[Bf-blender-cvs] [8a8c61190b0] blender-v2.83-release: Docs: note that the color-ramp uses image alpha

[Campbell Barton]

Commit: 8a8c61190b0673ccfa20727fd8ea0f07f050fd14
Author: Campbell Barton
Date:   Thu May 21 23:03:24 2020 +1000
Branches: blender-v2.83-release
https://developer.blender.org/rB8a8c61190b0673ccfa20727fd8ea0f07f050fd14

Docs: note that the color-ramp uses image alpha

Avoid misunderstanding from T59110

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M	source/blender/makesrna/intern/rna_texture.c

===================================================================

diff --git a/source/blender/makesrna/intern/rna_texture.c b/source/blender/makesrna/intern/rna_texture.c
index 46b8d8647de..9184c54ae88 100644
--- a/source/blender/makesrna/intern/rna_texture.c
+++ b/source/blender/makesrna/intern/rna_texture.c
@@ -1565,7 +1565,11 @@ static void rna_def_texture(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_color_ramp", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "flag", TEX_COLORBAND);
   RNA_def_property_boolean_funcs(prop, NULL, "rna_Texture_use_color_ramp_set");
-  RNA_def_property_ui_text(prop, "Use Color Ramp", "Toggle color ramp operations");
+  RNA_def_property_ui_text(prop,
+                           "Use Color Ramp",
+                           "Map the texture intensity to the color ramp. "
+                           "Note that the alpha value is used for image textures, "
+                           "enable \"Calculate Alpha\" for images without an alpha channel");
   RNA_def_property_update(prop, 0, "rna_Texture_update");
 
   prop = RNA_def_property(srna, "color_ramp", PROP_POINTER, PROP_NEVER_NULL);