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Put the color of night lighting in a uniform

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fredb 2010-03-28 17:20:04 +00:00
parent 24d8e9293c
commit 7ebe34e95c
2 changed files with 7 additions and 1 deletions
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5
Effects/urban.eff
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@ -107,6 +107,11 @@
<type>float</type>
<value type="float">2000.0</value>
</uniform>
<uniform>
<name>night_color</name>
<type>float-vec3</type>
<value type="vec3d">0.75 0.59 0.05</value>
</uniform>
</pass>
</technique>
</PropertyList>

3
Shaders/urban.frag
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@ -17,6 +17,7 @@ uniform sampler2D BaseTex;
uniform sampler2D NormalTex;
uniform float depth_factor;
uniform float tile_size;
uniform vec3 night_color;
const float zFar = 120000.0;
const float zNear = 100.0;
@ -94,7 +95,7 @@ void main (void)
float emission_factor = (1.0 - smoothstep(0.15, 0.25, reflectance)) * emis;
vec4 tc = texture2D(BaseTex, uv);
emission_factor *= 0.5*pow(tc.r+0.8*tc.g+0.2*tc.b, 2) -0.2;
ambient_light += (emission_factor * vec4(0.75, 0.59, 0.05, 0.0));
ambient_light += (emission_factor * vec4(night_color, 0.0));
vec4 finalColor = texture2D(BaseTex, uv) * ambient_light;