1 files changed, 0 insertions, 130 deletions
diff --git a/src/demos/hdr/shaders/cg/hdr.cg b/src/demos/hdr/shaders/cg/hdr.cg
deleted file mode 100755
index 3a0cafd..0000000
--- a/src/demos/hdr/shaders/cg/hdr.cg
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
-   Cg functions to decode and filter textures in Radiance (RGBE) high dynamic range format
-   sgg 2/15/02
-
-   http://www.graphics.cornell.edu/~bjw/rgbe.html
-*/
-
-#if 0
-typedef float4 vec4;
-typedef float3 vec3;
-typedef float2 vec2;
-typedef float real;
-#define texRECT f4texRECT
-#define texCUBE f4texCUBE
-#else
-typedef half4 vec4;
-typedef half3 vec3;
-typedef half2 vec2;
-typedef half real;
-#define texRECT h4texRECT
-#define texCUBE h4texCUBE
-#endif
-
-struct fragin
-{
-    float4 wpos : WPOS;
-    float3 tex0 : TEXCOORD0;
-    float3 tex1 : TEXCOORD1;
-    float4 col0 : COLOR0;
-};
-
-// Lookup in RGBE-encoded rectangle texture
-vec3 texRECT_RGBE(uniform samplerRECT tex, float2 t)
-{
-   vec4 rgbe = texRECT(tex, t);
-   real e = (rgbe[3] * 255) - 128;
-   return rgbe.xyz * exp2(e);
-}
-
-// Lookup in RGBE-encoded cube map texture
-vec3 texCUBE_RGBE(uniform samplerCUBE tex, float3 t)
-{
-   vec4 rgbe = texCUBE(tex, t);
-   real e = (rgbe[3] * 255) - 128;
-   return rgbe.xyz * exp2(e);
-}
-
-// Lookup in RGBE-encoded rectangle texture with filtering
-vec3 texRECT_RGBE_Bilinear(uniform samplerRECT tex, half2 t)
-{
-  float2 f = frac(t);
-  vec3 t0 = texRECT_RGBE(tex, t);
-  vec3 t1 = texRECT_RGBE(tex, t + half2(1,0) );
-  vec3 t2  = lerp(t0, t1, f[0]);
-  t0 = texRECT_RGBE(tex, t + half2(0,1) );
-  t1 = texRECT_RGBE(tex, t + half2(1,1) );
-  t0 = lerp(t0, t1, f[0]);
-  t0 = lerp(t2, t0, f[1]);
-  return t0;
-}
-
-// Lookup in cubemap encoded as two HILO cube maps
-vec3 texCUBE_hilo(uniform samplerCUBE rg_tex : TEXUNIT0, uniform samplerCUBE b_tex : TEXUNIT1, float3 t)
-{
-  vec3 c;
-  c.xy = texCUBE(rg_tex, t).xy;
-  c.z = texCUBE(b_tex, t).x;
-//  c = c * c;
-  return c;
-}
-
-// Lookup in rectangle texture encoded as two HILO cube maps
-vec3 texRECT_hilo(uniform samplerRECT rg_tex : TEXUNIT0, uniform samplerRECT b_tex : TEXUNIT1, float2 t)
-{
-  vec3 c;
-  c.xy = texRECT(rg_tex, t).xy;
-  c.z = texRECT(b_tex, t).x;
-  return c;
-}
-
-// bilinear lookup in float texture
-vec4 texRECT_bilinear(uniform samplerRECT tex, half2 t)
-{
-  float2 f = frac(t);
-  vec4 t0 = texRECT(tex, t);
-  vec4 t1 = texRECT(tex, t + half2(1,0) );
-  vec4 t2  = lerp(t0, t1, f[0]);
-  t0 = texRECT(tex, t + half2(0,1) );
-  t1 = texRECT(tex, t + half2(1,1) );
-  t0 = lerp(t0, t1, f[0]);
-  t0 = lerp(t2, t0, f[1]);
-  return t0;
-}
-
-// applying vignetting based on window coordinates
-void vignette(inout float3 c, float4 wpos, const float2 win_bias, const float2 win_scale)
-{
-  // convert window coord to [-1, 1] range
-  wpos.xy = (wpos.xy - win_bias) * win_scale;
-  // calculate distance from origin
-  float r = length(wpos.xy);
-  r = 1.0 - smoothstep(0.8, 1.5, r);
-  c = c * r;
-}
-
-// refraction function from Renderman spec
-// I = incident direction, N = normal, eta = relative index of refraction
-half3 my_refract(half3 I, half3 N, half eta)
-{
-  half IdotN = dot(I,N);
-  half k = 1 - eta*eta*(1 - IdotN*IdotN);
-
-  return eta*I - (eta*IdotN + sqrt(k))*N;
-}
-
-// fresnel approximation
-half my_fresnel(half3 I, half3 N, half power, half scale, half bias)
-{
-  return bias + (pow(max(0.0, 1.0 - dot(I, N)), power) * scale);
-}
-
-// transform a direction vector by a 4x4 matrix
-float3 transform_dir(float4x4 m, float3 v)
-{
-  float3 o;
-  o.x = dot(v, m._11_12_13);
-  o.y = dot(v, m._21_22_23);
-  o.z = dot(v, m._31_32_33);
-  return o;
-}