From 7d4e4c0b34a613dd3c0220475ae4e448197522c1 Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Sat, 12 Mar 2011 23:17:12 +0100
Subject: initial commit. now I can start playing with stuff!

---
 include/rvl/GXLighting.h | 94 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100755 include/rvl/GXLighting.h

(limited to 'include/rvl/GXLighting.h')

diff --git a/include/rvl/GXLighting.h b/include/rvl/GXLighting.h
new file mode 100755
index 0000000..26139b9
--- /dev/null
+++ b/include/rvl/GXLighting.h
@@ -0,0 +1,94 @@
+#ifndef __GXLIGHTING_H__
+#define __GXLIGHTING_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*---------------------------------------------------------------------------*/
+#include "rvl/GXStruct.h"
+
+/*---------------------------------------------------------------------------*/
+void GXInitLightAttn(
+         GXLightObj*   lt_obj,
+         f32           a0,
+         f32           a1,
+         f32           a2,
+         f32           k0,
+         f32           k1,
+         f32           k2 );
+
+void GXInitLightAttnA ( GXLightObj *lt_obj, f32 a0, f32 a1, f32 a2);
+void GXInitLightAttnK ( GXLightObj *lt_obj, f32 k0, f32 k1, f32 k2 );
+
+void GXInitLightSpot(
+         GXLightObj*   lt_obj,
+         f32           cutoff,
+         GXSpotFn      spot_func );
+
+void GXInitLightDistAttn(
+         GXLightObj*   lt_obj,
+         f32           ref_distance,
+         f32           ref_brightness,
+         GXDistAttnFn  dist_func );
+
+
+void GXInitLightPos 	( GXLightObj* lt_obj, f32 x, f32 y, f32 z );
+void GXInitLightColor 	( GXLightObj* lt_obj, GXColor color );
+void GXLoadLightObjImm 	( const GXLightObj* lt_obj, GXLightID light );
+void GXLoadLightObjIndx	( u32 lt_obj_indx, GXLightID light );
+void GXSetChanAmbColor 	( GXChannelID chan, GXColor amb_color );
+void GXSetChanMatColor	( GXChannelID chan, GXColor mat_color );
+void GXSetNumChans      ( u8 nChans );
+
+void GXInitLightDir 	( GXLightObj* lt_obj, f32 nx, f32 ny, f32 nz );
+
+// New functions to set light direction and half-angle.
+void GXInitSpecularDir 	( GXLightObj* lt_obj, f32 nx, f32 ny, f32 nz );
+void GXInitSpecularDirHA(
+        GXLightObj* lt_obj,
+        f32         nx,
+        f32         ny,
+        f32         nz,
+        f32         hx,
+        f32         hy,
+        f32         hz );
+
+void GXSetChanCtrl(
+        GXChannelID   chan,
+        GXBool        enable,
+        GXColorSrc    amb_src,
+        GXColorSrc    mat_src,
+        u32           light_mask,
+        GXDiffuseFn   diff_fn,
+        GXAttnFn      attn_fn );
+
+/*---------------------------------------------------------------------------*/
+// Convenient Macros
+
+#define GXInitLightPosv(lo,vec) \
+    (GXInitLightPos((lo), *(f32*)(vec), *((f32*)(vec)+1), *((f32*)(vec)+2)))
+
+#define GXInitLightDirv(lo,vec) \
+    (GXInitLightDir((lo), *(f32*)(vec), *((f32*)(vec)+1), *((f32*)(vec)+2)))
+
+#define GXInitSpecularDirv(lo,vec) \
+    (GXInitSpecularDir((lo), *(f32*)(vec), *((f32*)(vec)+1), *((f32*)(vec)+2)))
+
+#define GXInitSpecularDirHAv(lo,vec0,vec1) \
+    (GXInitSpecularDirHA((lo), \
+    *(f32*)(vec0), *((f32*)(vec0)+1), *((f32*)(vec0)+2), \
+    *(f32*)(vec1), *((f32*)(vec1)+1), *((f32*)(vec1)+2)))
+
+#define GXInitLightShininess(lobj, shininess) \
+    (GXInitLightAttn(lobj, 0.0F, 0.0F, 1.0F,  \
+                    (shininess)/2.0F, 0.0F,   \
+                    1.0F-(shininess)/2.0F ))
+
+
+/*---------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __GXLIGHTING_H__
-- 
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