Support for povray radiosity settings, adjust in scene panel.

1 files changed, 158 insertions, 8 deletions

diff --git a/release/io/engine_render_pov.py b/release/io/engine_render_pov.py
index c89d4390c77..44f34d890f6 100644
--- a/release/io/engine_render_pov.py
+++ b/release/io/engine_render_pov.py
@@ -419,15 +419,39 @@ def write_pov(filename, scene=None, info_callback = None):
 		mist = world.mist
 		
 		if mist.enabled:
-			file.write('\tfog {\n')
-			file.write('\t\tdistance %.6f\n' % mist.depth)
-			file.write('\t\tcolor rgbt<%.3g, %.3g, %.3g, %.3g>\n' % (tuple(world.horizon_color) + (1-mist.intensity,)))
-			#file.write('\t\tfog_offset %.6f\n' % mist.start)
-			#file.write('\t\tfog_alt 5\n')
-			#file.write('\t\tturbulence 0.2\n')
-			#file.write('\t\tturb_depth 0.3\n')
-			file.write('\t\tfog_type 1\n')
+			file.write('fog {\n')
+			file.write('\tdistance %.6f\n' % mist.depth)
+			file.write('\tcolor rgbt<%.3g, %.3g, %.3g, %.3g>\n' % (tuple(world.horizon_color) + (1-mist.intensity,)))
+			#file.write('\tfog_offset %.6f\n' % mist.start)
+			#file.write('\tfog_alt 5\n')
+			#file.write('\tturbulence 0.2\n')
+			#file.write('\tturb_depth 0.3\n')
+			file.write('\tfog_type 1\n')
+			file.write('}\n')
+	
+	def exportGlobalSettings(scene):
+		
+		file.write('global_settings {\n')
+
+		if scene.pov_radio_enable:
+			file.write('\tradiosity {\n')
+			file.write("\t\tadc_bailout %.4g\n" % scene.pov_radio_adc_bailout)
+			file.write("\t\talways_sample %d\n" % scene.pov_radio_always_sample)
+			file.write("\t\tbrightness %.4g\n" % scene.pov_radio_brightness)
+			file.write("\t\tcount %d\n" % scene.pov_radio_count)
+			file.write("\t\terror_bound %.4g\n" % scene.pov_radio_error_bound)
+			file.write("\t\tgray_threshold %.4g\n" % scene.pov_radio_gray_threshold)
+			file.write("\t\tlow_error_factor %.4g\n" % scene.pov_radio_low_error_factor)
+			file.write("\t\tminimum_reuse %.4g\n" % scene.pov_radio_minimum_reuse)
+			file.write("\t\tnearest_count %d\n" % scene.pov_radio_nearest_count)
+			file.write("\t\tnormal %d\n" % scene.pov_radio_normal)
+			file.write("\t\trecursion_limit %d\n" % scene.pov_radio_recursion_limit)
 			file.write('\t}\n')
+		
+		file.write('}\n')
+			
+
+		
 	
 	exportCamera()
 	#exportMaterials()
@@ -436,6 +460,7 @@ def write_pov(filename, scene=None, info_callback = None):
 	exportLamps(lamps)
 	exportMeshs(sel)
 	exportWorld(scene.world)
+	exportGlobalSettings(scene)
 	
 	file.close()
 
@@ -605,6 +630,8 @@ class PovrayRender(bpy.types.RenderEngine):
 
 bpy.types.register(PovrayRender)
 
