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blender/intern/cycles/kernel/osl/osl_shader.cpp

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Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "kernel_compat_cpu.h"
#include "kernel_types.h"
#include "kernel_globals.h"
#include "kernel_object.h"
#include "osl_services.h"
#include "osl_shader.h"
#include "util_foreach.h"
#include <OSL/oslexec.h>
#include <oslexec_pvt.h>
CCL_NAMESPACE_BEGIN
Cycles: OSL build fixes, based on patch from erwin94.
2011-05-14 09:42:02 +00:00
tls_ptr(OSLGlobals::ThreadData, OSLGlobals::thread_data);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/* Threads */
void OSLShader::thread_init(KernelGlobals *kg)
{
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = new OSLGlobals::ThreadData();
memset(&tdata->globals, 0, sizeof(OSL::ShaderGlobals));
tdata->thread_info = ssi->create_thread_info();
tls_set(kg->osl.thread_data, tdata);
((OSLRenderServices*)ssi->renderer())->thread_init(kg);
}
void OSLShader::thread_free(KernelGlobals *kg)
{
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
ssi->destroy_thread_info(tdata->thread_info);
delete tdata;
}
/* Globals */
#define TO_VEC3(v) (*(OSL::Vec3*)&(v))
#define TO_COLOR3(v) (*(OSL::Color3*)&(v))
#define TO_FLOAT3(v) make_float3(v[0], v[1], v[2])
static void shaderdata_to_shaderglobals(KernelGlobals *kg, ShaderData *sd,
int path_flag, OSL::ShaderGlobals *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 = (sd->object == ~0)? 1.0f: object_surface_area(kg, sd->object);
/* booleans */
Cycles: * Add max diffuse/glossy/transmission bounces * Add separate min/max for transparent depth * Updated/added some presets that use these options * Add ray visibility options for objects, to hide them from camera/diffuse/glossy/transmission/shadow rays * Is singular ray output for light path node Details here: http://wiki.blender.org/index.php/Dev:2.5/Source/Render/Cycles/LightPaths
2011-09-01 15:53:36 +00:00
globals->raytype = path_flag; /* todo: add our own ray types */
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
globals->backfacing = (sd->flag & SD_BACKFACING);
/* don't know yet if we need this */
globals->flipHandedness = false;
/* 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;
}
/* Surface */
static void flatten_surface_closure_tree(ShaderData *sd, bool no_glossy,
const OSL::ClosureColor *closure, float3 weight = make_float3(1.0f, 1.0f, 1.0f))
{
/* OSL gives use a closure tree, we flatten it into arrays per
* closure type, for evaluation, sampling, etc later on. */
if(closure->type == OSL::ClosureColor::COMPONENT) {
OSL::ClosureComponent *comp = (OSL::ClosureComponent*)closure;
OSL::ClosurePrimitive *prim = (OSL::ClosurePrimitive*)comp->data();
if(prim) {
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
ShaderClosure sc;
sc.prim = prim;
sc.weight = weight;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
switch(prim->category()) {
case ClosurePrimitive::BSDF: {
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
if(sd->num_closure == MAX_CLOSURE)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
return;
OSL::BSDFClosure *bsdf = (OSL::BSDFClosure*)prim;
ustring scattering = bsdf->scattering();
/* no caustics option */
if(no_glossy && scattering == OSL::Labels::GLOSSY)
return;
/* sample weight */
float albedo = bsdf->albedo(TO_VEC3(sd->I));
float sample_weight = fabsf(average(weight))*albedo;
float sample_sum = sd->osl_closure.bsdf_sample_sum + sample_weight;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sc.sample_weight = sample_weight;
sc.type = CLOSURE_BSDF_ID;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
sd->osl_closure.bsdf_sample_sum = sample_sum;
/* scattering flags */
if(scattering == OSL::Labels::DIFFUSE)
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
sd->flag |= SD_BSDF|SD_BSDF_HAS_EVAL;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
else if(scattering == OSL::Labels::GLOSSY)
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
sd->flag |= SD_BSDF|SD_BSDF_HAS_EVAL|SD_BSDF_GLOSSY;
else
sd->flag |= SD_BSDF;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/* add */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sd->closure[sd->num_closure++] = sc;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
break;
}
