void display(void)
{
glClear (GL_COLOR_BUFFER_BIT);
glColor3f (1.0, 1.0, 1.0);
glLoadIdentity ();
glColor3f (1.0, 1.0, 1.0);
draw_triangle ();
glEnable (GL_LINE_STIPPLE);
glLineStipple (1, 0xF0F0);
glLoadIdentity ();
glTranslatef (-20.0, 0.0, 0.0);
draw_triangle ();
glLineStipple (1, 0xF00F);
glLoadIdentity ();
glScalef (1.5, 0.5, 1.0);
draw_triangle ();
glLineStipple (1, 0x8888);
glLoadIdentity ();
glRotatef (90.0, 0.0, 0.0, 1.0);
draw_triangle ();
glDisable (GL_LINE_STIPPLE);
glFlush ();
}
/*
Callback function for display.
*/
void display(void) {
GLint a[] = {0, 0, 20},
b[] = {10, 10, 10},
c[] = {0, 0, 0},
d[] = {10, 0, 10};
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0, 0.0, 0.0);
draw_triangle(a, b, c);
glColor3f(0.0, 1.0, 0.0);
draw_triangle(a, b, d);
glColor3f(0.0, 0.0, 1.0);
draw_triangle(a, c, d);
glColor3f(0.5, 0.5, 0.5);
draw_triangle(b, c, d);
glColor3f(1.0, 0.0, 0.0);
glBegin(GL_LINES);
glVertex3f(0,0,0);
glVertex3f(20,0,0);
glEnd();
glColor3f(0.0, 1.0, 0.0);
glBegin(GL_LINES);
glVertex3f(0,0,0);
glVertex3f(0,20,0);
glEnd();
glColor3f(0.0, 0.0, 1.0);
glBegin(GL_LINES);
glVertex3f(0,0,0);
glVertex3f(0,0,20);
glEnd();
glutSwapBuffers();
}
void Lesson_3_2::draw()
{
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glLoadIdentity();
glColor3f(1.0,1.0,1.0);
draw_triangle();
glEnable(GL_LINE_STIPPLE);
glLineStipple(1,0xF0F0);
glLoadIdentity();
glTranslatef(-2.0,0.0,0.0);
draw_triangle();
glLineStipple(1,0xF00F);
glLoadIdentity();
glScalef(1.5,0.5,1.0);
draw_triangle();
glLineStipple(1,0x8888);
glLoadIdentity();
glRotatef(90.0,0.0,0.0,1.0);
draw_triangle();
glDisable(GL_LINE_STIPPLE);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
void display(UGWindow uwin)
{
glClear (GL_COLOR_BUFFER_BIT);
glColor4f (1.0, 1.0, 1.0, 1.0);
glLoadIdentity ();
glColor4f (1.0, 1.0, 1.0, 1.0);
draw_triangle ();
/*glEnable (GL_LINE_STIPPLE);*/
/*glLineStipple (1, 0xF0F0);*/
glColor4f(1.0f, 0.f, 0.f, 1.f);
glLoadIdentity ();
glTranslatef (-20.0, 0.0, 0.0);
draw_triangle ();
/*glLineStipple (1, 0xF00F);*/
glColor4f(0.0f, 1.f, 0.f, 1.f);
glLoadIdentity ();
glScalef (1.5, 0.5, 1.0);
draw_triangle ();
/*glLineStipple (1, 0x8888);*/
glColor4f(0.0f, 0.f, 1.f, 1.f);
glLoadIdentity ();
glRotatef (90.0, 0.0, 0.0, 1.0);
draw_triangle ();
/*glDisable (GL_LINE_STIPPLE);*/
glFlush ();
ugSwapBuffers(uwin);
}
//draw cylinder based on two circles and multiple triangles
void draw_cylinder (float baser, float topr, float h, int slices, float color[3],bool center,glm::mat4 M )
{
glPushMatrix();
glMultMatrixf(&M[0][0]);
if(center) glTranslatef(0,0,h/2);
glTranslatef(0,0,h/2);
draw_circle(topr,color);
glTranslatef(0,0,-h);
draw_circle(baser,color);
glTranslatef(0,0,h/2);
for (int i = 0; i < slices; ++i)
{
//sida = 360/slices
draw_triangle(baser*cos(i*2*PI/slices),baser*sin(i*2*PI/slices),-h/2,
baser*cos((i+1)*2*PI/slices),baser*sin((i+1)*2*PI/slices),-h/2,
topr*cos(i*2*PI/slices),topr*sin(i*2*PI/slices),h/2);
draw_triangle(topr*cos(i*2*PI/slices),topr*sin(i*2*PI/slices),h/2,
topr*cos((i+1)*2*PI/slices),topr*sin((i+1)*2*PI/slices),h/2,
baser*cos((i+1)*2*PI/slices),baser*sin((i+1)*2*PI/slices),-h/2);
}
//draw_triangle(base,-1,-h/2, -1,-1,-h/2, -1,1,-h/2);
glPopMatrix();
}
static void draw_axes_directions()
{
struct Color col;
