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Cycles Volume Render: work on nodes and closures.

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* Henyey-Greenstein scattering closure implementation.
* Rename transparent to absorption node and isotropic to scatter node.
* Volume density is folded into the closure weights.
* OSL support for volume closures and nodes.
* This commit has no user visible changes, there is no volume render code yet.

This is work by "storm", Stuart Broadfoot, Thomas Dinges and myself.
This commit is contained in:
Brecht Van Lommel
2013-12-28 01:54:44 +01:00
parent a06c9c277a
commit a35db17cee
28 changed files with 344 additions and 129 deletions
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8
intern/cycles/app/cycles_xml.cpp
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@@ -452,11 +452,11 @@ static void xml_read_shader_graph(const XMLReadState& state, Shader *shader, pug
else if(string_iequals(node.name(), "background")) {
snode = new BackgroundNode();
}
else if(string_iequals(node.name(), "transparent_volume")) {
snode = new TransparentVolumeNode();
else if(string_iequals(node.name(), "absorption_volume")) {
snode = new AbsorptionVolumeNode();
}
else if(string_iequals(node.name(), "isotropic_volume")) {
snode = new IsotropicVolumeNode();
else if(string_iequals(node.name(), "scatter_volume")) {
snode = new ScatterVolumeNode();
}
else if(string_iequals(node.name(), "geometry")) {
snode = new GeometryNode();