121 lines
4.4 KiB
Text
121 lines
4.4 KiB
Text
-- The Khronos Sponza atrium, packed with util/packGlb.py from the glTF-Sample-Models 2.0 Sponza.
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-- A warm sun falls through the roof opening onto the atrium floor with hard shadows, braziers along the nave
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-- add pools of firelight with particle flames and smoke, each crackling from where it stands (the
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-- listener is the camera), and dust drifts in the sunbeams; the camera walks the ground floor,
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-- crosses the atrium, climbs to the gallery, then passes the columns.
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local font = fontLoad("Singe/FreeSansBold.ttf", 28)
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local frames = 0
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fontSelect(font)
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sceneEnable(true)
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sceneSetBackground(120, 150, 200, 255)
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sceneSetAmbient(120, 126, 150)
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sceneSetShadowSize(2048)
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sceneSetBloom(1.2, 0.25)
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local model = modelLoad("testScripts/Models/Sponza.glb")
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local sponza = modelInstance(model)
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-- The sun: high and warm so it falls through the roof opening onto the atrium floor.
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local sun = lightNew(LIGHT_DIRECTIONAL)
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nodeSetPosition(sun, 5, 22, 4)
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nodeLookAt(sun, -2, 0, -1.5)
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lightSetIntensity(sun, 4.5)
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lightSetColor(sun, 255, 236, 205)
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lightSetShadow(sun, true)
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-- Braziers: warm point lights along the nave, the two nearest the camera path casting shadows,
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-- each with a flame and a thread of smoke.
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local fire = materialNew()
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materialSetColor(fire, 60, 40, 30)
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local crackle = soundLoad("testScripts/crackle.wav")
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local braziers = {}
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for i, p in ipairs({ { 6.5, 1.1, -2.2 }, { 6.5, 1.1, 2.2 }, { -6.5, 1.1, -2.2 }, { -6.5, 1.1, 2.2 }, { 0, 1.1, -2.4 }, { 0, 1.1, 2.4 } }) do
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local bowl = nodeNew()
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nodeSetMesh(bowl, meshCylinder(0.35, 0.25, 12), fire)
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nodeSetPosition(bowl, p[1], p[2] - 0.15, p[3])
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local glowNode = nodeNew()
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nodeSetPosition(glowNode, p[1], p[2] + 0.35, p[3])
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local lamp = lightNew(LIGHT_POINT)
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nodeSetParent(lamp, glowNode)
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lightSetColor(lamp, 255, 170, 80)
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lightSetIntensity(lamp, 6)
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lightSetRange(lamp, 12)
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lightSetShadow(lamp, i <= 2)
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local flame = emitterNew(glowNode)
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emitterSetBlend(flame, PARTICLE_ADD)
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emitterSetRate(flame, 60)
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emitterSetLife(flame, 0.4, 0.8)
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emitterSetSpeed(flame, 0.5, 1.1)
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emitterSetDirection(flame, 0, 1, 0)
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emitterSetSpread(flame, 18)
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emitterSetSize(flame, 0.22, 0.04, 0.15)
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emitterSetColor(flame, 255, 190, 90, 255, 255, 60, 0, 0)
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emitterSetRadius(flame, 0.1)
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emitterStart(flame)
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local smoke = emitterNew(glowNode)
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emitterSetRate(smoke, 12)
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emitterSetLife(smoke, 2.5, 4)
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emitterSetSpeed(smoke, 0.4, 0.7)
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emitterSetDirection(smoke, 0, 1, 0)
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emitterSetSpread(smoke, 12)
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emitterSetSize(smoke, 0.15, 0.8, 0.15)
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emitterSetColor(smoke, 90, 80, 75, 90, 50, 45, 45, 0)
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emitterSetSpin(smoke, -25, 25)
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emitterSetLit(smoke, true)
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emitterSetSoftness(smoke, 0.4)
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emitterStart(smoke)
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local channel = soundPlay(crackle, -1)
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if channel >= 0 then
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soundSetNode(channel, glowNode)
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soundSetRange(channel, 1.5, 14)
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end
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braziers[i] = glowNode
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end
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-- Dust in the sunbeams over the atrium floor.
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local air = nodeNew()
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nodeSetPosition(air, 0, 3, 0)
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local dust = emitterNew(air)
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emitterSetRate(dust, 40)
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emitterSetLife(dust, 5, 8)
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emitterSetSpeed(dust, 0.05, 0.25)
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emitterSetSpread(dust, 180)
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emitterSetSize(dust, 0.05, 0.05)
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emitterSetColor(dust, 255, 240, 210, 0, 255, 240, 210, 190)
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emitterSetRadius(dust, 5)
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emitterSetMax(dust, 400)
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emitterStart(dust)
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emitterBurst(dust, 300)
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local camera = nodeNew()
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cameraSet(camera)
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cameraSetPerspective(65, 0.05, 100)
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local stops = {
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{ 10, 1.6, 0, -10, 2.5, 0 }, -- Ground floor, along the nave past the braziers
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{ 1.2, 1.6, 5.2, -1, 3.5, -5 }, -- Across the atrium toward the far arcade
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{ -9, 5.5, -1, 6, 3, 1 }, -- From the upper gallery
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{ 5, 1.2, -1.5, -8, 2, 1.5 }, -- Low, past the columns and a brazier
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}
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function onOverlayUpdate()
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local stop = stops[math.min(#stops, math.floor(frames / 45) + 1)]
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frames = frames + 1
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nodeSetPosition(camera, stop[1], stop[2], stop[3])
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nodeLookAt(camera, stop[4], stop[5], stop[6])
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overlayClear()
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fontPrint(20, 20, "Sponza, frame " .. frames)
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if frames == 40 or frames == 85 or frames == 130 or frames == 175 then
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singeScreenshot()
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local total, drawn, calls, textureKB = sceneGetStats()
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debugPrint(string.format("frame %d draws %d in view %d calls %d texture %d KB", frames, total, drawn, calls, textureKB))
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for channel = 0, 5 do
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local x, y, z, gain = soundGetPosition(channel)
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debugPrint(string.format("frame %d brazier channel %d at %.1f %.1f %.1f gain %.2f", frames, channel, x, y, z, gain))
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end
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end
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if frames == 180 then
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singeQuit()
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end
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end
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