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Add LTE SpectralAPI example USDA files
Example files demonstrating wavelength-dependent material and light properties: - spectral-material.usda: Materials with wavelength:reflectance and wavelength:ior (red, glass, fused silica with Sellmeier, foliage, gold) - spectral-light.usda: Light sources with wavelength:emission (D65, D50, A, F2 illuminant presets, custom LED, sodium lamp) - spectral-scene.usda: Complete scene with diamond dispersion, water, copper under D65/D50 lighting 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Syoyo Fujita
218
models/spectral-light.usda
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218
models/spectral-light.usda
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#usda 1.0
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(
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doc = """LTE SpectralAPI Light Source Examples
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Demonstrates wavelength-dependent light emission using the wavelength: namespace.
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See doc/lte_spectral_api.md for specification.
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Examples include:
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- D65 standard illuminant (daylight)
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- D50 standard illuminant (horizon light)
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- Illuminant A (incandescent)
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- Custom spectral emission (warm LED)
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- Fluorescent light (F2)
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"""
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metersPerUnit = 1
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upAxis = "Y"
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customLayerData = {
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string unitForWavelength = "nanometers"
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}
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)
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def Xform "Lights"
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{
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# D65 Daylight using illuminant preset
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def DistantLight "D65_Sunlight" (
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doc = "CIE Standard Illuminant D65 (noon daylight, 6504K)"
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)
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{
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float inputs:intensity = 1.0
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color3f inputs:color = (1.0, 1.0, 1.0)
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float3 xformOp:rotateXYZ = (-45, 30, 0)
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uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
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# LTE SpectralAPI: D65 illuminant preset
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# Empty samples with preset metadata
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float2[] wavelength:emission = [] (
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customData = {
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string illuminantPreset = "d65"
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}
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)
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}
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# D50 Horizon light using illuminant preset
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def DistantLight "D50_HorizonLight" (
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doc = "CIE Standard Illuminant D50 (horizon daylight, 5003K)"
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)
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{
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float inputs:intensity = 0.8
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color3f inputs:color = (1.0, 0.95, 0.9)
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float3 xformOp:rotateXYZ = (-15, -60, 0)
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uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
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# LTE SpectralAPI: D50 illuminant preset
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float2[] wavelength:emission = [] (
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customData = {
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string illuminantPreset = "d50"
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}
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)
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}
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# Illuminant A (incandescent/tungsten)
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def SphereLight "IncandescentBulb" (
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doc = "CIE Standard Illuminant A (incandescent, 2856K)"
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)
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{
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float inputs:intensity = 500
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color3f inputs:color = (1.0, 0.85, 0.65)
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float inputs:radius = 0.05
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double3 xformOp:translate = (2, 3, 1)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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# LTE SpectralAPI: Illuminant A preset
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float2[] wavelength:emission = [] (
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customData = {
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string illuminantPreset = "a"
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}
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)
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}
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# Custom warm LED spectrum
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def RectLight "WarmLED" (
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doc = "Custom warm white LED spectral power distribution"
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)
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{
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float inputs:intensity = 200
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color3f inputs:color = (1.0, 0.9, 0.75)
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float inputs:width = 0.5
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float inputs:height = 0.5
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double3 xformOp:translate = (-2, 3, 0)
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float3 xformOp:rotateXYZ = (90, 0, 0)
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uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ"]
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# LTE SpectralAPI: Custom LED SPD
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# Blue pump peak + phosphor emission
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float2[] wavelength:emission = [
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(380, 0.02), (400, 0.05), (420, 0.15), (440, 0.45),
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(450, 0.85), (455, 1.00), (460, 0.90), (470, 0.40),
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(480, 0.25), (500, 0.35), (520, 0.50), (540, 0.65),
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(560, 0.80), (580, 0.90), (600, 0.88), (620, 0.75),
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(640, 0.58), (660, 0.40), (680, 0.25), (700, 0.15),
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(720, 0.08), (740, 0.04), (760, 0.02), (780, 0.01)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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# F2 Cool White Fluorescent
