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uniform sampler2D texture;
uniform sampler2D normalTex;
varying vec2 texCoord;
varying vec4 color;
varying vec3 fragCoord;
uniform vec4 ambientLight;
uniform vec4 light[128];
uniform vec4 lightColor[128];
uniform float lightImpact;
uniform int lightSize;
float b = .0005f;
float minLight = .05f;
float radius = sqrt(1.0f / (b * minLight));
void main()
{
vec4 pixTex = texture2D(texture, vec2(texCoord.x, 1-texCoord.y));
if (pixTex.a < 0.1f)
discard;
vec4 shadeColor = vec4(0.0f, 0.0f, 0.0f, 0.0f);
for (int i = 0; i < lightSize; i++) {
vec2 loc = light[i].xy;
float dist = length(loc - fragCoord.xy);
float attenuation = clamp(1.0f - dist*dist/(radius*radius), 0.0f, 1.0f);
attenuation *= attenuation;
shadeColor += vec4(attenuation, attenuation, attenuation, 1.0f) * vec4(lightColor[i]);
}
shadeColor += ambientLight;
gl_FragColor = pixTex * color * shadeColor;
}
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