ebb721c7
 David Mayerich
new repository fo...
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#extension GL_EXT_gpu_shader4 : enable
varying vec3 fragment_normal;
uniform vec3 L0_pos;
uniform vec3 L1_pos;
float LightIntensity()
{
//vec3 L0_pos = vec3(1.0, 0.0, 0.0);
//vec3 L1_pos = vec3(0.0, 0.0, 1.0);
float L0 = 0.5*max(dot(fragment_normal, L0_pos), 0.0);
float L1 = 0.5*max(dot(fragment_normal, L1_pos), 0.0);
return L0 + L1;
//return 0.5;
}
void main(void)
{
//float error = (1.0 - gl_TexCoord[0].x)*(240.0/360.0);
float light = LightIntensity();
vec4 color = gl_Color;//vec4(1.0, 1.0, 1.0, 1.0);
gl_FragColor = color*light;
//assume that the error is the H component of an HSV triple
//vec4 HSV = vec4((240.0/60.0)*(1.0 - error), 1.0, 0.5, 1.0);
//vec4 RGB = HSVtoRGB(HSV);
//convert from HSL to RGB
//vec4 HSL = vec4(error, 1.0, light, 1.0);
//vec4 RGB = HSLtoRGB(HSL);
//gl_FragColor = vec4(0.5, 0.5, 0.5, 1.0);
}
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