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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup cmpnodes
*/
#include "UI_interface.h"
#include "UI_resources.h"
#include "GPU_material.h"
#include "COM_shader_node.hh"
#include "node_composite_util.hh"
/* **************** ALPHAOVER ******************** */
namespace blender::nodes::node_composite_alpha_over_cc {
NODE_STORAGE_FUNCS(NodeTwoFloats)
static void cmp_node_alphaover_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Float>(N_("Fac"))
.default_value(1.0f)
.min(0.0f)
.max(1.0f)
.subtype(PROP_FACTOR)
.compositor_domain_priority(2);
b.add_input<decl::Color>(N_("Image"))
.default_value({1.0f, 1.0f, 1.0f, 1.0f})
.compositor_domain_priority(0);
b.add_input<decl::Color>(N_("Image"), "Image_001")
.default_value({1.0f, 1.0f, 1.0f, 1.0f})
.compositor_domain_priority(1);
b.add_output<decl::Color>(N_("Image"));
}
static void node_alphaover_init(bNodeTree * /*ntree*/, bNode *node)
{
node->storage = MEM_cnew<NodeTwoFloats>(__func__);
}
static void node_composit_buts_alphaover(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{
uiLayout *col;
col = uiLayoutColumn(layout, true);
uiItemR(col, ptr, "use_premultiply", UI_ITEM_R_SPLIT_EMPTY_NAME, nullptr, ICON_NONE);
uiItemR(col, ptr, "premul", UI_ITEM_R_SPLIT_EMPTY_NAME, nullptr, ICON_NONE);
}
using namespace blender::realtime_compositor;
class AlphaOverShaderNode : public ShaderNode {
public:
using ShaderNode::ShaderNode;
void compile(GPUMaterial *material) override
{
GPUNodeStack *inputs = get_inputs_array();
GPUNodeStack *outputs = get_outputs_array();
const float premultiply_factor = get_premultiply_factor();
if (premultiply_factor != 0.0f) {
GPU_stack_link(material,
&bnode(),
"node_composite_alpha_over_mixed",
inputs,
outputs,
GPU_uniform(&premultiply_factor));
return;
}
if (get_use_premultiply()) {
GPU_stack_link(material, &bnode(), "node_composite_alpha_over_key", inputs, outputs);
return;
}
GPU_stack_link(material, &bnode(), "node_composite_alpha_over_premultiply", inputs, outputs);
}
bool get_use_premultiply()
{
return bnode().custom1;
}
float get_premultiply_factor()
{
return node_storage(bnode()).x;
}
};
static ShaderNode *get_compositor_shader_node(DNode node)
{
return new AlphaOverShaderNode(node);
}
} // namespace blender::nodes::node_composite_alpha_over_cc
void register_node_type_cmp_alphaover()
{
namespace file_ns = blender::nodes::node_composite_alpha_over_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_ALPHAOVER, "Alpha Over", NODE_CLASS_OP_COLOR);
ntype.declare = file_ns::cmp_node_alphaover_declare;
ntype.draw_buttons = file_ns::node_composit_buts_alphaover;
node_type_init(&ntype, file_ns::node_alphaover_init);
node_type_storage(
&ntype, "NodeTwoFloats", node_free_standard_storage, node_copy_standard_storage);
ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
nodeRegisterType(&ntype);
}
|