col.r = 0.0;
col.g = 0.5;
col.b = 0.0;
draw_triangle(x_axis_direction_vert, &col);
draw_triangle(y_axis_direction_vert, &col);
}
void draw_sort_trangle( char *filename )
{
FILE *out ;
Trangle *Ptr_tmp;
int i,j;
out = fopen( filename ,"w");
Ptr_tmp = start_node;
for (i =0 ; i < trangle_number; i++ )
{
Ptr_tmp = search_min_z();
draw_triangle(Ptr_tmp->node0->x,Ptr_tmp->node0->y,Ptr_tmp->node0->z,
Ptr_tmp->node1->x,Ptr_tmp->node1->y,Ptr_tmp->node1->z,
Ptr_tmp->node2->x,Ptr_tmp->node2->y,Ptr_tmp->node2->z);
//Ptr_tmp = Ptr_tmp->next;
}
fprintf( out , "P3\n" );
fprintf( out , "800 600\n" );
fprintf( out , "255\n" );
for(j=0;j<600;j++)
{
for(i=0;i<800;i++)
{
fprintf(out,"%d %d %d ",screen_buffer[j][i].R,screen_buffer[j][i].G,screen_buffer[j][i].B);
}
}
fclose(out);
}
void rasterizer::draw_triangles()
{
const auto& desc = state_->get_desc();
if (desc.fm == fill_wireframe) {
draw_lines();
} else if (desc.fm == fill_solid) {
if (prim_vert_cnt_ < 3) {
draw_lines();
return;
}
//draw_lines();
assert(prim_vert_cnt_ == 3);
bool have_color = !colors_.empty();
for (size_t index = 0; index < indices_.size(); ) {
const auto& v0 = wvp_[indices_[index]];
const auto& v1 = wvp_[indices_[index + 1]];
const auto& v2 = wvp_[indices_[index + 2]];
const color_rgba8* c0 = &color_rgba8::black;
const color_rgba8* c1 = &color_rgba8::black;
const color_rgba8* c2 = &color_rgba8::black;
if (have_color) {
c0 = &colors_[indices_[index]];
c1 = &colors_[indices_[index + 1]];
c2 = &colors_[indices_[index + 2]];
}
draw_triangle(v0.x, v0.y, v1.x, v1.y, v2.x, v2.y, *c0, *c1, *c2);
index += prim_vert_cnt_;
}
}
}
void TestGame::engine_render() {
buffer_clear();
static float rot = 0;
rot += PI / 120;
if (rot > 4 * PI)
rot -= 4 * PI;
camera_.x = (float)sin(rot) * 2.5f;
camera_.y = -0.3f;
camera_.z = (float)cos(rot) * 2.5f;
Matrix4 viewMatrix = matrix_look_at(camera_, Vector3(0, 0, 0), vector_up());
Matrix4 projectionMatrix = matrix_perspective(0.1f,
((float)ENGINE_WIDTH) / ENGINE_HEIGHT, 0.01f, 1.0f);
for (int i = 0; i < meshes_count_; i++) {
Matrix4 transform = meshes_[i].world * viewMatrix * projectionMatrix;
for (int j = 0; j < meshes_[i].face_count; j++)
draw_triangle(
project(meshes_[i].vertices[meshes_[i].faces[j].a], transform),
project(meshes_[i].vertices[meshes_[i].faces[j].b], transform),
project(meshes_[i].vertices[meshes_[i].faces[j].c], transform),
meshes_[i].texture);
}
}
/***********************************
FUNCTION: draw_house
ARGS: none
RETURN: none
DOES: helper build function;
defines a hollow cube with a bottomless pyramid as rooftop
************************************/
void draw_house()
{
draw_triangle(vertices_house,0,1,2,RED);
draw_triangle(vertices_house,0,2,3,GREEN);
draw_triangle(vertices_house,0,3,4,WHITE);
draw_triangle(vertices_house,0,4,1,GREY);
draw_quad(vertices_house,2,1,5,6, BLUE);
draw_triangle(vertices_house,2,6,3, CYAN);
draw_triangle(vertices_house,3,6,7, CYAN);
draw_triangle(vertices_house,3,7,8, YELLOW);
draw_triangle(vertices_house,8,3,4, YELLOW);
draw_triangle(vertices_house,4,8,1, MAGENTA);
draw_triangle(vertices_house,1,8,5, MAGENTA);
}
static void draw_bumper()
{
struct Color col;
col.r = 0.0;
col.g = 0.0;
col.b = 0.0;
draw_triangle(robot_measures.vert_bumper, &col);
}
void draw_figure(IFS_DATA* ifs_data)
