diff options
Diffstat (limited to 'src/point.c')
-rw-r--r-- | src/point.c | 67 |
1 files changed, 47 insertions, 20 deletions
diff --git a/src/point.c b/src/point.c index d8e4c56..8605b00 100644 --- a/src/point.c +++ b/src/point.c @@ -53,6 +53,13 @@ void perspective_proj(GLFWwindow* b,cord* c, int len,double ctx,double cty,doubl //double cty = 0; //double ctz = 0; //cz=100-cz; + glColor3f(1.0f,0.0f,0.0f); + + GLfloat* pixels = malloc(sizeof(*pixels)*len*800*500*2); + + + //glfwSwapBuffers(b); + //return; double coy = cos(cty); double siz = sin(ctz); double coz = cos(ctz); @@ -66,7 +73,10 @@ void perspective_proj(GLFWwindow* b,cord* c, int len,double ctx,double cty,doubl refresh_size(b); glColor3f(1.0f,0.0f,0.0f); double ez = 1/tan(fov/2); - glBegin(GL_POINTS); + //glBegin(GL_POINTS); + GLuint fb = 0; + //glGenFramebuffers(1,&fb); + for(int i = 0; i!=len; i++){ double ax = c[i].x; double ay = c[i].y; @@ -83,11 +93,28 @@ void perspective_proj(GLFWwindow* b,cord* c, int len,double ctx,double cty,doubl double by = ez/dz*dy+dy; //printf("%f %f | %f %f %f\n",bx,by,ctx,cty,ctz); //int aaa = round((150-dz)/2); - if(dz>=0) - glfw_circle_partial(b,nearbyint(bx),nearbyint(by),/*(0>=aaa?1:*/1/*)*/); + if(dz>=0){ + ab_to_vp(xa,ya,get_w(),get_h(),bx,by); + //return; + //printf("%i:%f %f | %f %f\n",i*2,xa,ya,bx,by); + //return; + pixels[i*2] = xa; + pixels[i*2+1] = ya; + } else { + pixels[i*2] = -20; + pixels[i*2+1]= -20; + } + //glfw_circle_partial(b,nearbyint(bx),nearbyint(by),/*(0>=aaa?1:*/1/*)*/); //glfw_pixel_partial(b,round(bx),round(by)); } - glEnd(); + //return; + glPointSize(1.0f); + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(2,GL_FLOAT,0,pixels); + glDrawArrays(GL_POINTS,0,len); + glDisableClientState(GL_VERTEX_ARRAY); + free(pixels); + //glEnd(); } cord* basier3d(double*xx,double*yy,double*zz,int n){ cord* pa = malloc(sizeof(*pa)*(3000)); @@ -129,6 +156,7 @@ cord* basier3d(double*xx,double*yy,double*zz,int n){ return pa; } void join_cords(cord* a, cord* b, int a_len, int b_len){ + printf("%lu\n",sizeof(*a)*(a_len+b_len+2)); a = realloc(a,sizeof(*a)*(a_len+b_len+2)); for(int i = 0; i<=a_len+b_len; i++){ a[a_len+i] = b[i]; @@ -175,37 +203,36 @@ int main(){ double zz8[5] = {150.0,150.0,150.0}; cord* h = basier3d(xx8,yy8,zz8,3); join_cords(a,b,100,100); + free(b); join_cords(a,c,200,100); + free(c); join_cords(a,d,300,100); + free(d); join_cords(a,e,400,100); + free(e); join_cords(a,f,500,100); + free(f); join_cords(a,g,600,100); + free(g); join_cords(a,h,700,100); + free(h); GLFWwindow* w = glfw_init(); for(double rr = 0.01;rr<=20;rr+=0.01){ double p1 = 0; - double p2 = rr; - double p3 = 0; + double p2 = 0; + double p3 = rr; double p4 = -100; - double p5 = 0; - double p6 = rr*100*0; + double p5 = rr*100*0; + double p6 = 0; perspective_proj(w,a,800,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,b,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,c,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,d,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,e,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,f,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,g,100,p1,p2,p3,p4,p5,p6); - //perspective_proj(w,h,100,p1,p2,p3,p4,p5,p6); + glfw_load(w); - usleep(500); + + usleep(10000); glfw_clear(w); if(glfwWindowShouldClose(w))break; } - free(a); - free(b); - free(c); - free(d); + free(a); glfwDestroyWindow(w); win_clean(); return 0; |