Graphics assignment 10 - Texture mapping

Finished the complete assignment

graphics/ass10/geometry.c

@@ -103,8 +103,8 @@ setHemispherePoint(vec3 *p, vec3* n, vec3* t, int latitude, int longitude,
     p->z = oz + cos(longitude * dToR) * cos(latitude * dToR) * s;
 
     // Set texture coordinate
-    t->x = 0.0;
-    t->y = 0.0;
+    t->x = longitude / 360.0;
+    t->y = latitude / 90.0;
 
     // calculate normal
     n->x = p->x - ox;
@@ -165,6 +165,7 @@ createCylinder(polys * list, double radius, double height,
     double  len;
     poly    p;
     int     i;
+	GLfloat	tex_height = (GLfloat)(height / (2 * M_PI * radius));
 
     // prepare poly datastructure, as these values are the same for all generated polys
     p.points = 4;
@@ -197,8 +198,9 @@ createCylinder(polys * list, double radius, double height,
             p.normal[i].x /= len;
             p.normal[i].z /= len;
 
-            // Set texture coordinate
-            p.tcoord[i].x = p.tcoord[i].y = 0.0;
+            // Set texture coordinate/ 
+            p.tcoord[i].x = (i < 2 ? longitude : longitude+10) / 360.0;
+			p.tcoord[i].y = (i == 1 || i == 2) ? tex_height : 0.0;
         }
 
         AddPolyToPolylist(list, p);
@@ -259,7 +261,6 @@ readPolyVertices(poly *p, FILE *f, const vec3 *vertex_list, int num_vertices_to_
         }
 
     }
-
 }
 
 // Read a polygonal object from a .OBJ file.

graphics/ass10/ground.obj

@@ -7,6 +7,6 @@ v -100 0 50
 p 4 0
 0.5 1.0 0.5
 0  0.0 0.0
-1  0.0 0.0
-2  0.0 0.0
-3  0.0 0.0
+1  0.0 20.0
+2  10.0 20.0
+3  10.0 0.0

graphics/ass10/house.obj

@@ -27,53 +27,53 @@ v -2.8 1.4 -1.2
 p 4 2
 0.7 0.7 0.7
 0  0.0 0.0
-1  0.0 0.0
-5  0.0 0.0
-4  0.0 0.0
+1  1.0 0.0
+5  1.0 0.8
+4  0.0 0.8
 p 3 2
 0.7 0.7 0.7
-5  0.0 0.0
-8  0.0 0.0
+5  1.0 0.0
+8  0.5 0.5
 4  0.0 0.0
 
 p 4 2
 0.7 0.7 0.7
-2  0.0 0.0
-3  0.0 0.0
-7  0.0 0.0
-6  0.0 0.0
+2  -0.5 0.0
+3  0.5 0.0
+7  0.5 0.8
+6  -0.5 0.8
 p 3 2
 0.7 0.7 0.7
-7  0.0 0.0
-9  0.0 0.0
-6  0.0 0.0
+7  0.5 0.0
+9  0.0 0.5
+6  -0.5 0.0
 
 p 4 2
 0.7 0.7 0.7
-3  0.0 0.0
-0  0.0 0.0
-4  0.0 0.0
-7  0.0 0.0
+3  0.5 0.0
+0  3.0 0.0
+4  3.0 0.8
+7  0.5 0.8
 
 p 4 2
 0.7 0.7 0.7
-2  0.0 0.0
-6  0.0 0.0
-5  0.0 0.0
+2  2.5 0.0
+6  2.5 0.8
+5  0.0 0.8
 1  0.0 0.0
 
 # roof polygons (1=roof texture)
 
 p 4 1
 0.7 0.7 0.7
-10  0.0 0.0
-11  0.0 0.0
-12  0.0 0.0
+10  0.0 1.0
+11  3.0 1.0
+12  3.0 0.0
 13  0.0 0.0
 
 p 4 1
 0.7 0.7 0.7
-11  0.0 0.0
-10  0.0 0.0
-14  0.0 0.0
+11  0.0 1.0
+10  3.0 1.0
+14  3.0 0.0
 15  0.0 0.0

graphics/ass10/main.c

@@ -132,10 +132,9 @@ InitializePolygonlists(void)
         object_positions[0].x, object_positions[0].y, object_positions[0].z);
 
