continued with asset loader

default_assets/shaders/phong.frag

@@ -0,0 +1,48 @@
+#version 400
+
+out vec4 FragColor;
+
+in vec3 Position;
+in vec2 TexCoord;
+in vec3 Normal;
+
+uniform sampler2D diffuseMap;
+uniform sampler2D specularMap;
+
+uniform vec3 viewPosition;
+
+uniform vec3 phongAmbient;
+uniform vec3 phongDiffuse;
+uniform vec3 phongSpecular;
+uniform float phongShininess;
+
+uniform vec3 lightPosition;
+uniform vec3 lightDirection;
+uniform vec3 lightAmbient;
+uniform vec3 lightDiffuse;
+uniform vec3 lightSpecular;
+
+void main() {
+    vec3 diffuseColor = texture(diffuseMap, TexCoord).rgb;
+    vec3 specularColor = texture(specularMap, TexCoord).rgb;
+
+    vec3 norm = normalize(Normal);
+    vec3 lightDir = normalize(-lightDirection);
+    vec3 viewDir = normalize(viewPosition - Position);
+    vec3 halfwayDir = normalize(lightDir + viewDir);
+
+    vec3 ambient = lightAmbient * (diffuseColor * phongAmbient);
+
+    float diffImpact = max(dot(norm, lightDir), 0.0);
+    vec3 diffuse = lightDiffuse * (diffImpact * diffuseColor * phongDiffuse);
+
+    vec3 reflectDir = reflect(-lightDir, norm);
+    float effectiveShininess = max(phongShininess, 1.0);
+    float spec = pow(max(dot(norm, halfwayDir), 0.0), effectiveShininess);
+    vec3 specular = lightSpecular * (spec * specularColor * phongSpecular);
+
+    vec3 result = ambient + diffuse + specular;
+
+    float gamma = 2.2;
+    FragColor.rgb = pow(result.rgb, vec3(1.0/gamma));
+}

default_assets/shaders/phong.shader

@@ -0,0 +1,5 @@
+{
+    "name": "phong",
+    "vertex": "phong.vert",
+    "fragment": "phong.frag"
+}

default_assets/shaders/phong.vert

@@ -0,0 +1,22 @@
+#version 400
+
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec2 uv;
+layout (location = 2) in vec3 normal;
+
+out vec3 Position;
+out vec2 TexCoord;
+out vec3 Normal;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+void main() {
+    Position = vec3(model * vec4(position, 1.0));
+    Normal = mat3(transpose(inverse(model))) * normal;
+
+    TexCoord = uv;
+
+    gl_Position = projection * view * vec4(Position, 1.0);
+}