pouic long boiiiiiiii

frontend/static/js/3D/shaders.js

@@ -1,25 +1,35 @@
 const vertex_shader_source = `
 	attribute vec4 aPos;
-	attribute vec4 aColor;
+	attribute vec3 aNormal;
 
 	uniform mat4 uModView;
 	uniform mat4 uProj;
+	uniform mat4 uNormalMat;
 
-	varying lowp vec4 vColor;
+	varying highp vec3 vLighting;
 
 	void main()
 	{
 		gl_Position = uProj * uModView * aPos;
-		vColor = aColor;
+
+		highp vec3 ambientLight = vec3(0.3, 0.3, 0.3);
+		highp vec3 directionalLightColor = vec3(1, 1, 1);
+		highp vec3 directionalVector = normalize(vec3(0.85, 0.8, 0.75));
+
+		highp vec4 transformedNormal = uNormalMat * vec4(aNormal, 1.0);
+
+		highp float directional = max(dot(transformedNormal.xyz, directionalVector), 0.0);
+		vLighting = ambientLight + (directionalLightColor * directional);
 	}
 `;
 
 const fragment_shader_source = `
-	varying lowp vec4 vColor;
+	varying highp vec3 vLighting;
 
 	void main()
 	{
-		gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
+		highp vec3 color = vec3(1.0, 1.0, 1.0);
+		gl_FragColor = vec4(color * vLighting, 1.0);
 	}
 `;
 
@@ -50,7 +60,7 @@ function loadShader(gl, type, source)
 
 	if(!gl.getShaderParameter(shader, gl.COMPILE_STATUS))
 	{
-		alert(`An error occurred compiling the shaders: ${gl.getShaderInfoLog(shader)}`);
+		alert(`An error occurred while compiling the shaders: ${gl.getShaderInfoLog(shader)}`);
 		gl.deleteShader(shader);
 		return null;
 	}