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authorGeorge Kyriazis <George.Kyriazis@amd.com>2015-05-09 17:34:30 +0300
committerSergey Sharybin <sergey.vfx@gmail.com>2015-05-09 17:52:40 +0300
commit7f4479da425b2d44a585f1b7b63f91d9dfecef02 (patch)
tree96ae5e7d4e091f89beedcd37609b3769783a00af /intern/cycles/kernel/svm/svm_closure.h
parentf680c1b54a28a02fb86271bca649da0660542e9a (diff)
Cycles: OpenCL kernel split
This commit contains all the work related on the AMD megakernel split work which was mainly done by Varun Sundar, George Kyriazis and Lenny Wang, plus some help from Sergey Sharybin, Martijn Berger, Thomas Dinges and likely someone else which we're forgetting to mention. Currently only AMD cards are enabled for the new split kernel, but it is possible to force split opencl kernel to be used by setting the following environment variable: CYCLES_OPENCL_SPLIT_KERNEL_TEST=1. Not all the features are supported yet, and that being said no motion blur, camera blur, SSS and volumetrics for now. Also transparent shadows are disabled on AMD device because of some compiler bug. This kernel is also only implements regular path tracing and supporting branched one will take a bit. Branched path tracing is exposed to the interface still, which is a bit misleading and will be hidden there soon. More feature will be enabled once they're ported to the split kernel and tested. Neither regular CPU nor CUDA has any difference, they're generating the same exact code, which means no regressions/improvements there. Based on the research paper: https://research.nvidia.com/sites/default/files/publications/laine2013hpg_paper.pdf Here's the documentation: https://docs.google.com/document/d/1LuXW-CV-sVJkQaEGZlMJ86jZ8FmoPfecaMdR-oiWbUY/edit Design discussion of the patch: https://developer.blender.org/T44197 Differential Revision: https://developer.blender.org/D1200
Diffstat (limited to 'intern/cycles/kernel/svm/svm_closure.h')
-rw-r--r--intern/cycles/kernel/svm/svm_closure.h140
1 files changed, 75 insertions, 65 deletions
diff --git a/intern/cycles/kernel/svm/svm_closure.h b/intern/cycles/kernel/svm/svm_closure.h
index 0d2d155f827..7cdcbc2d30c 100644
--- a/intern/cycles/kernel/svm/svm_closure.h
+++ b/intern/cycles/kernel/svm/svm_closure.h
@@ -25,12 +25,12 @@ ccl_device void svm_node_glass_setup(ShaderData *sd, ShaderClosure *sc, int type
sc->data0 = eta;
sc->data1 = 0.0f;
sc->data2 = 0.0f;
- sd->flag |= bsdf_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_refraction_setup(sc);
}
else {
sc->data0 = 0.0f;
sc->data1 = 0.0f;
- sd->flag |= bsdf_reflection_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_reflection_setup(sc);
}
}
else if(type == CLOSURE_BSDF_MICROFACET_BECKMANN_GLASS_ID) {
@@ -39,9 +39,9 @@ ccl_device void svm_node_glass_setup(ShaderData *sd, ShaderClosure *sc, int type
sc->data2 = eta;
if(refract)
- sd->flag |= bsdf_microfacet_beckmann_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_beckmann_refraction_setup(sc);
else
- sd->flag |= bsdf_microfacet_beckmann_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_beckmann_setup(sc);
}
else {
sc->data0 = roughness;
@@ -49,23 +49,23 @@ ccl_device void svm_node_glass_setup(ShaderData *sd, ShaderClosure *sc, int type
sc->data2 = eta;
if(refract)
- sd->flag |= bsdf_microfacet_ggx_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_ggx_refraction_setup(sc);
else
- sd->flag |= bsdf_microfacet_ggx_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_ggx_setup(sc);
}
}
ccl_device_inline ShaderClosure *svm_node_closure_get_non_bsdf(ShaderData *sd, ClosureType type, float mix_weight)
{
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
- if(sd->num_closure < MAX_CLOSURE) {
+ if(ccl_fetch(sd, num_closure) < MAX_CLOSURE) {
sc->weight *= mix_weight;
sc->type = type;
#ifdef __OSL__
sc->prim = NULL;
#endif
- sd->num_closure++;
+ ccl_fetch(sd, num_closure)++;
return sc;
}
@@ -74,14 +74,15 @@ ccl_device_inline ShaderClosure *svm_node_closure_get_non_bsdf(ShaderData *sd, C
