mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-21 01:36:02 +08:00
[libgdx] Added software clipping to SkeletonRenderer. Requires a polygon sprite batch and convex clipping attachment.
This commit is contained in:
badlogic
parent
c73971eb4c
commit
af3b5655fc
@ -32,17 +32,18 @@ package com.esotericsoftware.spine;
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import com.badlogic.gdx.ApplicationAdapter;
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import com.badlogic.gdx.Gdx;
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import com.badlogic.gdx.Input.Keys;
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import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
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import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
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import com.badlogic.gdx.graphics.GL20;
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import com.badlogic.gdx.graphics.OrthographicCamera;
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import com.badlogic.gdx.graphics.g2d.SpriteBatch;
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import com.badlogic.gdx.graphics.g2d.TextureAtlas;
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import com.esotericsoftware.spine.attachments.ClippingAttachment;
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import com.esotericsoftware.spine.utils.TwoColorPolygonBatch;
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public class ClippingTest extends ApplicationAdapter {
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OrthographicCamera camera;
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SpriteBatch batch;
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TwoColorPolygonBatch batch;
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SkeletonRenderer renderer;
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SkeletonRendererDebug debugRenderer;
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@ -52,9 +53,10 @@ public class ClippingTest extends ApplicationAdapter {
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public void create () {
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camera = new OrthographicCamera();
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batch = new SpriteBatch();
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batch = new TwoColorPolygonBatch(2048);
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renderer = new SkeletonRenderer();
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renderer.setPremultipliedAlpha(true);
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renderer.setSoftwareClipping(true);
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debugRenderer = new SkeletonRendererDebug();
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debugRenderer.setBoundingBoxes(false);
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debugRenderer.setRegionAttachments(false);
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@ -81,19 +83,19 @@ public class ClippingTest extends ApplicationAdapter {
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// Create a clipping attachment, slot data, and slot.
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ClippingAttachment clip = new ClippingAttachment("clip");
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// Rectangle:
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// clip.setVertices(new float[] { //
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// -140, -50, //
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// 120, -50, //
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// 120, 50, //
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// -140, 50, //
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// });
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// Self intersection:
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clip.setVertices(new float[] { //
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-140, -50, //
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120, 50, //
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120, -50, //
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120, 50, //
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-140, 50, //
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});
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// Self intersection:
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// clip.setVertices(new float[] { //
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// -140, -50, //
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// 120, 50, //
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// 120, -50, //
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// -140, 50, //
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// });
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clip.setWorldVerticesLength(8);
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clip.setEnd(skeleton.findSlot("muzzle"));
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@ -109,6 +111,7 @@ public class ClippingTest extends ApplicationAdapter {
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public void render () {
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state.update(Gdx.graphics.getDeltaTime() * 0.3f);
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Gdx.gl.glClearColor(0.3f, 0.3f, 0.3f, 1);
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Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
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state.apply(skeleton);
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@ -123,6 +126,11 @@ public class ClippingTest extends ApplicationAdapter {
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batch.end();
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debugRenderer.draw(skeleton);
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if (Gdx.input.isKeyJustPressed(Keys.S)) {
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renderer.setSoftwareClipping(!renderer.getSoftwareClipping());
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System.out.println("Software clipping: " + renderer.getSoftwareClipping());
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}
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}
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public void resize (int width, int height) {
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@ -1,8 +1,6 @@
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package com.esotericsoftware.spine;
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import javax.management.BadBinaryOpValueExpException;
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import org.lwjgl.opengl.GL11;
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import com.badlogic.gdx.ApplicationAdapter;
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@ -42,24 +42,34 @@ import com.badlogic.gdx.math.Matrix4;
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import com.badlogic.gdx.utils.Array;
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import com.badlogic.gdx.utils.FloatArray;
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import com.badlogic.gdx.utils.NumberUtils;
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import com.badlogic.gdx.utils.ShortArray;
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import com.esotericsoftware.spine.attachments.Attachment;
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import com.esotericsoftware.spine.attachments.ClippingAttachment;
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import com.esotericsoftware.spine.attachments.MeshAttachment;
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import com.esotericsoftware.spine.attachments.RegionAttachment;
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import com.esotericsoftware.spine.attachments.SkeletonAttachment;
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import com.esotericsoftware.spine.utils.SutherlandHodgmanClipper;
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import com.esotericsoftware.spine.utils.TwoColorPolygonBatch;
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public class SkeletonRenderer {
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static private final short[] quadTriangles = {0, 1, 2, 2, 3, 0};
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static private final short[] quadTriangles = { 0, 1, 2, 2, 3, 0 };
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private boolean softwareClipping;
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private boolean premultipliedAlpha;
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private final FloatArray vertices = new FloatArray(32);
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private SutherlandHodgmanClipper clipper = new SutherlandHodgmanClipper();
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private ClippingAttachment clipAttachment;
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private Slot clipEnd;
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private FloatArray clippingArea = new FloatArray();
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private float[] clipInput = new float[6];
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private FloatArray clipOutput = new FloatArray(400);
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private FloatArray clippedVertices = new FloatArray(400);
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private ShortArray clippedTriangles = new ShortArray(400);
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private final Matrix4 combinedMatrix = new Matrix4();
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private ImmediateModeRenderer renderer; // BOZO! - Dispose.
