feat: thong ?
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22d1218690
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@ -20,13 +20,14 @@ public class Fragment {
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* 1-3: color
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* 4-6: normal
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* 7-8: (u,v) texture coordinates
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* 9-11: unprojected vertice un 3D space
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*/
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double[] attributes;
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public Fragment(int x, int y) { // int numAdditionalAttributes) {
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this.x = x;
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this.y = y;
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numAttributes = 9;
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numAttributes = 12;
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attributes = new double[numAttributes];
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}
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@ -136,4 +137,14 @@ public class Fragment {
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public String toString() {
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return "(" + x + "," + y + ")";
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}
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public void setVertice(Vector vector) {
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attributes[9] = vector.get(0);
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attributes[10] = vector.get(1);
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attributes[11] = vector.get(2);
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}
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public Vector3 getVertice() {
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return new Vector3(attributes[9], attributes[10], attributes[11]);
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}
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}
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@ -204,25 +204,23 @@ public class Rasterizer {
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*/
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public void rasterizeFace(Fragment v1, Fragment v2, Fragment v3) {
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// calcul de la matrice barycentrique
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Matrix C = makeBarycentricCoordsMatrix(v1, v2, v3);
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/* iterate over the triangle's bounding box */
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// calcul de la bounding box
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int x_hg = min3(v1.getX(), v2.getX(), v3.getX());
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int y_hg = min3(v1.getY(), v2.getY(), v3.getY());
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int x_bd = max3(v1.getX(), v2.getX(), v3.getX());
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int y_bd = max3(v1.getY(), v2.getY(), v3.getY());
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// parcours des pixels à l'intérieur de la bounding box
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for (int px = x_hg; px < x_bd; px++) {
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boucle: for (int py = y_hg; py < y_bd; py++) {
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// System.out.println(px);
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// System.out.println(py);
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// System.out.println();
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Vector3 point = new Vector3(1, px, py);
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Vector barycentre = null;
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try {
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// calcul du barycentre du triangle
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barycentre = C.multiply(point);
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} catch (SizeMismatchException e) {
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e.printStackTrace();
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@ -232,28 +230,40 @@ public class Rasterizer {
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// si une des coordonnées barycentrique est négative,
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// le pixel n'est pas dans le triangle
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if (barycentre.get(i) < -1e-3) {
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// on passe au pixel suivant
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// alors, on passe au pixel suivant
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continue boucle;
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}
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}
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// System.out.println(barycentre);
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// Sinon, le pixel est dans le triangle
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// Le pixel est dans le triangle
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// On créé un fragment
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Fragment couleur = new Fragment(px, py);
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Fragment fragment = new Fragment(px, py);
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// on interpole la couleur
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for (int i = 0; i < couleur.getNumAttributes(); i++) {
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// on interpole ses attributs: couleur, normale, depth...