case ClosurePrimitive::Emissive: {
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
if(sd->num_closure == MAX_CLOSURE)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
return;
/* sample weight */
float sample_weight = fabsf(average(weight));
float sample_sum = sd->osl_closure.emissive_sample_sum + sample_weight;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sc.sample_weight = sample_weight;
sc.type = CLOSURE_EMISSION_ID;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
sd->osl_closure.emissive_sample_sum = sample_sum;
/* flag */
sd->flag |= SD_EMISSION;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sd->closure[sd->num_closure++] = sc;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
break;
}
case ClosurePrimitive::Holdout:
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
if(sd->num_closure == MAX_CLOSURE)
return;
sc.sample_weight = 0.0f;
sc.type = CLOSURE_HOLDOUT_ID;
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
sd->flag |= SD_HOLDOUT;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sd->closure[sd->num_closure++] = sc;
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
break;
case ClosurePrimitive::BSSRDF:
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
case ClosurePrimitive::Debug:
break; /* not implemented */
case ClosurePrimitive::Background:
case ClosurePrimitive::Volume:
break; /* not relevant */
}
}
}
else if(closure->type == OSL::ClosureColor::MUL) {
OSL::ClosureMul *mul = (OSL::ClosureMul*)closure;
flatten_surface_closure_tree(sd, no_glossy, mul->closure, TO_FLOAT3(mul->weight) * weight);
}
else if(closure->type == OSL::ClosureColor::ADD) {
OSL::ClosureAdd *add = (OSL::ClosureAdd*)closure;
flatten_surface_closure_tree(sd, no_glossy, add->closureA, weight);
flatten_surface_closure_tree(sd, no_glossy, add->closureB, weight);
}
}
void OSLShader::eval_surface(KernelGlobals *kg, ShaderData *sd, float randb, int path_flag)
{
/* gather pointers */
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
OSL::ShaderGlobals *globals = &tdata->globals;
OSL::pvt::ShadingContext *ctx = ssi->get_context(tdata->thread_info);
/* setup shader globals from shader data */
sd->osl_ctx = ctx;
shaderdata_to_shaderglobals(kg, sd, path_flag, globals);
/* execute shader for this point */
Cycles: internal changes that should have no effect on user level yet, added shader flags for various purposes, and some code for light types other than points.
2011-09-27 20:37:24 +00:00
int shader = sd->shader & SHADER_MASK;
Cycles: replace surface/volume sockets in output nodes with a single shader socket, decided it's better to render objects as either surface or volume. This may break the volume rendering patch, but shaders with volume closures still get tagged as having volume closures, so it should be fixable without too many changes.
2011-10-12 15:42:35 +00:00
if(kg->osl.state[shader])
ctx->execute(OSL::pvt::ShadUseSurface, *(kg->osl.state[shader]), *globals);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/* flatten closure tree */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sd->num_closure = 0;
sd->randb_closure = randb;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
if(globals->Ci) {
bool no_glossy = (path_flag & PATH_RAY_DIFFUSE) && kernel_data.integrator.no_caustics;
flatten_surface_closure_tree(sd, no_glossy, globals->Ci);
}
}
/* Background */
static float3 flatten_background_closure_tree(const OSL::ClosureColor *closure)
{
/* OSL gives use 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 */
if(closure->type == OSL::ClosureColor::COMPONENT) {
OSL::ClosureComponent *comp = (OSL::ClosureComponent*)closure;
OSL::ClosurePrimitive *prim = (OSL::ClosurePrimitive*)comp->data();
if(prim && prim->category() == OSL::ClosurePrimitive::Background)
return make_float3(1.0f, 1.0f, 1.0f);
}
else if(closure->type == OSL::ClosureColor::MUL) {
OSL::ClosureMul *mul = (OSL::ClosureMul*)closure;
return TO_FLOAT3(mul->weight) * flatten_background_closure_tree(mul->closure);
}
else if(closure->type == OSL::ClosureColor::ADD) {
OSL::ClosureAdd *add = (OSL::ClosureAdd*)closure;
return flatten_background_closure_tree(add->closureA) +
flatten_background_closure_tree(add->closureB);
}
return make_float3(0.0f, 0.0f, 0.0f);
}
float3 OSLShader::eval_background(KernelGlobals *kg, ShaderData *sd, int path_flag)
{