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def RectLight "FluorescentPanel" (
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doc = "CIE Fluorescent Illuminant F2 (cool white fluorescent)"
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)
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{
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float inputs:intensity = 150
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color3f inputs:color = (1.0, 1.0, 0.95)
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float inputs:width = 1.2
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float inputs:height = 0.3
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double3 xformOp:translate = (0, 4, 0)
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float3 xformOp:rotateXYZ = (90, 0, 0)
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uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ"]
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# LTE SpectralAPI: F2 fluorescent preset
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float2[] wavelength:emission = [] (
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customData = {
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string illuminantPreset = "f2"
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}
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)
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}
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# Explicit D65 SPD (relative spectral power distribution)
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def DistantLight "D65_Explicit" (
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doc = "D65 with explicit SPD data (normalized at 560nm)"
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)
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{
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float inputs:intensity = 0.5
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color3f inputs:color = (1.0, 1.0, 1.0)
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float3 xformOp:rotateXYZ = (-60, 90, 0)
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uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
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# LTE SpectralAPI: Explicit D65 relative SPD
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# Values normalized so 560nm = 100.0
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float2[] wavelength:emission = [
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(380, 49.98), (390, 52.31), (400, 54.65), (410, 68.70),
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(420, 82.75), (430, 87.12), (440, 91.49), (450, 92.46),
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(460, 93.43), (470, 90.06), (480, 86.68), (490, 95.77),
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(500, 104.86), (510, 110.94), (520, 117.01), (530, 117.41),
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(540, 117.81), (550, 116.34), (560, 100.00), (570, 108.40),
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(580, 103.90), (590, 104.05), (600, 100.00), (610, 96.33),
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(620, 95.79), (630, 88.69), (640, 90.01), (650, 89.60),
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(660, 87.70), (670, 83.29), (680, 83.70), (690, 80.03),
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(700, 80.21), (710, 82.28), (720, 78.28), (730, 69.72),
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(740, 71.61), (750, 74.35), (760, 61.60), (770, 69.89), (780, 75.09)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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# Monochromatic sodium lamp
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def SphereLight "SodiumLamp" (
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doc = "Low-pressure sodium lamp (nearly monochromatic at 589nm)"
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)
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{
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float inputs:intensity = 300
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color3f inputs:color = (1.0, 0.83, 0.0)
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float inputs:radius = 0.1
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double3 xformOp:translate = (3, 2.5, -2)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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# LTE SpectralAPI: Narrow-band sodium emission
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# Dominant 589nm D-line
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float2[] wavelength:emission = [
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(380, 0.0), (500, 0.0), (580, 0.01), (585, 0.10),
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(587, 0.50), (589, 1.00), (591, 0.50), (593, 0.10),
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(600, 0.01), (700, 0.0), (780, 0.0)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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}
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def Xform "Geometry"
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{
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# Test spheres to see lighting
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def Sphere "TestSphere1"
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{
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double radius = 0.3
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double3 xformOp:translate = (-1.5, 0.3, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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}
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def Sphere "TestSphere2"
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{
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double radius = 0.3
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double3 xformOp:translate = (0, 0.3, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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}
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def Sphere "TestSphere3"
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{
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double radius = 0.3
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double3 xformOp:translate = (1.5, 0.3, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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}
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# Ground plane
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def Mesh "Ground"
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{
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int[] faceVertexCounts = [4]
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int[] faceVertexIndices = [0, 1, 2, 3]
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point3f[] points = [(-5, 0, -5), (5, 0, -5), (5, 0, 5), (-5, 0, 5)]
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normal3f[] primvars:normals = [(0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
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interpolation = "vertex"
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)
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}
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}
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231
models/spectral-material.usda
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231
models/spectral-material.usda
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@@ -0,0 +1,231 @@
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#usda 1.0
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(
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doc = """LTE SpectralAPI Material Examples
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Demonstrates wavelength-dependent material properties using the wavelength: namespace.
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See doc/lte_spectral_api.md for specification.