     // A single tree object
-    polylistTreeLeafs = CreatePolylist(10);
-    createSphere(polylistTreeLeafs, 0.7, 0.7, 0.7,  0, 1.7, 0,  0, 1, 0);
-    for (i = 0; i < polylistTreeLeafs->length; i++)
-        polylistTreeLeafs->items[i].texture_id = texture_names[0];
+    polylistTreeLeafs = CreatePolylist(4);
+    loadPolygonalObject(polylistTreeLeafs, "banana_leaf.obj", texture_names,
+		1.0, 0, 1.8, 0);
 
     polylistTreeStem = CreatePolylist(10);
     createCylinder(polylistTreeStem, 0.075, 1.8,  0, 0, 0,  0.5, 0.3, 0);
@@ -145,10 +144,10 @@ InitializePolygonlists(void)
     // Done!
     printf("%d polygons\n",
            polylistHouse->length + polylistTreeLeafs->length +
-           polylistTreeStem->length + polylistGround1->length + polylistGround2->length);
+           polylistTreeStem->length + polylistGround1->length +
+		   polylistGround2->length);
 }
 
-
 void
 InitGL(void)
 {
@@ -257,14 +256,16 @@ InitGL(void)
             glBindTexture(GL_TEXTURE_2D, texture_names[i]);
             glCheckError("glBindTexture");
 
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
             glCheckError("glTexParameteri");
 
-            glTexImage2D(GL_TEXTURE_2D, 0, texture_internal_format,
-                width, height, 0, texture_format, texture_type, image_data);
+            gluBuild2DMipmaps(GL_TEXTURE_2D, texture_internal_format,
+                width, height, texture_format, texture_type, image_data);
+			//glTexImage2D(GL_TEXTURE_2D, 0, texture_internal_format,
+            //    width, height, 0, texture_format, texture_type, image_data);
             glCheckError("glTexImage2D");
 
             // Free the image data, as OpenGL will have made its internal copy by now
@@ -312,6 +313,7 @@ DrawPolylist(polys * list)
         glBegin(GL_POLYGON);
         for (j = 0; j < p.points; j++)
         {
+            glTexCoord2f(p.tcoord[j].x, p.tcoord[j].y);
             glNormal3f(p.normal[j].x, p.normal[j].y, p.normal[j].z);
             glVertex3f(p.pts[j].x, p.pts[j].y, p.pts[j].z);
         }
@@ -420,16 +422,26 @@ DrawGLScene(void)
         glScalef(1, 1 + (rand_float()-0.5)*0.6, 1);
 
         DrawPolylist(polylistTreeStem);
+
+		// Draw 5 to 10 leafs
+		for( int l = 0, step = 360 / (5+rand()%6); l < 360; l += step )
+		{
+        	glPushMatrix();
+			
+       		glRotatef((float)l, 0, 1, 0);
 			DrawPolylist(polylistTreeLeafs);
         	
 			glPopMatrix();
 		}
 
+        glPopMatrix();
+    }
+
     // Draw the skydome with lighting turned off
 
     glPushAttrib(GL_LIGHTING_BIT);
     glDisable(GL_LIGHTING);
-    //DrawPolylist(polylistSkydome);
+    DrawPolylist(polylistSkydome);
     glPopAttrib();
 
     glutSwapBuffers();
@@ -511,7 +523,6 @@ mouseFunc(int button, int state, int x, int y)
         // pressed button released
         mouse_mode = 0;
     }
-
 }
 
 static void

graphics/ass10/road.obj

@@ -7,6 +7,6 @@ v -100 0 5
 p 4 5
 0.85 0.85 0.85
 0  0.0 0.0
-1  0.0 0.0
-2  0.0 0.0
-3  0.0 0.0
\ No newline at end of file
+1  0.0 1.0
+2  20.0 1.0
+3  20.0 0.0