blob: fae46bb102a368ac97c55f1f5e98c2a23535072c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#pragma once
CCL_NAMESPACE_BEGIN
ccl_device_noinline int svm_node_normal(KernelGlobals kg,
ccl_private ShaderData *sd,
ccl_private float *stack,
uint in_normal_offset,
uint out_normal_offset,
uint out_dot_offset,
int offset)
{
/* read extra data */
uint4 node1 = read_node(kg, &offset);
float3 normal = stack_load_float3(stack, in_normal_offset);
float3 direction;
direction.x = __int_as_float(node1.x);
direction.y = __int_as_float(node1.y);
direction.z = __int_as_float(node1.z);
direction = normalize(direction);
if (stack_valid(out_normal_offset))
stack_store_float3(stack, out_normal_offset, direction);
if (stack_valid(out_dot_offset))
stack_store_float(stack, out_dot_offset, dot(direction, normalize(normal)));
return offset;
}
CCL_NAMESPACE_END
|
