diff options
author | Kenneth Russel <[email protected]> | 2005-05-27 19:45:51 +0000 |
---|---|---|
committer | Kenneth Russel <[email protected]> | 2005-05-27 19:45:51 +0000 |
commit | 9d209d3b6ae12604e666d7b655bd1f19e70ee48b (patch) | |
tree | 5eb780835a316cbb62a9718a2757a3d51c31adb5 /src/demos/hdr/shaders | |
parent | 02acfb8e24959f43cada34366598236a51b782bb (diff) |
Added Java/JOGL port of NVidia HDR demo.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@80 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
Diffstat (limited to 'src/demos/hdr/shaders')
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/object.arbfp1 | 41 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/object_hilo.arbfp1 | 45 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/object_vp.arbvp1 | 42 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/recompile.txt | 7 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/shrink.arbfp1 | 34 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/skybox.arbfp1 | 22 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/skybox_hilo.arbfp1 | 27 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/arbfp1/tonemap.arbfp1 | 64 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/hdr.cg | 130 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/object.cg | 30 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/object_hilo.cg | 31 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/object_vp.cg | 43 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/shrink.cg | 17 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/skybox.cg | 8 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/skybox_hilo.cg | 9 | ||||
-rwxr-xr-x | src/demos/hdr/shaders/cg/tonemap.cg | 37 |
16 files changed, 587 insertions, 0 deletions
diff --git a/src/demos/hdr/shaders/arbfp1/object.arbfp1 b/src/demos/hdr/shaders/arbfp1/object.arbfp1 new file mode 100755 index 0000000..30ee986 --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/object.arbfp1 @@ -0,0 +1,41 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/object.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.envMap : TEXUNIT0 +#var float4 In.HPosition : : : 0 : 0 +#var float4 In.P : : : 0 : 0 +#var float3 In.N : $vin.TEX1 : TEX1 : 0 : 1 +#var float3 In.I : $vin.TEX2 : TEX2 : 0 : 1 +#var samplerCUBE envMap : TEXUNIT0 : texunit 0 : 1 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 2 1 0 5 +#const c[1] = 0.9799805 0.02000427 +PARAM c[2] = { { 2, 1, 0, 5 }, + { 0.97998047, 0.020004272 } }; +TEMP R0; +TEMP R1; +DP3 R0.y, fragment.texcoord[2], fragment.texcoord[2]; +RSQ R0.w, R0.y; +DP3 R0.x, fragment.texcoord[1], fragment.texcoord[1]; +RSQ R0.x, R0.x; +MUL R1.xyz, R0.w, fragment.texcoord[2]; +MUL R0.xyz, R0.x, fragment.texcoord[1]; +DP3 R0.w, -R1, R0; +ADD R0.w, -R0, c[0].y; +DP3 R1.w, R0, R1; +MAX R0.w, R0, c[0].z; +MUL R0.xyz, R0, R1.w; +POW R0.w, R0.w, c[0].w; +MAD R0.xyz, -R0, c[0].x, R1; +MAD R0.w, R0, c[1].x, c[1].y; +TEX