diff options
Diffstat (limited to 'intern/cycles/kernel/osl/osl_shader.cpp')
| -rw-r--r-- | intern/cycles/kernel/osl/osl_shader.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/osl_shader.cpp b/intern/cycles/kernel/osl/osl_shader.cpp index 20dd167708c..0d762bbdb38 100644 --- a/intern/cycles/kernel/osl/osl_shader.cpp +++ b/intern/cycles/kernel/osl/osl_shader.cpp @@ -184,6 +184,48 @@ void OSLShader::eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state OSL::ShadingContext *octx = tdata->context[(int)ctx]; int shader = sd->shader & SHADER_MASK; + /* automatic bump shader */ + if(kg->osl->bump_state[shader]) { + /* save state */ + float3 P = sd->P; + float3 dPdx = sd->dP.dx; + float3 dPdy = sd->dP.dy; + + /* set state as if undisplaced */ + if(sd->flag & SD_HAS_DISPLACEMENT) { + float data[9]; + bool found = kg->osl->services->get_attribute(sd, true, OSLRenderServices::u_empty, TypeDesc::TypeVector, + OSLRenderServices::u_geom_undisplaced, data); + (void)found; + assert(found); + + memcpy(&sd->P, data, sizeof(float)*3); + memcpy(&sd->dP.dx, data+3, sizeof(float)*3); + memcpy(&sd->dP.dy, data+6, sizeof(float)*3); + + object_position_transform(kg, sd, &sd->P); + object_dir_transform(kg, sd, &sd->dP.dx); + object_dir_transform(kg, sd, &sd->dP.dy); + + globals->P = TO_VEC3(sd->P); + globals->dPdx = TO_VEC3(sd->dP.dx); + globals->dPdy = TO_VEC3(sd->dP.dy); + } + + /* execute bump shader */ + ss->execute(octx, *(kg->osl->bump_state[shader]), *globals); + + /* reset state */ + sd->P = P; + sd->dP.dx = dPdx; + sd->dP.dy = dPdy; + + globals->P = TO_VEC3(P); + globals->dPdx = TO_VEC3(dPdx); + globals->dPdy = TO_VEC3(dPdy); + } + + /* surface shader */ if(kg->osl->surface_state[shader]) { ss->execute(octx, *(kg->osl->surface_state[shader]), *globals); } |