()+2);
for(unsigned i=unsigned(n);i<3;++i) v[i]=float(i==2);
orig_texcoords.push_back(v);
}
if(s[0]=='f')
{
const char *c=line;
faces.push_back(vector<array<si32,3> >());
while(*c)
{
bool e=false;
si32 v=0,vt=0,vn=0;
v=read_si32(c,e);
if(c[0]=='/')
{
if(c[1]=='/') vn=read_si32(c,e);
else
{
vt=read_si32(c,e);
if(c[0]=='/') vn=read_si32(c,e);
}
}
if(e) break;
if(v<0) v+=si32(orig_vertices.size());
if(vt<0) vt+=si32(orig_texcoords.size());
if(vn<0) vn+=si32(orig_normals.size());
faces.back().push_back({v,vt,vn});
}
}
}
for(const auto &f:faces)
for(const auto &c:f)
q[c]=0;
for(auto &c:q)
{
c.second=id++;
size_t vc=size_t(c.first[0]);
size_t vt=size_t(c.first[1]);
size_t vn=size_t(c.first[2]);
if(vc>=orig_vertices.size()||vt>=orig_texcoords.size()||vn>=orig_normals.size())
continue;
for(unsigned i=0;i<4;++i) vertices.push_back(orig_vertices[vc][i]);
for(unsigned i=0;i<2;++i) texcoords.push_back(orig_texcoords[vt][i]);
for(unsigned i=0;i<3;++i) normals.push_back(orig_normals[vn][i]);
}
vnormals.resize(3*q.size(),0.0f);
for(const auto &f:faces)
{
size_t n=f.size();
size_t i0=q.find(f[0])->second;
for(size_t i=1;i+1<n;++i)
{
size_t ii=q.find(f[i])->second;
size_t ij=q.find(f[i+1])->second;
triangles.push_back(si32(i0));
triangles.push_back(si32(ii));
triangles.push_back(si32(ij));
float w0=vertices[i0*4+3];
float w1=vertices[ii*4+3];
float w2=vertices[ij*4+3];
float x0=vertices[i0*4+0]/w0;
float x1=vertices[ii*4+0]/w1;
float x2=vertices[ij*4+0]/w2;
float y0=vertices[i0*4+1]/w0;
float y1=vertices[ii*4+1]/w1;
float y2=vertices[ij*4+1]/w2;
float z0=vertices[i0*4+2]/w0;
float z1=vertices[ii*4+2]/w1;
float z2=vertices[ij*4+2]/w2;
float nx=(y1-y0)*(z2-z0)-(z1-z0)*(y2-y0);
float ny=(z1-z0)*(x2-x0)-(x1-x0)*(z2-z0);
float nz=(x1-x0)*(y2-y0)-(y1-y0)*(x2-x0);
vnormals[i0*3+0]+=nx;
vnormals[i0*3+1]+=ny;
vnormals[i0*3+2]+=nz;
vnormals[ii*3+0]+=nx;
vnormals[ii*3+1]+=ny;
vnormals[ii*3+2]+=nz;
vnormals[ij*3+0]+=nx;
vnormals[ij*3+1]+=ny;
vnormals[ij*3+2]+=nz;
float dn=std::sqrt(nx*nx+ny*ny+nz*nz);
fnormals.push_back(nx/dn);
fnormals.push_back(ny/dn);
fnormals.push_back(nz/dn);
}
}
for(size_t i=0;i<q.size();++i)
{
float *v=vnormals.data()+3*i;
normalize_vec(v,v);
float *c=normals.data()+3*i;
float d=length_vec(c);
if(d==0.0f)
{
c[0]=v[0];
c[1]=v[1];
c[2]=v[2];
}
else
{
c[0]/=d;
c[1]/=d;
c[2]/=d;
}
}
if(!orig_vertices.empty())
{
float c[3][2];
for(size_t i=1;i<orig_vertices.size();++i)
for(size_t j=0;j<3;++j)
{
float t=orig_vertices[i][j]/orig_vertices[i][3];
if(i==1||t<c[j][0]) c[j][0]=t;
if(i==1||t>c[j][1]) c[j][1]=t;
}
for(size_t i=0;i<3;++i)
{
center[i]=(c[i][1]+c[i][0])/2.0f;
extents[i]=(c[i][1]-c[i][0])/2.0f;
}
}
ret=true;
fail:;
fclose(f);
transformed.resize(vertices.size());
tris.resize(triangles.size()/3);
for(si32 i=0;i<9;++i) R[i]=float(i%4==0);
for(si32 i=0;i<3;++i) T[i]=center[i];
T[2]+=2.0f*length_vec(extents);
L[0]=0.0f;L[1]=0.0f;L[2]=1.0f;
t=get_time()-t;
loaded=true;
load_time=t;
return ret;
}
//==============================================================================
static void init()
{
LARGE_INTEGER t;
QueryPerformanceCounter(&t);
timer_start=ui64(t.QuadPart);
QueryPerformanceFrequency(&t);
timer_frequency=ui64(t.QuadPart);
model.load(model_name);
}
//==============================================================================
static void triangle_setup_ref(
const float *v0,
const float *v1,
const float *v2,
TriInfo &tri)
{
// Early-out on vertices behind camera.
// If we had a proper clipping, this would not be necessary.
if((bitcast<si32>(v0[3])|bitcast<si32>(v1[3])|bitcast<si32>(v2[3]))<0)
{
tri.d[3]=-1;
return;
}
memcpy(tri.v[0],v0,sizeof(tri.v[0]));
memcpy(tri.v[1],v1,sizeof(tri.v[1]));
memcpy(tri.v[2],v2,sizeof(tri.v[2]));
for(si32 i=0;i<3;++i)
tri.v[i][3]=1.0f/tri.v[i][3];
for(si32 i=0;i<3;++i)
for(si32 j=0;j<3;++j)
tri.v[i][j]*=tri.v[i][3];
// Integer vertex coordinates (in 1/16th of pixel).
for(si32 i=0;i<3;++i)
{
tri.ix[i]=si32(16.0f*tri.v[i][0]);
tri.iy[i]=si32(16.0f*tri.v[i][1]);
}
// Early-out on non-positive area.
// No pixels would be covered anyway.
