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 * Remove specific license info from outdated readme.txt, instead leave details to the source files.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
73 lines
2.5 KiB
C
73 lines
2.5 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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/* Vector Rotate */
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ccl_device_noinline void svm_node_vector_rotate(ccl_private ShaderData *sd,
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ccl_private float *stack,
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uint input_stack_offsets,
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uint axis_stack_offsets,
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uint result_stack_offset)
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{
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uint type, vector_stack_offset, rotation_stack_offset, center_stack_offset, axis_stack_offset,
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angle_stack_offset, invert;
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svm_unpack_node_uchar4(
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input_stack_offsets, &type, &vector_stack_offset, &rotation_stack_offset, &invert);
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svm_unpack_node_uchar3(
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axis_stack_offsets, ¢er_stack_offset, &axis_stack_offset, &angle_stack_offset);
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if (stack_valid(result_stack_offset)) {
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float3 vector = stack_load_float3(stack, vector_stack_offset);
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float3 center = stack_load_float3(stack, center_stack_offset);
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float3 result = make_float3(0.0f, 0.0f, 0.0f);
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if (type == NODE_VECTOR_ROTATE_TYPE_EULER_XYZ) {
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float3 rotation = stack_load_float3(stack, rotation_stack_offset); // Default XYZ.
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Transform rotationTransform = euler_to_transform(rotation);
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if (invert) {
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result = transform_direction_transposed(&rotationTransform, vector - center) + center;
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}
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else {
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result = transform_direction(&rotationTransform, vector - center) + center;
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}
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}
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else {
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float3 axis;
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float axis_length;
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switch (type) {
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case NODE_VECTOR_ROTATE_TYPE_AXIS_X:
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axis = make_float3(1.0f, 0.0f, 0.0f);
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axis_length = 1.0f;
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break;
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case NODE_VECTOR_ROTATE_TYPE_AXIS_Y:
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axis = make_float3(0.0f, 1.0f, 0.0f);
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axis_length = 1.0f;
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break;
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case NODE_VECTOR_ROTATE_TYPE_AXIS_Z:
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axis = make_float3(0.0f, 0.0f, 1.0f);
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axis_length = 1.0f;
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break;
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default:
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axis = stack_load_float3(stack, axis_stack_offset);
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axis_length = len(axis);
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break;
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}
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float angle = stack_load_float(stack, angle_stack_offset);
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angle = invert ? -angle : angle;
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result = (axis_length != 0.0f) ?
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rotate_around_axis(vector - center, axis / axis_length, angle) + center :
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vector;
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}
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stack_store_float3(stack, result_stack_offset, result);
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}
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}
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CCL_NAMESPACE_END
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