diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shader.cpp')
-rw-r--r-- | intern/cycles/kernel/osl/shader.cpp | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/intern/cycles/kernel/osl/shader.cpp b/intern/cycles/kernel/osl/shader.cpp deleted file mode 100644 index af96c0070e3..00000000000 --- a/intern/cycles/kernel/osl/shader.cpp +++ /dev/null @@ -1,417 +0,0 @@ -/* SPDX-License-Identifier: Apache-2.0 - * Copyright 2011-2022 Blender Foundation */ - -#include <OSL/oslexec.h> - -// clang-format off -#include "kernel/device/cpu/compat.h" -#include "kernel/device/cpu/globals.h" - -#include "kernel/types.h" - -#include "kernel/geom/object.h" - -#include "kernel/integrator/state.h" - -#include "kernel/osl/closures.h" -#include "kernel/osl/globals.h" -#include "kernel/osl/services.h" -#include "kernel/osl/shader.h" -// clang-format on - -#include "scene/attribute.h" - -CCL_NAMESPACE_BEGIN - -/* Threads */ - -void OSLShader::thread_init(KernelGlobalsCPU *kg, OSLGlobals *osl_globals) -{ - /* no osl used? */ - if (!osl_globals->use) { - kg->osl = NULL; - return; - } - - /* Per thread kernel data init. */ - kg->osl = osl_globals; - - OSL::ShadingSystem *ss = kg->osl->ss; - OSLThreadData *tdata = new OSLThreadData(); - - memset((void *)&tdata->globals, 0, sizeof(OSL::ShaderGlobals)); - tdata->globals.tracedata = &tdata->tracedata; - tdata->globals.flipHandedness = false; - tdata->osl_thread_info = ss->create_thread_info(); - tdata->context = ss->get_context(tdata->osl_thread_info); - - tdata->oiio_thread_info = osl_globals->ts->get_perthread_info(); - - kg->osl_ss = (OSLShadingSystem *)ss; - kg->osl_tdata = tdata; -} - -void OSLShader::thread_free(KernelGlobalsCPU *kg) -{ - if (!kg->osl) - return; - - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; - OSLThreadData *tdata = kg->osl_tdata; - ss->release_context(tdata->context); - - ss->destroy_thread_info(tdata->osl_thread_info); - - delete tdata; - - kg->osl = NULL; - kg->osl_ss = NULL; - kg->osl_tdata = NULL; -} - -/* Globals */ - -static void shaderdata_to_shaderglobals(const KernelGlobalsCPU *kg, - ShaderData *sd, - const void *state, - uint32_t path_flag, - OSLThreadData *tdata) -{ - OSL::ShaderGlobals *globals = &tdata->globals; - - /* copy from shader data to shader globals */ - globals->P = TO_VEC3(sd->P); - globals->dPdx = TO_VEC3(sd->dP.dx); - globals->dPdy = TO_VEC3(sd->dP.dy); - globals->I = TO_VEC3(sd->I); - globals->dIdx = TO_VEC3(sd->dI.dx); - globals->dIdy = TO_VEC3(sd->dI.dy); - globals->N = TO_VEC3(sd->N); - globals->Ng = TO_VEC3(sd->Ng); - globals->u = sd->u; - globals->dudx = sd->du.dx; - globals->dudy = sd->du.dy; - globals->v = sd->v; - globals->dvdx = sd->dv.dx; - globals->dvdy = sd->dv.dy; - globals->dPdu = TO_VEC3(sd->dPdu); - globals->dPdv = TO_VEC3(sd->dPdv); - globals->surfacearea = 1.0f; - globals->time = sd->time; - - /* booleans */ - globals->raytype = path_flag; - globals->backfacing = (sd->flag & SD_BACKFACING); - - /* shader data to be used in services callbacks */ - globals->renderstate = sd; - - /* hacky, we leave it to services to fetch actual object matrix */ - globals->shader2common = sd; - globals->object2common = sd; - - /* must be set to NULL before execute */ - globals->Ci = NULL; - - /* clear trace data */ - tdata->tracedata.init = false; - - /* Used by render-services. */ - sd->osl_globals = kg; - if (path_flag & PATH_RAY_SHADOW) { - sd->osl_path_state = nullptr; - sd->osl_shadow_path_state = (const IntegratorShadowStateCPU *)state; - } - else { - sd->osl_path_state = (const IntegratorStateCPU *)state; - sd->osl_shadow_path_state = nullptr; - } -} - -/* Surface */ - -static void flatten_surface_closure_tree(ShaderData *sd, - uint32_t path_flag, - const OSL::ClosureColor *closure, - float3 weight = make_float3(1.0f, 1.0f, 1.0f)) -{ - /* OSL gives us a closure tree, we flatten it into arrays per - * closure type, for evaluation, sampling, etc later on. */ - - switch (closure->id) { - case OSL::ClosureColor::MUL: { - OSL::ClosureMul *mul = (OSL::ClosureMul *)closure; - flatten_surface_closure_tree(sd, path_flag, mul->closure, TO_FLOAT3(mul->weight) * weight); - break; - } - case OSL::ClosureColor::ADD: { - OSL::ClosureAdd *add = (OSL::ClosureAdd *)closure; - flatten_surface_closure_tree(sd, path_flag, add->closureA, weight); - flatten_surface_closure_tree(sd, path_flag, add->closureB, weight); - break; - } - default: { - OSL::ClosureComponent *comp = (OSL::ClosureComponent *)closure; - CClosurePrimitive *prim = (CClosurePrimitive *)comp->data(); - - if (prim) { -#ifdef OSL_SUPPORTS_WEIGHTED_CLOSURE_COMPONENTS - weight = weight * TO_FLOAT3(comp->w); -#endif - prim->setup(sd, path_flag, weight); - } - break; - } - } -} - -void OSLShader::eval_surface(const KernelGlobalsCPU *kg, - const void *state, - ShaderData *sd, - uint32_t path_flag) -{ - /* setup shader globals from shader data */ - OSLThreadData *tdata = kg->osl_tdata; - shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); - - /* execute shader for this point */ - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; - OSL::ShaderGlobals *globals = &tdata->globals; - OSL::ShadingContext *octx = tdata->context; - 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); - } - - /* flatten closure tree */ - if (globals->Ci) - flatten_surface_closure_tree(sd, path_flag, globals->Ci); -} - -/* Background */ - -static void flatten_background_closure_tree(ShaderData *sd, - const OSL::ClosureColor *closure, - float3 weight = make_float3(1.0f, 1.0f, 1.0f)) -{ - /* OSL gives us a closure tree, if we are shading for background there - * is only one supported closure type at the moment, which has no evaluation - * functions, so we just sum the weights */ - - switch (closure->id) { - case OSL::ClosureColor::MUL: { - OSL::ClosureMul *mul = (OSL::ClosureMul *)closure; - flatten_background_closure_tree(sd, mul->closure, weight * TO_FLOAT3(mul->weight)); - break; - } - case OSL::ClosureColor::ADD: { - OSL::ClosureAdd *add = (OSL::ClosureAdd *)closure; - - flatten_background_closure_tree(sd, add->closureA, weight); - flatten_background_closure_tree(sd, add->closureB, weight); - break; - } - default: { - OSL::ClosureComponent *comp = (OSL::ClosureComponent *)closure; - CClosurePrimitive *prim = (CClosurePrimitive *)comp->data(); - - if (prim) { -#ifdef OSL_SUPPORTS_WEIGHTED_CLOSURE_COMPONENTS - weight = weight * TO_FLOAT3(comp->w); -#endif - prim->setup(sd, 0, weight); - } - break; - } - } -} - -void OSLShader::eval_background(const KernelGlobalsCPU *kg, - const void *state, - ShaderData *sd, - uint32_t path_flag) -{ - /* setup shader globals from shader data */ - OSLThreadData *tdata = kg->osl_tdata; - shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); - - /* execute shader for this point */ - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; - OSL::ShaderGlobals *globals = &tdata->globals; - OSL::ShadingContext *octx = tdata->context; - - if (kg->osl->background_state) { - ss->execute(octx, *(kg->osl->background_state), *globals); - } - - /* return background