9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#pragma once
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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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