// If we needed 2-sided rendering, we would need to do something else.
if(-(tri.iy[2]-tri.iy[1])*(tri.ix[0]-tri.ix[1])+(tri.ix[2]-tri.ix[1])*(tri.iy[0]-tri.iy[1])<=0)
{
tri.d[3]=-1;
return;
}
// Bounding box.
tri.x_min=tri.ix[0];tri.x_max=tri.ix[0];
tri.y_min=tri.iy[0];tri.y_max=tri.iy[0];
if(tri.ix[1]<tri.x_min) tri.x_min=tri.ix[1];
if(tri.iy[1]<tri.y_min) tri.y_min=tri.iy[1];
if(tri.ix[2]<tri.x_min) tri.x_min=tri.ix[2];
if(tri.iy[2]<tri.y_min) tri.y_min=tri.iy[2];
if(tri.x_max<tri.ix[1]) tri.x_max=tri.ix[1];
if(tri.y_max<tri.iy[1]) tri.y_max=tri.iy[1];
if(tri.x_max<tri.ix[2]) tri.x_max=tri.ix[2];
if(tri.y_max<tri.iy[2]) tri.y_max=tri.iy[2];
tri.x_min>>=4;
tri.y_min>>=4;
tri.x_max>>=4;
tri.y_max>>=4;
tri.x_max+=1;
tri.y_max+=1;
if(tri.x_min<0) tri.x_min=0;
if(tri.y_min<0) tri.y_min=0;
//if(x_max>width) x_max=width;
//if(y_max>height) y_max=height;
// Pixel center of pixel (x_min,y_min).
tri.ix[3]=tri.x_min*16+8;
tri.iy[3]=tri.y_min*16+8;
// Barycentric coordinates.
for(si32 i=0;i<3;++i)
{
si32 j=(i+1)%3;
si32 k=(i+2)%3;
tri.d[i]=-(tri.iy[k]-tri.iy[j])*(tri.ix[3]-tri.ix[j])+(tri.ix[k]-tri.ix[j])*(tri.iy[3]-tri.iy[j]);
}
tri.d[3]=tri.d[0]+tri.d[1]+tri.d[2];
tri.w=1.0f/float(tri.d[3]);
// Biases, to incorporate fill rules.
for(si32 i=0;i<3;++i)
{
si32 j=(i+1)%3;
si32 k=(i+2)%3;
si32 b=1-si32((tri.iy[j]==tri.iy[k]&&tri.ix[k]<tri.ix[j])||(tri.iy[k]<tri.iy[j]));
tri.b[i]=ui8(b);
tri.d[i]-=b;
}
// Increments.
for(si32 i=0;i<3;++i)
{
si32 j=(i+1)%3;
si32 k=(i+2)%3;
tri.ddx[i]=-(tri.iy[k]-tri.iy[j])*16;
tri.ddy[i]=+(tri.ix[k]-tri.ix[j])*16;
}
}
static void CODE_SSE2 triangle_setup_sse2(
const float *v0,
const float *v1,
const float *v2,
TriInfo &tri)
{
ALIGNED(16) float w[4];
simd4f W=simd4f{1.0f,1.0f,1.0f,1.0f}/simd4f{v0[3],v1[3],v2[3],1.0f};
store4f(W,w);
store4f(load4f(v0)*w[0],tri.v[0]);
store4f(load4f(v1)*w[1],tri.v[1]);
store4f(load4f(v2)*w[2],tri.v[2]);
tri.v[0][3]=w[0];
tri.v[1][3]=w[1];
tri.v[2][3]=w[2];
// Integer vertex coordinates (in 1/16th of pixel).
simd4f X=simd4f{tri.v[0][0],tri.v[1][0],tri.v[2][0],0.0f};
simd4f Y=simd4f{tri.v[0][1],tri.v[1][1],tri.v[2][1],0.0f};
simd4i IX=cvt4fi(16.0f*X);
simd4i IY=cvt4fi(16.0f*Y);
store4i(IX,tri.ix);
store4i(IY,tri.iy);
// Bounding box.
ALIGNED(16) si32 m[4];
simd4i M=simd4i{tri.ix[0],~tri.ix[0],tri.iy[0],~tri.iy[0]};
M=min4i(M,simd4i{tri.ix[1],~tri.ix[1],tri.iy[1],~tri.iy[1]});
M=min4i(M,simd4i{tri.ix[2],~tri.ix[2],tri.iy[2],~tri.iy[2]});
M^=simd4i{0,-1,0,-1};
M=max4i(M,simd4i{0,-1,0,-1});
M>>=4;
M+=simd4i{0,2,0,2};
M&=simd4i{-2,-2,-2,-2};
store4i(M,m);
tri.x_min=m[0];tri.x_max=m[1];
tri.y_min=m[2];tri.y_max=m[3];
// Pixel center of pixel (x_min,y_min).
tri.ix[3]=tri.x_min*16+8;
tri.iy[3]=tri.y_min*16+8;
simd4i JX=shuffle4i<1,2,0,3>(IX),KX=shuffle4i<2,0,1,3>(IX);
simd4i JY=shuffle4i<1,2,0,3>(IY),KY=shuffle4i<2,0,1,3>(IY);
store4i(-(KY-JY)*(fill4i(tri.ix[3])-JX)+(KX-JX)*(fill4i(tri.iy[3])-JY),tri.d);
tri.d[3]=tri.d[0]+tri.d[1]+tri.d[2];
tri.w=1.0f/float(tri.d[3]);
ALIGNED(4) si32 b[4];
simd4i B=fill4i(1)+(((JY==KY)&(KX<JX))|(KY<JY));
store4i(B,b);
// Biases, to incorporate fill rules.
for(si32 i=0;i<3;++i)
{
tri.b[i]=ui8(b[i]);
tri.d[i]-=b[i];
}
ALIGNED(16) si32 dx[4],dy[4];
simd4i DX=-((KY-JY)<<4);
simd4i DY=+((KX-JX)<<4);
store4i(DX,dx);
store4i(DY,dy);
// Increments.
for(si32 i=0;i<3;++i)
{
tri.ddx[i]=dx[i];
tri.ddy[i]=dy[i];
}
}
static void setup_triangles_ref(si32 n,const si32 *id,const float *v,TriInfo *tris)
{
for(si32 i=0;i<n;++i)
triangle_setup_ref(
v+4*id[3*i+0],
v+4*id[3*i+1],
v+4*id[3*i+2],
tris[i]);
}
static void CODE_SSE2 setup_triangles_sse2(si32 n,const si32 *id,const float *v,TriInfo *tris)
{
for(si32 i=0;i<n;++i)
triangle_setup_sse2(
v+4*id[3*i+0],
v+4*id[3*i+1],
v+4*id[3*i+2],
tris[i]);
}
//==============================================================================
// Straightforward templated half-space triangle rasterizer.
