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Johan_Soderberg

OpenGL No Lighting on certain polygons

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Hi. I'm writing a small game (Tetris-clone), but I'm having som problems with lighting on certain polygons. I've written a small class to handle fonts, which is based on a single texture that holds all characters. Writing a character on screen i simply a matter of drawing a Quad and then selecting the right texture coordinates. However, when I do this OpenGL refuses to apply lighting to these polygons. Other polygons work just fine. I can't find anything wrong with the code (other than not working or being finished). Ideas? This is how a draw text and a textured polygon. The polygon is nicely lit and is working fine. The Font->DrawText(... method is further down the thread. float t2 = LogoEval_1->Evaluate(); Logo_Light->SetLight(0, 0, 2, t2, t2, t2, t2/5.0f, t2/5.0f, t2/5.0f, t2/8.0f, t2/8.0f, t2/8.0f); Logo_Light->CallLight(); glPushMatrix(); glRotatef(180, 0, 1, 0); glTranslatef(-7.0f, 4.5f, -12.0f); Font->DrawText("One Player"); glTranslatef(0,-2,0); Font->DrawText("Two Players"); glTranslatef(0,-2,0); Font->DrawText("High Scores"); glTranslatef(0,-2,0); Font->DrawText("About"); glPopMatrix(); Logo_Texture->Activate(); glPushMatrix(); glTranslatef(-0.5f,-0.5f, t2); glBegin(GL_QUADS); glTexCoord2i(1,0); glVertex3f( 0, 0, 1); glTexCoord2i(0,0); glVertex3f( 1, 0, 1); glTexCoord2i(0,1); glVertex3f(1, 1, 1); glTexCoord2i(1,1); glVertex3f(0, 1, 1); glEnd(); glPopMatrix(); ____________________________________________________________ void PAP_Font::DrawText(const string Text){ if (_Texture == NULL) return; _Texture->Activate(); glPushMatrix(); PAP_Character * c; for (unsigned int i = 0; i < Text.size(); i++){ // Space character if (Text == 32) glTranslatef(Characters[87 - 33]->Width, 0, 0); if (Text < 33) continue; c = Characters[Text - 33]; if (c == NULL) continue; glBegin(GL_QUADS); glNormal3f(0.0f,0.0f,1.0f); glTexCoord2f(c->st_UpLeft_X, 1.0f - c->st_UpLeft_Y); glVertex3f(0.0f, c->Height, 0.0f); glTexCoord2f(c->st_DownRight_X, 1.0f - c->st_UpLeft_Y); glVertex3f(c->Width, c->Height, 0.0f); glTexCoord2f(c->st_DownRight_X, 1.0f - c->st_DownRight_Y); glVertex3f(c->Width, 0.0f, 0.0f); glTexCoord2f(c->st_UpLeft_X, 1.0f - c->st_DownRight_Y); glVertex3f(0.0f, 0.0f, 0.0f); glEnd(); glTranslatef(c->Width, 0.0f ,0.0f); } glPopMatrix(); }

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