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Upgrade according to Blender Material.blend_method, Material.show_transparent_back deprecation. #258

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Upgrade according to Blender Material.blend_method, Material.show_transparent_back deprecation. #258

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16 changes: 11 additions & 5 deletions io_ogre/ogre/material.py
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Original file line number Diff line number Diff line change
Expand Up @@ -191,13 +191,19 @@ def generate_pass( self, mat, pass_name="" ):

color = mat_wrapper.base_color
alpha = 1.0
if mat.blend_method == "CLIP":
alpha = mat_wrapper.alpha
self.w.iword('alpha_rejection greater_equal').round(255*mat.alpha_threshold).nl()
elif mat.blend_method == "BLEND":
if mat.surface_render_method == "DITHERED":
# https://developer.blender.org/docs/release_notes/4.2/eevee_migration/#materials
if mat.use_nodes and mat.node_tree:
for node in mat.node_tree.nodes:
if type(node) == bpy.types.ShaderNodeMath and node.operation == 'GREATER_THAN':
alpha = mat_wrapper.alpha
self.w.iword('alpha_rejection greater_equal').round(255*mat.alpha_threshold).nl()
break
elif mat.surface_render_method == "BLENDED":
alpha = mat_wrapper.alpha
self.w.iword('scene_blend alpha_blend').nl()
if mat.show_transparent_back:
# https://developer.blender.org/docs/release_notes/4.2/python_api/
if mat.use_transparency_overlap:
self.w.iword('cull_hardware none').nl()
self.w.iword('depth_write off').nl()

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