egg

src/shaders/DefaultCubemapNormalMaterial.hx

@@ -0,0 +1,98 @@
+package shaders;
+
+class DefaultCubemapNormalMaterial extends hxsl.Shader {
+	static var SRC = {
+		@param var diffuseMap:Sampler2D;
+		@param var specularColor:Vec4;
+		@param var shininess:Float;
+		@param var secondaryMapUvFactor:Float;
+		@param var cubeMap:SamplerCube;
+		@global var camera:{
+			var position:Vec3;
+			@var var dir:Vec3;
+		};
+		@global var global:{
+			@perObject var modelView:Mat4;
+			@perObject var modelViewInverse:Mat4;
+		};
+		@input var input:{
+			var position:Vec3;
+			var normal:Vec3;
+			var uv:Vec2;
+			var t:Vec3;
+			var b:Vec3;
+			var n:Vec3;
+		};
+		var calculatedUV:Vec2;
+		var pixelColor:Vec4;
+		var specColor:Vec3;
+		var specPower:Float;
+		@const var doGammaRamp:Bool;
+		@var var outShading:Vec4;
+		@var var outLightVec:Vec4;
+		@var var outEyePos:Vec3;
+		@var var outReflectVec:Vec3;
+		function lambert(normal:Vec3, lightPosition:Vec3):Float {
+			var result = dot(normal, lightPosition);
+			return saturate(result);
+		}
+		function vertex() {
+			calculatedUV = input.uv;
+			outLightVec = vec4(0);
+			var inLightVec = vec3(-0.5732, 0.27536, -0.77176) * mat3(global.modelViewInverse);
+			var eyePos = camera.position * mat3x4(global.modelViewInverse);
+			// eyePos /= vec3(global.modelViewInverse[0].x, global.modelViewInverse[1].y, global.modelViewInverse[2].z);
+			outLightVec.xyz = -inLightVec;
+			outLightVec.w = step(-0.5, dot(input.normal, -inLightVec));
+			outEyePos = eyePos;
+			outShading = vec4(saturate(dot(-inLightVec, input.normal)));
+			outShading.w = 1;
+			outShading *= vec4(1.08, 1.03, 0.90, 1);
+
+			var cubeTrans = mat3(global.modelView);
+			var cubeEyePos = camera.position - global.modelView[3].xyz;
+
+			var cubeVertPos = input.position * cubeTrans;
+			var cubeNormal = (input.normal * cubeTrans).normalize();
+			var eyeToVert = cubeVertPos - cubeEyePos;
+			outReflectVec = reflect(eyeToVert, cubeNormal);
+		}
+		function fragment() {
+			// Diffuse part
+			var diffuse = diffuseMap.get(calculatedUV);
+			var ambient = vec4(0.472, 0.424, 0.475, 1.00);
+
+			var outCol = (outShading + ambient) * diffuse;
+			outCol += diffuse.a * cubeMap.get(outReflectVec);
+
+			var eyeVec = (outEyePos - input.position).normalize();
+			var halfAng = (eyeVec + outLightVec.xyz).normalize();
+			var specValue = saturate(input.normal.dot(halfAng)) * outLightVec.w;
+			var specular = specularColor * pow(specValue, shininess);
+
+			outCol.a = 1;
+			outCol += specular * diffuse.a;
+
+			// Gamma correction using our regression model
+			if (doGammaRamp) {
+				var a = 1.00759;
+				var b = 1.18764;
+				outCol.x = a * pow(outCol.x, b);
+				outCol.y = a * pow(outCol.y, b);
+				outCol.z = a * pow(outCol.z, b);
+			}
+
+			pixelColor = outCol;
+		}
+	}
+
+	public function new(diffuse, cubeMap, shininess, specularColor, secondaryMapUvFactor) {
+		super();
+		this.diffuseMap = diffuse;
+		this.cubeMap = cubeMap;
+		this.shininess = shininess;
+		this.specularColor = specularColor;
+		this.secondaryMapUvFactor = secondaryMapUvFactor;
+		this.doGammaRamp = true;
+	}
+}

src/shapes/EasterEgg.hx

@@ -41,4 +41,30 @@ class EasterEgg extends PowerUp {
 	}
 
 	public function use(timeState:src.TimeState) {}
+
+	override function postProcessMaterial(matName:String, material:h3d.mat.Material) {
+		if (matName == "egg_skin") {
+			var diffuseTex = ResourceLoader.getTexture("data/shapes/items/egg_skin.png").resource;
+			diffuseTex.wrap = Repeat;
+			diffuseTex.mipMap = Nearest;
+
+			var cubemapTex = new h3d.mat.Texture(64, 64, [Cube]);
+			var cubemapFace = ResourceLoader.getImage('data/skies/gemCubemapUp.png').resource;
+			for (i in 0...6) {
+				cubemapTex.uploadPixels(cubemapFace.getPixels(), 0, i);
+			}
+
+			var shader = new shaders.DefaultCubemapNormalMaterial(diffuseTex, cubemapTex, 32, new h3d.Vector(1, 1, 1, 1), 1);
+			shader.doGammaRamp = false;
+			var dtsTex = material.mainPass.getShader(shaders.DtsTexture);
+			dtsTex.passThrough = true;
+			material.mainPass.removeShader(material.textureShader);
+			material.mainPass.addShader(shader);
+			var thisprops:Dynamic = material.getDefaultProps();
+			thisprops.light = false; // We will calculate our own lighting
+			material.props = thisprops;
+			material.shadows = false;
+			material.receiveShadows = true;
+		}
+	}
 }