blender
/
blender
136
407
Fork 589
Code Issues 6.3k Pull Requests 779 Projects 19 Wiki Activity

Cycles: new Microfacet-based Hair BSDF with elliptical cross-section support #105600

Merged
Weizhen Huang merged 114 commits from weizhen/blender:microfacet_hair into main 2023-08-18 12:46:20 +02:00
Conversation 12 Commits 114 Files Changed 25 +13 -6
1 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit 8af16fd087 - Show all commits

19
source/blender/blenkernel/intern/curve_catmull_rom.cc
View File

@ -86,14 +86,11 @@ static void interpolate_to_evaluated(const int order,
if (src.size() == 1) {
switch (order) {
case 1:
dst.first() = float3(0.0f, 0.0f, 1.0f);
break;
case 2:
dst.first() = float3(1.0f, 0.0f, 0.0f);
case 0:
dst.first() = src.first();
break;
default:
dst.first() = src.first();
dst.first() = T(0);
break;
}
return;
@ -204,6 +201,11 @@ void calculate_tangents(const Span<float3> positions,
const int resolution,
MutableSpan<float3> evaluated_tangents)
{
if (evaluated_tangents.size() == 1) {
evaluated_tangents[0] = float3(0.0f, 0.0f, 1.0f);
return;
}
interpolate_to_evaluated(
1,
positions,
@ -225,6 +227,11 @@ void calculate_normals(const Span<float3> positions,
const Span<float3> evaluated_tangents,
MutableSpan<float3> evaluated_normals)
{
if (evaluated_normals.size() == 1) {
evaluated_normals[0] = float3(1.0f, 0.0f, 0.0f);
return;
}
/* Compute the second derivative (r'') of the control points, evaluated at t = 0. */
interpolate_to_evaluated(
2,