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7ee94c067c
* Pass socket links and values in structs for each SVM node. * Always pass default values along with stack offset, encoded in SVMInputFloat and SVMInputFloat3. For slightly more efficient memory access the stack offset is encoded in a NaN float. * Simplify SVMCompiler API to use input_float, input_float3 input_link and output functions, instead of manual stack assignment. This was a leftover from early CUDA versions and old GPUs, where data was stored in textures as there was no L1/L2 cache for global memory. Assisted-by: Claude Opus 4.6 Co-authored-by: Sergey Sharybin <sergey@blender.org> Pull Request: https://projects.blender.org/blender/blender/pulls/156612
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 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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#include "kernel/svm/math_util.h"
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#include "kernel/svm/node_types.h"
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#include "kernel/svm/util.h"
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CCL_NAMESPACE_BEGIN
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ccl_device_noinline void svm_node_math(ccl_private float *ccl_restrict stack,
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const ccl_global SVMNodeMath &ccl_restrict node)
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{
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const float a = stack_load(stack, node.value1);
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const float b = stack_load(stack, node.value2);
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const float c = stack_load(stack, node.value3);
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const float result = svm_math(node.math_type, a, b, c);
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stack_store_float(stack, node.result_offset, result);
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}
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template<typename Float3Type>
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ccl_device_noinline void svm_node_vector_math(
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ccl_private float *ccl_restrict stack, const ccl_global SVMNodeVectorMath &ccl_restrict node)
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{
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using FloatType = dual_scalar_t<Float3Type>;
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const Float3Type a = stack_load<Float3Type>(stack, node.a);
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const Float3Type b = stack_load<Float3Type>(stack, node.b);
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const Float3Type c = stack_load<Float3Type>(stack, node.c);
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const FloatType param1 = stack_load<FloatType>(stack, node.param1);
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FloatType value = make_zero<FloatType>();
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Float3Type vector = make_zero<Float3Type>();
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svm_vector_math(&value, &vector, node.math_type, a, b, c, param1);
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if (stack_valid(node.value_offset)) {
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stack_store(stack, node.value_offset, value);
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}
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if (stack_valid(node.vector_offset)) {
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stack_store(stack, node.vector_offset, vector);
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}
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}
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CCL_NAMESPACE_END
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