Cycles: add Point Info node

With (center) position, radius and random value outputs.

Eevee does not yet support rendering point clouds, but an untested
implementation of this node was added for when it does.

Ref T92573

4 files changed, 57 insertions, 1 deletions

diff --git a/source/blender/nodes/NOD_shader.h b/source/blender/nodes/NOD_shader.h
index 65720fc119b..57740ce3ad9 100644
--- a/source/blender/nodes/NOD_shader.h
+++ b/source/blender/nodes/NOD_shader.h
@@ -85,6 +85,7 @@ void register_node_type_sh_layer_weight(void);
 void register_node_type_sh_tex_coord(void);
 void register_node_type_sh_particle_info(void);
 void register_node_type_sh_hair_info(void);
+void register_node_type_sh_point_info(void);
 void register_node_type_sh_volume_info(void);
 void register_node_type_sh_script(void);
 void register_node_type_sh_normal_map(void);
@@ -146,7 +147,6 @@ void register_node_type_sh_custom_group(bNodeType *ntype);
 struct bNodeTreeExec *ntreeShaderBeginExecTree(struct bNodeTree *ntree);
 void ntreeShaderEndExecTree(struct bNodeTreeExec *exec);
 
-
 /**
  * Find an output node of the shader tree.
  *
diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h
index 66a2d3720ca..df820bf6dcf 100644
--- a/source/blender/nodes/NOD_static_types.h
+++ b/source/blender/nodes/NOD_static_types.h
@@ -96,6 +96,7 @@ DefNode(ShaderNode,     SH_NODE_LIGHT_FALLOFF,      0,                      "LIG
 DefNode(ShaderNode,     SH_NODE_OBJECT_INFO,        0,                      "OBJECT_INFO",        ObjectInfo,       "Object Info",       ""       )
 DefNode(ShaderNode,     SH_NODE_PARTICLE_INFO,      0,                      "PARTICLE_INFO",      ParticleInfo,     "Particle Info",     ""       )
 DefNode(ShaderNode,     SH_NODE_HAIR_INFO,          0,                      "HAIR_INFO",          HairInfo,         "Hair Info",         ""       )
+DefNode(ShaderNode,     SH_NODE_POINT_INFO,         0,                      "POINT_INFO",         PointInfo,        "Point Info",        ""       )
 DefNode(ShaderNode,     SH_NODE_VOLUME_INFO,        0,                      "VOLUME_INFO",        VolumeInfo,       "Volume Info",       ""       )
 DefNode(ShaderNode,     SH_NODE_WIREFRAME,          def_sh_tex_wireframe,   "WIREFRAME",          Wireframe,        "Wireframe",         ""       )
 DefNode(ShaderNode,     SH_NODE_WAVELENGTH,         0,                      "WAVELENGTH",         Wavelength,       "Wavelength",        ""       )
diff --git a/source/blender/nodes/shader/CMakeLists.txt b/source/blender/nodes/shader/CMakeLists.txt
index 4cf18429e0d..c8eb0b8d570 100644
--- a/source/blender/nodes/shader/CMakeLists.txt
+++ b/source/blender/nodes/shader/CMakeLists.txt
@@ -93,6 +93,7 @@ set(SRC
   nodes/node_shader_output_material.cc
   nodes/node_shader_output_world.cc
   nodes/node_shader_particle_info.cc
+  nodes/node_shader_point_info.cc
   nodes/node_shader_rgb.cc
   nodes/node_shader_rgb_to_bw.cc
   nodes/node_shader_script.cc
diff --git a/source/blender/nodes/shader/nodes/node_shader_point_info.cc b/source/blender/nodes/shader/nodes/node_shader_point_info.cc
new file mode 100644
index 00000000000..adc58ca065a
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_point_info.cc
@@ -0,0 +1,54 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2005 Blender Foundation.
+ * All rights reserved.
+ */
+
+#include "node_shader_util.hh"
+
+namespace blender::nodes::node_shader_point_info_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  b.add_output<decl::Vector>(N_("Position"));
+  b.add_output<decl::Float>(N_("Radius"));
+  b.add_output<decl::Float>(N_("Random"));
+}
+
+static int node_shader_gpu_point_info(GPUMaterial *mat,
+                                      bNode *node,
+                                      bNodeExecData *UNUSED(execdata),
+                                      GPUNodeStack *in,
+                                      GPUNodeStack *out)
+{
+  return GPU_stack_link(mat, node, "node_point_info", in, out);
+}
+
+}  // namespace blender::nodes::node_shader_point_info_cc
+
+/* node type definition */
+void register_node_type_sh_point_info()
+{
+  namespace file_ns = blender::nodes::node_shader_point_info_cc;
+
+  static bNodeType ntype;
+
+  sh_node_type_base(&ntype, SH_NODE_POINT_INFO, "Point Info", NODE_CLASS_INPUT);
+  ntype.declare = file_ns::node_declare;
+  node_type_gpu(&ntype, file_ns::node_shader_gpu_point_info);
+
+  nodeRegisterType(&ntype);
+}