// Rasterizes the triangle and invokes f(x,y,w0,w1,w2) for every
// covered pixel, where w0,w1,w2 are normalized barycentric
// coordinates (so that w0+w1+w2=1).
// Cartesian coordinate system (x - right, y - up) is assumed.
// Clockwise triangles are discarded.
// Sampling is at pixel centers.
// Rasterization honors the fill rules.
// Max surface size: 0<=w,h<2048.
// Subpixel precision: 4 bits (1/16th of pixel).
// Cf. https://fgiesen.wordpress.com/2013/02/08/triangle-rasterization-in-practice/
// for the algorithm's description.
template<typename F>
static inline void render_triangle(
const TriInfo &tri,
si32 width,si32 height,
const F &f)
{
// Bounding box.
si32 x_min=tri.x_min,x_max=tri.x_max;
si32 y_min=tri.y_min,y_max=tri.y_max;
if(x_max>width) x_max=width;
if(y_max>height) y_max=height;
// Barycentric coordinates.
si32 d0=tri.d[0];
si32 d1=tri.d[1];
si32 d2=tri.d[2];
float w=tri.w;
// Biases, to incorporate fill rules.
si32 b0=tri.b[0];
si32 b1=tri.b[1];
si32 b2=tri.b[2];
// Increments.
si32 dd0dx=tri.ddx[0];
si32 dd1dx=tri.ddx[1];
si32 dd2dx=tri.ddx[2];
si32 dd0dy=tri.ddy[0];
si32 dd1dy=tri.ddy[1];
si32 dd2dy=tri.ddy[2];
// Process pixels in bounding box.
for(si32 y=y_min;y<y_max;++y)
{
si32 d0x=d0;
si32 d1x=d1;
si32 d2x=d2;
for(si32 x=x_min;x<x_max;++x)
{
if((d0x|d1x|d2x)>=0)
{
float w0=float(d0x+b0)*w;
float w1=float(d1x+b1)*w;
float w2=float(d2x+b2)*w;
f(x,y,w0,w1,w2);
}
d0x+=dd0dx;
d1x+=dd1dx;
d2x+=dd2dx;
}
d0+=dd0dy;
d1+=dd1dy;
d2+=dd2dy;
}
}
// SIMD version of the above, working on 2x2 pixel quads.
template<typename F>
static inline CODE_SSE2 void render_triangle_2x2_sse2(
const TriInfo &tri,
si32 width,si32 height,
const F &f)
{
si32 x_min=tri.x_min,x_max=tri.x_max;
si32 y_min=tri.y_min,y_max=tri.y_max;
width&=-2;
height&=-2;
if(x_max>width) x_max=width;
if(y_max>height) y_max=height;
// Barycentric coordinates.
si32 d0=tri.d[0];
si32 d1=tri.d[1];
si32 d2=tri.d[2];
float w=tri.w;
// Biases, to incorporate fill rules.
si32 b0=tri.b[0];
si32 b1=tri.b[1];
si32 b2=tri.b[2];
// Increments.
si32 dd0dx=tri.ddx[0];
si32 dd1dx=tri.ddx[1];
si32 dd2dx=tri.ddx[2];
si32 dd0dy=tri.ddy[0];
si32 dd1dy=tri.ddy[1];
si32 dd2dy=tri.ddy[2];
simd4i D0{d0,d0+dd0dx,d0+dd0dy,d0+dd0dx+dd0dy};
simd4i D1{d1,d1+dd1dx,d1+dd1dy,d1+dd1dx+dd1dy};
simd4i D2{d2,d2+dd2dx,d2+dd2dy,d2+dd2dx+dd2dy};
simd4i DD0DX=simd4i{2,2,2,2}*dd0dx;
simd4i DD0DY=simd4i{2,2,2,2}*dd0dy;
simd4i DD1DX=simd4i{2,2,2,2}*dd1dx;
simd4i DD1DY=simd4i{2,2,2,2}*dd1dy;
simd4i DD2DX=simd4i{2,2,2,2}*dd2dx;
simd4i DD2DY=simd4i{2,2,2,2}*dd2dy;
// Process pixels in bounding box.
for(int32_t y=y_min;y<y_max;y+=2)
{
simd4i D0X=D0;
simd4i D1X=D1;
simd4i D2X=D2;
for(int32_t x=x_min;x<x_max;x+=2)
{
simd4i M=D0X|D1X|D2X;
si32 S=signs4i(M);
if(S<15)
{
simd4f W0=cvt4if(D0X+b0)*w;
simd4f W1=cvt4if(D1X+b1)*w;
simd4f W2=cvt4if(D2X+b2)*w;
f(x,y,W0,W1,W2,M);
}
D0X+=DD0DX;
D1X+=DD1DX;
D2X+=DD2DX;
}
D0+=DD0DY;
D1+=DD1DY;
D2+=DD2DY;
}
}
//==============================================================================
static void transform_vertices_ref(si32 n,const float *M,const float *src,float *dst)
{
for(si32 i=0;i<n;++i)
mul_mat_vec(M,src+i*4,dst+i*4);
}
static void CODE_SSE2 transform_vertices_sse2(si32 n,const float *M,const float *src,float *dst)
{
simd4f m0{M[ 0],M[ 4],M[ 8],M[12]};
simd4f m1{M[ 1],M[ 5],M[ 9],M[13]};
simd4f m2{M[ 2],M[ 6],M[10],M[14]};
simd4f m3{M[ 3],M[ 7],M[11],M[15]};
for(si32 i=0;i<n;++i)
{
const float *s=src+4*i;
simd4f v=s[0]*m0+s[1]*m1+s[2]*m2+s[3]*m3;
store4f(v,dst+4*i);
}
}
static void render_triangles_ref(const float *L)
{
pixels_touched=0;
pixels_total=0;
pixels_visible=0;
size_t m=model.triangles.size()/3;
TriInfo tri;
const float *dst=transformed.data();
for(size_t i=0;i<m;++i)
{
triangle_setup_ref(
dst+4*model.triangles[3*i+0],
dst+4*model.triangles[3*i+1],
dst+4*model.triangles[3*i+2],
tri);
if(tri.d[3]<=0) continue;
float q0=tri.v[0][3];
float q1=tri.v[1][3];
float q2=tri.v[2][3];
if((bitcast<si32>(q0)|bitcast<si32>(q1)|bitcast<si32>(q2))<0) continue;
const float *C0=model.normals.data()+3*model.triangles[3*i+0];
const float *C1=model.normals.data()+3*model.triangles[3*i+1];
const float *C2=model.normals.data()+3*model.triangles[3*i+2];
render_triangle(
tri,
WIN_W,WIN_H,[&](si32 x,si32 y,float w0,float w1,float w2)->void
{
si32 id=y*WIN_W+x;
float q=q0*w0+q1*w1+q2*w2;
++pixels_total;
if(q>load<float>(depth_buffer+id))
{
++pixels_visible;
float inv_q=1.0f/q;
float v0=w0*inv_q;
float v1=w1*inv_q;
float v2=w2*inv_q;
float nx=C0[0]*v0+C1[0]*v1+C2[0]*v2;
float ny=C0[1]*v0+C1[1]*v1+C2[1]*v2;
float nz=C0[2]*v0+C1[2]*v1+C2[2]*v2;
float d=std::sqrt(nx*nx+ny*ny+nz*nz);
float inv_d=1.0f/d;
nx*=inv_d;
ny*=inv_d;
nz*=inv_d;
float c=L[0]*nx+L[1]*ny+L[2]*nz;
if(!(c>0.0f)) c=0.0f;
if(c>1.0f) c=1.0f;
ui32 color=ui32(int(230.0f*c+25.5f));
color*=0x00010101ul;
color|=0xFF000000ul;
store(q,depth_buffer+id);
store(color,window_buffer+4*id);
}
});
}
pixels_touched=pixels_total;
}
static void CODE_SSE2 render_triangles_sse2(const float *L)
