void DrawVolumesLines()
{
TStreamsDesc streams;
streams.AddStream(TStream::Vertex, TDataType::Float, 3, prim_lines_vertex);
render->Draw(streams, TPrimitive::Lines, prim_lines_vertex_count);
streams.Clear();
}
void DrawVolumes()
{
TStreamsDesc streams;
streams.AddStream(TStream::Vertex, TDataType::Float, 3, prim_vertex);
streams.AddStream(TStream::Index, TDataType::UInt, 1, prim_index);
render->Draw(streams, TPrimitive::Triangles, prim_index_count);
streams.Clear();
}
static void draw_scene(GLFWwindow* window, double tt)
{
balu_time.Tick();
if (balu_time.ShowFPS())
{
char buf[1000];
sprintf_s(buf, "1 - Nearest 2 - Billenear %7.1f FPS", balu_time.GetFPS());
glfwSetWindowTitle(window, buf);
}
cam->UpdateView();
CheckGLError();
{
//render->Set.ClearColor(0, 0, 1);
render->Clear(1, 1);
render->Set.Projection(perspective_matrix);
render->Set.ModelView(cam->GetView());
TMatrix<float, 4> inv_mvp;
inv_mvp = perspective_matrix*cam->GetView();
inv_mvp.Invert();
{
render->Blend.Enable(false);
render->Set.Color(1, 1, 0.7);
//DrawVolumesLines();
render->Set.Color(0.3, 0.9, 0.2, 0.7);
//DrawVolumes();
}
//render->Clear(1, 1);
render->Set.Projection(TMatrix<float, 4>::GetIdentity());
render->Set.ModelView(TMatrix<float, 4>::GetIdentity());
if (true)
{
float pixel_size_x = 2.0 / (viewport_width);
float pixel_size_y = 2.0 / (viewport_height);
//float size = 0.9;
//float step = 0.002;
//render->Set.PointSize(1);
//render->Set.PointSmooth(true);
//glBegin(GL_POINTS);
//#pragma omp parallel for
for (int x = 1; x < viewport_width-1; x += 1)
{
//break;
for (int y = 1 ; y < viewport_height-1; y += 1)
{
float i = x*pixel_size_x - 1;
float j = y*pixel_size_y - 1;
TVec4 v0(i, j, 0, 1);
TVec4 v1(i, j, 1, 1);
v0 = inv_mvp*v0;
v1 = inv_mvp*v1;
TRay<float, 3> ray;
ray.pos = v0.GetHomogen();
ray.dir = v1.GetHomogen() - ray.pos;
ray.dir.Normalize();
//ray.dir = -ray.dir;
//render->Set.Color(0, 0, 1, 1);
//TVec3 color(0, 0, 1);
TVec<unsigned char, 4> color(0, 0, 1);
color = TVec<unsigned char, 4>(0, 0.2 * 255, 0.2 * 255, 255);
for (int k = 0; k < volumes.size(); k++)
{
//float t, t0, t1, t2, t3;
//TVec3 n, n0, n1;
//bool c0 = volumes[k]->CollideWith(ray);
//bool c1 = volumes[k]->CollideWith(ray, t, n);
//bool c2 = volumes[k]->CollideWith(ray, t0, n0, t1, n1);
//bool c3 = volumes[k]->CollideWith(ray, t2, t3);
TRayCollisionInfo<float, 3> info, info2;
//bool c2 = volumes[k]->RayCollide(ray);
//bool c1 = volumes[k]->RayCollide(ray, info);
//bool c1 = volumes[k]->SegmentCollide(TSegment<float, 3>(ray.pos, ray.pos + ray.dir * 1000));
//bool c1 = volumes[k]->SegmentCollide(TSegment<float, 3>(ray.pos + ray.dir * 40, ray.pos));
//bool c1 = volumes[k]->SegmentCollide(TSegment<float, 3>(ray.pos, ray.pos + ray.dir * 30), info);
//bool c1 = volumes[k]->LineCollide(TLine<float, 3>(ray.pos + ray.dir * 40, ray.pos));
bool c1 = volumes[k]->LineCollide(TLine<float, 3>(ray.pos, ray.pos + ray.dir * 40), info);
//assert(c0 == c1);
//if (c2)
//{
// color = TVec<unsigned char, 4>(1*255, 1*255, 0, 255);
//}else
// color = TVec<unsigned char, 4>(0, 0.2*255, 0, 255);
if (c1)
{
float col = 1;
if (info.have_in)
col = abs(Clamp<float>(0, 1, -info.in_normal*ray.dir));
else if (info.have_out)
col = abs(Clamp<float>(0, 1, info.out_normal*ray.dir));
//else assert(false);
color = TVec<unsigned char,4>(0, col*255, 0,255);
//render->Set.Color(0, col, 0, 1);
}
else
{
//color = TVec<unsigned char, 4>(0, 0.2 * 255, 0.2 * 255,255);
//render->Set.Color(0, 0.2, 0.2, 1);
//break;
}
//if (c0&&c1&&c2&&c3)
//{
// //render->Set.Color(0,n*TVec3(0.5,1,1).GetNormalized(),0,255);
// render->Set.Color(0, 1, 0, 1);
// break;
//}
//else if ((!c0) && (!c1) && (!c2) && (!c3))
//{
// render->Set.Color(0, 0.2, 0.2, 1);
//}
//else
//{
// render->Set.Color(1, 0, 0, 1);
// break;
//}
}
//glVertex3fv((GLfloat*)&(ray.pos + ray.dir));
//glColor3fv((GLfloat*)&color);
//glVertex2fv((GLfloat*)&(TVec<float, 2>(i,j)));
raytracer_color_buffer[y*viewport_width + x] = color;
}
}
glRasterPos2d(-1, -1);
glDrawPixels(viewport_width, viewport_height, GL_RGBA, GL_UNSIGNED_BYTE, (GLfloat*)&raytracer_color_buffer[0]);
//glEnd();
//render->Set.PointSmooth(false);
//render->Set.PointSize(1);
}
render->Blend.Enable(false);
}
if (false)
{
TStreamsDesc streams;
TGeomLine<float, 3> line[3];
TGeomLine<unsigned char, 4> color[3];
line[0][0] = TVec3(0, 0, 0);
line[0][1] = TVec3(1, 0, 0);
color[0].Set(TVec<unsigned char, 4>(255, 0, 0, 255));
line[1][0] = TVec3(0, 0, 0);
line[1][1] = TVec3(0, 1, 0);
color[1].Set(TVec<unsigned char, 4>(0, 255, 0, 255));
line[2][0] = TVec3(0, 0, 0);
line[2][1] = TVec3(0, 0, 1);
color[2].Set(TVec<unsigned char, 4>(0, 0, 255, 255));
streams.AddStream(TStream::Vertex, TDataType::Float, 3, &line);
streams.AddStream(TStream::Color, TDataType::UByte, 4, &color);
render->Draw(streams, TPrimitive::Lines, 6);
streams.Clear();
render->Set.Color(1, 1, 1);
}
}