Don't mind the mess!
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Texture_smiley.png (400 × 300 pixels, file size: 30 KB, MIME type: image/png)
Illustration of (u, v) assignment to vertices
This image was generated with the following program:
from direct.directbase.DirectStart import * from pandac.PandaModules import * import math base.setBackgroundColor(1, 1, 1, 1) smiley = loader.loadModel('smiley.egg') smiley.reparentTo(render) dl = DirectionalLight('dl') dlnp = base.camera.attachNewNode(dl) smiley.setLight(dlnp) def drawArrow(fromAngle, toAngle, numSteps = 100): arrow = NodePath('arrowRoot') ls = LineSegs('arc') ls.setColor(0.4, 0.5, 1, 1) for i in range(numSteps): t = float(i) / float(numSteps - 1) a = deg2Rad(fromAngle + (toAngle - fromAngle) * t) c = math.cos(a) s = math.sin(a) ls.drawTo(c, s, 0) arrow.attachNewNode(ls.create()) ls = LineSegs('h2') ls.setColor(0.4, 0.5, 1, 1) ls.moveTo(-0.03, 0, -0.07) ls.drawTo(0, 0, 0) ls.drawTo(0.03, 0, -0.07) h1 = arrow.attachNewNode('h1') h2 = h1.attachNewNode(ls.create()) h2.setBillboardAxis() h1.setPos(c, s, 0) h1.setHpr(toAngle - 180, 90, 0) return arrow ua = drawArrow(0, 200) ua.reparentTo(render) ua.setScale(1.2) ua.setHpr(90, 0, 0) va = drawArrow(0, 180) va.reparentTo(render) va.setScale(1.2) va.setHpr(270, 0, 90) tn = TextNode('label') tn.setTextColor(0.4, 0.5, 1, 1) tn.setAlign(TextNode.ACenter) tn.setSlant(0.2) tn.setText('u') tnpU = aspect2d.attachNewNode(tn.generate()) tnpU.setPos(-0.9, 0, -0.14) tnpU.setScale(0.1) tn.setText('v') tnpV = aspect2d.attachNewNode(tn.generate()) tnpV.setPos(0.9, 0, -0.4) tnpV.setScale(0.1) base.disableMouse() camera.setPos(1, -5, 1) camera.setHpr(12, -10, 0) base.graphicsEngine.renderFrame() base.screenshot('texture_smiley.png', defaultFilename = 0) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:25, 4 October 2005 | 400 × 300 (30 KB) | Drwr (Talk | contribs) | Illustration of (u, v) assignment to vertices |
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