{
si32 mask_count[16]={0};
for(int i=0;i<16;++i) for(int j=0;j<4;++j) mask_count[i]+=!((i>>j)&1);
pixels_touched=0;
pixels_total=0;
pixels_visible=0;
size_t m=model.triangles.size()/3;
TriInfo tri;
const float *dst=transformed.data();
for(size_t i=0;i<m;++i)
{
triangle_setup_sse2(
dst+4*model.triangles[3*i+0],
dst+4*model.triangles[3*i+1],
dst+4*model.triangles[3*i+2],
tri);
if(tri.d[3]<=0) continue;
float q0=tri.v[0][3];
float q1=tri.v[1][3];
float q2=tri.v[2][3];
if((bitcast<si32>(q0)|bitcast<si32>(q1)|bitcast<si32>(q2))<0) continue;
const float *C0=model.normals.data()+3*model.triangles[3*i+0];
const float *C1=model.normals.data()+3*model.triangles[3*i+1];
const float *C2=model.normals.data()+3*model.triangles[3*i+2];
render_triangle_2x2_sse2(
tri,
WIN_W,WIN_H,[&](si32 x,si32 y,simd4f w0,simd4f w1,simd4f w2,simd4i M) CODE_SSE2 ->void
{
si32 id=y*WIN_W+x;
simd4f q=q0*w0+q1*w1+q2*w2;
simd4f depth=(simd4f)load2x64(depth_buffer+id,depth_buffer+WIN_W+id);
pixels_touched+=4;
pixels_total+=mask_count[signs4i(M)];
M=M|(q<depth);
if(signs4i(M)<15)
{
M=(M<simd4i{0,0,0,0});
pixels_visible+=mask_count[signs4i(M)];
simd4f inv_q=rcp4f(q);
simd4f v0=w0*inv_q;
simd4f v1=w1*inv_q;
simd4f v2=w2*inv_q;
simd4f nx=C0[0]*v0+C1[0]*v1+C2[0]*v2;
simd4f ny=C0[1]*v0+C1[1]*v1+C2[1]*v2;
simd4f nz=C0[2]*v0+C1[2]*v1+C2[2]*v2;
simd4f inv_d=rsqrt4f(nx*nx+ny*ny+nz*nz);
nx*=inv_d;
ny*=inv_d;
nz*=inv_d;
simd4f c=L[0]*nx+L[1]*ny+L[2]*nz;
c=min4f(max4f(c,simd4f{0.0f,0.0f,0.0f,0.0f}),simd4f{1.0f,1.0f,1.0f,1.0f});
simd4i color=cvt4fi(230.0f*c+25.5f);
color*=0x00010101;
color|=0xFF000000;
switch(signs4i(M))
{
case 0:
store2x64((simd4i)q,depth_buffer+id,depth_buffer+WIN_W+id);
store2x64(color,window_buffer+4*id,window_buffer+4*WIN_W+4*id);
break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
q=(simd4f)(((simd4i)depth&M)|((simd4i)q&~M));
color=(load2x64(window_buffer+4*id,window_buffer+4*WIN_W+4*id)&M)|(color&~M);
store2x64((simd4i)q,depth_buffer+id,depth_buffer+WIN_W+id);
store2x64(color,window_buffer+4*id,window_buffer+4*WIN_W+4*id);
break;
case 15:
break;
}
}
});
}
}
static void render()
{
(void)setup_triangles_ref;
(void)setup_triangles_sse2;
memset(window_buffer,0,WIN_W*WIN_H*4);
memset(depth_buffer,0,WIN_W*WIN_H*4);
float M[16];
float C[16];
mat_identity(M);
mat_translate(-T[0],-T[1],-T[2],C);
mul_mat_mat(C,M,M);
mat_identity(C);
for(si32 i=0;i<9;++i) C[i+i/3]=R[i];
mul_mat_mat(C,M,M);
mat_frustum(-1.0f,+1.0f,-1.0f,+1.0f,2.0f,1000000.0f,C);
mul_mat_mat(C,M,M);
mat_view(WIN_W,WIN_H,C);
mul_mat_mat(C,M,M);
normalize_vec(L,L);
si32 n=si32(model.vertices.size()/4);
const float *src=model.vertices.data();
float *dst=transformed.data();
ui64 t;
t=get_time();
if(CPU_HAS_SSE2()) transform_vertices_sse2(n,M,src,dst);
else transform_vertices_ref(n,M,src,dst);
t=get_time()-t;
time_transform=float(t)/float(timer_frequency);
t=get_time();
//if(CPU_HAS_SSE2()) setup_triangles_sse2(si32(model.triangles.size()/3),model.triangles.data(),dst,tris.data());
//else setup_triangles_ref(si32(model.triangles.size()/3),model.triangles.data(),dst,tris.data());
t=get_time()-t;
time_triangles=float(t)/float(timer_frequency);
t=get_time();
if(CPU_HAS_SSE2()) render_triangles_sse2(L);
else render_triangles_ref(L);
t=get_time()-t;
time_rasterize=float(t)/float(timer_frequency);
}
//==============================================================================
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
switch(Message)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_KEYDOWN:
kdown[wParam&0xFF]=1;
kprsd[wParam&0xFF]=1;
break;
case WM_KEYUP:
kdown[wParam&0xFF]=0;
break;
case WM_DROPFILES:
{
HDROP hDrop=(HDROP)wParam;
DragQueryFileA(hDrop,0,model_name,sizeof(model_name));
model_name[sizeof(model_name)-1]=0;
loaded=false;
DragFinish(hDrop);
break;
}
default:
return DefWindowProc(hwnd, Message, wParam, lParam);
}
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
(void)hInstance;
(void)hPrevInstance;
(void)lpCmdLine;
(void)nCmdShow;
static const BITMAPINFOHEADER bmih={sizeof(BITMAPINFOHEADER),WIN_W,WIN_H,1,32,BI_RGB,0,0,0,0,0};
WNDCLASSEX wcex={};
wcex.cbSize=sizeof(WNDCLASSEX);
wcex.style=CS_OWNDC;
wcex.lpfnWndProc=WndProc;
wcex.hInstance=hInstance;
wcex.lpszClassName="ObjViewer";
if(!RegisterClassEx(&wcex)) return 1;
RECT rect={0,0,WIN_W,WIN_H};
AdjustWindowRect(&rect,WS_OVERLAPPEDWINDOW&~WS_SIZEBOX,0);
HWND hwnd=CreateWindow("ObjViewer","Obj viewer",
(WS_OVERLAPPEDWINDOW&~WS_SIZEBOX&~WS_MAXIMIZEBOX)|WS_VISIBLE,
si32(CW_USEDEFAULT),si32(CW_USEDEFAULT),rect.right-rect.left,rect.bottom-rect.top,
NULL,NULL,hInstance,NULL);
HDC hdc=GetDC(hwnd);
DragAcceptFiles(hwnd,TRUE);
MSG msg;
snprintf(model_name,sizeof(model_name),"model.obj");
init();
ui64 t=get_time();
ui64 td=t;
double spf=0.0,fps=0.0;
memset(window_buffer,0,WIN_W*WIN_H*4);
quit=false;
while(!quit)
{
if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if(msg.message==WM_QUIT) {quit=true;break;}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
ui64 t0=t;