{
int i;
for (i=0; i<ifs_data->numTriangles; ++i)
{
draw_triangle(ifs_data,i);
}
}
void ShZshapeManager::draw_shape(const char* content)
{
if (content == "cube")
{
draw_cube();
}
if (content == "cylinder")
{
draw_cylinder();
}
if (content == "pipe")
{
draw_pipe();
}
if (content == "cone")
{
draw_cone();
}
if (content == "circle")
{
draw_circle();
}
if (content == "ring")
{
draw_ring();
}
if (content == "pyramid")
{
draw_pyramid();
}
if (content == "triangle")
{
draw_triangle();
}
if (content == "rectangle")
{
draw_rectangle();
}
if (content == "polygon")
{
draw_polygon();
}
if (content == "multigonalStar")
{
draw_multigonalStar();
}
}
/*TODO: add bottom and top face triangles*/
void draw_cube_brute()
{
draw_triangle(vertices_cube_brute, 4,5,1,BLUE);
draw_triangle(vertices_cube_brute, 0,4,1,BLUE);
draw_triangle(vertices_cube_brute, 5,6,2,CYAN);
draw_triangle(vertices_cube_brute, 1,5,2,CYAN);
draw_triangle(vertices_cube_brute, 3,2,6,YELLOW);
draw_triangle(vertices_cube_brute, 7,3,6,YELLOW);
draw_triangle(vertices_cube_brute, 0,3,7,MAGENTA);
draw_triangle(vertices_cube_brute, 4,0,7,MAGENTA);
}
static void
draw(NVGcontext *nvg, struct gui_command_queue *queue, int width, int height)
{
const struct gui_command *cmd;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_TEXTURE_2D);
nvgBeginFrame(nvg, width, height, ((float)width/(float)height));
gui_foreach_command(cmd, queue) {
switch (cmd->type) {
case GUI_COMMAND_NOP: break;
case GUI_COMMAND_SCISSOR: {
const struct gui_command_scissor *s = gui_command(scissor, cmd);
nvgScissor(nvg, s->x, s->y, s->w, s->h);
} break;
case GUI_COMMAND_LINE: {
const struct gui_command_line *l = gui_command(line, cmd);
draw_line(nvg, l->begin.x, l->begin.y, l->end.x, l->end.y, l->color);
} break;
case GUI_COMMAND_RECT: {
const struct gui_command_rect *r = gui_command(rect, cmd);
draw_rect(nvg, r->x, r->y, r->w, r->h, r->rounding, r->color);
} break;
case GUI_COMMAND_CIRCLE: {
const struct gui_command_circle *c = gui_command(circle, cmd);
draw_circle(nvg, c->x, c->y, (float)c->w / 2.0f, c->color);
} break;
case GUI_COMMAND_TRIANGLE: {
const struct gui_command_triangle *t = gui_command(triangle, cmd);
draw_triangle(nvg, t->a.x, t->a.y, t->b.x, t->b.y, t->c.x,
t->c.y, t->color);
} break;
case GUI_COMMAND_TEXT: {
const struct gui_command_text *t = gui_command(text, cmd);
draw_text(nvg, t->x, t->y, t->w, t->h, t->foreground, t->background, t->string, t->length);
} break;
case GUI_COMMAND_IMAGE: {
const struct gui_command_image *i = gui_command(image, cmd);
draw_image(nvg, i->img.handle, i->x, i->y, i->w, i->h, 1);
} break;
case GUI_COMMAND_MAX:
default: break;
}
}
gui_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
int main(int argc, char* argv[])
{
set_delay_time(1);
create_turtle_world();
for (int n = 1; n < 73; n++)
{
draw_triangle(n);
}
return(p1world_shutdown());
}
/*TODO: add bottom and top face triangles*/
void draw_cube_brute()
{
draw_triangle(vertices_cube_brute, 4,5,1,BLUE);
draw_triangle(vertices_cube_brute, 0,4,1,BLUE);
draw_triangle(vertices_cube_brute, 5,6,2,CYAN);
draw_triangle(vertices_cube_brute, 1,5,2,CYAN);
draw_triangle(vertices_cube_brute, 3,2,6,YELLOW);
draw_triangle(vertices_cube_brute, 7,3,6,YELLOW);
draw_triangle(vertices_cube_brute, 0,3,7,MAGENTA);
