45 lines
1.5 KiB
Text
45 lines
1.5 KiB
Text
//Cg
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//
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//Cg profile arbvp1 arbfp1
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void vshader(float4 vtx_position : POSITION,
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out float4 l_position : POSITION,
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out float4 l_pos : TEXCOORD0,
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uniform float4x4 mat_modelproj,
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uniform float4x4 trans_model_to_clip)
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{
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l_position=mul(mat_modelproj, vtx_position);
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l_pos=mul(trans_model_to_clip, vtx_position);
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l_pos.z = l_pos.w;
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}
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void fshader(float4 l_pos: TEXCOORD0,
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float4 l_scale: TEXCOORD1,
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uniform sampler2D k_texnormal : TEXUNIT0,
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uniform sampler2D k_texalbedo : TEXUNIT1,
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uniform sampler2D k_texdepth : TEXUNIT2,
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uniform float4 texpad_texnormal,
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uniform float4 k_proj,
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uniform float4 vspos_model,
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uniform float4 k_lightcolor,
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uniform float4 row0_model_to_view,
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out float4 o_color: COLOR)
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{
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float3 screen = l_pos.xyz / l_pos.w;
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float2 texcoords = float2(screen.xy) * texpad_texnormal.xy + texpad_texnormal.xy;
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float4 albedo = tex2D(k_texalbedo, texcoords);
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float4 normal = tex2D(k_texnormal, texcoords);
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float depth = tex2D(k_texdepth, texcoords);
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float3 view = (screen.xzy * k_proj.xyz) / (depth + k_proj.w);
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float3 lightvec = float3(vspos_model) - view;
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float lightdist = length(lightvec);
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float3 lightdir = lightvec / lightdist;
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float scaledist = (lightdist / row0_model_to_view.x);
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float falloff = saturate(1.0 - scaledist);
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float brite = falloff * falloff * dot(lightdir, float3(normal));
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o_color = albedo * k_lightcolor * brite;
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o_color.a = 1;
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}
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