From 9a76354585e2cd2011267e79bd99ca59a06588f8 Mon Sep 17 00:00:00 2001 From: Dalai Felinto Date: Fri, 15 Jan 2016 13:00:56 -0200 Subject: Cycles-Bake: Custom Baking passes The combined pass is built with the contributions the user finds fit. It is useful for lightmap baking, as well as non-view dependent effects baking. The manual will be updated once we get closer to the 2.77 release. Meanwhile the new page can be found here: http://dalaifelinto.com/blender-manual/render/cycles/baking.html Reviewers: sergey, brecht Differential Revision: https://developer.blender.org/D1674 --- intern/cycles/kernel/kernel_bake.h | 202 +++++++++++++++++++++---------------- 1 file changed, 113 insertions(+), 89 deletions(-) (limited to 'intern/cycles/kernel/kernel_bake.h') diff --git a/intern/cycles/kernel/kernel_bake.h b/intern/cycles/kernel/kernel_bake.h index 2a2220ceb99..31e58de0b48 100644 --- a/intern/cycles/kernel/kernel_bake.h +++ b/intern/cycles/kernel/kernel_bake.h @@ -19,7 +19,7 @@ CCL_NAMESPACE_BEGIN #undef USE_BAKE_JITTER ccl_device void compute_light_pass(KernelGlobals *kg, ShaderData *sd, PathRadiance *L, RNG rng, - const bool is_combined, const bool is_ao, const bool is_sss, int sample) + const bool is_ao, const bool is_sss, int sample) { /* initialize master radiance accumulator */ kernel_assert(kernel_data.film.use_light_pass); @@ -56,13 +56,13 @@ ccl_device void compute_light_pass(KernelGlobals *kg, ShaderData *sd, PathRadian #endif /* sample ambient occlusion */ - if(is_combined || is_ao) { + if(is_ao) { kernel_path_ao(kg, sd, &L_sample, &state, &rng, throughput); } #ifdef __SUBSURFACE__ /* sample subsurface scattering */ - if((is_combined || is_sss_sample) && (sd->flag & SD_BSSRDF)) { + if(is_sss_sample && (sd->flag & SD_BSSRDF)) { /* when mixing BSSRDF and BSDF closures we should skip BSDF lighting if scattering was successful */ SubsurfaceIndirectRays ss_indirect; kernel_path_subsurface_init_indirect(&ss_indirect); @@ -124,13 +124,13 @@ ccl_device void compute_light_pass(KernelGlobals *kg, ShaderData *sd, PathRadian /* branched path tracer */ /* sample ambient occlusion */ - if(is_combined || is_ao) { + if(is_ao) { kernel_branched_path_ao(kg, sd, &L_sample, &state, &rng, throughput); } #ifdef __SUBSURFACE__ /* sample subsurface scattering */ - if((is_combined || is_sss_sample) && (sd->flag & SD_BSSRDF)) { + if(is_sss_sample && (sd->flag & SD_BSSRDF)) { /* when mixing BSSRDF and BSDF closures we should skip BSDF lighting if scattering was successful */ kernel_branched_path_subsurface_scatter(kg, sd, &L_sample, &state, &rng, &ray, throughput); } @@ -175,21 +175,27 @@ ccl_device bool is_aa_pass(ShaderEvalType type) } } -ccl_device bool is_light_pass(ShaderEvalType type) +/* Keep it synced with BakeManager::is_light_pass. */ +ccl_device bool is_light_pass(ShaderEvalType type, const int pass_filter) { switch(type) { case SHADER_EVAL_AO: - case SHADER_EVAL_COMBINED: case SHADER_EVAL_SHADOW: - case SHADER_EVAL_DIFFUSE_DIRECT: - case SHADER_EVAL_GLOSSY_DIRECT: - case SHADER_EVAL_TRANSMISSION_DIRECT: - case SHADER_EVAL_SUBSURFACE_DIRECT: - case SHADER_EVAL_DIFFUSE_INDIRECT: - case SHADER_EVAL_GLOSSY_INDIRECT: - case SHADER_EVAL_TRANSMISSION_INDIRECT: - case SHADER_EVAL_SUBSURFACE_INDIRECT: return true; + case SHADER_EVAL_DIFFUSE: + case SHADER_EVAL_GLOSSY: + case SHADER_EVAL_TRANSMISSION: + return ((pass_filter & BAKE_FILTER_DIRECT) != 0) || + ((pass_filter & BAKE_FILTER_INDIRECT) != 0); + case SHADER_EVAL_COMBINED: + return ((pass_filter & BAKE_FILTER_AO) != 0) || + ((pass_filter & BAKE_FILTER_EMISSION) != 0) || + ((((pass_filter & BAKE_FILTER_DIRECT) != 0) || + ((pass_filter & BAKE_FILTER_INDIRECT) != 0)) && + (((pass_filter & BAKE_FILTER_DIFFUSE) != 0) || + ((pass_filter & BAKE_FILTER_GLOSSY) != 0) || + ((pass_filter & BAKE_FILTER_TRANSMISSION) != 0) || + ((pass_filter & BAKE_FILTER_SUBSURFACE) != 0))); default: return false; } @@ -208,15 +214,52 @@ ccl_device_inline float bake_clamp_mirror_repeat(float u) return (((int)fu) & 1)? 