forked from bartvdbraak/blender
43b374e8c5
This commit contains the first part of the new Cycles denoising option, which filters the resulting image using information gathered during rendering to get rid of noise while preserving visual features as well as possible. To use the option, enable it in the render layer options. The default settings fit a wide range of scenes, but the user can tweak individual settings to control the tradeoff between a noise-free image, image details, and calculation time. Note that the denoiser may still change in the future and that some features are not implemented yet. The most important missing feature is animation denoising, which uses information from multiple frames at once to produce a flicker-free and smoother result. These features will be added in the future. Finally, thanks to all the people who supported this project: - Google (through the GSoC) and Theory Studios for sponsoring the development - The authors of the papers I used for implementing the denoiser (more details on them will be included in the technical docs) - The other Cycles devs for feedback on the code, especially Sergey for mentoring the GSoC project and Brecht for the code review! - And of course the users who helped with testing, reported bugs and things that could and/or should work better!
196 lines
5.7 KiB
C
196 lines
5.7 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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CCL_NAMESPACE_BEGIN
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/* Geometry Node */
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ccl_device_inline void svm_node_geometry(KernelGlobals *kg,
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ShaderData *sd,
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float *stack,
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uint type,
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uint out_offset)
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{
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float3 data;
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switch(type) {
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case NODE_GEOM_P: data = sd->P; break;
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case NODE_GEOM_N: data = sd->N; break;
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#ifdef __DPDU__
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case NODE_GEOM_T: data = primitive_tangent(kg, sd); break;
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#endif
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case NODE_GEOM_I: data = sd->I; break;
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case NODE_GEOM_Ng: data = sd->Ng; break;
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#ifdef __UV__
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case NODE_GEOM_uv: data = make_float3(sd->u, sd->v, 0.0f); break;
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#endif
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default: data = make_float3(0.0f, 0.0f, 0.0f);
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}
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stack_store_float3(stack, out_offset, data);
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}
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ccl_device void svm_node_geometry_bump_dx(KernelGlobals *kg, ShaderData *sd, float *stack, uint type, uint out_offset)
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{
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#ifdef __RAY_DIFFERENTIALS__
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float3 data;
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switch(type) {
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case NODE_GEOM_P: data = sd->P + sd->dP.dx; break;
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case NODE_GEOM_uv: data = make_float3(sd->u + sd->du.dx, sd->v + sd->dv.dx, 0.0f); break;
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default: svm_node_geometry(kg, sd, stack, type, out_offset); return;
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}
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stack_store_float3(stack, out_offset, data);
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#else
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svm_node_geometry(kg, sd, stack, type, out_offset);
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#endif
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}
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ccl_device void svm_node_geometry_bump_dy(KernelGlobals *kg, ShaderData *sd, float *stack, uint type, uint out_offset)
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{
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#ifdef __RAY_DIFFERENTIALS__
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float3 data;
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switch(type) {
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case NODE_GEOM_P: data = sd->P + sd->dP.dy; break;
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case NODE_GEOM_uv: data = make_float3(sd->u + sd->du.dy, sd->v + sd->dv.dy, 0.0f); break;
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default: svm_node_geometry(kg, sd, stack, type, out_offset); return;
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}
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stack_store_float3(stack, out_offset, data);
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#else
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svm_node_geometry(kg, sd, stack, type, out_offset);
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#endif
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}
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/* Object Info */
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ccl_device void svm_node_object_info(KernelGlobals *kg, ShaderData *sd, float *stack, uint type, uint out_offset)
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{
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float data;
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switch(type) {
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case NODE_INFO_OB_LOCATION: {
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stack_store_float3(stack, out_offset, object_location(kg, sd));
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return;
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}
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case NODE_INFO_OB_INDEX: data = object_pass_id(kg, sd->object); break;
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case NODE_INFO_MAT_INDEX: data = shader_pass_id(kg, sd); break;
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case NODE_INFO_OB_RANDOM: data = object_random_number(kg, sd->object); break;
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default: data = 0.0f; break;
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}
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stack_store_float(stack, out_offset, data);
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}
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/* Particle Info */
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ccl_device void svm_node_particle_info(KernelGlobals *kg,
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ShaderData *sd,
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float *stack,
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uint type,
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uint out_offset)
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{
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switch(type) {
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case NODE_INFO_PAR_INDEX: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float(stack, out_offset, particle_index(kg, particle_id));
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break;
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}
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case NODE_INFO_PAR_AGE: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float(stack, out_offset, particle_age(kg, particle_id));
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break;
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}
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case NODE_INFO_PAR_LIFETIME: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float(stack, out_offset, particle_lifetime(kg, particle_id));
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break;
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}
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case NODE_INFO_PAR_LOCATION: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float3(stack, out_offset, particle_location(kg, particle_id));
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break;
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}
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#if 0 /* XXX float4 currently not supported in SVM stack */
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case NODE_INFO_PAR_ROTATION: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float4(stack, out_offset, particle_rotation(kg, particle_id));
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break;
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}
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#endif
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case NODE_INFO_PAR_SIZE: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float(stack, out_offset, particle_size(kg, particle_id));
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break;
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}
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case NODE_INFO_PAR_VELOCITY: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float3(stack, out_offset, particle_velocity(kg, particle_id));
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break;
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}
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case NODE_INFO_PAR_ANGULAR_VELOCITY: {
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int particle_id = object_particle_id(kg, sd->object);
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stack_store_float3(stack, out_offset, particle_angular_velocity(kg, particle_id));
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break;
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}
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}
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}
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#ifdef __HAIR__
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/* Hair Info */
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ccl_device void svm_node_hair_info(KernelGlobals *kg,
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ShaderData *sd,
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float *stack,
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uint type,
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uint out_offset)
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{
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float data;
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float3 data3;
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switch(type) {
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case NODE_INFO_CURVE_IS_STRAND: {
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data = (sd->type & PRIMITIVE_ALL_CURVE) != 0;
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stack_store_float(stack, out_offset, data);
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break;
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}
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case NODE_INFO_CURVE_INTERCEPT:
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break; /* handled as attribute */
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case NODE_INFO_CURVE_THICKNESS: {
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data = curve_thickness(kg, sd);
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stack_store_float(stack, out_offset, data);
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break;
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}
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/*case NODE_INFO_CURVE_FADE: {
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data = sd->curve_transparency;
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stack_store_float(stack, out_offset, data);
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break;
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}*/
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case NODE_INFO_CURVE_TANGENT_NORMAL: {
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data3 = curve_tangent_normal(kg, sd);
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stack_store_float3(stack, out_offset, data3);
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break;
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}
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}
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}
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#endif
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CCL_NAMESPACE_END
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