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for (int i = 0; i < fragment.getNumAttributes(); i++) {
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double pondere = 0;
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pondere += v1.getAttribute(i) * barycentre.get(0);
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pondere += v2.getAttribute(i) * barycentre.get(1);
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pondere += v3.getAttribute(i) * barycentre.get(2);
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couleur.setAttribute(i, pondere);
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fragment.setAttribute(i, pondere);
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}
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if (Renderer.Thong) {
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double[] material = Renderer.scene.getMaterial();
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Vector3 cameraPosition = Renderer.scene.getCameraPosition();
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Lighting lighting = Renderer.lighting;
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// on calcule la couleur illuminée
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double[] litColor = lighting.applyLights(fragment.getVertice(), fragment.getNormal(),
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fragment.getColor(), cameraPosition, material[0], material[1], material[2], material[3]);
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// on applique la couleur au fragment
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fragment.setColor(litColor[0] / 255, litColor[1] / 255, litColor[2] / 255);
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}
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// on affiche le pixel
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shader.shade(couleur);
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shader.shade(fragment);
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}
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}
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@ -17,6 +17,7 @@ public class Renderer {
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static Transformation xform;
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static Lighting lighting;
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static boolean lightingEnabled;
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static boolean Thong;
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static void init(String sceneFilename) throws Exception {
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scene = new Scene(sceneFilename);
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@ -48,32 +49,37 @@ public class Renderer {
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try {
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for (int i = 0; i < vertices.length; i++) {
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Vector pVertex = xform.projectPoint(vertices[i]);
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// Vector pNormal = xform.transformVector (normals[i]);
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Vector3 pNormal = normals[i];
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int x = (int) Math.round(pVertex.get(0));
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int y = (int) Math.round(pVertex.get(1));
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fragments[i] = new Fragment(x, y);
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fragments[i].setDepth(pVertex.get(2));
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fragments[i].setNormal(pNormal);
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fragments[i].setVertice(vertices[i]);
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double[] texCoords = mesh.getTextureCoordinates();
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if (texCoords != null) {
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fragments[i].setAttribute(7, texCoords[2 * i]);
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fragments[i].setAttribute(8, texCoords[2 * i + 1]);
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}
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if (!lightingEnabled) {
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if (!lightingEnabled || Thong) {
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fragments[i].setColor(colors[3 * i], colors[3 * i + 1], colors[3 * i + 2]);
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} else {
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} else if (lightingEnabled && !Thong) {
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double[] color = new double[3];
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color[0] = colors[3 * i];
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color[1] = colors[3 * i + 1];
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color[2] = colors[3 * i + 2];
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double material[] = scene.getMaterial();
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double[] litColor = lighting.applyLights(new Vector3(vertices[i]), pNormal, color,
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scene.getCameraPosition(),
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material[0], material[1], material[2], material[3]);
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scene.getCameraPosition(), material[0], material[1], material[2], material[3]);
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fragments[i].setColor(litColor[0], litColor[1], litColor[2]);
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}
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}
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@ -133,6 +139,10 @@ public class Renderer {
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lightingEnabled = enabled;
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}
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private static void setThongEnabled(boolean b) {
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Thong = b;
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}
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public static void wait(int sec) {
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try {
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Thread.sleep(sec * 1000);
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@ -156,20 +166,20 @@ public class Renderer {
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}
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/* vertice rendering */
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renderVertices();
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wait(1);
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// renderVertices();
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// wait(1);
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/* wireframe rendering */
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renderWireframe();
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wait(1);
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// renderWireframe();
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// wait(1);
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/* solid rendering, no lighting */
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shader = new SimpleShader(screen);
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rasterizer = new Rasterizer(shader);
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screen.clearBuffer();
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shader.reset();
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renderSolid();
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wait(1);
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// shader = new SimpleShader(screen);
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// rasterizer = new Rasterizer(shader);
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// screen.clearBuffer();
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// shader.reset();
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// renderSolid();
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// wait(1);
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/* solid rendering, no lighting */
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shader = new PainterShader(screen);
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@ -177,7 +187,7 @@ public class Renderer {
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screen.clearBuffer();
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shader.reset();
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renderSolid();
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wait(1);
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wait(3);
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/* solid rendering, with lighting */
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screen.clearBuffer();
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@ -186,6 +196,17 @@ public class Renderer {
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renderSolid();
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wait(1);
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/* solid rendering, with lighting Thong */
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screen.clearBuffer();
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shader.reset();
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setThongEnabled(true);
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setLightingEnabled(true);
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renderSolid();
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wait(3);
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screen.destroy();
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System.exit(0);
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/* création du texture shader */
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TextureShader texShader = new TextureShader(screen);
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texShader.setTexture("data/brick.jpg");
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@ -210,7 +231,7 @@ public class Renderer {
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wait(1);
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// on attend un peu avant de fermer la fenêtre
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wait(60);
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wait(10);
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screen.destroy();
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System.exit(0);
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}
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