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added fog

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This commit is contained in:
scrawl 2012-04-03 22:04:37 +02:00
parent cc4076d42a
commit 2fa9bac517
2 changed files with 9 additions and 1 deletions
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8
files/water/water.cg
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@ -6,6 +6,7 @@ void main_vp
, out float4 oPos : POSITION
, out float3 oScreenCoords : TEXCOORD0
, out float2 oUv : TEXCOORD1
, out float oDepth : TEXCOORD2
, uniform float4x4 wvpMat
)
@ -13,6 +14,7 @@ void main_vp
oPos = mul(wvpMat, iPos);
oUv = iUv * 10; // uv scale
oDepth = oPos.z;
float4x4 scalemat = float4x4( 0.5, 0, 0, 0.5,
0, -0.5, 0, 0.5,
@ -28,11 +30,14 @@ void main_fp
, in float3 iScreenCoords : TEXCOORD0
, in float2 iUv : TEXCOORD1
, in float iDepth : TEXCOORD2
, uniform float renderTargetFlipping
, uniform sampler2D reflectionMap : register(s0)
, uniform sampler2D normalMap : register(s1)
, uniform float time
, uniform float4 fogParams
, uniform float4 fogColour
)
{
@ -51,6 +56,7 @@ void main_fp
float4 reflection = tex2D(reflectionMap, screenCoords);
oColor.xyz = reflection.xyz;
float fogValue = saturate((iDepth - fogParams.y) * fogParams.w);
oColor.xyz = lerp(reflection.xyz, fogColour, fogValue);
oColor.a = 0.45;
}

2
files/water/water.material
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@ -52,6 +52,8 @@ material Water
fragment_program_ref Water_FP
{
param_named_auto time time 0.1
param_named_auto fogColour fog_colour
param_named_auto fogParams fog_params
}
texture_unit reflectionMap