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Examples include:
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- Spectral reflectance (wavelength:reflectance)
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- Spectral IOR with various interpolation methods
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- Sellmeier coefficients for glass dispersion
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"""
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metersPerUnit = 1
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upAxis = "Y"
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customLayerData = {
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string unitForWavelength = "nanometers"
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}
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)
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def Scope "Materials"
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{
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# Basic spectral material with reflectance data
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def Material "SpectralRedMaterial"
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{
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token outputs:surface.connect = </Materials/SpectralRedMaterial/PBRShader.outputs:surface>
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def Shader "PBRShader"
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{
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uniform token info:id = "UsdPreviewSurface"
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color3f inputs:diffuseColor = (0.8, 0.1, 0.1)
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float inputs:roughness = 0.4
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float inputs:metallic = 0.0
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float inputs:ior = 1.5
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token outputs:surface
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# LTE SpectralAPI: Spectral reflectance
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# Red-shifted reflectance curve
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float2[] wavelength:reflectance = [
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(380, 0.05), (400, 0.05), (420, 0.05), (440, 0.05),
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(460, 0.06), (480, 0.07), (500, 0.08), (520, 0.10),
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(540, 0.15), (560, 0.25), (580, 0.45), (600, 0.65),
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(620, 0.78), (640, 0.85), (660, 0.88), (680, 0.90),
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(700, 0.91), (720, 0.92), (740, 0.92), (760, 0.93), (780, 0.93)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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}
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# Spectral material with IOR dispersion (crown glass)
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def Material "SpectralGlassMaterial"
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{
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token outputs:surface.connect = </Materials/SpectralGlassMaterial/PBRShader.outputs:surface>
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def Shader "PBRShader"
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{
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uniform token info:id = "UsdPreviewSurface"
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color3f inputs:diffuseColor = (1.0, 1.0, 1.0)
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float inputs:roughness = 0.0
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float inputs:metallic = 0.0
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float inputs:opacity = 0.1
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float inputs:ior = 1.52
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token outputs:surface
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# LTE SpectralAPI: Spectral IOR (BK7 Crown Glass)
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# IOR varies with wavelength (dispersion)
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float2[] wavelength:ior = [
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(380, 1.5308), (400, 1.5253), (420, 1.5214),
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(440, 1.5183), (460, 1.5158), (480, 1.5137),
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(500, 1.5120), (520, 1.5105), (540, 1.5092),
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(560, 1.5080), (580, 1.5070), (600, 1.5061),
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(620, 1.5053), (640, 1.5046), (660, 1.5039),
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(680, 1.5033), (700, 1.5028), (720, 1.5023),
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(740, 1.5018), (760, 1.5014), (780, 1.5010)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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}
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# Spectral material with Sellmeier IOR (fused silica)
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def Material "SpectralFusedSilicaMaterial"
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{
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token outputs:surface.connect = </Materials/SpectralFusedSilicaMaterial/PBRShader.outputs:surface>
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def Shader "PBRShader"
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{
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uniform token info:id = "UsdPreviewSurface"
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color3f inputs:diffuseColor = (1.0, 1.0, 1.0)
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float inputs:roughness = 0.0
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float inputs:metallic = 0.0
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float inputs:opacity = 0.05
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float inputs:ior = 1.458
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token outputs:surface
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# LTE SpectralAPI: Sellmeier coefficients for fused silica
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# n^2 = 1 + B1*l^2/(l^2-C1) + B2*l^2/(l^2-C2) + B3*l^2/(l^2-C3)
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# where l is wavelength in micrometers
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float2[] wavelength:ior = [
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(0.6961663, 0.0684043), # (B1, C1) - C1 in um^2
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(0.4079426, 0.1162414), # (B2, C2)
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(0.8974794, 9.896161) # (B3, C3)
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] (
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customData = {
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string interpolation = "sellmeier"
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string unitForWavelength = "micrometers"
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}
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)
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}
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}
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# Spectral material with green foliage reflectance
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def Material "SpectralFoliageMaterial"
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{
