diff options
Diffstat (limited to 'intern/cycles/kernel/osl/osl_services.cpp')
| -rw-r--r-- | intern/cycles/kernel/osl/osl_services.cpp | 1721 |
1 files changed, 0 insertions, 1721 deletions
diff --git a/intern/cycles/kernel/osl/osl_services.cpp b/intern/cycles/kernel/osl/osl_services.cpp deleted file mode 100644 index cbe1bf1bfc0..00000000000 --- a/intern/cycles/kernel/osl/osl_services.cpp +++ /dev/null @@ -1,1721 +0,0 @@ -/* - * Copyright 2011-2013 Blender Foundation - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* TODO(sergey): There is a bit of headers dependency hell going on - * here, so for now we just put here. In the future it might be better - * to have dedicated file for such tweaks. - */ -#if (defined(__GNUC__) && !defined(__clang__)) && defined(NDEBUG) -# pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -# pragma GCC diagnostic ignored "-Wuninitialized" -#endif - -#include <string.h> - -#include "render/colorspace.h" -#include "render/mesh.h" -#include "render/object.h" -#include "render/scene.h" - -#include "kernel/osl/osl_closures.h" -#include "kernel/osl/osl_globals.h" -#include "kernel/osl/osl_services.h" -#include "kernel/osl/osl_shader.h" - -#include "util/util_foreach.h" -#include "util/util_logging.h" -#include "util/util_string.h" - -// clang-format off -#include "kernel/device/cpu/compat.h" -#include "kernel/device/cpu/globals.h" -#include "kernel/device/cpu/image.h" - -#include "kernel/kernel_differential.h" - -#include "kernel/integrator/integrator_state.h" -#include "kernel/integrator/integrator_state_flow.h" - -#include "kernel/geom/geom.h" -#include "kernel/bvh/bvh.h" - -#include "kernel/kernel_color.h" -#include "kernel/kernel_camera.h" -#include "kernel/kernel_path_state.h" -#include "kernel/kernel_projection.h" -#include "kernel/kernel_shader.h" -// clang-format on - -CCL_NAMESPACE_BEGIN - -/* RenderServices implementation */ - -static void copy_matrix(OSL::Matrix44 &m, const Transform &tfm) -{ - ProjectionTransform t = projection_transpose(ProjectionTransform(tfm)); - memcpy((void *)&m, &t, sizeof(m)); -} - -static void copy_matrix(OSL::Matrix44 &m, const ProjectionTransform &tfm) -{ - ProjectionTransform t = projection_transpose(tfm); - memcpy((void *)&m, &t, sizeof(m)); -} - -/* static ustrings */ -ustring OSLRenderServices::u_distance("distance"); -ustring OSLRenderServices::u_index("index"); -ustring OSLRenderServices::u_world("world"); -ustring OSLRenderServices::u_camera("camera"); -ustring OSLRenderServices::u_screen("screen"); -ustring OSLRenderServices::u_raster("raster"); -ustring OSLRenderServices::u_ndc("NDC"); -ustring OSLRenderServices::u_object_location("object:location"); -ustring OSLRenderServices::u_object_color("object:color"); -ustring OSLRenderServices::u_object_index("object:index"); -ustring OSLRenderServices::u_geom_dupli_generated("geom:dupli_generated"); -ustring OSLRenderServices::u_geom_dupli_uv("geom:dupli_uv"); -ustring OSLRenderServices::u_material_index("material:index"); -ustring OSLRenderServices::u_object_random("object:random"); -ustring OSLRenderServices::u_particle_index("particle:index"); -ustring OSLRenderServices::u_particle_random("particle:random"); -ustring OSLRenderServices::u_particle_age("particle:age"); -ustring OSLRenderServices::u_particle_lifetime("particle:lifetime"); -ustring OSLRenderServices::u_particle_location("particle:location"); -ustring OSLRenderServices::u_particle_rotation("particle:rotation"); -ustring OSLRenderServices::u_particle_size("particle:size"); -ustring OSLRenderServices::u_particle_velocity("particle:velocity"); -ustring OSLRenderServices::u_particle_angular_velocity("particle:angular_velocity"); -ustring OSLRenderServices::u_geom_numpolyvertices("geom:numpolyvertices"); -ustring OSLRenderServices::u_geom_trianglevertices("geom:trianglevertices"); -ustring OSLRenderServices::u_geom_polyvertices("geom:polyvertices"); -ustring OSLRenderServices::u_geom_name("geom:name"); -ustring OSLRenderServices::u_geom_undisplaced("geom:undisplaced"); -ustring OSLRenderServices::u_is_smooth("geom:is_smooth"); -ustring OSLRenderServices::u_is_curve("geom:is_curve"); -ustring OSLRenderServices::u_curve_thickness("geom:curve_thickness"); -ustring OSLRenderServices::u_curve_length("geom:curve_length"); -ustring OSLRenderServices::u_curve_tangent_normal("geom:curve_tangent_normal"); -ustring OSLRenderServices::u_curve_random("geom:curve_random"); -ustring OSLRenderServices::u_normal_map_normal("geom:normal_map_normal"); -ustring OSLRenderServices::u_path_ray_length("path:ray_length"); -ustring OSLRenderServices::u_path_ray_depth("path:ray_depth"); -ustring OSLRenderServices::u_path_diffuse_depth("path:diffuse_depth"); -ustring OSLRenderServices::u_path_glossy_depth("path:glossy_depth"); -ustring OSLRenderServices::u_path_transparent_depth("path:transparent_depth"); -ustring OSLRenderServices::u_path_transmission_depth("path:transmission_depth"); -ustring OSLRenderServices::u_trace("trace"); -ustring OSLRenderServices::u_hit("hit"); -ustring OSLRenderServices::u_hitdist("hitdist"); -ustring OSLRenderServices::u_N("N"); -ustring OSLRenderServices::u_Ng("Ng"); -ustring OSLRenderServices::u_P("P"); -ustring OSLRenderServices::u_I("I"); -ustring OSLRenderServices::u_u("u"); -ustring OSLRenderServices::u_v("v"); -ustring OSLRenderServices::u_empty; - -OSLRenderServices::OSLRenderServices(OSL::TextureSystem *texture_system) - : texture_system(texture_system) -{ -} - -OSLRenderServices::~OSLRenderServices() -{ - if (texture_system) { - VLOG(2) << "OSL texture system stats:\n" << texture_system->getstats(); - } -} - -bool OSLRenderServices::get_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - OSL::TransformationPtr