Fisheye Camera for Cycles

For sample images see:
http://www.dalaifelinto.com/?p=399 (equisolid)
http://www.dalaifelinto.com/?p=389 (equidistant)

The 'use_panorama' option is now part of a new Camera type: 'Panorama'.
Created two other panorama cameras:

- Equisolid: most of lens in the market simulate this lens - e.g. Nikon, Canon, ...)
             this works as a real lens up to an extent. The final result takes the
             sensor dimensions into account also.
             .:. to simulate a Nikon DX2S with a 10.5mm lens do:
                 sensor: 23.7 x 15.7
                 fisheye lens: 10.5
                 fisheye fov: 180
                 render dimensions: 4288 x 2848

- Equidistant: this is not a real lens model. Although the old equidistant lens simulate
               this lens. The result is always as a circular fisheye that takes the whole sensor
               (in other words, it doesn't take the sensor into consideration).
               This is perfect for fulldomes ;)

               For the UI we have 10 to 360 as soft values and 10 to 3600 as hard values (because we can).


Reference material:
http://www.hdrlabs.com/tutorials/downloads_files/HDRI%20for%20CGI.pdf
http://www.bobatkins.com/photography/technical/field_of_view.html

Note, this is not a real simulation of the light path through the lens.
The ideal solution would be this:
https://graphics.stanford.edu/wikis/cs348b-11/Assignment3
http://www.graphics.stanford.edu/papers/camera/


Thanks Brecht for the fix, suggestions and code review.
Kudos for the dome community for keeping me stimulated on the topic since 2009 ;)

Patch partly implemented during lab time at VisGraf, IMPA - Rio de Janeiro.

1 files changed, 1 insertions, 6 deletions

diff --git a/source/blender/makesrna/intern/rna_camera.c b/source/blender/makesrna/intern/rna_camera.c
index 180479d6f63..5331cfe8775 100644
--- a/source/blender/makesrna/intern/rna_camera.c
+++ b/source/blender/makesrna/intern/rna_camera.c
@@ -97,6 +97,7 @@ void RNA_def_camera(BlenderRNA *brna)
 	static EnumPropertyItem prop_type_items[] = {
 		{CAM_PERSP, "PERSP", 0, "Perspective", ""},
 		{CAM_ORTHO, "ORTHO", 0, "Orthographic", ""},
+		{CAM_PANO, "PANO", 0, "Panoramic", ""},
 		{0, NULL, 0, NULL, NULL}};
 	static EnumPropertyItem prop_draw_type_extra_items[] = {
 		{CAM_DTX_CENTER, "CENTER", 0, "Center", ""},
@@ -271,12 +272,6 @@ void RNA_def_camera(BlenderRNA *brna)
 	RNA_def_property_enum_items(prop, prop_lens_unit_items);
 	RNA_def_property_ui_text(prop, "Lens Unit", "Unit to edit lens in for the user interface");
 
-	prop = RNA_def_property(srna, "use_panorama", PROP_BOOLEAN, PROP_NONE);
-	RNA_def_property_boolean_sdna(prop, NULL, "flag", CAM_PANORAMA);
-	RNA_def_property_ui_text(prop, "Panorama",
-	                         "Render the scene with a cylindrical camera for pseudo-fisheye lens effects");
-	RNA_def_property_update(prop, NC_OBJECT|ND_DRAW, NULL);
-
 	/* pointers */
 	rna_def_animdata_common(srna);