119fc054f8
Restriction of the nodes api to clearly define never-null function arguments. Side effects: some assertions and null-check (with early return) were removed. On the caller side is ensured to never derefer null to pass argument (mainly in RNA). In addition, one pointer argument now actually a return type. By-reference return types instead of pointers going to be separate kind of change since also imply of cleaning up variables created from reference. Also good future improvement would be to mark a copy-constructor as explicit for DNA node types. Pull Request: https://projects.blender.org/blender/blender/pulls/134627
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2005 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "node_shader_util.hh"
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namespace blender::nodes::node_shader_light_path_cc {
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static void node_declare(NodeDeclarationBuilder &b)
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{
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b.add_output<decl::Float>("Is Camera Ray");
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b.add_output<decl::Float>("Is Shadow Ray");
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b.add_output<decl::Float>("Is Diffuse Ray");
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b.add_output<decl::Float>("Is Glossy Ray");
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b.add_output<decl::Float>("Is Singular Ray");
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b.add_output<decl::Float>("Is Reflection Ray");
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b.add_output<decl::Float>("Is Transmission Ray");
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b.add_output<decl::Float>("Is Volume Scatter Ray");
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b.add_output<decl::Float>("Ray Length");
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b.add_output<decl::Float>("Ray Depth");
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b.add_output<decl::Float>("Diffuse Depth");
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b.add_output<decl::Float>("Glossy Depth");
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b.add_output<decl::Float>("Transparent Depth");
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b.add_output<decl::Float>("Transmission Depth");
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}
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static int node_shader_gpu_light_path(GPUMaterial *mat,
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bNode *node,
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bNodeExecData * /*execdata*/,
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GPUNodeStack *in,
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GPUNodeStack *out)
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{
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return GPU_stack_link(mat, node, "node_light_path", in, out);
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}
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NODE_SHADER_MATERIALX_BEGIN
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#ifdef WITH_MATERIALX
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{
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/* NOTE: This node isn't supported by MaterialX. Only default values returned. */
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if (STREQ(socket_out_->name, "Is Camera Ray")) {
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return val(1.0f);
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}
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if (STREQ(socket_out_->name, "Ray Length")) {
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return val(1.0f);
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}
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NodeItem res = val(0.0f);
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return res;
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}
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#endif
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NODE_SHADER_MATERIALX_END
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} // namespace blender::nodes::node_shader_light_path_cc
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/* node type definition */
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void register_node_type_sh_light_path()
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{
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namespace file_ns = blender::nodes::node_shader_light_path_cc;
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static blender::bke::bNodeType ntype;
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sh_node_type_base(&ntype, "ShaderNodeLightPath", SH_NODE_LIGHT_PATH);
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ntype.ui_name = "Light Path";
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ntype.ui_description =
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"Retrieve the type of incoming ray for which the shader is being executed.\nTypically used "
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"for non-physically-based tricks";
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ntype.enum_name_legacy = "LIGHT_PATH";
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ntype.nclass = NODE_CLASS_INPUT;
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ntype.declare = file_ns::node_declare;
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ntype.gpu_fn = file_ns::node_shader_gpu_light_path;
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ntype.materialx_fn = file_ns::node_shader_materialx;
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blender::bke::node_register_type(ntype);
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}
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