1df3b51988
* Rename struct KernelGlobals to struct KernelGlobalsCPU * Add KernelGlobals, IntegratorState and ConstIntegratorState typedefs that every device can define in its own way. * Remove INTEGRATOR_STATE_ARGS and INTEGRATOR_STATE_PASS macros and replace with these new typedefs. * Add explicit state argument to INTEGRATOR_STATE and similar macros In preparation for decoupling main and shadow paths. Differential Revision: https://developer.blender.org/D12888
60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* Copyright 2011-2016 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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/* Bump Eval Nodes */
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ccl_device_noinline void svm_node_enter_bump_eval(KernelGlobals kg,
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ccl_private ShaderData *sd,
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ccl_private float *stack,
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uint offset)
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{
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/* save state */
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stack_store_float3(stack, offset + 0, sd->P);
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stack_store_float3(stack, offset + 3, sd->dP.dx);
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stack_store_float3(stack, offset + 6, sd->dP.dy);
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/* set state as if undisplaced */
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const AttributeDescriptor desc = find_attribute(kg, sd, ATTR_STD_POSITION_UNDISPLACED);
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if (desc.offset != ATTR_STD_NOT_FOUND) {
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float3 P, dPdx, dPdy;
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P = primitive_surface_attribute_float3(kg, sd, desc, &dPdx, &dPdy);
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object_position_transform(kg, sd, &P);
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object_dir_transform(kg, sd, &dPdx);
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object_dir_transform(kg, sd, &dPdy);
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sd->P = P;
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sd->dP.dx = dPdx;
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sd->dP.dy = dPdy;
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}
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}
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ccl_device_noinline void svm_node_leave_bump_eval(KernelGlobals kg,
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ccl_private ShaderData *sd,
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ccl_private float *stack,
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uint offset)
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{
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/* restore state */
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sd->P = stack_load_float3(stack, offset + 0);
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sd->dP.dx = stack_load_float3(stack, offset + 3);
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sd->dP.dy = stack_load_float3(stack, offset + 6);
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}
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CCL_NAMESPACE_END
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