R0.xyz, R0, texture[0], CUBE; +MUL result.color.xyz, R0, R0.w; +MOV result.color.w, c[0].y; +END +# 17 instructions, 2 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/object_hilo.arbfp1 b/src/demos/hdr/shaders/arbfp1/object_hilo.arbfp1 new file mode 100755 index 0000000..c6d5b55 --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/object_hilo.arbfp1 @@ -0,0 +1,45 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/object_hilo.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.envMap_rg : TEXUNIT0 +#semantic main.envMap_b : TEXUNIT1 +#var float4 In.HPosition : : : 0 : 0 +#var float4 In.P : : : 0 : 0 +#var float3 In.N : $vin.TEX1 : TEX1 : 0 : 1 +#var float3 In.I : $vin.TEX2 : TEX2 : 0 : 1 +#var samplerCUBE envMap_rg : TEXUNIT0 : texunit 0 : 1 : 1 +#var samplerCUBE envMap_b : TEXUNIT1 : texunit 1 : 2 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 2 1 0 5 +#const c[1] = 0.9799805 0.02000427 +PARAM c[2] = { { 2, 1, 0, 5 }, + { 0.97998047, 0.020004272 } }; +TEMP R0; +TEMP R1; +DP3 R0.y, fragment.texcoord[2], fragment.texcoord[2]; +RSQ R0.y, R0.y; +DP3 R0.x, fragment.texcoord[1], fragment.texcoord[1]; +MUL R1.xyz, R0.y, fragment.texcoord[2]; +RSQ R0.x, R0.x; +MUL R0.xyz, R0.x, fragment.texcoord[1]; +DP3 R0.w, -R1, R0; +DP3 R1.w, R0, R1; +MUL R0.xyz, R0, R1.w; +MAD R1.xyz, -R0, c[0].x, R1; +ADD R0.w, -R0, c[0].y; +MAX R0.y, R0.w, c[0].z; +TEX R0.x, R1, texture[1], CUBE; +POW R0.y, R0.y, c[0].w; +MOV R0.z, R0.x; +MAD R0.w, R0.y, c[1].x, c[1].y; +TEX R0.xy, R1, texture[0], CUBE; +MUL result.color.xyz, R0, R0.w; +MOV result.color.w, c[0].y; +END +# 19 instructions, 2 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/object_vp.arbvp1 b/src/demos/hdr/shaders/arbfp1/object_vp.arbvp1 new file mode 100755 index 0000000..1f2a6fa --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/object_vp.arbvp1 @@ -0,0 +1,42 @@ +!!ARBvp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbvp1 +# source file: ../cg/object_vp.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbvp1 +#program main +#semantic main.modelViewProj +#semantic main.model +#semantic main.eyePos +#var float4 In.Position : $vin.POSITION : POSITION : 0 : 1 +#var float4 In.Normal : $vin.NORMAL : NORMAL : 0 : 1 +#var float4x4 modelViewProj : : c[0], 4 : 1 : 1 +#var float4x4 model : : c[4], 4 : 2 : 1 +#var float3 eyePos : : c[8] : 3 : 1 +#var float4 main.HPosition : $vout.HPOS : HPOS : -1 : 1 +#var float4 main.P : $vout.TEX0 : TEX0 : -1 : 1 +#var float3 main.N : $vout.TEX1 : TEX1 : -1 : 1 +#var float3 main.I : $vout.TEX2 : TEX2 : -1 : 1 +PARAM c[9] = { program.local[0..8] }; +TEMP R0; +TEMP R1; +DP4 result.position.w, vertex.position, c[3]; +DP4 result.position.z, vertex.position, c[2]; +DP4 result.position.y, vertex.position, c[1]; +DP4 result.position.x, vertex.position, c[0]; +DP4 R0.w, vertex.position, c[7]; +DP4 R0.z, vertex.position, c[6]; +DP4 R0.y, vertex.position, c[5]; +DP3 R1.z, vertex.normal, c[6]; +DP3 