xform, - float time) -{ - /* this is only used for shader and object space, we don't really have - * a concept of shader space, so we just use object space for both. */ - if (xform) { - const ShaderData *sd = (const ShaderData *)xform; - const KernelGlobalsCPU *kg = sd->osl_globals; - int object = sd->object; - - if (object != OBJECT_NONE) { -#ifdef __OBJECT_MOTION__ - Transform tfm; - - if (time == sd->time) - tfm = object_get_transform(kg, sd); - else - tfm = object_fetch_transform_motion_test(kg, object, time, NULL); -#else - const Transform tfm = object_get_transform(kg, sd); -#endif - copy_matrix(result, tfm); - - return true; - } - else if (sd->type == PRIMITIVE_LAMP) { - const Transform tfm = lamp_fetch_transform(kg, sd->lamp, false); - copy_matrix(result, tfm); - - return true; - } - } - - return false; -} - -bool OSLRenderServices::get_inverse_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - OSL::TransformationPtr xform, - float time) -{ - /* this is only used for shader and object space, we don't really have - * a concept of shader space, so we just use object space for both. */ - if (xform) { - const ShaderData *sd = (const ShaderData *)xform; - const KernelGlobalsCPU *kg = sd->osl_globals; - int object = sd->object; - - if (object != OBJECT_NONE) { -#ifdef __OBJECT_MOTION__ - Transform itfm; - - if (time == sd->time) - itfm = object_get_inverse_transform(kg, sd); - else - object_fetch_transform_motion_test(kg, object, time, &itfm); -#else - const Transform itfm = object_get_inverse_transform(kg, sd); -#endif - copy_matrix(result, itfm); - - return true; - } - else if (sd->type == PRIMITIVE_LAMP) { - const Transform itfm = lamp_fetch_transform(kg, sd->lamp, true); - copy_matrix(result, itfm); - - return true; - } - } - - return false; -} - -bool OSLRenderServices::get_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - ustring from, - float time) -{ - ShaderData *sd = (ShaderData *)(sg->renderstate); - const KernelGlobalsCPU *kg = sd->osl_globals; - - if (from == u_ndc) { - copy_matrix(result, kernel_data.cam.ndctoworld); - return true; - } - else if (from == u_raster) { - copy_matrix(result, kernel_data.cam.rastertoworld); - return true; - } - else if (from == u_screen) { - copy_matrix(result, kernel_data.cam.screentoworld); - return true; - } - else if (from == u_camera) { - copy_matrix(result, kernel_data.cam.cameratoworld); - return true; - } - else if (from == u_world) { - result.makeIdentity(); - return true; - } - - return false; -} - -bool OSLRenderServices::get_inverse_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - ustring to, - float time) -{ - ShaderData *sd = (ShaderData *)(sg->renderstate); - const KernelGlobalsCPU *kg = sd->osl_globals; - - if (to == u_ndc) { - copy_matrix(result, kernel_data.cam.worldtondc); - return true; - } - else if (to == u_raster) { - copy_matrix(result, kernel_data.cam.worldtoraster); - return true; - } - else if (to == u_screen) { - copy_matrix(result, kernel_data.cam.worldtoscreen); - return true; - } - else if (to == u_camera) { - copy_matrix(result, kernel_data.cam.worldtocamera); - return true; - } - else if (to == u_world) { - result.makeIdentity(); - return true; - } - - return false; -} - -bool OSLRenderServices::get_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - OSL::TransformationPtr xform) -{ - /* this is only used for shader and object space, we don't really have - * a concept of shader space, so we just use object space for both. */ - if (xform) { - const ShaderData *sd = (const ShaderData *)xform; - const KernelGlobalsCPU *kg = sd->osl_globals; - int object = sd->object; - - if (object != OBJECT_NONE) { - const Transform tfm = object_get_transform(kg, sd); - copy_matrix(result, tfm); - - return true; - } - else if (sd->type == PRIMITIVE_LAMP) { - const Transform tfm = lamp_fetch_transform(kg, sd->lamp, false); - copy_matrix(result, tfm); - - return true; - } - } - - return false; -} - -bool OSLRenderServices::get_inverse_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - OSL::TransformationPtr xform) -{ - /* this is only used for shader and object space, we don't really have - * a concept of shader space, so we just use object space for both. */ - if (xform) { - const ShaderData *sd = (const ShaderData *)xform; - const KernelGlobalsCPU *kg = sd->osl_globals; - int object = sd->object; - - if (object != OBJECT_NONE) { - const Transform tfm = object_get_inverse_transform(kg, sd); - copy_matrix(result, tfm); - - return true; - } - else if (sd->type == PRIMITIVE_LAMP) { - const Transform itfm = lamp_fetch_transform(kg, sd->lamp, true); - copy_matrix(result, itfm); - - return true; - } - } - - return false; -} - -bool OSLRenderServices::get_matrix(OSL::ShaderGlobals *sg, OSL::Matrix44 &result, ustring from) -{ - ShaderData *sd = (ShaderData *)(sg->renderstate); - const KernelGlobalsCPU *kg = sd->osl_globals; - - if (from == u_ndc) { - copy_matrix(result, kernel_data.cam.ndctoworld); - return true; - } - else if (from == u_raster) { - copy_matrix(result, kernel_data.cam.rastertoworld); - return true; - } - else if (from == u_screen) { - copy_matrix(result, kernel_data.cam.screentoworld); - return true; - } - else if (from == u_camera) { - copy_matrix(result, kernel_data.cam.cameratoworld); - return true; - } - - return false; -} - -bool OSLRenderServices::get_inverse_matrix(OSL::ShaderGlobals *sg, - OSL::Matrix44 &result, - ustring to) -{ - ShaderData *sd = (ShaderData *)(sg->renderstate); - const KernelGlobalsCPU *kg = sd->osl_globals; - - if (to == u_ndc) { - copy_matrix(result, kernel_data.cam.worldtondc); - return true; - } - else if (to == u_raster) { - copy_matrix(result, kernel_data.cam.worldtoraster); - return true; - } - else if (to == u_screen) { - copy_matrix(result, kernel_data.cam.worldtoscreen); - return true; - } - else if (to == u_camera) { - copy_matrix(result, kernel_data.cam.worldtocamera); - return true; - } - - return false; -} - -bool OSLRenderServices::get_array_attribute(OSL::ShaderGlobals *sg, - bool derivatives, - ustring object, - TypeDesc type, - ustring name, - int index, - void *val) -{ - return false; -} - -static bool set_attribute_float2(float2 f[3], TypeDesc type, bool derivatives, void *val) -{ - if (type == TypeFloatArray4) { - float *fval = (float *)val; - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = 0.0f; - fval[3] = 1.0f; - - if (derivatives) { - fval[4] = f[1].x; - fval[5] = f[1].y; - fval[6] = 0.0f; - fval[7] = 0.0f; - - fval[8] = f[2].x; - fval[9] = f[2].y; - fval[10] = 0.0f; - fval[11] = 0.0f; - } - return true; - } - else if (type == TypeDesc::TypePoint || type == TypeDesc::TypeVector || - type == TypeDesc::TypeNormal || type == TypeDesc::TypeColor) { - float *fval = (float *)val; - - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = 0.0f; - - if (derivatives) { - fval[3] = f[1].x; - fval[4] = f[1].y; - fval[5] = 0.0f; - - fval[6] = f[2].x; - fval[7] = f[2].y; - fval[8] = 0.0f; - } - - return true; - } - else if (type == TypeDesc::TypeFloat) { - float *fval = (float *)val; - fval[0] = average(f[0]); - - if (derivatives) { - fval[1] = average(f[1]); - fval[2] = average(f[2]); - } - - return true; - } - - return false; -} - -static bool set_attribute_float2(float2 f, TypeDesc type, bool derivatives, void *val) -{ - float2 fv[3]; - - fv[0] = f; - fv[1] = make_float2(0.0f, 0.0f); - fv[2] = make_float2(0.0f, 0.0f); - - return set_attribute_float2(fv, type, derivatives, val); -} - -static bool set_attribute_float3(float3 f[3], TypeDesc type, bool derivatives, void *val) -{ - if (type == TypeFloatArray4) { - float *fval = (float *)val; - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = f[0].z; - fval[3] = 1.0f; - - if (derivatives) { - fval[4] = f[1].x; - fval[5] = f[1].y; - fval[6] = f[1].z; - fval[7] = 0.0f; - - fval[8] = f[2].x; - fval[9] = f[2].y; - fval[10] = f[2].z; - fval[11] = 0.0f; - } - return true; - } - else if (type == TypeDesc::TypePoint || type == TypeDesc::TypeVector || - type == TypeDesc::TypeNormal || type == TypeDesc::TypeColor) { - float *fval = (float *)val; - - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = f[0].z; - - if (derivatives) { - fval[3] = f[1].x; - fval[4] = f[1].y; - fval[5] = f[1].z; - - fval[6] = f[2].x; - fval[7] = f[2].y; - fval[8] = f[2].z; - } - - return true; - } - else if (type == TypeDesc::TypeFloat) { - float *fval = (float *)val; - fval[0] = average(f[0]); - - if (derivatives) { - fval[1] = average(f[1]); - fval[2] = average(f[2]); - } - - return true; - } - - return false; -} - -static bool set_attribute_float3(float3 f, TypeDesc type, bool derivatives, void *val) -{ - float3 fv[3]; - - fv[0] = f; - fv[1] = make_float3(0.0f, 0.0f, 0.0f); - fv[2] = make_float3(0.0f, 0.0f, 0.0f); - - return set_attribute_float3(fv, type, derivatives, val); -} - -/* Attributes with the TypeRGBA type descriptor should be retrieved and stored - * in a float array of size 4 (e.g. node_vertex_color.osl), this array have - * a type descriptor TypeFloatArray4. If the storage is not a TypeFloatArray4, - * we either store the first three components in a vector, store the average of - * the components in a float, or fail the retrieval and do nothing. We allow - * this for the correct operation of the Attribute node. - */ - -static bool set_attribute_float4(float4 f[3], TypeDesc type, bool derivatives, void *val) -{ - float *fval = (float *)val; - if (type == TypeFloatArray4) { - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = f[0].z; - fval[3] = f[0].w; - - if (derivatives) { - fval[4] = f[1].x; - fval[5] = f[1].y; - fval[6] = f[1].z; - fval[7] = f[1].w; - - fval[8] = f[2].x; - fval[9] = f[2].y; - fval[10] = f[2].z; - fval[11] = f[2].w; - } - return true; - } - else if (type == TypeDesc::TypePoint || type == TypeDesc::TypeVector || - type == TypeDesc::TypeNormal || type == TypeDesc::TypeColor) { - fval[0] = f[0].x; - fval[1] = f[0].y; - fval[2] = f[0].z; - - if (derivatives) { - fval[3] = f[1].x; - fval[4] = f[1].y; - fval[5] = f[1].z; - - fval[6] = f[2].x; - fval[7] = f[2].y; - fval[8] = f[2].z; - } - return true; - } - else if (type == TypeDesc::TypeFloat) { - fval[0] = average(float4_to_float3(f[0])); - - if (derivatives) { - fval[1] = average(float4_to_float3(f[1])); - fval[2] = average(float4_to_float3(f[2])); - } - return true; - } - return false; -} - -static bool set_attribute_float4(float4 f, TypeDesc type, bool derivatives, void *val) -{ - float4 fv[3]; - - fv[0] = f; - fv[1] = make_float4(0.0f, 0.0f, 0.0f, 0.0f); - fv[2] = make_float4(0.0f, 0.0f, 0.0f, 0.0f); - - return set_attribute_float4(fv, type, derivatives, val); -} - -static bool set_attribute_float(float f[3], TypeDesc type, bool derivatives, void *val) -{ - if (type == TypeFloatArray4) { - float *fval = (float *)val; - fval[0] = f[0]; - fval[1] = f[0]; - fval[2] = f[0]; - fval[3] = 1.0f; - - if (derivatives) { - fval[4] = f[1]; - fval[5] = f[1]; - fval[6] = f[1]; - fval[7] = 0.0f; - - fval[8] = f[2]; - fval[9] = f[2]; - fval[10] = f[2]; - fval[11] = 0.0f; - } - return true; - } - else if (type == TypeDesc::TypePoint || type == TypeDesc::TypeVector || - type == TypeDesc::TypeNormal || type == TypeDesc::TypeColor) { - float *fval = (float *)val; - fval[0] = f[0]; - fval[1] = f[0]; - fval[2] = f[0]; - - if (derivatives) { - fval[3] = f[1]; - fval[4] = f[1]; - fval[5] = f[1]; - - fval[6] = f[2]; - fval[7] = f[2]; - fval[8] = f[2]; - } - - return