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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2013 Blender Foundation. All rights reserved. */
/** \file
* \ingroup shdnodes
*/
#include "node_shader_util.hh"
#include "UI_interface.h"
#include "UI_resources.h"
namespace blender::nodes::node_shader_vector_transform_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Vector>(N_("Vector"))
.default_value({0.5f, 0.5f, 0.5f})
.min(-10000.0f)
.max(10000.0f);
b.add_output<decl::Vector>(N_("Vector"));
}
static void node_shader_buts_vect_transform(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{
uiItemR(layout,
ptr,
"vector_type",
UI_ITEM_R_SPLIT_EMPTY_NAME | UI_ITEM_R_EXPAND,
nullptr,
ICON_NONE);
uiItemR(layout, ptr, "convert_from", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
uiItemR(layout, ptr, "convert_to", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
}
static void node_shader_init_vect_transform(bNodeTree * /*ntree*/, bNode *node)
{
NodeShaderVectTransform *vect = MEM_cnew<NodeShaderVectTransform>("NodeShaderVectTransform");
/* Convert World into Object Space per default */
vect->convert_to = 1;
node->storage = vect;
}
static const char *get_gpufn_name_from_to(short from, short to, bool is_direction)
{
switch (from) {
case SHD_VECT_TRANSFORM_SPACE_OBJECT:
switch (to) {
case SHD_VECT_TRANSFORM_SPACE_OBJECT:
return nullptr;
case SHD_VECT_TRANSFORM_SPACE_WORLD:
return is_direction ? "direction_transform_object_to_world" :
"point_transform_object_to_world";
case SHD_VECT_TRANSFORM_SPACE_CAMERA:
return is_direction ? "direction_transform_object_to_view" :
"point_transform_object_to_view";
}
break;
case SHD_VECT_TRANSFORM_SPACE_WORLD:
switch (to) {
case SHD_VECT_TRANSFORM_SPACE_WORLD:
return nullptr;
case SHD_VECT_TRANSFORM_SPACE_CAMERA:
return is_direction ? "direction_transform_world_to_view" :
"point_transform_world_to_view";
case SHD_VECT_TRANSFORM_SPACE_OBJECT:
return is_direction ? "direction_transform_world_to_object" :
"point_transform_world_to_object";
}
break;
case SHD_VECT_TRANSFORM_SPACE_CAMERA:
switch (to) {
case SHD_VECT_TRANSFORM_SPACE_CAMERA:
return nullptr;
case SHD_VECT_TRANSFORM_SPACE_WORLD:
return is_direction ? "direction_transform_view_to_world" :
"point_transform_view_to_world";
case SHD_VECT_TRANSFORM_SPACE_OBJECT:
return is_direction ? "direction_transform_view_to_object" :
"point_transform_view_to_object";
}
break;
}
return nullptr;
}
static int gpu_shader_vect_transform(GPUMaterial *mat,
bNode *node,
bNodeExecData * /*execdata*/,
GPUNodeStack *in,
GPUNodeStack *out)
{
struct GPUNodeLink *inputlink;
NodeShaderVectTransform *nodeprop = (NodeShaderVectTransform *)node->storage;
if (in[0].hasinput) {
inputlink = in[0].link;
}
else {
inputlink = GPU_constant(in[0].vec);
}
const bool is_direction = (nodeprop->type != SHD_VECT_TRANSFORM_TYPE_POINT);
const char *func_name = get_gpufn_name_from_to(
nodeprop->convert_from, nodeprop->convert_to, is_direction);
if (func_name) {
/* For cycles we have inverted Z */
/* TODO: pass here the correct matrices */
if (nodeprop->convert_from == SHD_VECT_TRANSFORM_SPACE_CAMERA &&
nodeprop->convert_to != SHD_VECT_TRANSFORM_SPACE_CAMERA) {
GPU_link(mat, "invert_z", inputlink, &inputlink);
}
GPU_link(mat, func_name, inputlink, &out[0].link);
if (nodeprop->convert_to == SHD_VECT_TRANSFORM_SPACE_CAMERA &&
nodeprop->convert_from != SHD_VECT_TRANSFORM_SPACE_CAMERA) {
GPU_link(mat, "invert_z", out[0].link, &out[0].link);
}
}
else {
GPU_link(mat, "set_rgb", inputlink, &out[0].link);
}
if (nodeprop->type == SHD_VECT_TRANSFORM_TYPE_NORMAL) {
GPU_link(mat, "vector_normalize", out[0].link, &out[0].link);
}
return true;
}
} // namespace blender::nodes::node_shader_vector_transform_cc
void register_node_type_sh_vect_transform()
{
namespace file_ns = blender::nodes::node_shader_vector_transform_cc;
static bNodeType ntype;
sh_node_type_base(&ntype, SH_NODE_VECT_TRANSFORM, "Vector Transform", NODE_CLASS_OP_VECTOR);
ntype.declare = file_ns::node_declare;
ntype.draw_buttons = file_ns::node_shader_buts_vect_transform;
ntype.initfunc = file_ns::node_shader_init_vect_transform;
node_type_storage(
&ntype, "NodeShaderVectTransform", node_free_standard_storage, node_copy_standard_storage);
ntype.gpu_fn = file_ns::gpu_shader_vect_transform;
nodeRegisterType(&ntype);
}
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