diff options
Diffstat (limited to 'render.c')
| -rw-r--r-- | render.c | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -119,11 +119,12 @@ rasterize(Rastertask *task) dplen = hypot(dp.x, dp.y); perc = dplen == 0? 0: hypot(Δp.x, Δp.y)/dplen; - /* TODO it seems depth testing messes with the output. find out why */ + if(steep) swapi(&p.x, &p.y); + z = flerp(prim.v[0].p.z, prim.v[1].p.z, perc); depth = fclamp(z, 0, 1); - if(depth <= params->fb->zb[p.x + p.y*Dx(params->fb->r)]) - continue; + if(!ptinrect(p, params->fb->r) || depth <= params->fb->zb[p.x + p.y*Dx(params->fb->r)]) + goto discard; params->fb->zb[p.x + p.y*Dx(params->fb->r)] = depth; /* interpolate z⁻¹ and get actual z */ @@ -134,15 +135,13 @@ rasterize(Rastertask *task) perc *= prim.v[0].p.w * z; lerpvertex(&fsp.v, &prim.v[0], &prim.v[1], perc); - if(steep) swapi(&p.x, &p.y); - fsp.p = p; c = params->fshader(&fsp); memfillcolor(params->frag, col2ul(c)); pixel(params->fb->cb, p, params->frag); delvattrs(&fsp.v); - +discard: if(steep) swapi(&p.x, &p.y); e += Δe; |