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public void draw (Batch batch, Skeleton skeleton) {
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public void draw(Batch batch, Skeleton skeleton) {
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boolean premultipliedAlpha = this.premultipliedAlpha;
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float[] vertices = this.vertices.items;
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Color skeletonColor = skeleton.color;
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@ -69,14 +79,14 @@ public class SkeletonRenderer {
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Slot slot = drawOrder.get(i);
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Attachment attachment = slot.attachment;
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if (attachment instanceof RegionAttachment) {
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RegionAttachment region = (RegionAttachment)attachment;
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RegionAttachment region = (RegionAttachment) attachment;
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region.computeWorldVertices(slot.getBone(), vertices, 0, 5);
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Color color = region.getColor(), slotColor = slot.getColor();
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float alpha = a * slotColor.a * color.a * 255;
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float c = NumberUtils.intToFloatColor(((int)alpha << 24) //
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| ((int)(b * slotColor.b * color.b * alpha) << 16) //
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| ((int)(g * slotColor.g * color.g * alpha) << 8) //
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| (int)(r * slotColor.r * color.r * alpha));
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float c = NumberUtils.intToFloatColor(((int) alpha << 24) //
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| ((int) (b * slotColor.b * color.b * alpha) << 16) //
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| ((int) (g * slotColor.g * color.g * alpha) << 8) //
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| (int) (r * slotColor.r * color.r * alpha));
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float[] uvs = region.getUVs();
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for (int u = 0, v = 2; u < 8; u += 2, v += 5) {
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vertices[v] = c;
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@ -89,7 +99,7 @@ public class SkeletonRenderer {
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batch.draw(region.getRegion().getTexture(), vertices, 0, 20);
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} else if (attachment instanceof ClippingAttachment) {
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ClippingAttachment clip = (ClippingAttachment)attachment;
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ClippingAttachment clip = (ClippingAttachment) attachment;
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batch.end();
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clipStart(batch.getProjectionMatrix(), batch.getTransformMatrix(), slot, clip);
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batch.begin();
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@ -99,7 +109,7 @@ public class SkeletonRenderer {
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throw new RuntimeException("SkeletonMeshRenderer is required to render meshes.");
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} else if (attachment instanceof SkeletonAttachment) {
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Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
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Skeleton attachmentSkeleton = ((SkeletonAttachment) attachment).getSkeleton();
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if (attachmentSkeleton != null) {
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Bone bone = slot.getBone();
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Bone rootBone = attachmentSkeleton.getRootBone();
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@ -107,8 +117,10 @@ public class SkeletonRenderer {
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float oldScaleY = rootBone.getScaleY();
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float oldRotation = rootBone.getRotation();
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attachmentSkeleton.setPosition(bone.getWorldX(), bone.getWorldY());
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// rootBone.setScaleX(1 + bone.getWorldScaleX() - oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() - oldScaleY);
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// rootBone.setScaleX(1 + bone.getWorldScaleX() -
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// oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() -
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// oldScaleY);
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// Set shear.