t=get_time();
spf=spf*(15.0/16.0)+(double(t-t0)/double(timer_frequency))*(1.0/16.0);
if(t-td>timer_frequency/4) {td=t;fps=1.0/spf;}
if(!loaded)
model.load(model_name);
render();
print_text_screen(16,WIN_H-16,0xFF77C077u,"Window resolution: %dx%d",int(WIN_W),int(WIN_H));
print_text_screen(16,WIN_H-32,0xFF77C077u,"Running time: %.1f",double(get_time()-timer_start)/double(timer_frequency));
print_text_screen(16,WIN_H-48,0xFF77C077u,"FPS: %.1f",fps);
print_text_screen(16,WIN_H-64,0xFF77C077u,"F1 - help");
print_text_screen(16,WIN_H-80,0xFF77C077u,"SIMD: %s",(CPU_HAS_SSE2()?"SSE2":"disabled"));
print_text_screen(16,WIN_H-96,0xFF77C077u,"Pixels visible: %d",pixels_visible);
print_text_screen(16,WIN_H-112,0xFF77C077u,"Pixels total: %d [%d]",pixels_total,pixels_touched);
print_text_screen(16,WIN_H-128,0xFF77C077u,"Vertex transform: %.3f ms",1000.0f*time_transform);
print_text_screen(16,WIN_H-142,0xFF77C077u,"Triangle setup: %.3f ms",1000.0f*time_triangles);
print_text_screen(16,WIN_H-158,0xFF77C077u,"Rasterization+shading: %.3f ms",1000.0f*time_rasterize);
print_text_screen(WIN_W-256,WIN_H-16,0xFF77C077u," Model info:");
print_text_screen(WIN_W-256,WIN_H-32,0xFF77C077u,"Vertices: %8d -> %8d",int(model.orig_vertices.size()-1),int(model.vertices.size()/4));
print_text_screen(WIN_W-256,WIN_H-48,0xFF77C077u,"Faces: %8d -> %8d",int(model.faces.size()),int(model.triangles.size()/3));
print_text_screen(WIN_W-256,WIN_H-64,0xFF77C077u,"Dimensions: %.3gx%.3gx%.3g",2.0f*model.extents[0],2.0f*model.extents[1],2.0f*model.extents[2]);
print_text_screen(WIN_W-256,WIN_H-80,0xFF77C077u,"Load time: %.3f ms",1000.0*double(load_time)/double(timer_frequency));
if(show_help)
{
print_text_screen(16,80,0xFF77C077u,"F4: toggle SIMD");
print_text_screen(16,64,0xFF77C077u,"GVBN: light position");
print_text_screen(16,48,0xFF77C077u,"YUIHJK: rotation");
print_text_screen(16,32,0xFF77C077u,"WASDRF: translation");
print_text_screen(16,16,0xFF77C077u,"Esc: quit");
}
if(kprsd[VK_ESCAPE]) {quit=true;break;}
if(kprsd[VK_F1]) {show_help=!show_help;}
if(kprsd[VK_F4]) {allow_simd=!allow_simd;}
float s=0.5f*float(spf)*length_vec(model.extents);
float r=float(spf);
float g=std::sqrt(1.0f-r*r);
if(kdown['W']) {for(si32 i=0;i<3;++i) T[i]-=s*R[6+i];}
if(kdown['S']) {for(si32 i=0;i<3;++i) T[i]+=s*R[6+i];}
if(kdown['A']) {for(si32 i=0;i<3;++i) T[i]-=s*R[0+i];}
if(kdown['D']) {for(si32 i=0;i<3;++i) T[i]+=s*R[0+i];}
if(kdown['R']) {for(si32 i=0;i<3;++i) T[i]+=s*R[3+i];}
if(kdown['F']) {for(si32 i=0;i<3;++i) T[i]-=s*R[3+i];}
if(kdown['G']) {float y=L[1],z=L[2]; L[1]=g*y+r*z; L[2]=-r*y+g*z;}
if(kdown['B']) {float y=L[1],z=L[2]; L[1]=g*y-r*z; L[2]=+r*y+g*z;}
if(kdown['V']) {float x=L[0],z=L[2]; L[0]=g*x-r*z; L[2]=+r*x+g*z;}
if(kdown['N']) {float x=L[0],z=L[2]; L[0]=g*x+r*z; L[2]=-r*x+g*z;}
if(kdown['H'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(-r,0.0f,1.0f,0.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
if(kdown['K'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(+r,0.0f,1.0f,0.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
if(kdown['U'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(-r,1.0f,0.0f,0.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
if(kdown['J'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(+r,1.0f,0.0f,0.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
if(kdown['Y'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(-r,0.0f,0.0f,1.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
if(kdown['I'])
{
float M0[16],M1[16];
mat_identity(M0);
for(si32 i=0;i<9;++i) M0[i+i/3]=R[i];
mat_rotate(+r,0.0f,0.0f,1.0f,M1);
mul_mat_mat(M1,M0,M0);
for(si32 i=0;i<9;++i) R[i]=M0[i+i/3];
}
StretchDIBits(
hdc,
0,0,WIN_W,WIN_H,
0,0,WIN_W,WIN_H,
window_buffer,
(BITMAPINFO*)(&bmih),
DIB_RGB_COLORS,
SRCCOPY);
InvalidateRect(hwnd,NULL,FALSE);
char text[4096];
snprintf(text,sizeof(text),"Obj viewer: [%s]",model_name);
if(!SetWindowTextA(hwnd,text)) break;
for(si32 i=0;i<256;++i) kprsd[i]=false;
Sleep(0);
}
}
quit=true;
ReleaseDC(hwnd,hdc);
DestroyWindow(hwnd);
return 0;
}
Raw
model.obj
# Max2Obj Version 4.0 Mar 10th, 2001
#
# object yad to come ...
#
# gnome from gamedev.ru
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# 48 faces
g
# object Gnome to come ...
#
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g Gnome
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f 62/62/62 55/55/55 61/61/61 60/60/60
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s 245
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f 141/141/141 145/145/145 147/147/147 144/144/144
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f 148/148/148 146/146/146 153/153/153 154/154/154
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f 158/158/158 157/157/157 49/49/49 129/129/129
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f 161/161/161 160/160/160 159/159/159 47/47/47
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f 157/157/157 162/162/162 48/48/48 49/49/49
