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author | Howard Trickey <howard.trickey@gmail.com> | 2021-10-30 22:37:05 +0300 |
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committer | Howard Trickey <howard.trickey@gmail.com> | 2021-10-30 22:37:05 +0300 |
commit | e9bbfd0c8c7a508d220bf355722ff03f91e93183 (patch) | |
tree | 1230f26bc82f24547aeccbaa7fcd6d3db2655fd3 /intern/cycles/kernel/svm/bump.h | |
parent | 1aa953bd1913c81b22c80a00edbf4ad88a32c52f (diff) | |
parent | 03a962d8cab44221650f59eb223cb0a767e05b2b (diff) |
Merge branch 'master' into soc-2020-io-performancesoc-2020-io-performance
Diffstat (limited to 'intern/cycles/kernel/svm/bump.h')
-rw-r--r-- | intern/cycles/kernel/svm/bump.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/bump.h b/intern/cycles/kernel/svm/bump.h new file mode 100644 index 00000000000..2fae06fa54b --- /dev/null +++ b/intern/cycles/kernel/svm/bump.h @@ -0,0 +1,61 @@ +/* + * Copyright 2011-2016 Blender Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +CCL_NAMESPACE_BEGIN + +/* Bump Eval Nodes */ + +ccl_device_noinline void svm_node_enter_bump_eval(KernelGlobals kg, + ccl_private ShaderData *sd, + ccl_private float *stack, + uint offset) +{ + /* save state */ + stack_store_float3(stack, offset + 0, sd->P); + stack_store_float3(stack, offset + 3, sd->dP.dx); + stack_store_float3(stack, offset + 6, sd->dP.dy); + + /* set state as if undisplaced */ + const AttributeDescriptor desc = find_attribute(kg, sd, ATTR_STD_POSITION_UNDISPLACED); + + if (desc.offset != ATTR_STD_NOT_FOUND) { + float3 P, dPdx, dPdy; + P = primitive_surface_attribute_float3(kg, sd, desc, &dPdx, &dPdy); + + object_position_transform(kg, sd, &P); + object_dir_transform(kg, sd, &dPdx); + object_dir_transform(kg, sd, &dPdy); + + sd->P = P; + sd->dP.dx = dPdx; + sd->dP.dy = dPdy; + } +} + +ccl_device_noinline void svm_node_leave_bump_eval(KernelGlobals kg, + ccl_private ShaderData *sd, + ccl_private float *stack, + uint offset) +{ + /* restore state */ + sd->P = stack_load_float3(stack, offset + 0); + sd->dP.dx = stack_load_float3(stack, offset + 3); + sd->dP.dy = stack_load_float3(stack, offset + 6); +} + +CCL_NAMESPACE_END |