Cube  Diff

	vertcheck();
	if (showm) {
		l3 = l1 = &sbright;
		l4 = l2 = &sdark;
	};

	int sx, sy;
	int gltex = lookuptexture(wtex, &sx, &sy);
	float xf = TEXTURESCALE / sx;
	float yf = TEXTURESCALE / sy;
	float xs = size * xf;
	float ys = size * yf;
	float xo = xf * x;
	float yo = yf * y;

	vertcheck();
	if (showm) {
		l3 = l1 = &sbright;
		l4 = l2 = &sdark;
	};

	int sx, sy;
	int gltex = lookuptexture(wtex, &sx, &sy);
	float xf = TEXTURESCALE / sx;
	float yf = TEXTURESCALE / sy;
	float xs = size * xf;
	float ys = size * yf;
	float xo = xf * x;
	float yo = yf * y;

render_2tris(sqr *h, sqr *s, int x1, int y1, int x2, int y2, int x3, int y3,
    sqr *l1, sqr *l2, sqr *l3) // floor/ceil tris on a corner cube
{
	stripend();
	vertcheck();

	int sx, sy;
	int gltex = lookuptexture(h->ftex, &sx, &sy);
	float xf = TEXTURESCALE / sx;
	float yf = TEXTURESCALE / sy;

	vertf((float)x1, h->floor, (float)y1, l1, xf * x1, yf * y1);
	vertf((float)x2, h->floor, (float)y2, l2, xf * x2, yf * y2);
	vertf((float)x3, h->floor, (float)y3, l3, xf * x3, yf * y3);
	addstrip(gltex, curvert - 3, 3);

	gltex = lookuptexture(h->ctex, &sx, &sy);
	xf = TEXTURESCALE / sx;
	yf = TEXTURESCALE / sy;

	vertf((float)x3, h->ceil, (float)y3, l3, xf * x3, yf * y3);
	vertf((float)x2, h->ceil, (float)y2, l2, xf * x2, yf * y2);
	vertf((float)x1, h->ceil, (float)y1, l1, xf * x1, yf * y1);
	addstrip(gltex, curvert - 3, 3);

	vertcheck();
	if (showm) {
		l1 = &sbright;
		l2 = &sdark;
	};

	int sx, sy;
	int gltex = lookuptexture(wtex, &sx, &sy);
	float xf = TEXTURESCALE / sx;
	float yf = TEXTURESCALE / sy;
	float xs = size * xf;
	float xo = xf * (x1 == x2 ? min(y1, y2) : min(x1, x2));

	if (!flip) {
		vertf((float)x2, ceil2, (float)y2, l2, xo + xs, -yf * ceil2);

	if (wx1 < 0)
		return nquads;

	glDepthMask(GL_FALSE);
	glEnable(GL_BLEND);
	glBlendFunc(GL_ONE, GL_SRC_COLOR);
	int sx, sy;
	glBindTexture(GL_TEXTURE_2D, lookuptexture(DEFAULT_LIQUID, &sx, &sy));

	wx1 &= ~(watersubdiv - 1);
	wy1 &= ~(watersubdiv - 1);

	float xf = TEXTURESCALE / sx;
	float yf = TEXTURESCALE / sy;
	float xs = watersubdiv * xf;