#123281 - adzz182 - Mon Mar 26, 2007 11:15 pm
Im new to openGL programming, im kinda making a 3D terrain navigating engine to practice programming. I think i have got the navigation bit sorted, but i am having trouble with toon shading and lighting. Could you please take a quick look over my code and discover why the lighting doesnt seem to work. I know its abit long, but i included the whole code so anyone that would like to compile it themselves can.
Thanks alot,
adam
Last edited by adzz182 on Tue Mar 27, 2007 9:41 pm; edited 1 time in total
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#include <nds.h> #include <stdio.h> #define ROTSPEED 6 #define MOVESPEED 15 #define piOver180 0.01745329252 int DrawGLScene(); int32 xpos; int32 zpos; int heading,heading90; int map_size=8; bool done = FALSE; int main() { powerON(POWER_ALL); videoSetMode(MODE_0_3D); videoSetModeSub(MODE_0_2D | DISPLAY_BG0_ACTIVE); vramSetBankC(VRAM_C_SUB_BG); BG_PALETTE_SUB[255] = RGB15(31,31,0); consoleInitDefault((u16*)SCREEN_BASE_BLOCK_SUB(31), (u16*)CHAR_BASE_BLOCK_SUB(0), 16); irqInit(); irqEnable(IRQ_VBLANK); glViewPort(0,0,255,191); glClearColor(8,8,31); glClearDepth(0x7FFF); glSetToonTableRange( 0, 0, RGB15(0,0,0)); glSetToonTableRange( 1, 12, RGB15(10,10,10) ); glSetToonTableRange( 13, 31, RGB15(25,25,25) ); while(1) { glReset(); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(35, 256.0 / 192.0, 0.1, 40); glLight(0, RGB15(31,31,31),0,floattov10(-1.0),0); glMatrixMode(GL_MODELVIEW); glMaterialf(GL_AMBIENT, RGB15(8,8,8)); glMaterialf(GL_DIFFUSE, RGB15(24,24,24)); glMaterialf(GL_SPECULAR, RGB15(0,0,0)); glMaterialf(GL_EMISSION, RGB15(0,0,0)); glPolyFmt(POLY_ALPHA(31) | POLY_CULL_BACK | POLY_FORMAT_LIGHT0 | POLY_FORMAT_LIGHT1 | POLY_TOON_SHADING); scanKeys(); heading90 = ((heading+128)&511); if (keysHeld() & KEY_LEFT) { xpos -= SIN[heading90] >> 4; zpos += COS[heading90] >> 4; } if (keysHeld() & KEY_RIGHT) { xpos += SIN[heading90] >> 4; zpos -= COS[heading90] >> 4; } if (keysHeld() & KEY_DOWN) { xpos -= (SIN[heading]>>4); zpos += (COS[heading]>>4); } if (keysHeld() & KEY_UP) { xpos += (SIN[heading]>>4); zpos -= (COS[heading]>>4); } if (keysHeld() & KEY_R) { heading=(heading+ROTSPEED)&511; } if(keysHeld() & KEY_L) { heading=(heading-ROTSPEED)&511; } glPushMatrix(); DrawGLScene(); glPopMatrix(1); swiWaitForVBlank(); glFlush(); } return 0; } int DrawGLScene() { glRotatef32i(-25,(1<<12),0,0); glRotatef32i((512-heading),0,(1<<12),0); glTranslate3f32(-xpos+(SIN[heading]<<1),0.0f,-zpos-(COS[heading]<<1)); glBegin(GL_QUADS); int x,z; glVertex3f(-1.0f,-1.0f,1.0f); glVertex3f(1.0f,-1.0f,1.0f); glVertex3f(1.0f,1.0f,1.0f); glVertex3f(-1.0f,1.0f,1.0f); glVertex3f(1.0f,-1.0f,1.0f); glVertex3f(1.0f,-1.0f,-1.0f); glVertex3f(1.0f,1.0f,-1.0f); glVertex3f(1.0f,1.0f,1.0f); glVertex3f(1.0f,-1.0f,-1.0f); glVertex3f(-1.0f,-1.0f,-1.0f); glVertex3f(-1.0f,1.0f,-1.0f); glVertex3f(1.0f,1.0f,-1.0f); glVertex3f(-1.0f,-1.0f,-1.0f); glVertex3f(-1.0f,-1.0f,1.0f); glVertex3f(-1.0f,1.0f,1.0f); glVertex3f(-1.0f,1.0f,-1.0f); glVertex3f(-1.0f,1.0f,1.0f); glVertex3f(1.0f,1.0f,1.0f); glVertex3f(1.0f,1.0f,-1.0f); glVertex3f(-1.0f,1.0f,-1.0f); glVertex3f(-1.0f,-1.0f,1.0f); glVertex3f(1.0f,-1.0f,1.0f); glVertex3f(1.0f,-1.0f,-1.0f); glVertex3f(-1.0f,-1.0f,-1.0f); for(x=-map_size;x<map_size;x+=1.0f) { for(z=-map_size;z<map_size;z+=1.0f) { glVertex3f(x ,-1.0f,z ); glVertex3f(x ,-1.0f,z-1.0f); glVertex3f(x-1.0f,-1.0f,z-1.0f); glVertex3f(x-1.0f,-1.0f,z ); } } glEnd(); SUB_BG0_CR = BG_MAP_BASE(31); consoleClear(); iprintf("X-Position : %d\n",xpos); iprintf("Z-Position : %d\n",zpos); iprintf("SIN[hding] : %d\n",SIN[heading]>>4); iprintf("COS[hding] : %d\n",COS[heading]>>4); iprintf("Heading : %d\n",heading); iprintf("512-Rot : %d\n",(512-heading)); iprintf("Map Size : %d\n",map_size); return TRUE; } |
Thanks alot,
adam
Last edited by adzz182 on Tue Mar 27, 2007 9:41 pm; edited 1 time in total