Revert "RPRBLND-1793: Add Volume Scatter node support. (#312)"

This reverts commit a1041cd.

Author: bsavery

src/rprblender/nodes/__init__.py

@@ -58,7 +58,6 @@ def poll(cls, context):
         NodeItem('ShaderNodeMixShader'),
         NodeItem('ShaderNodeEmission'),
         NodeItem('ShaderNodeVolumePrincipled'),
-        NodeItem('ShaderNodeVolumeScatter'),
         NodeItem('RPRShaderNodeUber'),
         NodeItem('RPRShaderNodePassthrough'),
         NodeItem('RPRShaderNodeLayered'),

src/rprblender/nodes/blender_nodes.py

@@ -29,7 +29,6 @@
 from .node_parser import BaseNodeParser, RuleNodeParser, NodeParser, MaterialError
 from .node_item import NodeItem
 from rprblender.engine.context_hybrid import RPRContext as RPRContextHybrid
-from rprblender.engine.context import RPRContext2
 from rprblender.utils import BLENDER_VERSION
 
 from rprblender.utils import logging
@@ -2275,42 +2274,6 @@ def rgba(temperature):
         return rpr_node
 
 
-class ShaderNodeVolumeScatter(NodeParser):
-    def export(self):
-        color = self.get_input_value('Color')
-        density = self.get_input_value('Density')
-        anisotropy = self.get_input_value('Anisotropy')
-
-        rpr_node = self.create_node(pyrpr.MATERIAL_NODE_VOLUME, {
-            pyrpr.MATERIAL_INPUT_G: anisotropy,
-            pyrpr.MATERIAL_INPUT_MULTISCATTER: True,
-        })
-
-        if isinstance(self.rpr_context, RPRContext2):
-            rpr_node.set_input(pyrpr.MATERIAL_INPUT_COLOR, color)
-            rpr_node.set_input(pyrpr.MATERIAL_INPUT_DENSITY, density)
-        else:
-            rpr_node.set_input(pyrpr.MATERIAL_INPUT_SCATTERING, color * density)
-            rpr_node.set_input(pyrpr.MATERIAL_INPUT_ABSORBTION, density)
-
-        # getting scalar data for hetero volume data since it does not work with textures
-        color = self.get_input_scalar('Color')
-        density = self.get_input_scalar('Density')
-        anisotropy = self.get_input_scalar('Anisotropy')
-
-        # storing hetero volume data as an additional field 'data' of MaterialNode object
-        rpr_node.data.data = {
-            'color': color.data[:3],
-            'density': density.get_channel(0).data,
-            'anisotropy': anisotropy.get_channel(0).data,
-        }
-
-        return rpr_node
-
-    def export_hybrid(self):
-        return None
-
-
 class ShaderNodeCombineHSV(NodeParser):
     """ Combine 3 input values to vector/color (v1, v2, v3, 0.0), accept input maps """
     def export(self):