volume material

* data reorganisation - uses own values now instead of reusing surface material properties (i.e. an individual density value, rather than reusing alpha) Files saved with the old system won't load up the same after this.

* improved defaults and ui

1 files changed, 96 insertions, 11 deletions

diff --git a/source/blender/makesrna/intern/rna_material.c b/source/blender/makesrna/intern/rna_material.c
index 4ca1db09374..3f225321024 100644
--- a/source/blender/makesrna/intern/rna_material.c
+++ b/source/blender/makesrna/intern/rna_material.c
@@ -468,6 +468,75 @@ static void rna_def_material_mtex(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Ambient Factor", "Amount texture affects ambient.");
 	RNA_def_property_update(prop, NC_TEXTURE, NULL);
 
+	/* volume material */
+	prop= RNA_def_property(srna, "map_coloremission", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_EMISSION_COL);
+	RNA_def_property_ui_text(prop, "Emission Color", "Causes the texture to affect the colour of emission");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "map_colorabsorption", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_ABSORPTION_COL);
+	RNA_def_property_ui_text(prop, "Absorption Color", "Causes the texture to affect the result colour after absorption");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "map_density", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_DENSITY);
+	RNA_def_property_ui_text(prop, "Density", "Causes the texture to affect the volume's density");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "map_emission", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_EMISSION);
+	RNA_def_property_ui_text(prop, "Emission", "Causes the texture to affect the volume's emission");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "map_absorption", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_ABSORPTION);
+	RNA_def_property_ui_text(prop, "Absorption", "Causes the texture to affect the volume's absorption");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "map_scattering", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "mapto", MAP_SCATTERING);
+	RNA_def_property_ui_text(prop, "Scattering", "Causes the texture to affect the volume's scattering");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "coloremission_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "colfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Emission Color Factor", "Amount texture affects emission color.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "colorabsorption_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "colfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Absorpion Color Factor", "Amount texture affects diffuse color.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "density_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "varfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Density Factor", "Amount texture affects density.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "emission_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "varfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Emission Factor", "Amount texture affects emission.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "absorption_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "varfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Absorption Factor", "Amount texture affects absorption.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	prop= RNA_def_property(srna, "scattering_factor", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "varfac");
+	RNA_def_property_ui_range(prop, 0, 1, 10, 3);
+	RNA_def_property_ui_text(prop, "Scattering Factor", "Amount texture affects scattering.");
+	RNA_def_property_update(prop, NC_TEXTURE, NULL);
+	
+	/* end volume material */
+	
 	prop= RNA_def_property(srna, "enabled", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_funcs(prop, "rna_MaterialTextureSlot_enabled_get", "rna_MaterialTextureSlot_enabled_set");
 	RNA_def_property_ui_text(prop, "Enabled", "Enable this material texture slot.");
@@ -810,9 +879,9 @@ static void rna_def_material_volume(BlenderRNA *brna)
 
 	static EnumPropertyItem prop_scattering_items[] = {
 		{MA_VOL_SHADE_NONE, "NONE", 0, "None", ""},
-		{MA_VOL_SHADE_SINGLE, "SINGLE", 0, "Single", ""},
-		{MA_VOL_SHADE_MULTIPLE, "MULTIPLE", 0, "Multiple", ""},
-		{MA_VOL_SHADE_SINGLEPLUSMULTIPLE, "SINGLE_PLUS_MULTIPLE", 0, "Single + Multiple", ""},
+		{MA_VOL_SHADE_SINGLE, "SINGLE_SCATTERING", 0, "Single Scattering", ""},
+		{MA_VOL_SHADE_MULTIPLE, "MULTIPLE_SCATTERING", 0, "Multiple Scattering", ""},
+		{MA_VOL_SHADE_SINGLEPLUSMULTIPLE, "SINGLE_PLUS_MULTIPLE_SCATTERING", 0, "Single + Multiple Scattering", ""},
 		{0, NULL, 0, NULL, NULL}};
 
 	static EnumPropertyItem prop_stepsize_items[] = {
@@ -844,12 +913,14 @@ static void rna_def_material_volume(BlenderRNA *brna)
 	prop= RNA_def_property(srna, "step_size", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "stepsize");
 	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 1.0f, 1, 3);
 	RNA_def_property_ui_text(prop, "Step Size", "Distance between subsequent volume depth samples.");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
 	prop= RNA_def_property(srna, "shading_step_size", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "shade_stepsize");
 	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 1.0f, 1, 3);
 	RNA_def_property_ui_text(prop, "Shading Step Size", "Distance between subsequent volume shading samples.");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
@@ -894,15 +965,23 @@ static void rna_def_material_volume(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Depth Cutoff", "Stop ray marching early if transmission drops below this luminance - higher values give speedups in dense volumes at the expense of accuracy.");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
+	prop= RNA_def_property(srna, "density", PROP_FLOAT, PROP_PERCENTAGE);
+	RNA_def_property_float_sdna(prop, NULL, "density");
+	RNA_def_property_range(prop, 0.0f, 1.0f);
+	RNA_def_property_ui_text(prop, "Density", "The base density of the volume");
+	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
+
 	prop= RNA_def_property(srna, "density_scale", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "density_scale");
 	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 10.0f, 1, 3);
 	RNA_def_property_ui_text(prop, "Density Scale", "Multiplier for the material's density");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
 	prop= RNA_def_property(srna, "absorption", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "absorption");
 	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 10.0f, 1, 3);
 	RNA_def_property_ui_text(prop, "Absorption", "Amount of light that gets absorbed by the volume - higher values mean light travels less distance");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
@@ -915,9 +994,23 @@ static void rna_def_material_volume(BlenderRNA *brna)
 	prop= RNA_def_property(srna, "scattering", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "scattering");
 	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 10.0f, 1 ,3);
 	RNA_def_property_ui_text(prop, "Scattering", "Amount of light that gets scattered by the volume - values > 1.0 are non-physical");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
 	
+	prop= RNA_def_property(srna, "emission", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "emission");
+	RNA_def_property_range(prop, 0.0f, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0.0f, 10.0f, 1, 3);
+	RNA_def_property_ui_text(prop, "Emission", "Amount of light that gets emitted by the volume");
+	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
+	
+	prop= RNA_def_property(srna, "emission_color", PROP_FLOAT, PROP_COLOR);
+	RNA_def_property_float_sdna(prop, NULL, "emission_col");
+	RNA_def_property_array(prop, 3);
+	RNA_def_property_ui_text(prop, "Emission Color", "");
+	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING_DRAW, NULL);
+	
 	prop= RNA_def_property(srna, "use_alpha", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "shadeflag", MA_VOL_USEALPHA); /* use bitflags */
 	RNA_def_property_ui_text(prop, "Use Alpha", "Temp method for getting a usable alpha channel");
@@ -934,14 +1027,6 @@ static void rna_def_material_volume(BlenderRNA *brna)
 	RNA_def_property_range(prop, -1.0f, 1.0f);
 	RNA_def_property_ui_text(prop, "Asymmetry", "Continuum between forward scattering and back scattering");
 	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
-	
-	/*
-	prop= RNA_def_property(srna, "samples", PROP_INT, PROP_NONE);
-	RNA_def_property_int_sdna(prop, NULL, "samp_gloss_mir");
-	RNA_def_property_range(prop, 0, 1024);
-	RNA_def_property_ui_text(prop, "Gloss Samples", "Number of cone samples averaged for blurry reflections.");
-	RNA_def_property_update(prop, NC_MATERIAL|ND_SHADING, NULL);
-	*/
 }