ccl_device_inline ShaderClosure *svm_node_closure_get_bsdf(ShaderData *sd, float mix_weight)
{
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
+
float3 weight = sc->weight * mix_weight;
float sample_weight = fabsf(average(weight));
- if(sample_weight > CLOSURE_WEIGHT_CUTOFF && sd->num_closure < MAX_CLOSURE) {
+ if(sample_weight > CLOSURE_WEIGHT_CUTOFF && ccl_fetch(sd, num_closure) < MAX_CLOSURE) {
sc->weight = weight;
sc->sample_weight = sample_weight;
- sd->num_closure++;
+ ccl_fetch(sd, num_closure)++;
#ifdef __OSL__
sc->prim = NULL;
#endif
@@ -93,14 +94,15 @@ ccl_device_inline ShaderClosure *svm_node_closure_get_bsdf(ShaderData *sd, float
ccl_device_inline ShaderClosure *svm_node_closure_get_absorption(ShaderData *sd, float mix_weight)
{
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
+
float3 weight = (make_float3(1.0f, 1.0f, 1.0f) - sc->weight) * mix_weight;
float sample_weight = fabsf(average(weight));
- if(sample_weight > CLOSURE_WEIGHT_CUTOFF && sd->num_closure < MAX_CLOSURE) {
+ if(sample_weight > CLOSURE_WEIGHT_CUTOFF && ccl_fetch(sd, num_closure) < MAX_CLOSURE) {
sc->weight = weight;
sc->sample_weight = sample_weight;
- sd->num_closure++;
+ ccl_fetch(sd, num_closure)++;
#ifdef __OSL__
sc->prim = NULL;
#endif
@@ -124,7 +126,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
if(mix_weight == 0.0f)
return;
- float3 N = stack_valid(data_node.x)? stack_load_float3(stack, data_node.x): sd->N;
+ float3 N = stack_valid(data_node.x)? stack_load_float3(stack, data_node.x): ccl_fetch(sd, N);
float param1 = (stack_valid(param1_offset))? stack_load_float(stack, param1_offset): __uint_as_float(node.z);
float param2 = (stack_valid(param2_offset))? stack_load_float(stack, param2_offset): __uint_as_float(node.w);
@@ -142,13 +144,13 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data0 = 0.0f;
sc->data1 = 0.0f;
sc->data2 = 0.0f;
- sd->flag |= bsdf_diffuse_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_diffuse_setup(sc);
}
else {
sc->data0 = roughness;
sc->data1 = 0.0f;
sc->data2 = 0.0f;
- sd->flag |= bsdf_oren_nayar_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_oren_nayar_setup(sc);
}
}
break;
@@ -161,7 +163,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data1 = 0.0f;
sc->data2 = 0.0f;
sc->N = N;
- sd->flag |= bsdf_translucent_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_translucent_setup(sc);
}
break;
}
@@ -173,7 +175,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data1 = 0.0f;
sc->data2 = 0.0f;
sc->N = N;
- sd->flag |= bsdf_transparent_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_transparent_setup(sc);
}
break;
}
@@ -195,13 +197,13 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
/* setup bsdf */
if(type == CLOSURE_BSDF_REFLECTION_ID)
- sd->flag |= bsdf_reflection_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_reflection_setup(sc);
else if(type == CLOSURE_BSDF_MICROFACET_BECKMANN_ID)
- sd->flag |= bsdf_microfacet_beckmann_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_beckmann_setup(sc);
else if(type == CLOSURE_BSDF_MICROFACET_GGX_ID)
- sd->flag |= bsdf_microfacet_ggx_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_ggx_setup(sc);
else
- sd->flag |= bsdf_ashikhmin_shirley_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_ashikhmin_shirley_setup(sc);
}
break;
@@ -219,7 +221,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->N = N;
float eta = fmaxf(param2, 1e-5f);
- eta = (sd->flag & SD_BACKFACING)? 1.0f/eta: eta;
+ eta = (ccl_fetch(sd, flag) & SD_BACKFACING)? 1.0f/eta: eta;
/* setup bsdf */
if(type == CLOSURE_BSDF_REFRACTION_ID) {
@@ -227,7 +229,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data1 = 0.0f;
sc->data2 = 0.0f;
- sd->flag |= bsdf_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_refraction_setup(sc);
}
else {
sc->data0 = param1;
@@ -235,9 +237,9 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data2 = eta;
if(type == CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID)