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token outputs:surface.connect = </Materials/SpectralFoliageMaterial/PBRShader.outputs:surface>
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def Shader "PBRShader"
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{
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uniform token info:id = "UsdPreviewSurface"
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color3f inputs:diffuseColor = (0.2, 0.5, 0.15)
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float inputs:roughness = 0.6
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float inputs:metallic = 0.0
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token outputs:surface
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# LTE SpectralAPI: Typical green foliage reflectance
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# Shows chlorophyll absorption (low blue/red, high green/NIR)
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float2[] wavelength:reflectance = [
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(380, 0.03), (400, 0.04), (420, 0.04), (440, 0.05),
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(460, 0.05), (480, 0.06), (500, 0.08), (520, 0.12),
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(540, 0.18), (560, 0.20), (580, 0.15), (600, 0.10),
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(620, 0.08), (640, 0.07), (660, 0.06), (680, 0.08),
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(700, 0.35), (720, 0.45), (740, 0.48), (760, 0.50), (780, 0.52)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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}
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# Gold metal with spectral reflectance
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def Material "SpectralGoldMaterial"
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{
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token outputs:surface.connect = </Materials/SpectralGoldMaterial/PBRShader.outputs:surface>
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def Shader "PBRShader"
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{
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uniform token info:id = "UsdPreviewSurface"
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color3f inputs:diffuseColor = (1.0, 0.84, 0.0)
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float inputs:roughness = 0.2
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float inputs:metallic = 1.0
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token outputs:surface
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# LTE SpectralAPI: Gold reflectance spectrum
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# High reflectance in red/IR, absorption in blue/green
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float2[] wavelength:reflectance = [
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(380, 0.35), (400, 0.38), (420, 0.38), (440, 0.37),
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(460, 0.36), (480, 0.36), (500, 0.42), (520, 0.62),
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(540, 0.82), (560, 0.90), (580, 0.93), (600, 0.95),
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(620, 0.96), (640, 0.97), (660, 0.97), (680, 0.98),
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(700, 0.98), (720, 0.98), (740, 0.99), (760, 0.99), (780, 0.99)
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] (
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customData = {
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string interpolation = "linear"
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}
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)
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}
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}
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}
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def Xform "Geometry"
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{
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# Sphere with red spectral material
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def Sphere "RedSphere"
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{
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double radius = 0.5
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double3 xformOp:translate = (-2, 0.5, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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rel material:binding = </Materials/SpectralRedMaterial>
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}
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# Sphere with glass material (IOR dispersion)
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def Sphere "GlassSphere"
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{
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double radius = 0.5
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double3 xformOp:translate = (-1, 0.5, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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rel material:binding = </Materials/SpectralGlassMaterial>
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}
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# Sphere with fused silica (Sellmeier)
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def Sphere "SilicaSphere"
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{
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double radius = 0.5
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double3 xformOp:translate = (0, 0.5, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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rel material:binding = </Materials/SpectralFusedSilicaMaterial>
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}
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# Sphere with foliage material
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def Sphere "FoliageSphere"
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{
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double radius = 0.5
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double3 xformOp:translate = (1, 0.5, 0)
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uniform token[] xformOpOrder = ["xformOp:translate"]
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rel material:binding = </Materials/SpectralFoliageMaterial>
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}
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# Sphere with gold material
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def Sphere "GoldSphere"
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{
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double radius = 0.5
|
||||
double3 xformOp:translate = (2, 0.5, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:translate"]
|
||||
rel material:binding = </Materials/SpectralGoldMaterial>
|
||||
}
|
||||
|
||||
# Ground plane
|
||||
def Mesh "Ground"
|
||||
{
|
||||
int[] faceVertexCounts = [4]
|
||||
int[] faceVertexIndices = [0, 1, 2, 3]
|
||||
point3f[] points = [(-5, 0, -5), (5, 0, -5), (5, 0, 5), (-5, 0, 5)]
|
||||
normal3f[] primvars:normals = [(0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
|
||||
interpolation = "vertex"
|
||||
)
|
||||
}
|
||||
}
|
||||
234
models/spectral-scene.usda
Normal file
234
models/spectral-scene.usda
Normal file
@@ -0,0 +1,234 @@
|
||||
#usda 1.0
|
||||
(
|
||||
doc = """LTE SpectralAPI Complete Scene Example
|
||||
Demonstrates a complete scene with spectral materials and lights.
|
||||
Useful for testing spectral rendering pipelines.