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rootBone.setRotation(oldRotation + bone.getWorldRotationX());
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attachmentSkeleton.updateWorldTransform();
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@ -131,7 +143,7 @@ public class SkeletonRenderer {
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}
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@SuppressWarnings("null")
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public void draw (PolygonSpriteBatch batch, Skeleton skeleton) {
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public void draw(PolygonSpriteBatch batch, Skeleton skeleton) {
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boolean premultipliedAlpha = this.premultipliedAlpha;
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BlendMode blendMode = null;
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int verticesLength = 0;
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@ -145,7 +157,7 @@ public class SkeletonRenderer {
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Slot slot = drawOrder.get(i);
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Attachment attachment = slot.attachment;
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if (attachment instanceof RegionAttachment) {
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RegionAttachment region = (RegionAttachment)attachment;
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RegionAttachment region = (RegionAttachment) attachment;
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verticesLength = 20;
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vertices = this.vertices.items;
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region.computeWorldVertices(slot.getBone(), vertices, 0, 5);
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@ -155,7 +167,7 @@ public class SkeletonRenderer {
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color = region.getColor();
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} else if (attachment instanceof MeshAttachment) {
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MeshAttachment mesh = (MeshAttachment)attachment;
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MeshAttachment mesh = (MeshAttachment) attachment;
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int count = mesh.getWorldVerticesLength();
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verticesLength = (count >> 1) * 5;
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vertices = this.vertices.setSize(verticesLength);
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@ -166,14 +178,14 @@ public class SkeletonRenderer {
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color = mesh.getColor();
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} else if (attachment instanceof ClippingAttachment) {
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ClippingAttachment clip = (ClippingAttachment)attachment;
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ClippingAttachment clip = (ClippingAttachment) attachment;
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batch.end();
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clipStart(batch.getProjectionMatrix(), batch.getTransformMatrix(), slot, clip);
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batch.begin();
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continue;
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} else if (attachment instanceof SkeletonAttachment) {
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Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
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Skeleton attachmentSkeleton = ((SkeletonAttachment) attachment).getSkeleton();
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if (attachmentSkeleton != null) {
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Bone bone = slot.getBone();
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Bone rootBone = attachmentSkeleton.getRootBone();
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@ -181,8 +193,10 @@ public class SkeletonRenderer {
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float oldScaleY = rootBone.getScaleY();
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float oldRotation = rootBone.getRotation();
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attachmentSkeleton.setPosition(bone.getWorldX(), bone.getWorldY());
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// rootBone.setScaleX(1 + bone.getWorldScaleX() - oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() - oldScaleY);
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// rootBone.setScaleX(1 + bone.getWorldScaleX() -
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// oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() -
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// oldScaleY);
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// Also set shear.
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rootBone.setRotation(oldRotation + bone.getWorldRotationX());
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attachmentSkeleton.updateWorldTransform();
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@ -199,10 +213,10 @@ public class SkeletonRenderer {