- sd->flag |= bsdf_microfacet_beckmann_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_beckmann_refraction_setup(sc);
else
- sd->flag |= bsdf_microfacet_ggx_refraction_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_ggx_refraction_setup(sc);
}
}
@@ -254,15 +256,15 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
#endif
/* index of refraction */
float eta = fmaxf(param2, 1e-5f);
- eta = (sd->flag & SD_BACKFACING)? 1.0f/eta: eta;
+ eta = (ccl_fetch(sd, flag) & SD_BACKFACING)? 1.0f/eta: eta;
/* fresnel */
- float cosNO = dot(N, sd->I);
+ float cosNO = dot(N, ccl_fetch(sd, I));
float fresnel = fresnel_dielectric_cos(cosNO, eta);
float roughness = param1;
/* reflection */
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
float3 weight = sc->weight;
float sample_weight = sc->sample_weight;
@@ -283,7 +285,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
#endif
/* refraction */
- sc = &sd->closure[sd->num_closure];
+ sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
sc->weight = weight;
sc->sample_weight = sample_weight;
@@ -332,11 +334,11 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data2 = 0.0f;
if(type == CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID)
- sd->flag |= bsdf_microfacet_beckmann_aniso_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_beckmann_aniso_setup(sc);
else if(type == CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID)
- sd->flag |= bsdf_microfacet_ggx_aniso_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_microfacet_ggx_aniso_setup(sc);
else
- sd->flag |= bsdf_ashikhmin_shirley_aniso_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_ashikhmin_shirley_aniso_setup(sc);
}
break;
}
@@ -350,7 +352,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data0 = saturate(param1);
sc->data1 = 0.0f;
sc->data2 = 0.0f;
- sd->flag |= bsdf_ashikhmin_velvet_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_ashikhmin_velvet_setup(sc);
}
break;
}
@@ -366,9 +368,9 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data2 = 0.0f;
if(type == CLOSURE_BSDF_DIFFUSE_TOON_ID)
- sd->flag |= bsdf_diffuse_toon_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_diffuse_toon_setup(sc);
else
- sd->flag |= bsdf_glossy_toon_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_glossy_toon_setup(sc);
}
break;
}
@@ -376,7 +378,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
case CLOSURE_BSDF_HAIR_REFLECTION_ID:
case CLOSURE_BSDF_HAIR_TRANSMISSION_ID: {
- if(sd->flag & SD_BACKFACING && sd->type & PRIMITIVE_ALL_CURVE) {
+ if(ccl_fetch(sd, flag) & SD_BACKFACING && ccl_fetch(sd, type) & PRIMITIVE_ALL_CURVE) {
ShaderClosure *sc = svm_node_closure_get_bsdf(sd, mix_weight);
if(sc) {
@@ -389,11 +391,11 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->N = N;
sc->data0 = 0.0f;
sc->data1 = 0.0f;
- sd->flag |= bsdf_transparent_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_transparent_setup(sc);
}
}
else {
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
sc = svm_node_closure_get_bsdf(sd, mix_weight);
if(sc) {
@@ -402,18 +404,18 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->data1 = param2;
sc->data2 = -stack_load_float(stack, data_node.z);
- if(!(sd->type & PRIMITIVE_ALL_CURVE)) {
- sc->T = normalize(sd->dPdv);
+ if(!(ccl_fetch(sd, type) & PRIMITIVE_ALL_CURVE)) {
+ sc->T = normalize(ccl_fetch(sd, dPdv));
sc->data2 = 0.0f;
}
else
- sc->T = normalize(sd->dPdu);
+ sc->T = normalize(ccl_fetch(sd, dPdu));
if(type == CLOSURE_BSDF_HAIR_REFLECTION_ID) {
- sd->flag |= bsdf_hair_reflection_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_hair_reflection_setup(sc);
}
else {
- sd->flag |= bsdf_hair_transmission_setup(sc);
+ ccl_fetch(sd, flag) |= bsdf_hair_transmission_setup(sc);
}
}
}
@@ -423,9 +425,14 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
#endif
#ifdef __SUBSURFACE__
+#ifndef __SPLIT_KERNEL__
+# define sc_next(sc) sc++
+# else
+# define sc_next(sc) sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure))
