Patrick Mours
3df90de6c2
NanoVDB is a platform-independent sparse volume data structure that makes it possible to use OpenVDB volumes on the GPU. This patch uses it for volume rendering in Cycles, replacing the previous usage of dense 3D textures. Since it has a big impact on memory usage and performance and changes the OpenVDB branch used for the rest of Blender as well, this is not enabled by default yet, which will happen only after 2.82 was branched off. To enable it, build both dependencies and Blender itself with the "WITH_NANOVDB" CMake option. Reviewed By: brecht Differential Revision: https://developer.blender.org/D8794
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
/*
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* Copyright 2019, NVIDIA Corporation.
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* Copyright 2019, 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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#ifndef __KERNEL_COMPAT_OPTIX_H__
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#define __KERNEL_COMPAT_OPTIX_H__
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#define OPTIX_DONT_INCLUDE_CUDA
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#include <optix.h>
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#define __KERNEL_GPU__
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#define __KERNEL_CUDA__ // OptiX kernels are implicitly CUDA kernels too
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#define __KERNEL_OPTIX__
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#define CCL_NAMESPACE_BEGIN
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#define CCL_NAMESPACE_END
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#ifndef ATTR_FALLTHROUGH
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# define ATTR_FALLTHROUGH
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#endif
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typedef unsigned int uint32_t;
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typedef unsigned long long uint64_t;
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typedef unsigned short half;
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typedef unsigned long long CUtexObject;
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#ifdef CYCLES_CUBIN_CC
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# define FLT_MIN 1.175494350822287507969e-38f
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# define FLT_MAX 340282346638528859811704183484516925440.0f
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# define FLT_EPSILON 1.192092896e-07F
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#endif
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__device__ half __float2half(const float f)
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{
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half val;
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asm("{ cvt.rn.f16.f32 %0, %1;}\n" : "=h"(val) : "f"(f));
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return val;
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}
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/* Selective nodes compilation. */
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#ifndef __NODES_MAX_GROUP__
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# define __NODES_MAX_GROUP__ NODE_GROUP_LEVEL_MAX
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#endif
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#ifndef __NODES_FEATURES__
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# define __NODES_FEATURES__ NODE_FEATURE_ALL
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#endif
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#define ccl_device \
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__device__ __forceinline__ // Function calls are bad for OptiX performance, so inline everything
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#define ccl_device_inline ccl_device
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#define ccl_device_forceinline ccl_device
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#define ccl_device_noinline __device__ __noinline__
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#define ccl_device_noinline_cpu ccl_device
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#define ccl_global
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#define ccl_static_constant __constant__
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#define ccl_constant const
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#define ccl_local
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#define ccl_local_param
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#define ccl_private
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#define ccl_may_alias
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#define ccl_addr_space
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#define ccl_loop_no_unroll
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#define ccl_restrict __restrict__
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#define ccl_ref
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#define ccl_align(n) __align__(n)
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// Zero initialize structs to help the compiler figure out scoping
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#define ccl_optional_struct_init = {}
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#define kernel_data __params.data // See kernel_globals.h
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#define kernel_tex_array(t) __params.t
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#define kernel_tex_fetch(t, index) __params.t[(index)]
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#define kernel_assert(cond)
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/* Types */
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#include "util/util_half.h"
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#include "util/util_types.h"
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#endif /* __KERNEL_COMPAT_OPTIX_H__ */
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