diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-04-02 00:26:52 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-04-02 00:26:52 +0400 |
| commit | de9dffc61e15a6af41947cbcf09ada89779e86ac (patch) | |
| tree | c3f6e42482085a3a18c8278adf55dbb1e0f76c8d /intern/cycles/render/shader.h | |
| parent | 40b05d364e988bca01dd338026dc24765f56187a (diff) | |
Cycles: initial subsurface multiple scattering support. It's not working as
well as I would like, but it works, just add a subsurface scattering node and
you can use it like any other BSDF.
It is using fully raytraced sampling compatible with progressive rendering
and other more advanced rendering algorithms we might used in the future, and
it uses no extra memory so it's suitable for complex scenes.
Disadvantage is that it can be quite noisy and slow. Two limitations that will
be solved are that it does not work with bump mapping yet, and that the falloff
function used is a simple cubic function, it's not using the real BSSRDF
falloff function yet.
The node has a color input, along with a scattering radius for each RGB color
channel along with an overall scale factor for the radii.
There is also no GPU support yet, will test if I can get that working later.
Node Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#BSSRDF
Implementation notes:
http://wiki.blender.org/index.php/Dev:2.6/Source/Render/Cycles/Subsurface_Scattering
Diffstat (limited to 'intern/cycles/render/shader.h')
| -rw-r--r-- | intern/cycles/render/shader.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/intern/cycles/render/shader.h b/intern/cycles/render/shader.h index b38e098e3cb..2a9f1198467 100644 --- a/intern/cycles/render/shader.h +++ b/intern/cycles/render/shader.h @@ -75,6 +75,7 @@ public: bool has_surface_transparent; bool has_volume; bool has_displacement; + bool has_surface_bssrdf; /* requested mesh attributes */ AttributeRequestSet attributes; @@ -116,11 +117,11 @@ public: /* device update */ virtual void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress) = 0; - virtual void device_free(Device *device, DeviceScene *dscene) = 0; + virtual void device_free(Device *device, DeviceScene *dscene, Scene *scene) = 0; void device_update_shaders_used(Scene *scene); void device_update_common(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress); - void device_free_common(Device *device, DeviceScene *dscene); + void device_free_common(Device *device, DeviceScene *dscene, Scene *scene); /* get globally unique id for a type of attribute */ uint get_attribute_id(ustring name); @@ -138,6 +139,8 @@ protected: typedef unordered_map<ustring, uint, ustringHash> AttributeIDMap; AttributeIDMap unique_attribute_id; + + size_t bssrdf_table_offset; }; CCL_NAMESPACE_END |