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f 49/49/49 50/50/50 128/128/128 129/129/129
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f 50/50/50 47/47/47 159/159/159 128/128/128
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f 164/164/164 161/161/161 163/163/163 165/165/165
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f 164/164/164 167/167/167 166/166/166 168/168/168
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f 167/167/167 160/160/160 169/169/169 166/166/166
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f 160/160/160 161/161/161 170/170/170 169/169/169
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f 161/161/161 164/164/164 168/168/168 170/170/170
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f 169/169/169 170/170/170 168/168/168 166/166/166
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f 89/89/89 86/86/86 114/114/114 115/115/115
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f 136/136/136 140/140/140 139/139/139 135/135/135
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f 180/180/180 179/179/179 140/140/140 136/136/136
s 1
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f 182/182/182 56/56/56 74/74/74 181/181/181
s 7973
f 58/58/58 56/56/56 182/182/182 183/183/183
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f 183/183/183 182/182/182 162/162/162 157/157/157
s 28416
f 58/185/58 183/372/183 184/373/184 59/287/59
s 60424
f 183/372/183 157/370/157 158/371/158 184/373/184
s 2
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s 1
f 185/374/185 54/104/54 51/53/51 69/363/69
f 185/374/185 69/363/69 63/360/63 100/366/100
f 148/148/148 143/143/143 144/144/144 147/147/147
f 188/188/188 187/187/187 186/186/186 189/189/189
s 2
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s 12
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s 2
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s 12
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s 384
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s 1
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f 236/236/236 238/238/238 237/237/237 235/235/235
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s 4
f 235/235/235 237/237/237 234/234/234 231/231/231
s 2
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f 172/172/172 232/232/232 240/240/240 171/171/171
s 4
f 232/232/232 233/233/233 239/239/239 240/240/240
s 1
f 171/171/171 240/240/240 239/239/239 174/174/174
s 2
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s 26
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s 1888
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s 1280
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s 14
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s 4
f 86/86/86 87/87/87 116/116/116 114/114/114
s 49
f 82/82/82 83/83/83 80/80/80 78/78/78
s 4
f 83/83/83 85/85/85 79/79/79 80/80/80
s 104
f 243/243/243 82/82/82 93/93/93 244/244/244
s 3369
f 91/91/91 241/241/241 245/245/245 92/92/92
s 2656
f 241/241/241 243/243/243 244/244/244 245/245/245
s 105
f 92/92/92 245/245/245 244/244/244 93/93/93
s 128
f 82/82/82 243/243/243 246/246/246 90/90/90
s 4
f 247/247/247 178/178/178 176/176/176 238/238/238
s 24
f 177/177/177 248/248/248 236/236/236 175/175/175
s 96
f 248/248/248 247/247/247 238/238/238 236/236/236
s 2
f 179/179/179 91/91/91 120/120/120 140/140/140
f 60/60/60 241/241/241 91/91/91 179/179/179
s 1
f 249/249/249 181/181/181 178/178/178 247/247/247
s 17
f 74/74/74 71/71/71 248/248/248 177/177/177
s 64
f 71/71/71 249/249/249 247/247/247 248/248/248
s 1
f 250/250/250 182/182/182 181/181/181 249/249/249
s 64
f 72/72/72 250/250/250 249/249/249 71/71/71
s 4
f 60/77/60 64/113/64 113/428/113 77/424/77
s 29184
f 72/72/72 75/75/75 251/251/251 250/250/250
s 8196
f 182/182/182 250/250/250 193/193/193 162/162/162
s 44036
f 250/250/250 251/251/251 191/191/191 193/193/193
s 66160
f 75/422/75 77/424/77 252/430/252 251/429/251
s 250624
f 251/251/251 252/252/252 190/190/190 191/191/191
s 314
f 253/253/253 76/76/76 72/72/72 73/73/73
s 1048
f 253/253/253 73/73/73 56/56/56 57/57/57
s 3840
f 253/253/253 57/57/57 55/55/55 62/62/62
s 2561
f 253/253/253 62/62/62 60/60/60 76/76/76
s 1
f 256/256/256 255/255/255 254/254/254 257/257/257
s 2
f 255/255/255 259/259/259 258/258/258 254/254/254
s 1
f 259/259/259 261/261/261 260/260/260 258/258/258
s 4
f 254/254/254 258/258/258 260/260/260 257/257/257
s 1
f 261/261/261 259/259/259 262/262/262 263/263/263
f 255/255/255 256/256/256 264/264/264 265/265/265
s 60
f 267/267/267 266/266/266 130/130/130 96/96/96
s 36
f 266/266/266 158/158/158 129/129/129 130/130/130
s 69
f 269/269/269 268/268/268 94/94/94 270/270/270
s 4
f 160/160/160 269/269/269 270/270/270 159/159/159
s 386
f 271/271/271 267/267/267 96/96/96 97/97/97
s 17
f 130/130/130 127/127/127 95/95/95 96/96/96
s 65
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s 1
f 128/128/128 159/159/159 270/270/270 127/127/127
s 4
f 274/274/274 273/273/273 272/272/272 275/275/275
s 2