R1.y, vertex.normal, c[5]; +DP3 R1.x, vertex.normal, c[4]; +DP4 R0.x, vertex.position, c[4]; +DP3 R1.w, R1, R1; +ADD result.texcoord[2].xyz, R0, -c[8]; +RSQ R1.w, R1.w; +MOV result.texcoord[0], R0; +MUL result.texcoord[1].xyz, R1.w, R1; +END +# 16 instructions, 2 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/recompile.txt b/src/demos/hdr/shaders/arbfp1/recompile.txt new file mode 100755 index 0000000..48469f3 --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/recompile.txt @@ -0,0 +1,7 @@ +cgc -profile arbfp1 -o object.arbfp1 ../cg/object.cg +cgc -profile arbfp1 -o object_hilo.arbfp1 ../cg/object_hilo.cg +cgc -profile arbvp1 -o object_vp.arbvp1 ../cg/object_vp.cg +cgc -profile arbfp1 -o shrink.arbfp1 ../cg/shrink.cg +cgc -profile arbfp1 -o skybox.arbfp1 ../cg/skybox.cg +cgc -profile arbfp1 -o skybox_hilo.arbfp1 ../cg/skybox_hilo.cg +cgc -profile arbfp1 -o tonemap.arbfp1 ../cg/tonemap.cg diff --git a/src/demos/hdr/shaders/arbfp1/shrink.arbfp1 b/src/demos/hdr/shaders/arbfp1/shrink.arbfp1 new file mode 100755 index 0000000..ddf7a4b --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/shrink.arbfp1 @@ -0,0 +1,34 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/shrink.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.sceneTex : TEXUNIT0 +#var float4 In.wpos : : : 0 : 0 +#var float3 In.tex0 : $vin.TEX0 : TEX0 : 0 : 1 +#var float3 In.tex1 : : : 0 : 0 +#var float4 In.col0 : : : 0 : 0 +#var samplerRECT sceneTex : TEXUNIT0 : texunit 0 : 1 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 1 0 0.25 +PARAM c[1] = { { 1, 0, 0.25 } }; +TEMP R0; +TEMP R1; +TEMP R2; +ADD R0.xy, fragment.texcoord[0], c[0]; +TEX R1, R0, texture[0], RECT; +TEX R0, fragment.texcoord[0], texture[0], RECT; +ADD R2, R0, R1; +ADD R0.xy, fragment.texcoord[0], c[0].yxzw; +ADD R1.xy, fragment.texcoord[0], c[0].x; +TEX R0, R0, texture[0], RECT; +TEX R1, R1, texture[0], RECT; +ADD R0, R2, R0; +ADD R0, R0, R1; +MUL result.color, R0, c[0].z; +END +# 11 instructions, 3 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/skybox.arbfp1 b/src/demos/hdr/shaders/arbfp1/skybox.arbfp1 new file mode 100755 index 0000000..8d3d9db --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/skybox.arbfp1 @@ -0,0 +1,22 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/skybox.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.envMap : TEXUNIT0 +#var float4 In.wpos : : : 0 : 0 +#var float3 In.tex0 : $vin.TEX0 : TEX0 : 0 : 1 +#var float3 In.tex1 : : : 0 : 0 +#var float4 In.col0 : : : 0 : 0 +#var samplerCUBE envMap : TEXUNIT0 : texunit 0 : 1 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 1 +PARAM c[1] = { { 1 } }; +TEX result.color.xyz, fragment.texcoord[0], texture[0], CUBE; +MOV result.color.w, c[0].x; +END +# 2 instructions, 0 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/skybox_hilo.arbfp1 b/src/demos/hdr/shaders/arbfp1/skybox_hilo.arbfp1 new file mode 100755 index 0000000..fe0d910 --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/skybox_hilo.arbfp1 @@ -0,0 +1,27 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/skybox_hilo.