/* gather pointers */
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
OSL::ShaderGlobals *globals = &tdata->globals;
OSL::pvt::ShadingContext *ctx = ssi->get_context(tdata->thread_info);
/* setup shader globals from shader data */
sd->osl_ctx = ctx;
shaderdata_to_shaderglobals(kg, sd, path_flag, globals);
/* execute shader for this point */
if(kg->osl.background_state)
ctx->execute(OSL::pvt::ShadUseSurface, *kg->osl.background_state, *globals);
/* return background color immediately */
if(globals->Ci)
return flatten_background_closure_tree(globals->Ci);
return make_float3(0.0f, 0.0f, 0.0f);
}
/* 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 use a closure tree, we flatten it into arrays per
* closure type, for evaluation, sampling, etc later on. */
if(closure->type == OSL::ClosureColor::COMPONENT) {
OSL::ClosureComponent *comp = (OSL::ClosureComponent*)closure;
OSL::ClosurePrimitive *prim = (OSL::ClosurePrimitive*)comp->data();
if(prim) {
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
ShaderClosure sc;
sc.prim = prim;
sc.weight = weight;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
switch(prim->category()) {
case ClosurePrimitive::Volume: {
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
if(sd->num_closure == MAX_CLOSURE)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
return;
/* sample weight */
float sample_weight = fabsf(average(weight));
float sample_sum = sd->osl_closure.volume_sample_sum + sample_weight;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sc.sample_weight = sample_weight;
sc.type = CLOSURE_VOLUME_ID;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
sd->osl_closure.volume_sample_sum = sample_sum;
/* add */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
sd->closure[sd->num_closure++] = sc;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
break;
}
case ClosurePrimitive::Holdout:
case ClosurePrimitive::Debug:
break; /* not implemented */
case ClosurePrimitive::Background:
case ClosurePrimitive::BSDF:
case ClosurePrimitive::Emissive:
case ClosurePrimitive::BSSRDF:
break; /* not relevant */
}
}
}
else if(closure->type == OSL::ClosureColor::MUL) {
OSL::ClosureMul *mul = (OSL::ClosureMul*)closure;
flatten_volume_closure_tree(sd, mul->closure, TO_FLOAT3(mul->weight) * weight);
}
else if(closure->type == 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);
}
}
void OSLShader::eval_volume(KernelGlobals *kg, ShaderData *sd, float randb, int path_flag)
{
/* gather pointers */
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
OSL::ShaderGlobals *globals = &tdata->globals;
OSL::pvt::ShadingContext *ctx = ssi->get_context(tdata->thread_info);
/* setup shader globals from shader data */
sd->osl_ctx = ctx;
shaderdata_to_shaderglobals(kg, sd, path_flag, globals);
/* execute shader */
Cycles: internal changes that should have no effect on user level yet, added shader flags for various purposes, and some code for light types other than points.
2011-09-27 20:37:24 +00:00
int shader = sd->shader & SHADER_MASK;
Cycles: replace surface/volume sockets in output nodes with a single shader socket, decided it's better to render objects as either surface or volume. This may break the volume rendering patch, but shaders with volume closures still get tagged as having volume closures, so it should be fixable without too many changes.
2011-10-12 15:42:35 +00:00
if(kg->osl.state[shader])
ctx->execute(OSL::pvt::ShadUseSurface, *(kg->osl.state[shader]), *globals);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/* retrieve resulting closures */
sd->osl_closure.volume_sample_sum = 0.0f;
sd->osl_closure.num_volume = 0;
sd->osl_closure.randb = randb;
if(globals->Ci)
flatten_volume_closure_tree(sd, globals->Ci);
}
/* Displacement */
void OSLShader::eval_displacement(KernelGlobals *kg, ShaderData *sd)
{
/* gather pointers */
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
OSL::ShaderGlobals *globals = &tdata->globals;
OSL::pvt::ShadingContext *ctx = ssi->get_context(tdata->thread_info);
/* setup shader globals from shader data */
sd->osl_ctx = ctx;
shaderdata_to_shaderglobals(kg, sd, 0, globals);
/* execute shader */
Cycles: internal changes that should have no effect on user level yet, added shader flags for various purposes, and some code for light types other than points.