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if (texture != null) {
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Color slotColor = slot.getColor();
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float alpha = a * slotColor.a * color.a * 255;
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float c = NumberUtils.intToFloatColor(((int)alpha << 24) //
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| ((int)(b * slotColor.b * color.b * alpha) << 16) //
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| ((int)(g * slotColor.g * color.g * alpha) << 8) //
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| (int)(r * slotColor.r * color.r * alpha));
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float c = NumberUtils.intToFloatColor(((int) alpha << 24) //
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| ((int) (b * slotColor.b * color.b * alpha) << 16) //
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| ((int) (g * slotColor.g * color.g * alpha) << 8) //
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| (int) (r * slotColor.r * color.r * alpha));
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for (int v = 2, u = 0; v < verticesLength; v += 5, u += 2) {
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vertices[v] = c;
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vertices[v + 1] = uvs[u];
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@ -214,18 +228,27 @@ public class SkeletonRenderer {
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blendMode = slotBlendMode;
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batch.setBlendFunction(blendMode.getSource(premultipliedAlpha), blendMode.getDest());
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}
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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if (softwareClipping) {
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if (clipAttachment != null) {
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clipSoftware(vertices, 0, verticesLength, triangles, 0, triangles.length, clippedVertices, clippedTriangles, 0, c, false);
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batch.draw(texture, clippedVertices.items, 0, clippedVertices.size, clippedTriangles.items, 0, clippedTriangles.size);
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} else {
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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}
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} else {
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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}
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}
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if (slot == clipEnd) {
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batch.flush();
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if (!softwareClipping) batch.flush();
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clipEnd();
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}
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}
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}
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@SuppressWarnings("null")
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public void draw (TwoColorPolygonBatch batch, Skeleton skeleton) {
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public void draw(TwoColorPolygonBatch batch, Skeleton skeleton) {
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boolean premultipliedAlpha = this.premultipliedAlpha;
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BlendMode blendMode = null;
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int verticesLength = 0;
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@ -239,7 +262,7 @@ public class SkeletonRenderer {
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Slot slot = drawOrder.get(i);
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Attachment attachment = slot.attachment;
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if (attachment instanceof RegionAttachment) {
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RegionAttachment region = (RegionAttachment)attachment;
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RegionAttachment region = (RegionAttachment) attachment;
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verticesLength = 24;
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vertices = this.vertices.items;
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region.computeWorldVertices(slot.getBone(), vertices, 0, 6);
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@ -249,7 +272,7 @@ public class SkeletonRenderer {
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color = region.getColor();
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} else if (attachment instanceof MeshAttachment) {
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MeshAttachment mesh = (MeshAttachment)attachment;
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MeshAttachment mesh = (MeshAttachment) attachment;
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int count = mesh.getWorldVerticesLength();
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verticesLength = count * 3;
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vertices = this.vertices.setSize(verticesLength);
