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render ortho map thumbnails
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src/main/java/game/map/editor/MapEditor.java
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src/main/java/game/map/editor/MapEditor.java
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public PostProcessFX postProcessFX = PostProcessFX.NONE;
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public boolean thumbnailMode = false;
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public float thumbnailOrthoHalfHeight = 500f;
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public boolean showModels;
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public boolean showColliders;
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public boolean showZones;
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obj.hidden = true;
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for (MapObject obj : getCollisionMap().zoneTree)
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obj.hidden = true;
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// for(MapObject obj : map.markerTree) obj.hidden = true;
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if (!thumbnailInitialized)
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initThumbnail();
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// Isometric camera: 45 degrees right, 45 degrees down
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var camera = perspectiveView.camera;
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camera.yaw = -45f;
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camera.pitch = 45f;
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// Frame the map's model tree AABB
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BoundingBox aabb = map.modelTree.getRoot().getUserObject().AABB;
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Vector3f center = aabb.getCenter();
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camera.setPosition(center);
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// Project all 8 AABB corners through the view rotation to find
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// the screen-space bounding box. View = Rx(pitch) * Ry(yaw) * (p - center).
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Vector3f bmin = aabb.getMin();
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Vector3f bmax = aabb.getMax();
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float[] xs = { bmin.x, bmax.x };
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float[] ys = { bmin.y, bmax.y };
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float[] zs = { bmin.z, bmax.z };
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double yawRad = Math.toRadians(-45);
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double pitchRad = Math.toRadians(45);
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double cy = Math.cos(yawRad), sy = Math.sin(yawRad);
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double cp = Math.cos(pitchRad), sp = Math.sin(pitchRad);
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float screenMinX = Float.MAX_VALUE, screenMaxX = -Float.MAX_VALUE;
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float screenMinY = Float.MAX_VALUE, screenMaxY = -Float.MAX_VALUE;
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for (float wx : xs) {
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for (float wy : ys) {
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for (float wz : zs) {
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// translate to camera-relative
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float px = wx - center.x;
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float py = wy - center.y;
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float pz = wz - center.z;
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// Ry(yaw)
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float rx = (float)(px * cy + pz * sy);
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float ry = py;
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float rz = (float)(-px * sy + pz * cy);
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// Rx(pitch)
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float sx = rx;
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float syt = (float)(ry * cp - rz * sp);
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// screen X = sx, screen Y = syt
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screenMinX = Math.min(screenMinX, sx);
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screenMaxX = Math.max(screenMaxX, sx);
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screenMinY = Math.min(screenMinY, syt);
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screenMaxY = Math.max(screenMaxY, syt);
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}
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}
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}
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float halfW = (screenMaxX - screenMinX) / 2f;
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float halfH = (screenMaxY - screenMinY) / 2f;
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thumbnailOrthoHalfHeight = Math.max(Math.max(halfW, halfH), 50f);
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perspectiveView.resize(0, 0, size, size);
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src/main/java/game/map/editor/camera/PerspBaseCamera.java
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src/main/java/game/map/editor/camera/PerspBaseCamera.java
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currentZfar = scriptData.camFarClip.get();
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}
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projMatrix.perspective(currentVfov, currentAspectRatio, currentZnear, currentZfar);
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if (editor.thumbnailMode) {
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float halfH = editor.thumbnailOrthoHalfHeight;
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float halfW = halfH * currentAspectRatio;
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projMatrix.ortho(-halfW, halfW, -halfH, halfH, -currentZfar, currentZfar);
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}
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else {
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projMatrix.perspective(currentVfov, currentAspectRatio, currentZnear, currentZfar);
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}
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}
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@Override