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https://github.com/blender/blender
synced 2026-09-29 04:37:17 +03:00
6c74e82ecb
This adds the Boolean Math node to shader nodes. It's the same node that can already be used in Geometry Nodes and the Compositor. This also fixes the conversion from other types to boolean values so that it it consistent across different node tree types. Cycles doesn't have native support for booleans currently (it encodes them in integers), so for now this conversion is entirely handled in the inliner. The MaterialX implementation is omitted for now because it seems to need more work to properly integrate booleans (right now it appears to ignore all links going from a float to a boolean socket for example). Pull Request: https://projects.blender.org/blender/blender/pulls/162798
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/* SPDX-FileCopyrightText: 2026 Blender Authors
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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/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 int svm_boolean_math(const NodeBooleanMathType type, const int a_int, const int b_int)
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{
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const bool a = a_int > 0;
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const bool b = b_int > 0;
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bool result = false;
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switch (type) {
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case NODE_BOOLEAN_MATH_AND:
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result = a && b;
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break;
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case NODE_BOOLEAN_MATH_OR:
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result = a || b;
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break;
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case NODE_BOOLEAN_MATH_NOT:
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result = !a;
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break;
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case NODE_BOOLEAN_MATH_NAND:
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result = !(a && b);
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break;
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case NODE_BOOLEAN_MATH_NOR:
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result = !(a || b);
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break;
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case NODE_BOOLEAN_MATH_XNOR:
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result = a == b;
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break;
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case NODE_BOOLEAN_MATH_XOR:
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result = a != b;
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break;
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case NODE_BOOLEAN_MATH_IMPLY:
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result = !a || b;
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break;
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case NODE_BOOLEAN_MATH_NIMPLY:
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result = a && !b;
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break;
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}
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return result ? 1 : 0;
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}
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ccl_device_noinline void svm_node_boolean_math(
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ccl_private float *ccl_restrict stack, const ccl_global SVMNodeBooleanMath &ccl_restrict node)
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{
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const int a = stack_load(stack, node.value1);
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const int b = stack_load(stack, node.value2);
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const int result = svm_boolean_math(node.math_type, a, b);
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if (stack_valid(node.result_offset)) {
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stack_store_int(stack, node.result_offset, result);
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}
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}
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CCL_NAMESPACE_END
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