|
||||
|
||||
Scene: Glass prism demonstrating dispersion under D65 daylight
|
||||
"""
|
||||
metersPerUnit = 1
|
||||
upAxis = "Y"
|
||||
customLayerData = {
|
||||
string unitForWavelength = "nanometers"
|
||||
}
|
||||
)
|
||||
|
||||
def Xform "Scene"
|
||||
{
|
||||
def Scope "Materials"
|
||||
{
|
||||
# Diamond with high dispersion (Sellmeier coefficients)
|
||||
def Material "DiamondMaterial"
|
||||
{
|
||||
token outputs:surface.connect = </Scene/Materials/DiamondMaterial/Shader.outputs:surface>
|
||||
|
||||
def Shader "Shader"
|
||||
{
|
||||
uniform token info:id = "UsdPreviewSurface"
|
||||
color3f inputs:diffuseColor = (1.0, 1.0, 1.0)
|
||||
float inputs:roughness = 0.0
|
||||
float inputs:metallic = 0.0
|
||||
float inputs:opacity = 0.02
|
||||
float inputs:ior = 2.417
|
||||
token outputs:surface
|
||||
|
||||
# LTE SpectralAPI: Diamond Sellmeier coefficients
|
||||
# Very high dispersion (fire)
|
||||
float2[] wavelength:ior = [
|
||||
(0.4083, 0.0), # (B1, C1) C in um^2
|
||||
(0.0, 0.0), # (B2, C2)
|
||||
(4.3356, 0.01064) # (B3, C3)
|
||||
] (
|
||||
customData = {
|
||||
string interpolation = "sellmeier"
|
||||
string unitForWavelength = "micrometers"
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
# White diffuse reference
|
||||
def Material "WhiteDiffuse"
|
||||
{
|
||||
token outputs:surface.connect = </Scene/Materials/WhiteDiffuse/Shader.outputs:surface>
|
||||
|
||||
def Shader "Shader"
|
||||
{
|
||||
uniform token info:id = "UsdPreviewSurface"
|
||||
color3f inputs:diffuseColor = (0.9, 0.9, 0.9)
|
||||
float inputs:roughness = 1.0
|
||||
float inputs:metallic = 0.0
|
||||
token outputs:surface
|
||||
|
||||
# LTE SpectralAPI: Near-perfect white reflectance
|
||||
float2[] wavelength:reflectance = [
|
||||
(380, 0.88), (400, 0.89), (420, 0.89), (440, 0.90),
|
||||
(460, 0.90), (480, 0.90), (500, 0.90), (520, 0.90),
|
||||
(540, 0.90), (560, 0.90), (580, 0.90), (600, 0.90),
|
||||
(620, 0.90), (640, 0.90), (660, 0.90), (680, 0.90),
|
||||
(700, 0.90), (720, 0.90), (740, 0.90), (760, 0.90), (780, 0.90)
|
||||
] (
|
||||
customData = {
|
||||
string interpolation = "linear"
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
# Water material
|
||||
def Material "WaterMaterial"
|
||||
{
|
||||
token outputs:surface.connect = </Scene/Materials/WaterMaterial/Shader.outputs:surface>
|
||||
|
||||
def Shader "Shader"
|
||||
{
|
||||
uniform token info:id = "UsdPreviewSurface"
|
||||
color3f inputs:diffuseColor = (0.8, 0.9, 1.0)
|
||||
float inputs:roughness = 0.0
|
||||
float inputs:metallic = 0.0
|
||||
float inputs:opacity = 0.1
|
||||
float inputs:ior = 1.333
|
||||
token outputs:surface
|
||||
|
||||
# LTE SpectralAPI: Water IOR (slight dispersion)
|
||||
float2[] wavelength:ior = [
|
||||
(380, 1.3435), (400, 1.3420), (420, 1.3408),
|
||||
(440, 1.3397), (460, 1.3388), (480, 1.3380),
|
||||
(500, 1.3373), (520, 1.3367), (540, 1.3362),
|
||||
(560, 1.3357), (580, 1.3353), (600, 1.3349),
|
||||
(620, 1.3346), (640, 1.3343), (660, 1.3340),
|
||||
(680, 1.3337), (700, 1.3335), (720, 1.3333),
|
||||
(740, 1.3331), (760, 1.3329), (780, 1.3327)
|
||||
] (
|
||||
customData = {
|
||||
string interpolation = "linear"
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
# Copper metal
|
||||
def Material "CopperMaterial"
|
||||
{
|
||||
token outputs:surface.connect = </Scene/Materials/CopperMaterial/Shader.outputs:surface>
|
||||
|
||||
def Shader "Shader"
|
||||
{
|
||||
uniform token info:id = "UsdPreviewSurface"
|
||||
color3f inputs:diffuseColor = (0.95, 0.64, 0.54)
