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Added lighting to OpenGL example.

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This commit is contained in:
David Williams 2014-05-26 17:00:26 +02:00
parent 4ae25d6b1e
commit 40e528d782
1 changed files with 15 additions and 11 deletions
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26
examples/OpenGL/main.cpp
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@ -130,34 +130,38 @@ int main(int argc, char *argv[])
void main()
{
//vec3 normal = normalize(cross(dFdy(worldPosition.xyz), dFdx(worldPosition.xyz)));
vec3 normal = worldNormal.xyz;
vec4 surfaceColor = vec4(0.0, 0.0, 0.0, 0.0);
switch(outMaterial.x)
{
case 1:
outputColor = vec4(1.0, 0.0, 0.0, 1.0);
surfaceColor = vec4(1.0, 0.0, 0.0, 1.0);
break;
case 2:
outputColor = vec4(0.0, 1.0, 0.0, 1.0);
surfaceColor = vec4(0.0, 1.0, 0.0, 1.0);
break;
case 3:
outputColor = vec4(0.0, 0.0, 1.0, 1.0);
surfaceColor = vec4(0.0, 0.0, 1.0, 1.0);
break;
case 4:
outputColor = vec4(1.0, 1.0, 0.0, 1.0);
surfaceColor = vec4(1.0, 1.0, 0.0, 1.0);
break;
case 5:
outputColor = vec4(1.0, 0.0, 1.0, 1.0);
surfaceColor = vec4(1.0, 0.0, 1.0, 1.0);
break;
default:
outputColor = vec4(1.0, 1.0, 1.0, 1.0);
surfaceColor = vec4(1.0, 1.0, 1.0, 1.0);
break;
}
//float color = clamp(abs(dot(normalize(normal.xyz), vec3(0.9,0.1,0.5))), 0, 1);
//outputColor = vec4(1.0, 0.5, color, 1.0);
vec3 lightDir = vec3(1.0, 0.0, 0.0);
float diffuse = dot(lightDir, normal);
diffuse *= 0.6;
float ambient = 0.4;
float lightVal = diffuse + ambient;
outputColor = surfaceColor * lightVal;
}
)"))
{