add MSVC compiler support, make it default for Windows
new header file simd.h for SSE abstraction and helpers
add mselect pseudo instruction for common or(and(...), andnot(...))
replace many SSE intrinsics with new names
new MemoryPool class (mempool.h) for faster KdNode allocation
remove setMaxDepth() from Octree and KdTree, make max_depth const,
it should be defined in constructor and never changed, change after
building tree would cause error in traversal
modify DefaultSampler to generate nice 2x2 packets of samples for packet tracing
optimize Box and BBox::intersect_packet
add precomputed invdir attribute to RayPacket
scons build system:
check for pthread library on Windows
check for SDL
generate include/config.h with variables detected by scons configuration
move auxiliary files to build/
add sanity checks
add writable operator[] to Vector
#include "raytracer.h"
#include "octree.h"
#include "common_sdl.h"
Camera cam;
Light light(Vector(-2.0f, 10.0f, -2.0f), Colour(0.9f, 0.9f, 0.9f));
Float lx, ly, lz, cf;
void update_callback(Float*)
{
if (lx != 0.0f)
light.pos.x += lx;
if (ly != 0.0f)
light.pos.y += ly;
if (lz != 0.0f)
light.pos.z += lz;
if (cf != 0.0f)
cam.setF(cam.getF() + cf);
}
void key_callback(int key, int down)
{
switch (key)
{
case SDLK_r:
lx = -0.1f * down;
break;
case SDLK_t:
lx = +0.1f * down;
break;
case SDLK_f:
ly = -0.1f * down;
break;
case SDLK_g:
ly = +0.1f * down;
break;
case SDLK_v:
lz = -0.1f * down;
break;
case SDLK_b:
lz = +0.1f * down;
break;
case SDLK_z:
cf = -0.02f * down;
break;
case SDLK_x:
cf = +0.02f * down;
break;
}
}
int main(int argc, char **argv)
{
Raytracer rt;
Octree top;
rt.setTop(&top);
rt.addLight(&light);
//Light light2;
//light2.colour = Colour(0.7, 0.3, 0.6);
//rt.addLight(&light2);
Material mat0a(Colour(0.7, 0.7, 0.7));
mat0a. setReflectivity(0.0);
Box box(Vector(-10.0, -1.2, -20.0), Vector(10.0, -1.0, 0.0), &mat0a);
rt.addShape(&box);
Material mat0b(Colour(0.1, 0.7, 0.8));
mat0b.setReflectivity(0.7);
Box box2(Vector(-10.0, -1.2, -20.0), Vector(10.0, 10.0, -20.2), &mat0b);
rt.addShape(&box2);
Material mat1(Colour(1.0, 0.0, 0.0));
Sphere bigsphere(Vector(3.0, 2.0, -7.0), 3.0, &mat1);
rt.addShape(&bigsphere);
Material mat2(Colour(0.0, 1.0, 0.0));
Sphere smallsphere(Vector(-5.5, 1.5, -8.0), 2.0, &mat2);
rt.addShape(&smallsphere);
Material mat3(Colour(0.0, 0.0, 1.0));
mat3.setReflectivity(0.1);
mat3.setTransmissivity(0.8, 1.5);
Sphere tinysphere(Vector(-1.2, 0.0, -2.0), 0.7, &mat3);
rt.addShape(&tinysphere);
top.optimize();
cam.setEye(Vector(-2.28908f, 4.30992f, 12.3051f));
cam.setp(Vector(0.0988566f, -0.139543f, -0.985269f));
cam.setu(Vector(-0.995004f, 0.0f, -0.0998334f));
cam.setv(Vector(0.0139311f, 0.990216f, -0.138846f));
rt.setCamera(&cam);
w = 800;
h = 600;
/* run interactive mode */
loop_sdl(rt, cam, update_callback, key_callback);
/* render image */
if (argc == 2 && !strcmp(argv[1], "-r"))
{
pyrit_verbosity = 2;
DefaultSampler sampler(w, h);
sampler.setOversample(2);
rt.setSampler(&sampler);
rt.render();
sampler.getPixmap().writePNG("spheres_shadow.png");
}
return 0;
}