griefith/test
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Cycles / Hair: No need to calculate curvepoint() when we use Ribbon curves.

Browse Source 
Also some style cleanup.
This commit is contained in:
Thomas Dinges
2013-12-24 04:00:27 +01:00
parent 04a902965e
commit 4ba80fd461
1 changed files with 8 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
intern/cycles/kernel/kernel_bvh.h
View File

@@ -1099,7 +1099,7 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con
float4 P1 = kernel_tex_fetch(__curve_keys, k0);
float4 P2 = kernel_tex_fetch(__curve_keys, k1);
float l = 1.0f;
float3 tg = normalize_len(float4_to_float3(P2 - P1),&l);
float3 tg = normalize_len(float4_to_float3(P2 - P1), &l);
float r1 = P1.w;
float r2 = P2.w;
float gd = ((r2 - r1)/l);
@@ -1119,17 +1119,17 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con
p[2] = float4_to_float3(P2);
p[3] = float4_to_float3(P3);
tg = normalize(curvetangent(isect->u,p[0],p[1],p[2],p[3]));
float3 p_curr = curvepoint(isect->u,p[0],p[1],p[2],p[3]);
#ifdef __UV__
sd->u = isect->u;
sd->v = 0.0f;
#endif
tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3]));
if(kernel_data.curve.curveflags & CURVE_KN_RIBBONS)
sd->Ng = normalize(-(D - tg * (dot(tg,D))));
sd->Ng = normalize(-(D - tg * (dot(tg, D))));
else {
float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]);
sd->Ng = normalize(P - p_curr);
sd->Ng = sd->Ng - gd * tg;
sd->Ng = normalize(sd->Ng);
@@ -1145,7 +1145,7 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con
#endif
if (flag & CURVE_KN_TRUETANGENTGNORMAL) {
sd->Ng = -(D - tg * dot(tg,D));
sd->Ng = -(D - tg * dot(tg, D));
sd->Ng = normalize(sd->Ng);
}
else {
@@ -1159,7 +1159,7 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con
sd->N = sd->Ng;
if (flag & CURVE_KN_TANGENTGNORMAL && !(flag & CURVE_KN_TRUETANGENTGNORMAL)) {
sd->N = -(D - tg * dot(tg,D));
sd->N = -(D - tg * dot(tg, D));
sd->N = normalize(sd->N);
}
if (!(flag & CURVE_KN_TANGENTGNORMAL) && flag & CURVE_KN_TRUETANGENTGNORMAL) {
@@ -1174,7 +1174,7 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con
#ifdef __DPDU__
/* dPdu/dPdv */
sd->dPdu = tg;
sd->dPdv = cross(tg,sd->Ng);
sd->dPdv = cross(tg, sd->Ng);
#endif
/*add fading parameter for minimum pixel width with transparency bsdf*/