f 273/273/273 268/268/268 276/276/276 272/272/272
s 8
f 268/268/268 269/269/269 277/277/277 276/276/276
s 2
f 269/269/269 274/274/274 275/275/275 277/277/277
s 1
f 276/276/276 277/277/277 275/275/275 272/272/272
s 2
f 268/268/268 273/273/273 278/278/278 279/279/279
s 4
f 273/273/273 274/274/274 259/259/259 255/255/255
s 1
f 282/439/282 281/438/281 280/341/280 283/440/283
f 134/281/134 131/280/131 281/438/281 282/439/282
s 3
f 110/110/110 284/284/284 132/132/132 133/133/133
s 86
f 101/101/101 285/285/285 284/284/284 110/110/110
s 8
f 59/287/59 104/368/104 67/361/67 55/184/55
s 3669
f 103/103/103 286/286/286 285/285/285 101/101/101
s 7425
f 286/286/286 267/267/267 271/271/271 285/285/285
s 513
f 59/287/59 184/373/184 287/378/287 104/368/104
s 529
f 104/368/104 287/378/287 286/377/286 103/367/103
s 513
f 184/373/184 158/371/158 266/375/266 287/378/287
s 2577
f 287/378/287 266/375/266 267/376/267 286/377/286
s 2
f 185/374/185 100/366/100 68/362/68 106/369/106
s 3
f 185/374/185 106/369/106 98/364/98 54/104/54
s 1
f 290/290/290 289/289/289 288/288/288 291/291/291
f 261/261/261 256/256/256 257/257/257 260/260/260
f 289/289/289 290/290/290 292/292/292 293/293/293
f 296/296/296 295/295/295 294/294/294 297/297/297
s 2
f 290/290/290 261/261/261 263/263/263 292/292/292
s 12
f 259/259/259 296/296/296 297/297/297 262/262/262
s 2
f 256/256/256 289/289/289 293/293/293 264/264/264
s 12
f 295/295/295 255/255/255 265/265/265 294/294/294
s 1
f 297/297/297 294/294/294 293/293/293 292/292/292
s 6
f 262/262/262 297/297/297 292/292/292 263/263/263
s 10
f 294/294/294 265/265/265 264/264/264 293/293/293
s 479
f 300/300/300 299/299/299 298/298/298 124/124/124
s 560
f 190/190/190 300/300/300 124/124/124 125/125/125
s 15378
f 299/299/299 302/302/302 301/301/301 298/298/298
s 8208
f 302/302/302 271/271/271 97/97/97 301/301/301
s 33
f 268/268/268 304/304/304 303/303/303 94/94/94
s 6
f 304/304/304 306/306/306 305/305/305 303/303/303
s 2
f 306/306/306 197/197/197 198/198/198 305/305/305
s 114693
f 124/124/124 298/298/298 307/307/307 123/123/123
s 231424
f 301/301/301 303/303/303 307/307/307 298/298/298
s 32801
f 97/97/97 94/94/94 303/303/303 301/301/301
s 16388
f 305/305/305 123/123/123 307/307/307 303/303/303
s 4
f 198/198/198 126/126/126 123/123/123 305/305/305
s 18
f 273/273/273 309/309/309 308/308/308 278/278/278
s 448
f 309/309/309 304/304/304 310/310/310 308/308/308
s 8
f 304/304/304 268/268/268 279/279/279 310/310/310
s 1
f 310/310/310 279/279/279 278/278/278 308/308/308
s 32
f 295/295/295 296/296/296 311/311/311 312/312/312
s 16
f 296/296/296 314/314/314 313/313/313 311/311/311
s 1
f 314/314/314 309/309/309 315/315/315 313/313/313
s 8080
f 309/309/309 295/295/295 312/312/312 315/315/315
s 2
f 313/313/313 315/315/315 312/312/312 311/311/311
s 8
f 309/309/309 314/314/314 316/316/316 317/317/317
s 16
f 314/314/314 306/306/306 318/318/318 316/316/316
s 256
f 306/306/306 304/304/304 319/319/319 318/318/318
s 5184
f 304/304/304 309/309/309 317/317/317 319/319/319
s 1
f 318/318/318 319/319/319 317/317/317 316/316/316
s 9
f 212/212/212 321/321/321 320/320/320 214/214/214
s 25
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s 97
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s 122
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s 1
f 325/325/325 324/324/324 323/323/323 326/326/326
s 2
f 324/324/324 328/328/328 327/327/327 323/323/323
s 1
f 328/328/328 330/330/330 329/329/329 327/327/327
s 2
f 330/330/330 325/325/325 326/326/326 329/329/329
s 4
f 327/327/327 329/329/329 326/326/326 323/323/323
s 1
f 332/332/332 331/331/331 324/324/324 325/325/325
s 2
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s 1
f 291/291/291 288/288/288 330/330/330 328/328/328
s 2
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s 1
f 334/334/334 333/333/333 331/331/331 332/332/332
s 2
f 333/333/333 290/290/290 291/291/291 331/331/331
f 289/289/289 334/334/334 332/332/332 288/288/288
f 289/289/289 256/256/256 335/335/335 334/334/334
s 1
f 256/256/256 261/261/261 336/336/336 335/335/335
s 2
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s 1
f 336/336/336 333/333/333 334/334/334 335/335/335
s 2562
f 309/309/309 273/273/273 255/255/255 295/295/295
s 4
f 274/274/274 314/314/314 296/296/296 259/259/259
f 269/269/269 306/306/306 314/314/314 274/274/274
s 1
f 339/343/339 338/340/338 337/339/337 340/345/340
s 14
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s 1
f 342/433/342 344/435/344 343/434/343 341/346/341
s 14
f 344/435/344 339/343/339 340/345/340 343/434/343
s 16
f 341/346/341 343/434/343 340/345/340 337/339/337
f 338/340/338 339/343/339 345/436/345 346/437/346
s 8
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s 32
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s 1
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s 108
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s 44
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s 768
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s 3328