draw_triangle(vertices_cube_brute, 4,0,7,MAGENTA);
draw_triangle(vertices_cube_brute, 1,2,3,WHITE);
draw_triangle(vertices_cube_brute, 7,6,5,WHITE);
//manually calculate the normals for the cube
if(draw_norms){
glBegin(GL_LINES);
{
glVertex4f(1,1,-1,1);
glVertex4f(1+1/sqrt(3),1+1/sqrt(3),-1-1/sqrt(3),1);
glVertex4f(1,-1,-1,1);
glVertex4f(1+1/sqrt(3),-1-1/sqrt(3),-1-1/sqrt(3),1);
glVertex4d(1,-1,1,1);
glVertex4f(1+1/sqrt(3),-1-1/sqrt(3),1+1/sqrt(3),1);
glVertex4d(-1,-1,1,1);
glVertex4f(-1-1/sqrt(3),-1-1/sqrt(3),1+1/sqrt(3),1);
glVertex4d(-1,1,1,1);
glVertex4f(-1-1/sqrt(3),1+1/sqrt(3),1+1/sqrt(3),1);
glVertex4d(-1,1,-1,1);
glVertex4f(-1-1/sqrt(3),1+1/sqrt(3),-1-1/sqrt(3),1);
glVertex4d(-1,-1,-1,1);
glVertex4f(-1-1/sqrt(3),-1-1/sqrt(3),-1-1/sqrt(3),1);
glVertex4d(1,1,1,1);
glVertex4f(1+1/sqrt(3),1+1/sqrt(3),1+1/sqrt(3),1);
}
glEnd();
}
}
/* Renders a triangle that rotates. */
void render(GLFWwindow* window)
{
float ratio = prepare_view_port(window);
prepare_identity_matrix(ratio);
glLoadIdentity();
glRotatef((float)glfwGetTime() * 50.f, 0.f, 0.f, 1.f);
draw_triangle();
// Swap the window buffer with the buffer we've drawn to.
glfwSwapBuffers(window);
}
//draw circle implementation (This is the correct way of drawing circles, but fps is too low)
void draw_circle2 (float r,float color[3]){
glPushMatrix();
int cut =24;
glColor3f(color[0],color[1],color[2]);
//glScalef(r*1.414,r*1.414,0);
for (int i = 0; i < cut; ++i)
{
draw_triangle(r*cos(i*2*PI/cut),r*sin(i*2*PI/cut),0,
r*cos((i+1)*2*PI/cut),r*sin((i+1)*2*PI/cut),0,
0,0,0);
}
glPopMatrix();
}
YUMEALIGN16 void window::draw(std::vector<Eigen::Vector4f, Eigen::aligned_allocator<Eigen::Vector4f>> vertices) {
std::vector<triangle> triangles;
triangles.resize(vertices.size() / 3);
for (size_t i = 0; i < vertices.size(); i += 3) {
triangles[i / 3].points.resize(3);
triangles[i / 3].points[0] = vertices[i + 0];
triangles[i / 3].points[1] = vertices[i + 1];
triangles[i / 3].points[2] = vertices[i + 2];
}
for (auto triangle : triangles) {
draw_triangle(triangle);
}
}
void hail_to_raster (
NIDS_image *im,
NIDS_hail *h)
{
int i, j;
if (h->severe >= 50) {
for (i = 16, j = 20 ; i > 0; i--, j--) {
draw_triangle(im, h->x_start, h->y_start, i, j, 3);
}
}
else if (h->severe >= 30) {
draw_triangle(im, h->x_start, h->y_start, 16, 20, 3);
}
else if (h->prob >= 50) {
for (i = 8, j = 12 ; i > 0; i--, j--) {
draw_triangle(im, h->x_start, h->y_start, i, j, 3);
}
}
else if (h->severe >= 30) {
draw_triangle(im, h->x_start, h->y_start, 8, 12, 3);
}
}
void
display( void )
{
glClear( GL_COLOR_BUFFER_BIT ); // clear the window
draw_circle(0); // size = 50
draw_ellipse(50); // size = 38
draw_triangle(88); // size = 3
draw_square(91); // size = 6
draw_square(97); // size = 6
draw_square(103); // size = 6
draw_square(109); // size = 6
draw_square(115); // size = 6
draw_square(121); // size = 6
glFlush();
}
int draw(t_env *e)
{
draw_triangle(e);
// do_the_thing(e, e->beta, 0, 0);
ft_more(e, 3);
// ft_more(e, 5);
// ft_more(e, 11 );
int i = 5;
while (i < 51)
{
ft_more(e, i);
i+= 7;
}
// print_old(e);
return (0);
}
void test_triangles(Screen* screen) {
fill_screen(screen, color_make(2, 0, 0));
Coordinate p1 = point_make(screen->window->size.width / 2, 0);