2011-09-27 20:37:24 +00:00
int shader = sd->shader & SHADER_MASK;
if(kg->osl.displacement_state[shader])
ctx->execute(OSL::pvt::ShadUseSurface, *(kg->osl.displacement_state[shader]), *globals);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
/* get back position */
sd->P = TO_FLOAT3(globals->P);
}
void OSLShader::release(KernelGlobals *kg, const ShaderData *sd)
{
OSL::pvt::ShadingSystemImpl *ssi = (OSL::pvt::ShadingSystemImpl*)kg->osl.ss;
OSLGlobals::ThreadData *tdata = tls_get(OSLGlobals::ThreadData, kg->osl.thread_data);
ssi->release_context((OSL::pvt::ShadingContext*)sd->osl_ctx, tdata->thread_info);
}
/* BSDF Closure */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
int OSLShader::bsdf_sample(const ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3& eval, float3& omega_in, differential3& domega_in, float& pdf)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
{
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
OSL::BSDFClosure *sample_bsdf = (OSL::BSDFClosure*)sc->prim;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
int label = LABEL_NONE;
pdf = 0.0f;
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
/* sample BSDF closure */
ustring ulabel;
ulabel = sample_bsdf->sample(TO_VEC3(sd->Ng),
TO_VEC3(sd->I), TO_VEC3(sd->dI.dx), TO_VEC3(sd->dI.dy),
randu, randv,
TO_VEC3(omega_in), TO_VEC3(domega_in.dx), TO_VEC3(domega_in.dy),
pdf, TO_COLOR3(eval));
/* convert OSL label */
if(ulabel == OSL::Labels::REFLECT)
label = LABEL_REFLECT;
else if(ulabel == OSL::Labels::TRANSMIT)
label = LABEL_TRANSMIT;
else
return LABEL_NONE; /* sampling failed */
/* convert scattering to our bitflag label */
ustring uscattering = sample_bsdf->scattering();
if(uscattering == OSL::Labels::DIFFUSE)
label |= LABEL_DIFFUSE;
else if(uscattering == OSL::Labels::GLOSSY)
label |= LABEL_GLOSSY;
else if(uscattering == OSL::Labels::SINGULAR)
label |= LABEL_SINGULAR;
else
label |= LABEL_TRANSPARENT;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
return label;
}
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
float3 OSLShader::bsdf_eval(const ShaderData *sd, const ShaderClosure *sc, const float3& omega_in, float& pdf)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
{
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
OSL::BSDFClosure *bsdf = (OSL::BSDFClosure*)sc->prim;
OSL::Color3 bsdf_eval;
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
if(dot(sd->Ng, omega_in) >= 0.0f)
bsdf_eval = bsdf->eval_reflect(TO_VEC3(sd->I), TO_VEC3(omega_in), pdf);
else
bsdf_eval = bsdf->eval_transmit(TO_VEC3(sd->I), TO_VEC3(omega_in), pdf);
return TO_FLOAT3(bsdf_eval);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
}
/* Emissive Closure */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
float3 OSLShader::emissive_eval(const ShaderData *sd, const ShaderClosure *sc)
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
{
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
OSL::EmissiveClosure *emissive = (OSL::EmissiveClosure*)sc->prim;
OSL::Color3 emissive_eval = emissive->eval(TO_VEC3(sd->Ng), TO_VEC3(sd->I));
eval += TO_FLOAT3(emissive_eval);
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
return eval;
}
/* Volume Closure */
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
float3 OSLShader::volume_eval_phase(const ShaderData *sd, const ShaderClosure *sc, const float3 omega_in, const float3 omega_out)
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
{
Cycles: * Fix missing update when editing objects with emission materials. * Fix preview pass rendering set to 1 not showing full resolution. * Fix CUDA runtime compiling failing due to missing cache directory. * Use settings from first render layer for visibility and material override. And a bunch of incomplete and still disabled code mostly related to closure sampling.
2011-09-12 13:13:56 +00:00
OSL::VolumeClosure *volume = (OSL::VolumeClosure*)sc->prim;
OSL::Color3 volume_eval = volume->eval_phase(TO_VEC3(omega_in), TO_VEC3(omega_out));
return TO_FLOAT3(volume_eval)*sc->weight;
Cycles: * Add alpha pass output, to use set Transparent option in Film panel. * Add Holdout closure (OSL terminology), this is like the Sky option in the internal renderer, objects with this closure show the background / zero alpha. * Add option to use Gaussian instead of Box pixel filter in the UI. * Remove camera response curves for now, they don't really belong here in the pipeline, should be moved to compositor. * Output full float values for rendering now, previously was only byte precision. * Add a patch from Thomas to get a preview passes option, but still disabled because it isn't quite working right yet. * CUDA: don't compile shader graph evaluation inline. * Convert tabs to spaces in python files.
2011-08-28 13:55:59 +00:00
}
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
CCL_NAMESPACE_END
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