5abf42012d
In detail:
- Direct accesses of state attributes are replaced with the INTEGRATOR_STATE and INTEGRATOR_STATE_WRITE macros.
- Unified the checks for the __PATH_GUIDING define to use # if defined (__PATH_GUIDING__).
- Even if __PATH_GUIDING__ is defined, we now check if the feature is enabled using if ((kernel_data.kernel_features & KERNEL_FEATURE_PATH_GUIDING)) {. This is important for later GPU ports.
- The kernel usage of the guiding field, surface, and volume sampling distributions is wrapped behind macros for each specific device (atm only CPU). This will make it easier for a GPU port later.
41 lines
704 B
C
41 lines
704 B
C
/* SPDX-FileCopyrightText: 2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#pragma once
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#if defined(WITH_PATH_GUIDING)
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# include <openpgl/cpp/OpenPGL.h> // IWYU pragma: export
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# include <openpgl/version.h> // IWYU pragma: export
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#endif
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#include "util/system.h" // IWYU pragma: keep
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CCL_NAMESPACE_BEGIN
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static int guiding_device_type()
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{
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#if defined(WITH_PATH_GUIDING)
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# if defined(__ARM_NEON)
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return 8;
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# else
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if (system_cpu_support_avx2()) {
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return 8;
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}
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if (system_cpu_support_sse42()) {
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return 4;
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}
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return 0;
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# endif
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#else
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return 0;
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#endif
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}
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static inline bool guiding_supported()
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{
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return guiding_device_type() != 0;
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}
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CCL_NAMESPACE_END
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