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@ -260,14 +283,14 @@ public class SkeletonRenderer {
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color = mesh.getColor();
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} else if (attachment instanceof ClippingAttachment) {
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ClippingAttachment clip = (ClippingAttachment)attachment;
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ClippingAttachment clip = (ClippingAttachment) attachment;
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batch.end();
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clipStart(batch.getProjectionMatrix(), batch.getTransformMatrix(), slot, clip);
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batch.begin();
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continue;
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} else if (attachment instanceof SkeletonAttachment) {
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Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
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Skeleton attachmentSkeleton = ((SkeletonAttachment) attachment).getSkeleton();
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if (attachmentSkeleton != null) {
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Bone bone = slot.getBone();
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Bone rootBone = attachmentSkeleton.getRootBone();
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@ -275,8 +298,10 @@ public class SkeletonRenderer {
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float oldScaleY = rootBone.getScaleY();
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float oldRotation = rootBone.getRotation();
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attachmentSkeleton.setPosition(bone.getWorldX(), bone.getWorldY());
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// rootBone.setScaleX(1 + bone.getWorldScaleX() - oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() - oldScaleY);
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// rootBone.setScaleX(1 + bone.getWorldScaleX() -
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// oldScaleX);
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// rootBone.setScaleY(1 + bone.getWorldScaleY() -
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// oldScaleY);
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// Also set shear.
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rootBone.setRotation(oldRotation + bone.getWorldRotationX());
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attachmentSkeleton.updateWorldTransform();
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@ -293,16 +318,17 @@ public class SkeletonRenderer {
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if (texture != null) {
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Color lightColor = slot.getColor();
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float alpha = a * lightColor.a * color.a * 255;
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float light = NumberUtils.intToFloatColor(((int)alpha << 24) //
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| ((int)(b * lightColor.b * color.b * alpha) << 16) //
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| ((int)(g * lightColor.g * color.g * alpha) << 8) //
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| (int)(r * lightColor.r * color.r * alpha));
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float light = NumberUtils.intToFloatColor(((int) alpha << 24) //
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| ((int) (b * lightColor.b * color.b * alpha) << 16) //
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| ((int) (g * lightColor.g * color.g * alpha) << 8) //
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| (int) (r * lightColor.r * color.r * alpha));
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Color darkColor = slot.getDarkColor();
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if (darkColor == null) darkColor = Color.BLACK;
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if (darkColor == null)
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darkColor = Color.BLACK;
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float dark = NumberUtils.intToFloatColor( //
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((int)(b * darkColor.b * color.b * 255) << 16) //
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| ((int)(g * darkColor.g * color.g * 255) << 8) //
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| (int)(r * darkColor.r * color.r * 255));
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((int) (b * darkColor.b * color.b * 255) << 16) //
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| ((int) (g * darkColor.g * color.g * 255) << 8) //
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| (int) (r * darkColor.r * color.r * 255));
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for (int v = 2, u = 0; v < verticesLength; v += 6, u += 2) {
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vertices[v] = light;
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vertices[v + 1] = dark;
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@ -315,50 +341,172 @@ public class SkeletonRenderer {