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.envMap_rg : TEXUNIT0 +#semantic main.envMap_b : TEXUNIT1 +#var float4 In.wpos : : : 0 : 0 +#var float3 In.tex0 : $vin.TEX0 : TEX0 : 0 : 1 +#var float3 In.tex1 : : : 0 : 0 +#var float4 In.col0 : : : 0 : 0 +#var samplerCUBE envMap_rg : TEXUNIT0 : texunit 0 : 1 : 1 +#var samplerCUBE envMap_b : TEXUNIT1 : texunit 1 : 2 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 1 +PARAM c[1] = { { 1 } }; +TEMP R0; +TEX R0.x, fragment.texcoord[0], texture[1], CUBE; +TEX result.color.xy, fragment.texcoord[0], texture[0], CUBE; +MOV result.color.z, R0.x; +MOV result.color.w, c[0].x; +END +# 4 instructions, 1 R-regs diff --git a/src/demos/hdr/shaders/arbfp1/tonemap.arbfp1 b/src/demos/hdr/shaders/arbfp1/tonemap.arbfp1 new file mode 100755 index 0000000..0dd5a5a --- /dev/null +++ b/src/demos/hdr/shaders/arbfp1/tonemap.arbfp1 @@ -0,0 +1,64 @@ +!!ARBfp1.0 +# cgc version 1.3.0001, build date Aug 4 2004 10:01:10 +# command line args: -profile arbfp1 +# source file: ../cg/tonemap.cg +# source file: ../cg/hdr.cg +#vendor NVIDIA Corporation +#version 1.0.02 +#profile arbfp1 +#program main +#semantic main.sceneTex : TEXUNIT0 +#semantic main.blurTex : TEXUNIT1 +#semantic main.gammaTex : TEXUNIT2 +#semantic main.vignetteTex : TEXUNIT3 +#semantic main.blurAmount +#semantic main.windowSize +#semantic main.exposure +#var float4 In.wpos : : : 0 : 0 +#var float3 In.tex0 : $vin.TEX0 : TEX0 : 0 : 1 +#var float3 In.tex1 : $vin.TEX1 : TEX1 : 0 : 1 +#var float4 In.col0 : : : 0 : 0 +#var samplerRECT sceneTex : TEXUNIT0 : texunit 0 : 1 : 1 +#var samplerRECT blurTex : TEXUNIT1 : texunit 1 : 2 : 1 +#var sampler1D gammaTex : TEXUNIT2 : texunit 2 : 3 : 1 +#var samplerRECT vignetteTex : TEXUNIT3 : texunit 3 : 4 : 1 +#var float blurAmount : : c[1] : 5 : 1 +#var float4 windowSize : : : 6 : 0 +#var float exposure : : c[2] : 7 : 1 +#var half4 main : $vout.COL : COL : -1 : 1 +#const c[0] = 1 0 +PARAM c[3] = { { 1, 0 }, + program.local[1..2] }; +TEMP R0; +TEMP R1; +TEMP R2; +TEMP R3; +TEMP R4; +ADD R0.xy, fragment.texcoord[1], c[0].yxzw; +ADD R1.xy, fragment.texcoord[1], c[0].x; +TEX R1.xyz, R1, texture[1], RECT; +TEX R0.xyz, R0, texture[1], RECT; +ADD R3.xyz, R1, -R0; +FRC R4.xy, fragment.texcoord[1]; +ADD R1.xy, fragment.texcoord[1], c[0]; +TEX R2.xyz, fragment.texcoord[1], texture[1], RECT; +TEX R1.xyz, R1, texture[1], RECT; +ADD R1.xyz, R1, -R2; +MAD R1.xyz, R4.x, R1, R2; +MAD R0.xyz, R4.x, R3, R0; +ADD R2.xyz, R0, -R1; +TEX R0.xyz, fragment.texcoord[0], texture[0], RECT; +MAD R1.xyz, R4.y, R2, R1; +ADD R1.xyz, R1, -R0; +MAD R1.xyz, R1, c[1].x, R0; +MUL R1.xyz, R1, c[2].x; +TEX R0.xyz, fragment.texcoord[0], texture[3], RECT; +MUL R0.xyz, R1, R0; +TEX result.color.x, R0, texture[2], 1D; +TEX R0.x, R0.y, texture[2], 1D; +TEX R1.x, R0.z, texture[2], 1D; +MOV result.color.y, R0.x; +MOV