+# endif
case CLOSURE_BSSRDF_CUBIC_ID:
case CLOSURE_BSSRDF_GAUSSIAN_ID: {
- ShaderClosure *sc = &sd->closure[sd->num_closure];
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
float3 weight = sc->weight * mix_weight;
float sample_weight = fabsf(average(weight));
@@ -435,7 +442,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
if(path_flag & PATH_RAY_DIFFUSE_ANCESTOR)
param1 = 0.0f;
- if(sample_weight > CLOSURE_WEIGHT_CUTOFF && sd->num_closure+2 < MAX_CLOSURE) {
+ if(sample_weight > CLOSURE_WEIGHT_CUTOFF && ccl_fetch(sd, num_closure)+2 < MAX_CLOSURE) {
/* radius * scale */
float3 radius = stack_load_float3(stack, data_node.z)*param1;
/* sharpness */
@@ -455,10 +462,10 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->prim = NULL;
#endif
sc->N = N;
- sd->flag |= bssrdf_setup(sc, (ClosureType)type);
+ ccl_fetch(sd, flag) |= bssrdf_setup(sc, (ClosureType)type);
- sd->num_closure++;
- sc++;
+ ccl_fetch(sd, num_closure)++;
+ sc_next(sc);
}
if(fabsf(weight.y) > 0.0f) {
@@ -472,10 +479,10 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->prim = NULL;
#endif
sc->N = N;
- sd->flag |= bssrdf_setup(sc, (ClosureType)type);
+ ccl_fetch(sd, flag) |= bssrdf_setup(sc, (ClosureType)type);
- sd->num_closure++;
- sc++;
+ ccl_fetch(sd, num_closure)++;
+ sc_next(sc);
}
if(fabsf(weight.z) > 0.0f) {
@@ -489,15 +496,16 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
sc->prim = NULL;
#endif
sc->N = N;
- sd->flag |= bssrdf_setup(sc, (ClosureType)type);
+ ccl_fetch(sd, flag) |= bssrdf_setup(sc, (ClosureType)type);
- sd->num_closure++;
- sc++;
+ ccl_fetch(sd, num_closure)++;
+ sc_next(sc);
}
}
break;
}
+# undef sc_next
#endif
default:
break;
@@ -525,7 +533,7 @@ ccl_device void svm_node_closure_volume(KernelGlobals *kg, ShaderData *sd, float
ShaderClosure *sc = svm_node_closure_get_absorption(sd, mix_weight * density);
if(sc) {
- sd->flag |= volume_absorption_setup(sc);
+ ccl_fetch(sd, flag) |= volume_absorption_setup(sc);
}
break;
}
@@ -535,7 +543,7 @@ ccl_device void svm_node_closure_volume(KernelGlobals *kg, ShaderData *sd, float
if(sc) {
sc->data0 = param2; /* g */
sc->data1 = 0.0f;
- sd->flag |= volume_henyey_greenstein_setup(sc);
+ ccl_fetch(sd, flag) |= volume_henyey_greenstein_setup(sc);
}
break;
}
@@ -560,7 +568,7 @@ ccl_device void svm_node_closure_emission(ShaderData *sd, float *stack, uint4 no
else
svm_node_closure_get_non_bsdf(sd, CLOSURE_EMISSION_ID, 1.0f);
- sd->flag |= SD_EMISSION;
+ ccl_fetch(sd, flag) |= SD_EMISSION;
}
ccl_device void svm_node_closure_background(ShaderData *sd, float *stack, uint4 node)
@@ -594,7 +602,7 @@ ccl_device void svm_node_closure_holdout(ShaderData *sd, float *stack, uint4 nod
else
svm_node_closure_get_non_bsdf(sd, CLOSURE_HOLDOUT_ID, 1.0f);
- sd->flag |= SD_HOLDOUT;
+ ccl_fetch(sd, flag) |= SD_HOLDOUT;
}
ccl_device void svm_node_closure_ambient_occlusion(ShaderData *sd, float *stack, uint4 node)
@@ -612,15 +620,17 @@ ccl_device void svm_node_closure_ambient_occlusion(ShaderData *sd, float *stack,
else
svm_node_closure_get_non_bsdf(sd, CLOSURE_AMBIENT_OCCLUSION_ID, 1.0f);
- sd->flag |= SD_AO;
+ ccl_fetch(sd, flag) |= SD_AO;
}
/* Closure Nodes */
ccl_device_inline void svm_node_closure_store_weight(ShaderData *sd, float3 weight)
{
- if(sd->num_closure < MAX_CLOSURE)
- sd->closure[sd->num_closure].weight = weight;
+ if(ccl_fetch(sd, num_closure) < MAX_CLOSURE) {
+ ShaderClosure *sc = ccl_fetch_array(sd, closure, ccl_fetch(sd, num_closure));
+ sc->weight = weight;
+ }
}
ccl_device void svm_node_closure_set_weight(ShaderData *sd, uint r, uint g, uint b)
@@ -670,7 +680,7 @@ ccl_device void svm_node_mix_closure(ShaderData *sd, float *stack, uint4 node)
ccl_device void svm_node_set_normal(KernelGlobals *kg, ShaderData *sd, float *stack, uint in_direction, uint out_normal)
{
float3 normal = stack_load_float3(stack, in_direction);
- sd->N = normal;
+ ccl_fetch(sd, N) = normal;
stack_store_float3(stack, out_normal, normal);
}