shithub: tinyrend

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correct zfb color rendering.

--- a/main.c

+++ b/main.c

@@ -488,9 +488,9 @@

 				zbuf[sp->p.x+sp->p.y*Dx(fb->r)] = z;

 				cbuf[0] = 0xFF;

-				cbuf[1] = 0xFF*z;

-				cbuf[2] = 0xFF*z;

-				cbuf[3] = 0xFF*z;

+				cbuf[1] = 0xFF*fabs(z);

+				cbuf[2] = 0xFF*fabs(z);

+				cbuf[3] = 0xFF*fabs(z);

 				memfillcolor(sp->frag, *(ulong*)cbuf);

 				pixel(zfb, sp->p, sp->frag);