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Water: minor shader cleanup

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This commit is contained in:
scrawl 2015-10-28 19:13:55 +01:00
parent d485dd0782
commit 51e40cf1b8
1 changed files with 5 additions and 3 deletions
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8
files/shaders/water_fragment.glsl
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@ -34,6 +34,8 @@ const float SPEC_HARDNESS = 256.0; // specular highlights hardne
const vec2 WIND_DIR = vec2(0.5f, -0.8f);
const float WIND_SPEED = 0.2f;
const vec3 WATER_COLOR = vec3(0.090195, 0.115685, 0.12745);
// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
float fresnel_dielectric(vec3 Incoming, vec3 Normal, float eta)
@ -160,6 +162,8 @@ void main(void)
vec3 R = reflect(vVec, normal);
float specular = pow(max(dot(R, lVec), 0.0),SPEC_HARDNESS) * shadow;
vec3 waterColor = WATER_COLOR;
waterColor = waterColor * length(gl_LightModel.ambient.xyz);
#if REFRACTION
float refractionDepth = texture2D(refractionDepthMap, screenCoords-(normal.xy*REFR_BUMP)).x;
// make linear
@ -168,14 +172,12 @@ void main(void)
float waterDepth = refractionDepth - depthPassthrough;
vec3 waterColor = vec3(0.090195, 0.115685, 0.12745);
waterColor = waterColor * length(gl_LightModel.ambient.xyz);
if (cameraPos.z > 0.0)
refraction = mix(refraction, waterColor, clamp(waterDepth/VISIBILITY, 0.0, 1.0));
gl_FragData[0].xyz = mix( mix(refraction, scatterColour, lightScatter), reflection, fresnel) + specular * gl_LightSource[0].specular.xyz;
#else
gl_FragData[0].xyz = mix(reflection, vec3(0.090195, 0.115685, 0.12745), (1.0-fresnel)*0.5) + specular * gl_LightSource[0].specular.xyz;
gl_FragData[0].xyz = mix(reflection, waterColor, (1.0-fresnel)*0.5) + specular * gl_LightSource[0].specular.xyz;
#endif
// fog