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feat: map diffuse lighting to gradient

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Cat Flynn 2023-08-03 10:39:46 +02:00 committed by ktyl
parent 2384028542
commit 82ab3b2920
1 changed files with 6 additions and 5 deletions
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11
frag_lit.glsl
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@ -7,21 +7,22 @@ out vec4 FragColor;
void main() void main()
{ {
vec3 objectColor = vec3(1.0, 0.5, 0.2); vec3 objectColor = vec3(1.0, 1.0, 1.0);
vec3 result; vec3 result;
// Ambient lighting // Ambient lighting
vec3 ambientLightColor = vec3(1.0, 1.0, 1.0); vec3 ambientLightColor = vec3(1.0, 1.0, 1.0);
float ambientStrength = 0.1; float ambientStrength = 0.0;
vec3 ambient = ambientStrength * ambientLightColor; vec3 ambient = ambientStrength * ambientLightColor;
// Directional lighting // Directional lighting
vec3 directionalLightColor = vec3(1.0, 1.0, 1.0); vec3 dirColorHi = vec3(.39, .40, .21) * 2.0;
vec3 dirColorLo = vec3(.45, .22, .33) * 2.0;
vec3 lightPos = vec3(10.0, 7.0, -8.0); vec3 lightPos = vec3(10.0, 7.0, -8.0);
vec3 normal = normalize(Normal); vec3 normal = normalize(Normal);
vec3 lightDir = normalize(lightPos - FragPos); vec3 lightDir = normalize(lightPos - FragPos);
float diff = max(dot(normal, lightDir), 0.0); float diff = dot(normal, lightDir) * .5 + .5;
vec3 diffuse = diff * directionalLightColor; vec3 diffuse = mix(dirColorLo, dirColorHi, diff);
result = (ambient + diffuse) * objectColor; result = (ambient + diffuse) * objectColor;