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blendMode = slotBlendMode;
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batch.setBlendFunction(blendMode.getSource(premultipliedAlpha), blendMode.getDest());
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}
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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if (softwareClipping) {
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if (clipAttachment != null) {
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clipSoftware(vertices, 0, verticesLength, triangles, 0, triangles.length, clippedVertices, clippedTriangles, dark, light, true);
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batch.draw(texture, clippedVertices.items, 0, clippedVertices.size, clippedTriangles.items, 0, clippedTriangles.size);
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} else {
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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}
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} else {
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batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
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}
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}
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if (slot == clipEnd) {
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batch.flush();
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if (!softwareClipping) batch.flush();
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clipEnd();
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}
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}
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}
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private void clipStart (Matrix4 transformMatrix, Matrix4 projectionMatrix, Slot slot, ClippingAttachment clip) {
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private void clipStart(Matrix4 transformMatrix, Matrix4 projectionMatrix, Slot slot, ClippingAttachment clip) {
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if (clipEnd != null) return;
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clipAttachment = clip;
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clipEnd = clip.getEnd();
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int n = clip.getWorldVerticesLength();
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float[] vertices = this.vertices.setSize(n);
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clip.computeWorldVertices(slot, 0, n, vertices, 0, 2);
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if (!softwareClipping) {
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int n = clip.getWorldVerticesLength();
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float[] vertices = this.vertices.setSize(n);
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clip.computeWorldVertices(slot, 0, n, vertices, 0, 2);
|
||||
|
||||
Gdx.gl.glClearStencil(0);
|
||||
Gdx.gl.glClear(GL20.GL_STENCIL_BUFFER_BIT);
|
||||
Gdx.gl.glEnable(GL20.GL_STENCIL_TEST);
|
||||
Gdx.gl.glStencilFunc(GL20.GL_NEVER, 0, 1);
|
||||
Gdx.gl.glStencilOp(GL20.GL_INVERT, GL20.GL_INVERT, GL20.GL_INVERT);
|
||||
Gdx.gl.glColorMask(false, false, false, false);
|
||||
Gdx.gl.glClearStencil(0);
|
||||
Gdx.gl.glClear(GL20.GL_STENCIL_BUFFER_BIT);
|
||||
Gdx.gl.glEnable(GL20.GL_STENCIL_TEST);
|
||||
Gdx.gl.glStencilFunc(GL20.GL_NEVER, 0, 1);
|
||||
Gdx.gl.glStencilOp(GL20.GL_INVERT, GL20.GL_INVERT, GL20.GL_INVERT);
|
||||
Gdx.gl.glColorMask(false, false, false, false);
|
||||
|
||||
if (renderer == null || renderer.getMaxVertices() < n)
|
||||
renderer = new ImmediateModeRenderer20(Math.max(100, n), false, false, 0);
|
||||
renderer.begin(combinedMatrix.set(projectionMatrix).mul(transformMatrix), GL20.GL_TRIANGLE_FAN);
|
||||
renderer.vertex(vertices[0], vertices[1], 0);
|
||||
for (int i = 2; i < n; i += 2)
|
||||
renderer.vertex(vertices[i], vertices[i + 1], 0);
|
||||
renderer.end();
|
||||
if (renderer == null || renderer.getMaxVertices() < n)
|
||||
renderer = new ImmediateModeRenderer20(Math.max(100, n), false, false, 0);
|
||||
renderer.begin(combinedMatrix.set(projectionMatrix).mul(transformMatrix), GL20.GL_TRIANGLE_FAN);
|
||||
renderer.vertex(vertices[0], vertices[1], 0);
|
||||
for (int i = 2; i < n; i += 2)
|
||||
renderer.vertex(vertices[i], vertices[i + 1], 0);
|
||||
renderer.end();
|
||||
|
||||
Gdx.gl.glColorMask(true, true, true, true);
|
||||
Gdx.gl.glStencilFunc(clip.getInvert() ? GL20.GL_NOTEQUAL : GL20.GL_EQUAL, 1, 1);
|
||||
Gdx.gl.glStencilOp(GL20.GL_KEEP, GL20.GL_KEEP, GL20.GL_KEEP);
|
||||
Gdx.gl.glColorMask(true, true, true, true);
|
||||
Gdx.gl.glStencilFunc(clip.getInvert() ? GL20.GL_NOTEQUAL : GL20.GL_EQUAL, 1, 1);
|
||||
Gdx.gl.glStencilOp(GL20.GL_KEEP, GL20.GL_KEEP, GL20.GL_KEEP);
|
||||
} else {
|
||||
int n = clip.getWorldVerticesLength();
|
||||
float[] vertices = this.clippingArea.setSize(n);
|
||||
clip.computeWorldVertices(slot, 0, n, vertices, 0, 2);
|
||||
}
|
||||
}
|
||||
|
||||
private void clipEnd () {
|
||||
private void clipEnd() {
|
||||
clipAttachment = null;
|
||||
clipEnd = null;
|
||||
Gdx.gl.glDisable(GL20.GL_STENCIL_TEST);
|
||||
if (!softwareClipping) Gdx.gl.glDisable(GL20.GL_STENCIL_TEST);