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s 2176
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s 68
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s 193
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s 684
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s 12848
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s 129936
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s 65588
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s 443392
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s 1
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s 256
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s 2
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s 393217
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s 272
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s 96
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s 64
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s 524288
f 117/117/117 180/180/180 136/136/136 119/119/119
f 347/347/347 64/64/64 180/180/180 117/117/117
s 272
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s 33
f 109/109/109 110/110/110 133/133/133 353/353/353
s 1
f 284/284/284 355/355/355 354/354/354 132/132/132
s 256
f 356/356/356 108/108/108 109/109/109 355/355/355
s 1
f 285/285/285 356/356/356 355/355/355 284/284/284
s 2
f 160/160/160 197/197/197 306/306/306 269/269/269
s 377344
f 108/108/108 356/356/356 357/357/357 112/112/112
s 512
f 285/285/285 271/271/271 302/302/302 356/356/356
s 791168
f 356/356/356 302/302/302 299/299/299 357/357/357
s 3145801
f 77/424/77 113/428/113 358/432/358 252/430/252
s 1081456
f 113/428/113 112/427/112 357/431/357 358/432/358
s 14680616
f 252/252/252 358/358/358 300/300/300 190/190/190
s 33098052
f 358/358/358 357/357/357 299/299/299 300/300/300
s 1
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s 33
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s 236
f 359/359/359 102/102/102 101/101/101 107/107/107
s 1262
f 359/359/359 107/107/107 108/108/108 111/111/111
s 1
f 64/64/64 60/60/60 179/179/179 180/180/180
f 362/381/362 361/380/361 360/379/360 363/382/363
f 364/383/364 362/381/362 363/382/363 365/384/365
f 366/385/366 364/383/364 365/384/365 367/386/367
s 2
f 368/387/368 366/385/366 367/386/367 369/388/369
s 1
f 370/389/370 368/387/368 369/388/369 371/390/371
f 372/391/372 370/389/370 371/390/371 373/392/373
f 374/393/374 372/391/372 373/392/373 375/394/375
f 376/395/376 374/393/374 375/394/375 377/396/377
f 378/397/378 376/395/376 377/396/377 379/398/379
s 14
f 380/399/380 378/397/378 379/398/379 381/400/381
s 2
f 384/403/384 383/402/383 382/401/382 385/404/385
f 386/405/386 384/403/384 385/404/385 387/406/387
s 1
f 361/380/361 386/405/386 387/406/387 360/379/360
s 115
f 383/402/383 389/408/389 388/407/388 390/409/390
s 4
f 382/401/382 383/402/383 390/409/390 391/410/391
s 1
f 392/411/392 382/401/382 391/410/391 393/412/393
s 8100
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s 24656
f 389/408/389 380/399/380 395/414/395 388/407/388
s 102540
f 381/400/381 392/411/392 393/412/393 394/413/394
s 8
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f 400/419/400 398/417/398 399/418/399 401/420/401
s 131616
f 395/414/395 394/413/394 396/415/396 397/416/397
s 57472
f 388/407/388 395/414/395 397/416/397 398/417/398
s 199684
f 394/413/394 393/412/393 399/418/399 396/415/396
s 32899
f 390/409/390 388/407/388 398/417/398 400/419/400
s 4
f 391/410/391 390/409/390 400/419/400 401/420/401
s 1
f 393/412/393 391/410/391 401/420/401 399/418/399
f 48/48/48 47/47/47 49/49/49
s 6
f 49/49/49 47/47/47 50/50/50
s 1
f 52/54/52 51/53/51 53/59/53
f 51/53/51 54/104/54 53/59/53
f 56/56/56 55/55/55 57/57/57
s 2
f 58/58/58 55/55/55 56/56/56
f 59/287/59 55/184/55 58/185/58
s 12
f 61/61/61 55/55/55 63/63/63
s 3
f 66/66/66 68/68/68 67/67/67
s 7
f 69/69/69 51/51/51 70/70/70
s 3
f 72/72/72 71/71/71 73/73/73
s 5
f 73/73/73 71/71/71 74/74/74
s 30
f 56/56/56 73/73/73 74/74/74
s 245
f 76/423/76 75/422/75 72/421/72
s 1
f 79/79/79 78/78/78 80/80/80
s 3
f 82/82/82 81/81/81 83/83/83
s 0
f 81/81/81 84/84/84 83/83/83
s 4
f 84/84/84 85/85/85 83/83/83
f 86/86/86 84/84/84 87/87/87
f 81/81/81 88/88/88 89/89/89
s 59
f 92/92/92 93/93/93 82/82/82
s 1
f 95/95/95 94/94/94 96/96/96
s 2
f 96/96/96 94/94/94 97/97/97
s 1
f 54/104/54 98/364/98 53/59/53
f 98/364/98 99/365/99 53/59/53
f 67/67/67 68/68/68 100/100/100
s 6
f 67/67/67 101/101/101 102/102/102
s 8
f 103/103/103 101/101/101 67/67/67
f 104/368/104 103/367/103 67/361/67
s 3
f 99/365/99 52/54/52 53/59/53
s 5
f 105/105/105 98/98/98 106/106/106
s 3
f 108/108/108 107/107/107 109/109/109
s 1
f 107/107/107 110/110/110 109/109/109
s 13
f 101/101/101 110/110/110 107/107/107
s 56
f 112/427/112 113/428/113 64/113/64
s 1
f 115/115/115 114/114/114 116/116/116
s 0
f 84/84/84 81/81/81 87/87/87
s 3
f 81/81/81 89/89/89 87/87/87
s 1
f 119/119/119 120/120/120 91/91/91
s 510
f 89/89/89 117/117/117 86/86/86
# 358 faces
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