result.color.z, R1.x; +MOV result.color.w, c[0].x; +END +# 26 instructions, 5 R-regs diff --git a/src/demos/hdr/shaders/cg/hdr.cg b/src/demos/hdr/shaders/cg/hdr.cg new file mode 100755 index 0000000..3a0cafd --- /dev/null +++ b/src/demos/hdr/shaders/cg/hdr.cg @@ -0,0 +1,130 @@ +/* + 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; +} diff --git a/src/demos/hdr/shaders/cg/object.cg b/src/demos/hdr/shaders/cg/object.cg new file mode 100755 index 0000000..a242bc6 --- /dev/null +++ b/src/demos/hdr/shaders/cg/object.cg @@ -0,0 +1,30 @@ +// object shader + +#include "hdr.cg" + +struct v2f +{ + float4 HPosition : POSITION; + float4 P : TEXCOORD0; // position + float3 N : TEXCOORD1; // normal + float3 I : TEXCOORD2; // incident vector +}; + +half4 main(v2f In, + uniform samplerCUBE envMap : TEXUNIT0) : COLOR +{ + half3 I = normalize(half3(In.I)); + half3 N = normalize(half3(In.N)); + + half3 R = reflect(I, N); +// half3 T = refract(I, N, 0.9); + half fresnel = my_fresnel(-I, N, 5.0, 0.98, 0.02); + + half3 Creflect = texCUBE(envMap, R).rgb; // lookup reflection in HDR cube map +// half3 Crefract = texCUBE(envMap, T).rgb; // refraction + +// half3 Cout = lerp(Crefract, Creflect, fresnel); +// return half4(Cout, fresnel*0.5 + 0.5); + + return half4(Creflect * fresnel, 1.0); +} diff --git a/src/demos/hdr/shaders/cg/object_hilo.cg b/src/demos/hdr/shaders/cg/object_hilo.cg new file mode 100755 index 0000000..88a3348 --- /dev/null +++ b/src/demos/hdr/shaders/cg/object_hilo.cg @@ -0,0 +1,31 @@ +// object shader + +#include "hdr.cg" + +struct v2f +{ + float4 HPosition : POSITION; + float4 P : TEXCOORD0; // position + float3 N : TEXCOORD1; // normal + float3 I : TEXCOORD2; // incident vector +}; + +half4 main(v2f In, + uniform samplerCUBE envMap_rg : TEXUNIT0, + uniform samplerCUBE envMap_b : TEXUNIT1) : COLOR +{ + half3 I = normalize(half3(In.I)); + half3 N = normalize(half3(In.N)); + + half3 R = reflect(I, N); +// half3 T = refract(I, N, 0.9); + half fresnel = my_fresnel(-I, N, 5.0, 0.98, 0.02); + + half3 Creflect = texCUBE_hilo(envMap_rg, envMap_b, R).rgb; // lookup reflection in HDR cube map +// half3 Crefract = texCUBE_hilo(envMap_rg, envMap_b, T).rgb; // refraction + +// half3 Cout = lerp(Crefract, Creflect, fresnel); +// return half4(Cout, 1.0); + + return half4(Creflect * fresnel, 1.0); +} diff --git a/src/demos/hdr/shaders/cg/object_vp.cg b/src/demos/hdr/shaders/cg/object_vp.cg new file mode 100755 index 0000000..895dc28 --- /dev/null +++ b/src/demos/hdr/shaders/cg/object_vp.cg @@ -0,0 +1,43 @@ +#include "hdr.cg" + +// application to vertex shader +struct a2v +{ + float4 Position : POSITION; + float4 Normal : NORMAL; +}; + +// vertex shader to fragment shader +struct v2f +{ + float4 HPosition : POSITION; + float4 P : TEXCOORD0; // position + float3 N : TEXCOORD1; // normal + float3 I : TEXCOORD2; // incident vector +}; + +v2f main(a2v In, + uniform float4x4 modelViewProj, + uniform float4x4 