|
||||
}
|
||||
|
||||
private void clipSoftware(float[] vertices, int offset, int verticesLength, short[] triangles, int triangleOffset, int trianglesLength, FloatArray clippedVertices, ShortArray clippedTriangles, float dark, float light, boolean twoColor) {
|
||||
int idx = 0;
|
||||
clippedVertices.clear();
|
||||
clippedTriangles.clear();
|
||||
final int vertexSize = twoColor ? 6 : 5;
|
||||
final int uvOffset = twoColor ? 4 : 3;
|
||||
for (int i = 0; i < trianglesLength; i += 3) {
|
||||
int triOffset = triangles[i] * vertexSize;
|
||||
clipInput[0] = vertices[triOffset];
|
||||
clipInput[1] = vertices[triOffset + 1];
|
||||
float u1 = vertices[triOffset + uvOffset];
|
||||
float v1 = vertices[triOffset + uvOffset + 1];
|
||||
|
||||
triOffset = triangles[i + 1] * vertexSize;
|
||||
clipInput[2] = vertices[triOffset];
|
||||
clipInput[3] = vertices[triOffset + 1];
|
||||
float u2 = vertices[triOffset + uvOffset];
|
||||
float v2 = vertices[triOffset + uvOffset + 1];
|
||||
|
||||
triOffset = triangles[i + 2] * vertexSize;
|
||||
clipInput[4] = vertices[triOffset];
|
||||
clipInput[5] = vertices[triOffset + 1];
|
||||
float u3 = vertices[triOffset + uvOffset];
|
||||
float v3 = vertices[triOffset + uvOffset + 1];
|
||||
|
||||
boolean clipped = clipper.clip(clipInput, 0, 6, 2, clippingArea, clipOutput);
|
||||
if (clipped) {
|
||||
float x1 = clipInput[0];
|
||||
float y1 = clipInput[1];
|
||||
float x2 = clipInput[2];
|
||||
float y2 = clipInput[3];
|
||||
float x3 = clipInput[4];
|
||||
float y3 = clipInput[5];
|
||||
|
||||
float d0 = y2 - y3;
|
||||
float d1 = x3 - x2;
|
||||
float d2 = x1 - x3;
|
||||
float d3 = y1 - y3;
|
||||
float d4 = y3 - y1;
|
||||
|
||||
float denom = 1 / (d0 * d2 + d1 * d3);
|
||||
|
||||
for (int j = 0; j < clipOutput.size; j += 2) {
|
||||
float x = clipOutput.get(j);
|
||||
float y = clipOutput.get(j + 1);
|
||||
|
||||
float a = (d0 * (x - x3) + d1 * (y - y3)) * denom;
|
||||
float b = (d4 * (x - x3) + d2 * (y - y3)) * denom;
|
||||
float c = 1.0f - a - b;
|
||||
|
||||
float u = u1 * a + u2 * b + u3 * c;
|
||||
float v = v1 * a + v2 * b + v3 * c;
|
||||
clippedVertices.add(x);
|
||||
clippedVertices.add(y);
|
||||
clippedVertices.add(light);
|
||||
if (twoColor) clippedVertices.add(dark);
|
||||
clippedVertices.add(u);
|
||||
clippedVertices.add(v);
|
||||
}
|
||||
|
||||
for (int j = 1; j < (clipOutput.size >> 1) - 1; j++) {
|
||||
clippedTriangles.add(idx);
|
||||
clippedTriangles.add(idx + j);
|
||||
clippedTriangles.add(idx + j + 1);
|
||||
}
|
||||
|
||||
idx += clipOutput.size >> 1;
|
||||
} else {
|
||||
clippedVertices.add(clipInput[0]);
|
||||
clippedVertices.add(clipInput[1]);
|
||||
clippedVertices.add(light);
|
||||
if (twoColor) clippedVertices.add(dark);
|
||||
clippedVertices.add(u1);
|
||||
clippedVertices.add(v1);
|
||||
|
||||
clippedVertices.add(clipInput[2]);
|
||||
clippedVertices.add(clipInput[3]);
|
||||
clippedVertices.add(light);
|
||||
if (twoColor) clippedVertices.add(dark);
|
||||
clippedVertices.add(u2);
|
||||
clippedVertices.add(v2);
|
||||
|
||||
clippedVertices.add(clipInput[4]);
|
||||
clippedVertices.add(clipInput[5]);
|
||||
clippedVertices.add(light);
|
||||
if (twoColor) clippedVertices.add(dark);
|
||||
clippedVertices.add(u3);
|
||||
clippedVertices.add(v3);
|
||||
|
||||
clippedTriangles.add(idx++);
|
||||
clippedTriangles.add(idx++);
|
||||
clippedTriangles.add(idx++);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void setPremultipliedAlpha (boolean premultipliedAlpha) {
|
||||
public void setPremultipliedAlpha(boolean premultipliedAlpha) {
|
||||
this.premultipliedAlpha = premultipliedAlpha;
|
||||
}
|
||||
|
||||
public boolean getSoftwareClipping () {
|
||||
return softwareClipping;
|
||||
}
|
||||
|
||||
public void setSoftwareClipping(boolean softwareClipping) {
|
||||
this.softwareClipping = softwareClipping;
|
||||
}
|
||||
}
|
||||
|
||||
@ -43,7 +43,7 @@ public class SutherlandHodgmanClipper {
|
||||
edgeY2 = tmp;
|
||||
}
|
||||
|
||||
System.out.println("-- Edge " + i / 2 + ": (" + edgeX + ", " + edgeY + ")-(" + edgeX2 + ", " + edgeY2 + ")");
|
||||
// System.out.println("-- Edge " + i / 2 + ": (" + edgeX + ", " + edgeY + ")-(" + edgeX2 + ", " + edgeY2 + ")");
|
||||
|
||||
for (int j = 0; j < input.size; j += 2) {
|
||||
float inputX = input.items[j % input.size];
|
||||
@ -51,11 +51,11 @@ public class SutherlandHodgmanClipper {
|
||||
float inputX2 = input.items[(j + 2) % input.size];
|
||||
float inputY2 = input.items[(j + 3) % input.size];
|
||||
|
||||
System.out.println("\tinput " + j / 2 + ": (" + inputX + ", " + inputY + ")-(" + inputX2 + ", " + inputY2 + ")");
|
||||
// System.out.println("\tinput " + j / 2 + ": (" + inputX + ", " + inputY + ")-(" + inputX2 + ", " + inputY2 + ")");
|
||||
|
||||
int side = pointLineSide(edgeX2, edgeY2, edgeX, edgeY, inputX, inputY);
|
||||
int side2 = pointLineSide(edgeX2, edgeY2, edgeX, edgeY, inputX2, inputY2);
|
||||
System.out.println("\tv1: " + (side < 0 ? "outside" : "inside" ) + ", v2: " + (side2 < 0 ? "outside" : "inside"));
|
||||
// System.out.println("\tv1: " + (side < 0 ? "outside" : "inside" ) + ", v2: " + (side2 < 0 ? "outside" : "inside"));
|
||||
|
||||
// v1 inside, v2 inside
|
||||
if (side >= 0 && side2 >= 0) {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user