+
+
 # Use some of the existing buttons.
 import buttons_scene
 buttons_scene.SCENE_PT_render.COMPAT_ENGINES.add('POVRAY_RENDER')
@@ -628,3 +655,126 @@ for member in dir(buttons_material):
 	try:		subclass.COMPAT_ENGINES.add('POVRAY_RENDER')
 	except:	pass
 del buttons_material
+
+class RenderButtonsPanel(bpy.types.Panel):
+	__space_type__ = "BUTTONS_WINDOW"
+	__region_type__ = "WINDOW"
+	__context__ = "scene"
+	# COMPAT_ENGINES must be defined in each subclass, external engines can add themselves here
+	
+	def poll(self, context):
+		rd = context.scene.render_data
+		return (rd.use_game_engine==False) and (rd.engine in self.COMPAT_ENGINES)
+
+# Radiosity panel, use in the scene for now.
+class SCENE_PT_povray_radiosity(RenderButtonsPanel):
+	__label__ = "Radiosity"
+	COMPAT_ENGINES = set(['POVRAY_RENDER'])
+
+	def draw_header(self, context):
+		layout = self.layout
+		scene = context.scene
+		layout.itemR(scene, "pov_radio_enable", text="")
+
+	def draw(self, context):
+		layout = self.layout
+		scene = context.scene
+		rd = scene.render_data
+		
+		layout.active = scene.pov_radio_enable
+		
+		split = layout.split()
+		
+		col = split.column()
+		
+		col.itemR(scene, "pov_radio_count")
+		col.itemR(scene, "pov_radio_recursion_limit")
+		col.itemR(scene, "pov_radio_error_bound")
+		
+		col.itemR(scene, "pov_radio_display_advanced")
+		
+		if scene.pov_radio_display_advanced:
+			col.itemR(scene, "pov_radio_adc_bailout")
+			col.itemR(scene, "pov_radio_brightness")
+			col.itemR(scene, "pov_radio_gray_threshold")
+			col.itemR(scene, "pov_radio_low_error_factor")
+			col.itemR(scene, "pov_radio_minimum_reuse")
+			col.itemR(scene, "pov_radio_nearest_count")
+			col.itemR(scene, "pov_radio_normal")
+			col.itemR(scene, "pov_radio_always_sample")
+		
+
+bpy.types.register(SCENE_PT_povray_radiosity)
+
+
+FloatProperty= bpy.types.Scene.FloatProperty
+IntProperty= bpy.types.Scene.IntProperty
+BoolProperty= bpy.types.Scene.BoolProperty
+
+# Not a real pov option, just to know if we should write
+BoolProperty(	attr="pov_radio_enable",
+				name="Enable Radiosity",
+				description="Enable povrays radiosity calculation.",
+				default= False)
+BoolProperty(	attr="pov_radio_display_advanced",
+				name="Advanced Options",
+				description="Show advanced options.",
+				default= False)
+
+# Real pov options
+FloatProperty(	attr="pov_radio_adc_bailout",
+				name="ADC Bailout",
+				description="The adc_bailout for radiosity rays. Use adc_bailout = 0.01 / brightest_ambient_object for good results.",
+				min=0.0, max=1000.0, soft_min=0.0, soft_max=1.0, default= 0.01)
+
+BoolProperty(	attr="pov_radio_always_sample",
+				name="Always Sample",
+				description="Only use the data from the pretrace step and not gather any new samples during the final radiosity pass..",
+				default= True)
+
+FloatProperty(	attr="pov_radio_brightness",
+				name="Brightness",
+				description="Ammount objects are brightened before being returned upwards to the rest of the system.",
+				min=0.0, max=1000.0, soft_min=0.0, soft_max=10.0, default= 1.0)
+
+IntProperty(	attr="pov_radio_count",
+				name="Ray Count",
+				description="number of rays that are sent out whenever a new radiosity value has to be calculated.",
+				min=1, max=1600, default= 35)
+
+FloatProperty(	attr="pov_radio_error_bound",
+				name="Error Bound",
+				description="one of the two main speed/quality tuning values, lower values are more accurate.",
+				min=0.0, max=1000.0, soft_min=0.1, soft_max=10.0, default= 1.8)
+
+FloatProperty(	attr="pov_radio_gray_threshold",
+				name="Gray Threshold",
+				description="one of the two main speed/quality tuning values, lower values are more accurate.",
+				min=0.0, max=1.0, default= 0.0)
+								
+FloatProperty(	attr="pov_radio_low_error_factor",
+				name="Low Error Factor",
+				description="If you calculate just enough samples, but no more, you will get an image which has slightly blotchy lighting.",
+				min=0.0, max=1.0, default= 0.5)
+
+# max_sample - not available yet
+
+FloatProperty(	attr="pov_radio_minimum_reuse",
+				name="Minimum Reuse",
+				description="Fraction of the screen width which sets the minimum radius of reuse for each sample point (At values higher than 2% expect errors).",
+				min=0.0, max=1.0, soft_min=0.1, soft_max=0.1, default= 0.015)
+				
+IntProperty(	attr="pov_radio_nearest_count",
+				name="Nearest Count",
+				description="Number of old ambient values blended together to create a new interpolated value.",
+				min=1, max=20, default= 5)
+				
+BoolProperty(	attr="pov_radio_normal",
+				name="Normals",
+				description="Radiosity estimation can be affected by normals.",
+				default= False)
+
+IntProperty(	attr="pov_radio_recursion_limit",
+				name="Recursion Limit",
+				description="how many recursion levels are used to calculate the diffuse inter-reflection.",
+				min=1, max=20, default= 3)