Patch #8034: "soft" option for halos, which avoids ugly intersections

[blender-staging.git] / source / blender / render / intern / source / rendercore.c

diff --git a/source/blender/render/intern/source/rendercore.c b/source/blender/render/intern/source/rendercore.c
index e36d864903676ad7526019e6a3f01d398805f7c6..15d41d45d88adda49149a70a00de3de1eafd2f86 100644 (file)
--- a/source/blender/render/intern/source/rendercore.c
+++ b/source/blender/render/intern/source/rendercore.c
@@ -165,9 +165,11 @@ static int calchalo_z(HaloRen *har, int zz)
        return zz;
 }
 
+
+
 static void halo_pixelstruct(HaloRen *har, RenderLayer **rlpp, int totsample, int od, float dist, float xn, float yn, PixStr *ps)
 {
-       float col[4], accol[4];
+       float col[4], accol[4], fac;
        int amount, amountm, zz, flarec, sample, fullsample, mask=0;
        
        fullsample= (totsample > 1);
@@ -180,23 +182,22 @@ static void halo_pixelstruct(HaloRen *har, RenderLayer **rlpp, int totsample, in
                amount+= amountm;
                
                zz= calchalo_z(har, ps->z);
-               if(zz> har->zs) {
-                       float fac;
-                       
-                       shadeHaloFloat(har, col, zz, dist, xn, yn, flarec);
-                       flarec= 0;
-
-                       if(fullsample) {
-                               for(sample=0; sample<totsample; sample++)
-                                       if(ps->mask & (1 << sample))
-                                               addalphaAddfacFloat(rlpp[sample]->rectf + od*4, col, har->add);
-                       }
-                       else {
-                               fac= ((float)amountm)/(float)R.osa;
-                               accol[0]+= fac*col[0];
-                               accol[1]+= fac*col[1];
-                               accol[2]+= fac*col[2];
-                               accol[3]+= fac*col[3];
+               if((zz> har->zs) || (har->mat->mode & MA_HALO_SOFT)) {
+                       if(shadeHaloFloat(har, col, zz, dist, xn, yn, flarec)) {
+                               flarec= 0;
+
+                               if(fullsample) {
+                                       for(sample=0; sample<totsample; sample++)
+                                               if(ps->mask & (1 << sample))
+                                                       addalphaAddfacFloat(rlpp[sample]->rectf + od*4, col, har->add);
+                               }
+                               else {
+                                       fac= ((float)amountm)/(float)R.osa;
+                                       accol[0]+= fac*col[0];
+                                       accol[1]+= fac*col[1];
+                                       accol[2]+= fac*col[2];
+                                       accol[3]+= fac*col[3];
+                               }
                        }
                }
                
@@ -207,16 +208,14 @@ static void halo_pixelstruct(HaloRen *har, RenderLayer **rlpp, int totsample, in
        /* now do the sky sub-pixels */
        amount= R.osa-amount;
        if(amount) {
-               float fac;
-
-               shadeHaloFloat(har, col, 0x7FFFFF, dist, xn, yn, flarec);
-
-               if(!fullsample) {
-                       fac= ((float)amount)/(float)R.osa;
-                       accol[0]+= fac*col[0];
-                       accol[1]+= fac*col[1];
-                       accol[2]+= fac*col[2];
-                       accol[3]+= fac*col[3];
+               if(shadeHaloFloat(har, col, 0x7FFFFF, dist, xn, yn, flarec)) {
+                       if(!fullsample) {
+                               fac= ((float)amount)/(float)R.osa;
+                               accol[0]+= fac*col[0];
+                               accol[1]+= fac*col[1];
+                               accol[2]+= fac*col[2];
+                               accol[3]+= fac*col[3];
+                       }
                }
        }
 
@@ -301,11 +300,11 @@ static void halo_tile(RenderPart *pa, RenderLayer *rl)
                                                        }
                                                        else {
                                                                zz= calchalo_z(har, *rz);
-                                                               if(zz> har->zs) {
-                                                                       shadeHaloFloat(har, col, zz, dist, xn, yn, har->flarec);
-
-                                                                       for(sample=0; sample<totsample; sample++)
-                                                                               addalphaAddfacFloat(rlpp[sample]->rectf + od*4, col, har->add);
+                                                               if((zz> har->zs) || (har->mat->mode & MA_HALO_SOFT)) {
+                                                                       if(shadeHaloFloat(har, col, zz, dist, xn, yn, har->flarec)) {
+                                                                               for(sample=0; sample<totsample; sample++)
+                                                                                       addalphaAddfacFloat(rlpp[sample]->rectf + od*4, col, har->add);
+                                                                       }
                                                                }
                                                        }
                                                }
@@ -1634,8 +1633,8 @@ static void renderhalo_post(RenderResult *rr, float *rectf, HaloRen *har) /* pos
                                        dist= xsq+ysq;
                                        if(dist<har->radsq) {
                                                
-                                               shadeHaloFloat(har, colf, 0x7FFFFF, dist, xn, yn, har->flarec);
-                                               addalphaAddfacFloat(rtf, colf, har->add);
+                                               if(shadeHaloFloat(har, colf, 0x7FFFFF, dist, xn, yn, har->flarec))
+                                                       addalphaAddfacFloat(rtf, colf, har->add);
                                        }
                                        rtf+=4;
                                }