true; - } - else if (type == TypeDesc::TypeFloat) { - float *fval = (float *)val; - fval[0] = f[0]; - - if (derivatives) { - fval[1] = f[1]; - fval[2] = f[2]; - } - - return true; - } - - return false; -} - -static bool set_attribute_float(float f, TypeDesc type, bool derivatives, void *val) -{ - float fv[3]; - - fv[0] = f; - fv[1] = 0.0f; - fv[2] = 0.0f; - - return set_attribute_float(fv, type, derivatives, val); -} - -static bool set_attribute_int(int i, TypeDesc type, bool derivatives, void *val) -{ - if (type.basetype == TypeDesc::INT && type.aggregate == TypeDesc::SCALAR && type.arraylen == 0) { - int *ival = (int *)val; - ival[0] = i; - - if (derivatives) { - ival[1] = 0; - ival[2] = 0; - } - - return true; - } - - return false; -} - -static bool set_attribute_string(ustring str, TypeDesc type, bool derivatives, void *val) -{ - if (type.basetype == TypeDesc::STRING && type.aggregate == TypeDesc::SCALAR && - type.arraylen == 0) { - ustring *sval = (ustring *)val; - sval[0] = str; - - if (derivatives) { - sval[1] = OSLRenderServices::u_empty; - sval[2] = OSLRenderServices::u_empty; - } - - return true; - } - - return false; -} - -static bool set_attribute_float3_3(float3 P[3], TypeDesc type, bool derivatives, void *val) -{ - if (type.vecsemantics == TypeDesc::POINT && type.arraylen >= 3) { - float *fval = (float *)val; - - fval[0] = P[0].x; - fval[1] = P[0].y; - fval[2] = P[0].z; - - fval[3] = P[1].x; - fval[4] = P[1].y; - fval[5] = P[1].z; - - fval[6] = P[2].x; - fval[7] = P[2].y; - fval[8] = P[2].z; - - if (type.arraylen > 3) - memset(fval + 3 * 3, 0, sizeof(float) * 3 * (type.arraylen - 3)); - if (derivatives) - memset(fval + type.arraylen * 3, 0, sizeof(float) * 2 * 3 * type.arraylen); - - return true; - } - - return false; -} - -static bool set_attribute_matrix(const Transform &tfm, TypeDesc type, void *val) -{ - if (type == TypeDesc::TypeMatrix) { - copy_matrix(*(OSL::Matrix44 *)val, tfm); - return true; - } - - return false; -} - -static bool get_primitive_attribute(const KernelGlobalsCPU *kg, - const ShaderData *sd, - const OSLGlobals::Attribute &attr, - const TypeDesc &type, - bool derivatives, - void *val) -{ - if (attr.type == TypeDesc::TypePoint || attr.type == TypeDesc::TypeVector || - attr.type == TypeDesc::TypeNormal || attr.type == TypeDesc::TypeColor) { - float3 fval[3]; - if (primitive_is_volume_attribute(sd, attr.desc)) { - fval[0] = primitive_volume_attribute_float3(kg, sd, attr.desc); - } - else { - memset(fval, 0, sizeof(fval)); - fval[0] = primitive_surface_attribute_float3( - kg, sd, attr.desc, (derivatives) ? &fval[1] : NULL, (derivatives) ? &fval[2] : NULL); - } - return set_attribute_float3(fval, type, derivatives, val); - } - else if (attr.type == TypeFloat2) { - if (primitive_is_volume_attribute(sd, attr.desc)) { - assert(!"Float2 attribute not support for volumes"); - return false; - } - else { - float2 fval[3]; - fval[0] = primitive_surface_attribute_float2( - kg, sd, attr.desc, (derivatives) ? &fval[1] : NULL, (derivatives) ? &fval[2] : NULL); - return set_attribute_float2(fval, type, derivatives, val); - } - } - else if (attr.type == TypeDesc::TypeFloat) { - float fval[3]; - if (primitive_is_volume_attribute(sd, attr.desc)) { - memset(fval, 0, sizeof(fval)); - fval[0] = primitive_volume_attribute_float(kg, sd, attr.desc); - } - else { - fval[0] = primitive_surface_attribute_float( - kg, sd, attr.desc, (derivatives) ? &fval[1] : NULL, (derivatives) ? &fval[2] : NULL); - } - return set_attribute_float(fval, type, derivatives, val); - } - else if (attr.type == TypeDesc::TypeFloat4 || attr.type == TypeRGBA) { - float4 fval[3]; - if (primitive_is_volume_attribute(sd, attr.desc)) { - memset(fval, 0, sizeof(fval)); - fval[0] = primitive_volume_attribute_float4(kg, sd, attr.desc); - } - else { - fval[0] = primitive_surface_attribute_float4( - kg, sd, attr.desc, (derivatives) ? &fval[1] : NULL, (derivatives) ? &fval[2] : NULL); - } - return set_attribute_float4(fval, type, derivatives, val); - } - else { - return false; - } -} - -static bool get_mesh_attribute(const KernelGlobalsCPU *kg, - const ShaderData *sd, - const OSLGlobals::Attribute &attr, - const TypeDesc &type, - bool derivatives, - void *val) -{ - if (attr.type == TypeDesc::TypeMatrix) { - Transform tfm = primitive_attribute_matrix(kg, sd, attr.desc); - return set_attribute_matrix(tfm, type, val); - } - else { - return false; - } -} - -static bool get_object_attribute(const OSLGlobals::Attribute &attr, - TypeDesc type, - bool derivatives, - void *val) -{ - if (attr.type == TypeDesc::TypePoint || attr.type == TypeDesc::TypeVector || - attr.type == TypeDesc::TypeNormal || attr.type == TypeDesc::TypeColor) { - return set_attribute_float3(*(float3 *)attr.value.data(), type, derivatives, val); - } - else if (attr.type == TypeFloat2) { - return set_attribute_float2(*(float2 *)attr.value.data(), type, derivatives, val); - } - else if (attr.type == TypeDesc::TypeFloat) { - return set_attribute_float(*(float *)attr.value.data(), type, derivatives, val); - } - else if (attr.type == TypeRGBA || attr.type == TypeDesc::TypeFloat4) { - return set_attribute_float4(*(float4 *)attr.value.data(), type, derivatives, val); - } - else if (attr.type == type) { - size_t datasize = attr.value.datasize(); - - memcpy(val, attr.value.data(), datasize); - if (derivatives) { - memset((char *)val + datasize, 0, datasize * 2); - } - - return true; - } - else { - return false; - } -} - -bool OSLRenderServices::get_object_standard_attribute(const KernelGlobalsCPU *kg, - ShaderData *sd, - ustring name, - TypeDesc type, - bool derivatives, - void *val) -{ - /* todo: turn this into hash table? */ - - /* Object Attributes */ - if (name == u_object_location) { - float3 f = object_location(kg, sd); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_object_color) { - float3 f = object_color(kg, sd->object); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_object_index) { - float f = object_pass_id(kg, sd->object); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_geom_dupli_generated) { - float3 f = object_dupli_generated(kg, sd->object); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_geom_dupli_uv) { - float3 f = object_dupli_uv(kg, sd->object); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_material_index) { - float f = shader_pass_id(kg, sd); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_object_random) { - float f = object_random_number(kg, sd->object); - return set_attribute_float(f, type, derivatives, val); - } - - /* Particle Attributes */ - else if (name == u_particle_index) { - int particle_id = object_particle_id(kg, sd->object); - float f = particle_index(kg, particle_id); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_particle_random) { - int particle_id = object_particle_id(kg, sd->object); - float f = hash_uint2_to_float(particle_index(kg, particle_id), 0); - return set_attribute_float(f, type, derivatives, val); - } - - else if (name == u_particle_age) { - int particle_id = object_particle_id(kg, sd->object); - float f = particle_age(kg, particle_id); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_particle_lifetime) { - int particle_id = object_particle_id(kg, sd->object); - float f = particle_lifetime(kg, particle_id); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_particle_location) { - int particle_id = object_particle_id(kg, sd->object); - float3 f = particle_location(kg, particle_id); - return set_attribute_float3(f, type, derivatives, val); - } -#if 0 /* unsupported */ - else if (name == u_particle_rotation) { - int particle_id = object_particle_id(kg, sd->object); - float4 f = particle_rotation(kg, particle_id); - return set_attribute_float4(f, type, derivatives, val); - } -#endif - else if (name == u_particle_size) { - int particle_id = object_particle_id(kg, sd->object); - float f = particle_size(kg, particle_id); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_particle_velocity) { - int particle_id = object_particle_id(kg, sd->object); - float3 f = particle_velocity(kg, particle_id); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_particle_angular_velocity) { - int particle_id = object_particle_id(kg, sd->object); - float3 f = particle_angular_velocity(kg, particle_id); - return set_attribute_float3(f, type, derivatives, val); - } - - /* Geometry Attributes */ - else if (name == u_geom_numpolyvertices) { - return set_attribute_int(3, type, derivatives, val); - } - else if ((name == u_geom_trianglevertices || name == u_geom_polyvertices) && - sd->type & PRIMITIVE_ALL_TRIANGLE) { - float3 P[3]; - - if (sd->type & PRIMITIVE_TRIANGLE) - triangle_vertices(kg, sd->prim, P); - else - motion_triangle_vertices(kg, sd->object, sd->prim, sd->time, P); - - if (!(sd->object_flag & SD_OBJECT_TRANSFORM_APPLIED)) { - object_position_transform(kg, sd, &P[0]); - object_position_transform(kg, sd, &P[1]); - object_position_transform(kg, sd, &P[2]); - } - - return set_attribute_float3_3(P, type, derivatives, val); - } - else if (name == u_geom_name) { - ustring object_name = kg->osl->object_names[sd->object]; - return set_attribute_string(object_name, type, derivatives, val); - } - else if (name == u_is_smooth) { - float f = ((sd->shader & SHADER_SMOOTH_NORMAL) != 0); - return set_attribute_float(f, type, derivatives, val); - } - /* Hair Attributes */ - else if (name == u_is_curve) { - float f = (sd->type & PRIMITIVE_ALL_CURVE) != 0; - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_curve_thickness) { - float f = curve_thickness(kg, sd); - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_curve_tangent_normal) { - float3 f = curve_tangent_normal(kg, sd); - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_normal_map_normal) { - if (sd->type & PRIMITIVE_ALL_TRIANGLE) { - float3 f = triangle_smooth_normal_unnormalized(kg, sd, sd->Ng, sd->prim, sd->u, sd->v); - return set_attribute_float3(f, type, derivatives, val); - } - else { - return false; - } - } - else { - return false; - } -} - -bool OSLRenderServices::get_background_attribute(const KernelGlobalsCPU *kg, - ShaderData *sd, - ustring name, - TypeDesc type, - bool derivatives, - void *val) -{ - if (name == u_path_ray_length) { - /* Ray Length */ - float f = sd->ray_length; - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_path_ray_depth) { - /* Ray Depth */ - const IntegratorStateCPU *state = sd->osl_path_state; - const IntegratorShadowStateCPU *shadow_state = sd->osl_shadow_path_state; - int f = (state) ? state->path.bounce : (shadow_state) ? shadow_state->shadow_path.bounce : 0; - return set_attribute_int(f, type, derivatives, val); - } - else if (name == u_path_diffuse_depth) { - /* Diffuse Ray Depth */ - const IntegratorStateCPU *state = sd->osl_path_state; - const IntegratorShadowStateCPU *shadow_state = sd->osl_shadow_path_state; - int f = (state) ? state->path.diffuse_bounce : - (shadow_state) ? shadow_state->shadow_path.diffuse_bounce : - 0; - return set_attribute_int(f, type, derivatives, val); - } - else if (name == u_path_glossy_depth) { - /* Glossy Ray Depth */ - const IntegratorStateCPU *state = sd->osl_path_state; - const IntegratorShadowStateCPU *shadow_state = sd->osl_shadow_path_state; - int f = (state) ? state->path.glossy_bounce : - (shadow_state) ? shadow_state->shadow_path.glossy_bounce : - 0; - return