Coordinate p2 = point_make(0, screen->window->size.height - 10);
Coordinate p3 = point_make(screen->window->size.width, screen->window->size.height - 10);
for (int i = 1; i <= 12; i++) {
Triangle t = triangle_make(p1, p2, p3);
draw_triangle(screen, t, color_make(i, 0, 0), THICKNESS_FILLED);
p1.y += i * 2;
p2.x += i * 1.5;
p2.y -= i / 2;
p3.x -= i * 1.5;
p3.y -= i / 2;
}
}
void display(void)
{
glLoadIdentity();
gluLookAt (ex, ey, ez, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0);
glScalef(dimx, dimy, dimz);
glClear (GL_COLOR_BUFFER_BIT);
glClear (GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(xRotation, 1, 0, 0);
int pt;
for(pt=0; pt<20; pt++){
draw_triangle(sommets[sindex[pt][0]], sommets[sindex[pt][1]], sommets[sindex[pt][2]]);
}
glPopMatrix();
glutSwapBuffers();
}
/* The main rendering callback */
static gboolean
render (GtkGLArea *area,
GdkGLContext *context)
{
glClearColor (0.5, 0.5, 0.5, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glRotatef (rotation_angles[X_AXIS], 1, 0, 0);
glRotatef (rotation_angles[Y_AXIS], 0, 1, 0);
glRotatef (rotation_angles[Z_AXIS], 0, 0, 1);
draw_triangle ();
glFlush ();
return TRUE;
}
static gboolean
render (GtkGLArea *area,
GdkGLContext *context)
{
if (gtk_gl_area_get_error (area) != NULL)
return FALSE;
/* Clear the viewport */
glClearColor (0.5, 0.5, 0.5, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
/* Draw our object */
draw_triangle ();
/* Flush the contents of the pipeline */
glFlush ();
return TRUE;
}
void
TestRasterizationSpeed(void)
{
const int N = 1000;
struct timeval t0, t1;
double diff;
//srand(123456);
gettimeofday(&t0, NULL);
if (draw_optimized)
{
for (int t = 0; t < N; t++)
{
draw_triangle_optimized(
rand()%framebuffer_width, rand()%framebuffer_height,
rand()%framebuffer_width, rand()%framebuffer_height,
rand()%framebuffer_width, rand()%framebuffer_height,
colors[t%6].r, colors[t%6].g, colors[t%6].b);
}
}
else
{
for (int t = 0; t < N; t++)
{
draw_triangle(
rand()%framebuffer_width, rand()%framebuffer_height,
rand()%framebuffer_width, rand()%framebuffer_height,
rand()%framebuffer_width, rand()%framebuffer_height,
colors[t%6].r, colors[t%6].g, colors[t%6].b);
}
}
gettimeofday(&t1, NULL);
/* calculate time used */
diff = t1.tv_sec - t0.tv_sec + (t1.tv_usec - t0.tv_usec)*1.0e-6;
printf("%d triangles in %.6f seconds, %.1f triangles/sec\n", N, diff, N/diff);
}
END_TEST
// STUB goes here
START_TEST(test_draw_triangle) {
char stu[2048];
char *mod = "....#\n...##\n..###\n.####\n#####\n";
int size = 5;
freopen("mockoutput", "w", stdout);
draw_triangle(size);
read_stdout(stu, 2048);
char infostr[100] = "";
if (mycompare(stu, mod, infostr)) {
fail("[Task 1.5] Called draw_triangle(%d). Your output:\n%s\nReference output:\n%s\nReason: %s\n",
size, stu, mod, infostr);
}
}
void CusefulView::OnDraw(CDC* pDC)
{
CusefulDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
if(pDoc->m_triShow)
draw_triangle(pDoc->m_tinNet,pDoc->m_triVex,pDC);
if(pDoc->m_gridShow)
draw_grid(pDoc->m_grid,pDC);
if(pDoc->m_shp_Show)
{
CRect clientRect;
this->GetClientRect( &clientRect );
if ( m_pMapControl == 0 ) return ;
m_pMapControl->SetViewBound( clientRect.left,clientRect.top,clientRect.Width(), clientRect.Height() );
m_pMapControl->DrawMap();
}
// TODO: 在此处为本机数据添加绘制代码
}