|
||||
float inputs:roughness = 0.3
|
||||
float inputs:metallic = 1.0
|
||||
token outputs:surface
|
||||
|
||||
# LTE SpectralAPI: Copper reflectance
|
||||
float2[] wavelength:reflectance = [
|
||||
(380, 0.30), (400, 0.32), (420, 0.33), (440, 0.35),
|
||||
(460, 0.38), (480, 0.42), (500, 0.50), (520, 0.58),
|
||||
(540, 0.66), (560, 0.74), (580, 0.82), (600, 0.88),
|
||||
(620, 0.92), (640, 0.94), (660, 0.95), (680, 0.96),
|
||||
(700, 0.97), (720, 0.97), (740, 0.98), (760, 0.98), (780, 0.98)
|
||||
] (
|
||||
customData = {
|
||||
string interpolation = "linear"
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
def Scope "Lights"
|
||||
{
|
||||
# Main D65 sunlight
|
||||
def DistantLight "Sun"
|
||||
{
|
||||
float inputs:intensity = 1.5
|
||||
color3f inputs:color = (1.0, 1.0, 1.0)
|
||||
float3 xformOp:rotateXYZ = (-45, 30, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
|
||||
|
||||
float2[] wavelength:emission = [] (
|
||||
customData = {
|
||||
string illuminantPreset = "d65"
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
# Fill light (warmer)
|
||||
def DistantLight "FillLight"
|
||||
{
|
||||
float inputs:intensity = 0.3
|
||||
color3f inputs:color = (1.0, 0.95, 0.85)
|
||||
float3 xformOp:rotateXYZ = (-20, -60, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
|
||||
|
||||
float2[] wavelength:emission = [] (
|
||||
customData = {
|
||||
string illuminantPreset = "d50"
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
def Xform "Objects"
|
||||
{
|
||||
# Diamond gem
|
||||
def Mesh "Diamond"
|
||||
{
|
||||
# Simplified diamond shape (octahedron)
|
||||
int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
|
||||
int[] faceVertexIndices = [
|
||||
0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1,
|
||||
5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4
|
||||
]
|
||||
point3f[] points = [
|
||||
(0, 0.5, 0),
|
||||
(0.35, 0, 0.35), (0.35, 0, -0.35),
|
||||
(-0.35, 0, -0.35), (-0.35, 0, 0.35),
|
||||
(0, -0.3, 0)
|
||||
]
|
||||
double3 xformOp:translate = (0, 0.5, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:translate"]
|
||||
rel material:binding = </Scene/Materials/DiamondMaterial>
|
||||
}
|
||||
|
||||
# Water droplet
|
||||
def Sphere "WaterDrop"
|
||||
{
|
||||
double radius = 0.2
|
||||
double3 xformOp:translate = (-1, 0.2, 0.5)
|
||||
uniform token[] xformOpOrder = ["xformOp:translate"]
|
||||
rel material:binding = </Scene/Materials/WaterMaterial>
|
||||
}
|
||||
|
||||
# Copper sphere
|
||||
def Sphere "CopperSphere"
|
||||
{
|
||||
double radius = 0.25
|
||||
double3 xformOp:translate = (1, 0.25, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:translate"]
|
||||
rel material:binding = </Scene/Materials/CopperMaterial>
|
||||
}
|
||||
|
||||
# Ground plane
|
||||
def Mesh "Ground"
|
||||
{
|
||||
int[] faceVertexCounts = [4]
|
||||
int[] faceVertexIndices = [0, 1, 2, 3]
|
||||
point3f[] points = [(-3, 0, -3), (3, 0, -3), (3, 0, 3), (-3, 0, 3)]
|
||||
normal3f[] primvars:normals = [(0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
|
||||
interpolation = "vertex"
|
||||
)
|
||||
rel material:binding = </Scene/Materials/WhiteDiffuse>
|
||||
}
|
||||
}
|
||||
|
||||
def Camera "MainCamera"
|
||||
{
|
||||
float focalLength = 35
|
||||
float horizontalAperture = 36
|
||||
float verticalAperture = 24
|
||||
double3 xformOp:translate = (0, 1.5, 4)
|
||||
float3 xformOp:rotateXYZ = (-15, 0, 0)
|
||||
uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ"]
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user