set_attribute_int(f, type, derivatives, val); - } - else if (name == u_path_transmission_depth) { - /* Transmission Ray Depth */ - const IntegratorStateCPU *state = sd->osl_path_state; - const IntegratorShadowStateCPU *shadow_state = sd->osl_shadow_path_state; - int f = (state) ? state->path.transmission_bounce : - (shadow_state) ? shadow_state->shadow_path.transmission_bounce : - 0; - return set_attribute_int(f, type, derivatives, val); - } - else if (name == u_path_transparent_depth) { - /* Transparent Ray Depth */ - const IntegratorStateCPU *state = sd->osl_path_state; - const IntegratorShadowStateCPU *shadow_state = sd->osl_shadow_path_state; - int f = (state) ? state->path.transparent_bounce : - (shadow_state) ? shadow_state->shadow_path.transparent_bounce : - 0; - return set_attribute_int(f, type, derivatives, val); - } - else if (name == u_ndc) { - /* NDC coordinates with special exception for orthographic projection. */ - OSLThreadData *tdata = kg->osl_tdata; - OSL::ShaderGlobals *globals = &tdata->globals; - float3 ndc[3]; - - if ((globals->raytype & PATH_RAY_CAMERA) && sd->object == OBJECT_NONE && - kernel_data.cam.type == CAMERA_ORTHOGRAPHIC) { - ndc[0] = camera_world_to_ndc(kg, sd, sd->ray_P); - - if (derivatives) { - ndc[1] = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(sd->ray_dP, 0.0f, 0.0f)) - - ndc[0]; - ndc[2] = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(0.0f, sd->ray_dP, 0.0f)) - - ndc[0]; - } - } - else { - ndc[0] = camera_world_to_ndc(kg, sd, sd->P); - - if (derivatives) { - ndc[1] = camera_world_to_ndc(kg, sd, sd->P + sd->dP.dx) - ndc[0]; - ndc[2] = camera_world_to_ndc(kg, sd, sd->P + sd->dP.dy) - ndc[0]; - } - } - - return set_attribute_float3(ndc, type, derivatives, val); - } - else - return false; -} - -bool OSLRenderServices::get_attribute(OSL::ShaderGlobals *sg, - bool derivatives, - ustring object_name, - TypeDesc type, - ustring name, - void *val) -{ - if (sg == NULL || sg->renderstate == NULL) - return false; - - ShaderData *sd = (ShaderData *)(sg->renderstate); - return get_attribute(sd, derivatives, object_name, type, name, val); -} - -bool OSLRenderServices::get_attribute( - ShaderData *sd, bool derivatives, ustring object_name, TypeDesc type, ustring name, void *val) -{ - const KernelGlobalsCPU *kg = sd->osl_globals; - int prim_type = 0; - int object; - - /* lookup of attribute on another object */ - if (object_name != u_empty) { - OSLGlobals::ObjectNameMap::iterator it = kg->osl->object_name_map.find(object_name); - - if (it == kg->osl->object_name_map.end()) - return false; - - object = it->second; - } - else { - object = sd->object; - prim_type = attribute_primitive_type(kg, sd); - - if (object == OBJECT_NONE) - return get_background_attribute(kg, sd, name, type, derivatives, val); - } - - /* find attribute on object */ - object = object * ATTR_PRIM_TYPES + prim_type; - OSLGlobals::AttributeMap &attribute_map = kg->osl->attribute_map[object]; - OSLGlobals::AttributeMap::iterator it = attribute_map.find(name); - - if (it != attribute_map.end()) { - const OSLGlobals::Attribute &attr = it->second; - - if (attr.desc.element != ATTR_ELEMENT_OBJECT) { - /* triangle and vertex attributes */ - if (get_primitive_attribute(kg, sd, attr, type, derivatives, val)) - return true; - else - return get_mesh_attribute(kg, sd, attr, type, derivatives, val); - } - else { - /* object attribute */ - return get_object_attribute(attr, type, derivatives, val); - } - } - else { - /* not found in attribute, check standard object info */ - bool is_std_object_attribute = get_object_standard_attribute( - kg, sd, name, type, derivatives, val); - - if (is_std_object_attribute) - return true; - - return get_background_attribute(kg, sd, name, type, derivatives, val); - } - - return false; -} - -bool OSLRenderServices::get_userdata( - bool derivatives, ustring name, TypeDesc type, OSL::ShaderGlobals *sg, void *val) -{ - return false; /* disabled by lockgeom */ -} - -#if OSL_LIBRARY_VERSION_CODE >= 11100 -TextureSystem::TextureHandle *OSLRenderServices::get_texture_handle(ustring filename, - OSL::ShadingContext *) -#else - -TextureSystem::TextureHandle *OSLRenderServices::get_texture_handle(ustring filename) -#endif -{ - OSLTextureHandleMap::iterator it = textures.find(filename); - - /* For non-OIIO textures, just return a pointer to our own OSLTextureHandle. */ - if (it != textures.end()) { - if (it->second->type != OSLTextureHandle::OIIO) { - return (TextureSystem::TextureHandle *)it->second.get(); - } - } - - /* Get handle from OpenImageIO. */ - OSL::TextureSystem *ts = texture_system; - TextureSystem::TextureHandle *handle = ts->get_texture_handle(filename); - if (handle == NULL) { - return NULL; - } - - /* Insert new OSLTextureHandle if needed. */ - if (it == textures.end()) { - textures.insert(filename, new OSLTextureHandle(OSLTextureHandle::OIIO)); - it = textures.find(filename); - } - - /* Assign OIIO texture handle and return. */ - it->second->oiio_handle = handle; - return (TextureSystem::TextureHandle *)it->second.get(); -} - -bool OSLRenderServices::good(TextureSystem::TextureHandle *texture_handle) -{ - OSLTextureHandle *handle = (OSLTextureHandle *)texture_handle; - - if (handle->oiio_handle) { - OSL::TextureSystem *ts = texture_system; - return ts->good(handle->oiio_handle); - } - else { - return true; - } -} - -bool OSLRenderServices::texture(ustring filename, - TextureHandle *texture_handle, - TexturePerthread *texture_thread_info, - TextureOpt &options, - OSL::ShaderGlobals *sg, - float s, - float t, - float dsdx, - float dtdx, - float dsdy, - float dtdy, - int nchannels, - float *result, - float *dresultds, - float *dresultdt, - ustring *errormessage) -{ - OSLTextureHandle *handle = (OSLTextureHandle *)texture_handle; - OSLTextureHandle::Type texture_type = (handle) ? handle->type : OSLTextureHandle::OIIO; - ShaderData *sd = (ShaderData *)(sg->renderstate); - KernelGlobals kernel_globals = sd->osl_globals; - bool status = false; - - switch (texture_type) { - case OSLTextureHandle::BEVEL: { - /* Bevel shader hack. */ - if (nchannels >= 3) { - const IntegratorStateCPU *state = sd->osl_path_state; - if (state) { - int num_samples = (int)s; - float radius = t; - float3 N = svm_bevel(kernel_globals, state, sd, radius, num_samples); - result[0] = N.x; - result[1] = N.y; - result[2] = N.z; - status = true; - } - } - break; - } - case OSLTextureHandle::AO: { - /* AO shader hack. */ - const IntegratorStateCPU *state = sd->osl_path_state; - if (state) { - int num_samples = (int)s; - float radius = t; - float3 N = make_float3(dsdx, dtdx, dsdy); - int flags = 0; - if ((int)dtdy) { - flags |= NODE_AO_INSIDE; - } - if ((int)options.sblur) { - flags |= NODE_AO_ONLY_LOCAL; - } - if ((int)options.tblur) { - flags |= NODE_AO_GLOBAL_RADIUS; - } - result[0] = svm_ao(kernel_globals, state, sd, N, radius, num_samples, flags); - status = true; - } - break; - } - case OSLTextureHandle::SVM: { - /* Packed texture. */ - float4 rgba = kernel_tex_image_interp(kernel_globals, handle->svm_slot, s, 1.0f - t); - - result[0] = rgba[0]; - if (nchannels > 1) - result[1] = rgba[1]; - if (nchannels > 2) - result[2] = rgba[2]; - if (nchannels > 3) - result[3] = rgba[3]; - status = true; - break; - } - case OSLTextureHandle::IES: { - /* IES light. */ - result[0] = kernel_ies_interp(kernel_globals, handle->svm_slot, s, t); - status = true; - break; - } - case OSLTextureHandle::OIIO: { - /* OpenImageIO texture cache. */ - OSL::TextureSystem *ts = texture_system; - - if (handle && handle->oiio_handle) { - if (texture_thread_info == NULL) { - OSLThreadData *tdata = kernel_globals->osl_tdata; - texture_thread_info = tdata->oiio_thread_info; - } - - status = ts->texture(handle->oiio_handle, - texture_thread_info, - options, - s, - t, - dsdx, - dtdx, - dsdy, - dtdy, - nchannels, - result, - dresultds, - dresultdt); - } - else { - status = ts->texture(filename, - options, - s, - t, - dsdx, - dtdx, - dsdy, - dtdy, - nchannels, - result, - dresultds, - dresultdt); - } - - if (!status) { - /* This might be slow, but prevents error messages leak and - * other nasty stuff happening. */ - ts->geterror(); - } - else if (handle && handle->processor) { - ColorSpaceManager::to_scene_linear(handle->processor, result, nchannels); - } - break; - } - } - - if (!status) { - if (nchannels == 3 || nchannels == 4) { - result[0] = 1.0f; - result[1] = 0.0f; - result[2] = 1.0f; - - if (nchannels == 4) - result[3] = 1.0f; - } - } - - return status; -} - -bool OSLRenderServices::texture3d(ustring filename, - TextureHandle *texture_handle, - TexturePerthread *texture_thread_info, - TextureOpt &options, - OSL::ShaderGlobals *sg, - const OSL::Vec3 &P, - const OSL::Vec3 &dPdx, - const OSL::Vec3 &dPdy, - const OSL::Vec3 &dPdz, - int nchannels, - float *result, - float *dresultds, - float *dresultdt, - float *dresultdr, - ustring *errormessage) -{ - OSLTextureHandle *handle = (OSLTextureHandle *)texture_handle; - OSLTextureHandle::Type texture_type = (handle) ? handle->type : OSLTextureHandle::OIIO; - bool status = false; - - switch (texture_type) { - case OSLTextureHandle::SVM: { - /* Packed texture. */ - ShaderData *sd = (ShaderData *)(sg->renderstate); - KernelGlobals kernel_globals = sd->osl_globals; - int slot = handle->svm_slot; - float3 P_float3 = make_float3(P.x, P.y, P.z); - float4 rgba = kernel_tex_image_interp_3d(kernel_globals, slot, P_float3, INTERPOLATION_NONE); - - result[0] = rgba[0]; - if (nchannels > 1) - result[1] = rgba[1]; - if (nchannels > 2) - result[2] = rgba[2]; - if (nchannels > 3) - result[3] = rgba[3]; - status = true; - break; - } - case OSLTextureHandle::OIIO: { - /* OpenImageIO texture cache. */ - OSL::TextureSystem *ts = texture_system; - - if (handle && handle->oiio_handle) { - if (texture_thread_info == NULL) { - ShaderData *sd = (ShaderData *)(sg->renderstate); - KernelGlobals kernel_globals = sd->osl_globals; - OSLThreadData *tdata = kernel_globals->osl_tdata; - texture_thread_info = tdata->oiio_thread_info; - } - - status = ts->texture3d(handle->oiio_handle, - texture_thread_info, - options, - P, - dPdx, - dPdy, - dPdz, - nchannels, - result, - dresultds, - dresultdt, - dresultdr); - } - else { - status = ts->texture3d(filename, - options, - P, - dPdx, - dPdy, - dPdz, - nchannels, - result, - dresultds, - dresultdt, - dresultdr); - } - - if (!status) { - /* This might be slow, but prevents error messages leak and - * other nasty stuff happening. */ - ts->geterror(); - } - else if (handle && handle->processor) { - ColorSpaceManager::to_scene_linear(handle->processor, result, nchannels); - } - break; - } - case OSLTextureHandle::IES: - case OSLTextureHandle::AO: - case OSLTextureHandle::BEVEL: { - status = false; - break; - } - } - - if (!status) { - if (nchannels == 3 || nchannels == 4) { - result[0] = 1.0f; - result[1] = 0.0f; - result[2] = 1.0f; - - if (nchannels == 4) - result[3] = 1.0f; - } - } - - return status; -} - -bool OSLRenderServices::environment(ustring filename, - TextureHandle *texture_handle, - TexturePerthread *thread_info, - TextureOpt &options, - OSL::ShaderGlobals *sg, - const OSL::Vec3 &R, - const OSL::Vec3 &dRdx, - const OSL::Vec3 &dRdy, - int nchannels, - float *result, - float *dresultds, - float *dresultdt, - ustring *errormessage) -{ - OSLTextureHandle *handle = (OSLTextureHandle *)texture_handle; - OSL::TextureSystem *ts = texture_system; - bool status = false; - - if (handle && handle->oiio_handle) { - if (thread_info == NULL) { - ShaderData *sd = (ShaderData *)(sg->renderstate); - KernelGlobals kernel_globals = sd->osl_globals; - OSLThreadData *tdata = kernel_globals->osl_tdata; - thread_info = tdata->oiio_thread_info; - } - - status = ts->environment(handle->oiio_handle, - thread_info, - options, - R, - dRdx, - dRdy, - nchannels, - result, - dresultds, - dresultdt); - } - else { - status = ts->environment( - filename, options, R, dRdx, dRdy, nchannels, result, dresultds, dresultdt); - } - - if (!status) { - if (nchannels == 3 || nchannels == 4) { - result[0] = 1.0f; - result[1] = 0.0f; - result[2] = 1.0f; - - if (nchannels == 4) - result[3] = 1.0f; - } - } - else if (handle && handle->processor) { - ColorSpaceManager::to_scene_linear(handle->processor, result, nchannels); - } - - return status; -} - -#if OSL_LIBRARY_VERSION_CODE >= 11100 -bool OSLRenderServices::get_texture_info(ustring filename, - TextureHandle *texture_handle, - TexturePerthread *, - OSL::ShadingContext *, - int subimage, - ustring dataname, - TypeDesc datatype, - void *data, - ustring *) -#else -bool OSLRenderServices::get_texture_info(OSL::ShaderGlobals *sg, - ustring filename, - TextureHandle *texture_handle, - int subimage, - ustring dataname, - TypeDesc datatype, - void *data) -#endif -{ - OSLTextureHandle *handle = (OSLTextureHandle *)texture_handle; - - /* No texture info for other texture types. */ - if (handle && handle->type != OSLTextureHandle::OIIO) { - return false; - } - - /* Get texture info from OpenImageIO. */ - OSL::TextureSystem *ts = texture_system; - return ts->get_texture_info(filename, subimage, dataname, datatype, data); -} - -int OSLRenderServices::pointcloud_search(OSL::ShaderGlobals *sg, - ustring filename, - const OSL::Vec3 ¢er, - float radius, - int max_points, - bool sort, - size_t *out_indices, - float *out_distances, - int derivs_offset) -{ - return 0; -} - -int OSLRenderServices::pointcloud_get(OSL::ShaderGlobals *sg, - ustring filename, - size_t *indices, - int count, - ustring attr_name, - TypeDesc attr_type, - void *out_data) -{ - return 0; -} - -bool OSLRenderServices::pointcloud_write(OSL::ShaderGlobals *sg, - ustring filename, - const OSL::Vec3 &pos, - int nattribs, - const ustring *names, - const TypeDesc *types, - const void **data) -{ - return false; -} - -bool OSLRenderServices::trace(TraceOpt &options, - OSL::ShaderGlobals *sg, - const OSL::Vec3 &P, - const OSL::Vec3 &dPdx, - const OSL::Vec3 &dPdy, - const OSL::Vec3 &R, - const OSL::Vec3 &dRdx, - const OSL::Vec3 &dRdy) -{ - /* todo: options.shader support, maybe options.traceset */ - ShaderData *sd = (ShaderData *)(sg->renderstate); - - /* setup ray */ - Ray ray; - - ray.P = TO_FLOAT3(P); - ray.D = TO_FLOAT3(R); - ray.t = (options.maxdist == 1.0e30f) ? FLT_MAX : options.maxdist - options.mindist; - ray.time = sd->time; - - if (options.mindist == 0.0f) { - /* avoid self-intersections */ - if (ray.P == sd->P) { - bool transmit = (dot(sd->Ng, ray.D) < 0.0f); - ray.P = ray_offset(sd->P, (transmit) ? -sd->Ng : sd->Ng); - } - } - else { - /* offset for minimum distance */ - ray.P += options.mindist * ray.D; - } - - /* ray differentials */ - differential3 dP; - dP.dx = TO_FLOAT3(dPdx); - dP.dy = TO_FLOAT3(dPdy); - ray.dP = differential_make_compact(dP); - differential3 dD; - dD.dx = TO_FLOAT3(dRdx); - dD.dy = TO_FLOAT3(dRdy); - ray.dD = differential_make_compact(dD); - - /* allocate trace data */ - OSLTraceData *tracedata = (OSLTraceData *)sg->tracedata; - tracedata->ray = ray; - tracedata->setup = false; - tracedata->init = true; - tracedata->hit = false; - tracedata->sd.osl_globals = sd->osl_globals; - - const KernelGlobalsCPU *kg = sd->osl_globals; - - /* Can't raytrace from shaders like displacement, before BVH exists. */ - if (kernel_data.bvh.bvh_layout == BVH_LAYOUT_NONE) { - return false; - } - - /* Raytrace, leaving out shadow opaque to avoid early exit. */ - uint visibility = PATH_RAY_ALL_VISIBILITY - PATH_RAY_SHADOW_OPAQUE; - tracedata->hit = scene_intersect(kg, &ray, visibility, &tracedata->isect); - return tracedata->hit; -} - -bool OSLRenderServices::getmessage(OSL::ShaderGlobals *sg, - ustring source, - ustring name, - TypeDesc type, - void *val, - bool derivatives) -{ - OSLTraceData *tracedata = (OSLTraceData *)sg->tracedata; - - if (source == u_trace && tracedata->init) { - if (name == u_hit) { - return set_attribute_int(tracedata->hit, type, derivatives, val); - } - else if (tracedata->hit) { - if (name == u_hitdist) { - float f[3] = {tracedata->isect.t, 0.0f, 0.0f}; - return set_attribute_float(f, type, derivatives, val); - } - else { - ShaderData *sd = &tracedata->sd; - const KernelGlobalsCPU *kg = sd->osl_globals; - - if (!tracedata->setup) { - /* lazy shader data setup */ - shader_setup_from_ray(kg, sd, &tracedata->ray, &tracedata->isect); - tracedata->setup = true; - } - - if (name == u_N) { - return set_attribute_float3(sd->N, type, derivatives, val); - } - else if (name == u_Ng) { - return set_attribute_float3(sd->Ng, type, derivatives, val); - } - else if (name == u_P) { - float3 f[3] = {sd->P, sd->dP.dx, sd->dP.dy}; - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_I) { - float3 f[3] = {sd->I, sd->dI.dx, sd->dI.dy}; - return set_attribute_float3(f, type, derivatives, val); - } - else if (name == u_u) { - float f[3] = {sd->u, sd->du.dx, sd->du.dy}; - return set_attribute_float(f, type, derivatives, val); - } - else if (name == u_v) { - float f[3] = {sd->v, sd->dv.dx, sd->dv.dy}; - return set_attribute_float(f, type, derivatives, val); - } - - return get_attribute(sd, derivatives, u_empty, type, name, val); - } - } - } - - return false; -} - -CCL_NAMESPACE_END |