color immediately */ - if (globals->Ci) - flatten_background_closure_tree(sd, globals->Ci); -} - -/* Volume */ - -static void flatten_volume_closure_tree(ShaderData *sd, - const OSL::ClosureColor *closure, - float3 weight = make_float3(1.0f, 1.0f, 1.0f)) -{ - /* OSL gives us a closure tree, we flatten it into arrays per - * closure type, for evaluation, sampling, etc later on. */ - - switch (closure->id) { - case OSL::ClosureColor::MUL: { - OSL::ClosureMul *mul = (OSL::ClosureMul *)closure; - flatten_volume_closure_tree(sd, mul->closure, TO_FLOAT3(mul->weight) * weight); - break; - } - case OSL::ClosureColor::ADD: { - OSL::ClosureAdd *add = (OSL::ClosureAdd *)closure; - flatten_volume_closure_tree(sd, add->closureA, weight); - flatten_volume_closure_tree(sd, add->closureB, weight); - break; - } - default: { - OSL::ClosureComponent *comp = (OSL::ClosureComponent *)closure; - CClosurePrimitive *prim = (CClosurePrimitive *)comp->data(); - - if (prim) { -#ifdef OSL_SUPPORTS_WEIGHTED_CLOSURE_COMPONENTS - weight = weight * TO_FLOAT3(comp->w); -#endif - prim->setup(sd, 0, weight); - } - } - } -} - -void OSLShader::eval_volume(const KernelGlobalsCPU *kg, - const void *state, - ShaderData *sd, - uint32_t path_flag) -{ - /* setup shader globals from shader data */ - OSLThreadData *tdata = kg->osl_tdata; - shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); - - /* execute shader */ - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; - OSL::ShaderGlobals *globals = &tdata->globals; - OSL::ShadingContext *octx = tdata->context; - int shader = sd->shader & SHADER_MASK; - - if (kg->osl->volume_state[shader]) { - ss->execute(octx, *(kg->osl->volume_state[shader]), *globals); - } - - /* flatten closure tree */ - if (globals->Ci) - flatten_volume_closure_tree(sd, globals->Ci); -} - -/* Displacement */ - -void OSLShader::eval_displacement(const KernelGlobalsCPU *kg, const void *state, ShaderData *sd) -{ - /* setup shader globals from shader data */ - OSLThreadData *tdata = kg->osl_tdata; - - shaderdata_to_shaderglobals(kg, sd, state, 0, tdata); - - /* execute shader */ - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; - OSL::ShaderGlobals *globals = &tdata->globals; - OSL::ShadingContext *octx = tdata->context; - int shader = sd->shader & SHADER_MASK; - - if (kg->osl->displacement_state[shader]) { - ss->execute(octx, *(kg->osl->displacement_state[shader]), *globals); - } - - /* get back position */ - sd->P = TO_FLOAT3(globals->P); -} - -/* Attributes */ - -int OSLShader::find_attribute(const KernelGlobalsCPU *kg, - const ShaderData *sd, - uint id, - AttributeDescriptor *desc) -{ - /* for OSL, a hash map is used to lookup the attribute by name. */ - int object = sd->object * ATTR_PRIM_TYPES; - - OSLGlobals::AttributeMap &attr_map = kg->osl->attribute_map[object]; - ustring stdname(std::string("geom:") + - std::string(Attribute::standard_name((AttributeStandard)id))); - OSLGlobals::AttributeMap::const_iterator it = attr_map.find(stdname); - - if (it != attr_map.end()) { - const OSLGlobals::Attribute &osl_attr = it->second; - *desc = osl_attr.desc; - - if (sd->prim == PRIM_NONE && (AttributeElement)osl_attr.desc.element != ATTR_ELEMENT_MESH) { - desc->offset = ATTR_STD_NOT_FOUND; - return ATTR_STD_NOT_FOUND; - } - - /* return result */ - if (osl_attr.desc.element == ATTR_ELEMENT_NONE) { - desc->offset = ATTR_STD_NOT_FOUND; - } - return desc->offset; - } - else { - desc->offset = ATTR_STD_NOT_FOUND; - return (int)ATTR_STD_NOT_FOUND; - } -} - -CCL_NAMESPACE_END |