model, + uniform float3 eyePos + ) +{ + v2f Out; + + // transform position + float4 P = mul(model, In.Position); + + // transform normal + float3 N = transform_dir(model, In.Normal.xyz); + N = normalize(N); + + // calculate incident vector + float3 I = P.xyz - eyePos; + + Out.P = P; + Out.N = N; + Out.I = I; + + Out.HPosition = mul(modelViewProj, In.Position); + return Out; +} diff --git a/src/demos/hdr/shaders/cg/shrink.cg b/src/demos/hdr/shaders/cg/shrink.cg new file mode 100755 index 0000000..7e01947 --- /dev/null +++ b/src/demos/hdr/shaders/cg/shrink.cg @@ -0,0 +1,17 @@ +// downsample float image by half + +#include "hdr.cg" + +half4 main(fragin In, + uniform samplerRECT sceneTex : TEXUNIT0 + ) : COLOR +{ + // should calculate texcoords in vertex shader here: + half4 c; + c = texRECT(sceneTex, In.tex0.xy); + c = c + texRECT(sceneTex, In.tex0.xy + float2(1, 0)); + c = c + texRECT(sceneTex, In.tex0.xy + float2(0, 1)); + c = c + texRECT(sceneTex, In.tex0.xy + float2(1, 1)); + c = c * 0.25; + return c; +} diff --git a/src/demos/hdr/shaders/cg/skybox.cg b/src/demos/hdr/shaders/cg/skybox.cg new file mode 100755 index 0000000..5ca6e6f --- /dev/null +++ b/src/demos/hdr/shaders/cg/skybox.cg @@ -0,0 +1,8 @@ +#include "hdr.cg" + +half4 main(fragin In, + uniform samplerCUBE envMap : TEXUNIT0) : COLOR +{ + half3 c = texCUBE(envMap, In.tex0).rgb; + return half4(c, 1.0); +} diff --git a/src/demos/hdr/shaders/cg/skybox_hilo.cg b/src/demos/hdr/shaders/cg/skybox_hilo.cg new file mode 100755 index 0000000..d7392bf --- /dev/null +++ b/src/demos/hdr/shaders/cg/skybox_hilo.cg @@ -0,0 +1,9 @@ +#include "hdr.cg" + +half4 main(fragin In, + uniform samplerCUBE envMap_rg : TEXUNIT0, + uniform samplerCUBE envMap_b : TEXUNIT1) : COLOR +{ + half3 c = texCUBE_hilo(envMap_rg, envMap_b, In.tex0).rgb; + return half4(c, 1.0); +} diff --git a/src/demos/hdr/shaders/cg/tonemap.cg b/src/demos/hdr/shaders/cg/tonemap.cg new file mode 100755 index 0000000..c3d218f --- /dev/null +++ b/src/demos/hdr/shaders/cg/tonemap.cg @@ -0,0 +1,37 @@ +// Tone mapping pass + +#include "hdr.cg" + +half4 main(fragin In, + uniform samplerRECT sceneTex : TEXUNIT0, + uniform samplerRECT blurTex : TEXUNIT1, + uniform sampler1D gammaTex : TEXUNIT2, + uniform samplerRECT vignetteTex : TEXUNIT3, + uniform float blurAmount, + uniform float4 windowSize, + uniform float exposure + ) : COLOR +{ + // sum original and blurred image + half3 c = lerp(texRECT(sceneTex, In.tex0.xy), texRECT_bilinear(blurTex, In.tex1.xy), blurAmount).xyz; + + // exposure + c = c * half(exposure); + + // vignette effect (makes brightness drop off with distance from center) +// vignette(c, In.wpos, windowSize.xy, windowSize.zw); + c = c * texRECT(vignetteTex, In.tex0.xy).rgb; + + // gamma correction +#if 0 + // use math + c = pow(c, 1.0 / 2.2); +#else + // use lut + c.r = h1tex1D(gammaTex, c.r); + c.g = h1tex1D(gammaTex, c.g); + c.b = h1tex1D(gammaTex, c.b); +#endif + + return half4(c, 1.0); +} |