1.0f - u: u; } +ccl_device float3 kernel_bake_evaluate_direct_indirect(KernelGlobals *kg, ShaderData *sd, PathState *state, + float3 (*shader_bsdf)(KernelGlobals *kg, ShaderData *sd), + float3 direct, float3 indirect, const int pass_filter) +{ + float3 color; + const bool is_color = (pass_filter & BAKE_FILTER_COLOR) != 0; + const bool is_direct = (pass_filter & BAKE_FILTER_DIRECT) != 0; + const bool is_indirect = (pass_filter & BAKE_FILTER_INDIRECT) != 0; + float3 out = make_float3(0.0f, 0.0f, 0.0f); + + if(is_color) { + if(is_direct || is_indirect) { + /* Leave direct and diffuse channel colored. */ + color = make_float3(1.0f, 1.0f, 1.0f); + } + else { + /* surface color of the pass only */ + shader_eval_surface(kg, sd, state, 0.0f, 0, SHADER_CONTEXT_MAIN); + return shader_bsdf(kg, sd); + } + } + else { + shader_eval_surface(kg, sd, state, 0.0f, 0, SHADER_CONTEXT_MAIN); + color = shader_bsdf(kg, sd); + } + + if(is_direct) { + out += safe_divide_color(direct, color); + } + + if(is_indirect) { + out += safe_divide_color(indirect, color); + } + + return out; +} + ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input, ccl_global float4 *output, - ShaderEvalType type, int i, int offset, int sample) + ShaderEvalType type, int pass_filter, int i, int offset, int sample) { ShaderData sd; PathState state = {0}; uint4 in = input[i * 2]; uint4 diff = input[i * 2 + 1]; - float3 out; + float3 out = make_float3(0.0f, 0.0f, 0.0f); int object = in.x; int prim = in.y; @@ -279,13 +322,23 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input, sd.dv.dy = dvdy; /* light passes */ - if(is_light_pass(type)) { - compute_light_pass(kg, &sd, &L, rng, - (type == SHADER_EVAL_COMBINED), - (type == SHADER_EVAL_AO), - (type == SHADER_EVAL_SUBSURFACE_DIRECT || - type == SHADER_EVAL_SUBSURFACE_INDIRECT), - sample); + if(is_light_pass(type, pass_filter)) { + bool is_ao, is_sss; + + if (type == SHADER_EVAL_COMBINED) { + is_ao = (pass_filter & BAKE_FILTER_AO) != 0; + is_sss = ((pass_filter & BAKE_FILTER_SUBSURFACE) != 0) && + (((pass_filter & BAKE_FILTER_DIRECT) != 0) || + ((pass_filter & BAKE_FILTER_INDIRECT) != 0)); + } + else { + is_ao = (type == SHADER_EVAL_AO); + is_sss = (type == SHADER_EVAL_SUBSURFACE) && + (((pass_filter & BAKE_FILTER_DIRECT) != 0) || + ((pass_filter & BAKE_FILTER_INDIRECT) != 0)); + } + + compute_light_pass(kg, &sd, &L, rng, is_ao, is_sss, sample); } switch(type) { @@ -305,32 +358,6 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input, out = primitive_uv(kg, &sd); break; } - case SHADER_EVAL_DIFFUSE_COLOR: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = shader_bsdf_diffuse(kg, &sd); - break; - } - case SHADER_EVAL_GLOSSY_COLOR: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = shader_bsdf_glossy(kg, &sd); - break; - } - case SHADER_EVAL_TRANSMISSION_COLOR: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = shader_bsdf_transmission(kg, &sd); - break; - } - case SHADER_EVAL_SUBSURFACE_COLOR: - { -#ifdef __SUBSURFACE__ - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = shader_bsdf_subsurface(kg, &sd); -#endif - break; - } case SHADER_EVAL_EMISSION: { shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_EMISSION); @@ -347,7 +374,34 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input, } case SHADER_EVAL_COMBINED: { - out = path_radiance_clamp_and_sum(kg, &L); + if((pass_filter & BAKE_FILTER_COMBINED) == BAKE_FILTER_COMBINED) { + out = path_radiance_clamp_and_sum(kg, &L); + break; + } + + if((pass_filter & BAKE_FILTER_DIFFUSE_DIRECT) == BAKE_FILTER_DIFFUSE_DIRECT) + out += L.direct_diffuse; + if((pass_filter & BAKE_FILTER_DIFFUSE_INDIRECT) == BAKE_FILTER_DIFFUSE_INDIRECT) + out += L.indirect_diffuse; + + if((pass_filter & BAKE_FILTER_GLOSSY_DIRECT) == BAKE_FILTER_GLOSSY_DIRECT) + out += L.direct_glossy; + if((pass_filter & BAKE_FILTER_GLOSSY_INDIRECT) == BAKE_FILTER_GLOSSY_INDIRECT) + out += L.indirect_glossy; + + if((pass_filter & BAKE_FILTER_TRANSMISSION_DIRECT) == BAKE_FILTER_TRANSMISSION_DIRECT) + out += L.direct_transmission; + if((pass_filter & BAKE_FILTER_TRANSMISSION_INDIRECT) == BAKE_FILTER_TRANSMISSION_INDIRECT) + out += L.indirect_transmission; + + if((pass_filter & BAKE_FILTER_SUBSURFACE_DIRECT) == BAKE_FILTER_SUBSURFACE_DIRECT) + out += L.direct_subsurface; + if((pass_filter & BAKE_FILTER_SUBSURFACE_INDIRECT) == BAKE_FILTER_SUBSURFACE_INDIRECT) + out += L.indirect_subsurface; + + if((pass_filter & BAKE_FILTER_EMISSION) != 0) + out += L.emission; + break; } case SHADER_EVAL_SHADOW: @@ -355,55 +409,25 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input, out = make_float3(L.shadow.x, L.shadow.y, L.shadow.z); break; } - case SHADER_EVAL_DIFFUSE_DIRECT: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.direct_diffuse, shader_bsdf_diffuse(kg, &sd)); - break; - } - case SHADER_EVAL_GLOSSY_DIRECT: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.direct_glossy, shader_bsdf_glossy(kg, &sd)); - break; - } - case SHADER_EVAL_TRANSMISSION_DIRECT: - { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.direct_transmission, shader_bsdf_transmission(kg, &sd)); - break; - } - case SHADER_EVAL_SUBSURFACE_DIRECT: - { -#ifdef __SUBSURFACE__ - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.direct_subsurface, shader_bsdf_subsurface(kg, &sd)); -#endif - break; - } - case SHADER_EVAL_DIFFUSE_INDIRECT: + case SHADER_EVAL_DIFFUSE: { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.indirect_diffuse, shader_bsdf_diffuse(kg, &sd)); + out = kernel_bake_evaluate_direct_indirect(kg, &sd, &state, &shader_bsdf_diffuse, L.direct_diffuse, L.indirect_diffuse, pass_filter); break; } - case SHADER_EVAL_GLOSSY_INDIRECT: + case SHADER_EVAL_GLOSSY: { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.indirect_glossy, shader_bsdf_glossy(kg, &sd)); + out = kernel_bake_evaluate_direct_indirect(kg, &sd, &state, &shader_bsdf_glossy, L.direct_glossy, L.indirect_glossy, pass_filter); break; } - case SHADER_EVAL_TRANSMISSION_INDIRECT: + case SHADER_EVAL_TRANSMISSION: { - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.indirect_transmission, shader_bsdf_transmission(kg, &sd)); + out = kernel_bake_evaluate_direct_indirect(kg, &sd, &state, &shader_bsdf_transmission, L.direct_transmission, L.indirect_transmission, pass_filter); break; } - case SHADER_EVAL_SUBSURFACE_INDIRECT: + case SHADER_EVAL_SUBSURFACE: { #ifdef __SUBSURFACE__ - shader_eval_surface(kg, &sd, &state, 0.f, 0, SHADER_CONTEXT_MAIN); - out = safe_divide_color(L.indirect_subsurface, shader_bsdf_subsurface(kg, &sd)); + out = kernel_bake_evaluate_direct_indirect(kg, &sd, &state, &shader_bsdf_subsurface, L.direct_subsurface, L.indirect_subsurface, pass_filter); #endif break; } -- cgit v1.2.3