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| author | Mai Lavelle <mai.lavelle@gmail.com> | 2016-07-17 05:57:06 +0300 |
|---|---|---|
| committer | Mai Lavelle <mai.lavelle@gmail.com> | 2016-08-07 18:13:11 +0300 |
| commit | 0b68c68006578bb5c2aec3f5fb698087c4fd0f4c (patch) | |
| tree | 114d95cd59ed3a60cc994c1723717dd8e969cb7b /intern/cycles/kernel/geom/geom_object.h | |
| parent | fc9747fa89152251cf50b48db311622916d14f8f (diff) | |
Cycles microdisplacement: Support for Catmull-Clark subdivision via OpenSubdiv
Enables Catmull-Clark subdivision meshes with support for creases and attribute
subdivision. Still waiting on OpenSubdiv to fully support face varying
interpolation for subdividing uv coordinates tho. Also there may be some
inconsistencies with Blender's subdivision which will be resolved at a
later time.
Code for reading patch tables and creating patch maps is borrowed
from OpenSubdiv.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D2111
Diffstat (limited to 'intern/cycles/kernel/geom/geom_object.h')
| -rw-r--r-- | intern/cycles/kernel/geom/geom_object.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/intern/cycles/kernel/geom/geom_object.h b/intern/cycles/kernel/geom/geom_object.h index c0d15a95954..883c5dc100d 100644 --- a/intern/cycles/kernel/geom/geom_object.h +++ b/intern/cycles/kernel/geom/geom_object.h @@ -292,6 +292,18 @@ ccl_device_inline void object_motion_info(KernelGlobals *kg, int object, int *nu *numverts = __float_as_int(f.w); } +/* Offset to an objects patch map */ + +ccl_device_inline uint object_patch_map_offset(KernelGlobals *kg, int object) +{ + if(object == OBJECT_NONE) + return 0; + + int offset = object*OBJECT_SIZE + 11; + float4 f = kernel_tex_fetch(__objects, offset); + return __float_as_uint(f.x); +} + /* Pass ID for shader */ ccl_device int shader_pass_id(KernelGlobals *kg, const ShaderData *sd) |