Blender Internal: Add "Lamp Data" shader node that allows shaders to acquire information such as light vector from specified Lamp.

For now this provides the following outputs:

- Color
- Light Vector
- Distance
- Shadow
- Visibility Factor

Note: Color output is multiplied by the lamp energy.  Multiplication of
color*max(dot(light_vector,normal_vector),0)*shadow*visibility_factor
produces the exact same result as the Lambert shader.

Many thanks to Brecht for code review and discussion!

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blenderplayer/bad_level_call_stubs/stubs.c b/source/blenderplayer/bad_level_call_stubs/stubs.c
index d79da3f3d6f..7ff5f83c21c 100644
--- a/source/blenderplayer/bad_level_call_stubs/stubs.c
+++ b/source/blenderplayer/bad_level_call_stubs/stubs.c
@@ -173,6 +173,7 @@ void modifier_skin_customdata_ensure(struct Object *ob) {STUB_ASSERT(0);}
 /* nodes */
 struct RenderResult *RE_GetResult(struct Render *re) {STUB_ASSERT(0); return (struct RenderResult *) NULL;}
 struct Render *RE_GetRender(const char *name) {STUB_ASSERT(0); return (struct Render *) NULL;}
+float RE_lamp_get_data(struct ShadeInput *shi, struct Object *lamp_obj, float col[3], float lv[3], float *dist) {STUB_ASSERT(0); return 0.0f;}
 
 /* blenkernel */
 void RE_FreeRenderResult(struct RenderResult *res) {STUB_ASSERT(0);}