https://stackoverflow.com/questions/16955533
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RussianTo be honest, I am pretty surprised that no one could give an answer to my question. But cutting the crap and coming to the point.
For putting an Image on a surface you need to have good knowledge of Collada. First make an object of [CImage]: (http://pycollada.github.io/reference/generated/collada.material.CImage.html?highlight=cimage#collada.material.CImage) , Include that in Surface object, Include this in Sampler2d object. Include this Sampler2d object in Map object. Include this map in Effects which is further included in Materials.
Now include this material in scene.MaterialNode class' object which is further included in scene.GeometryNode class' object which is at last included in scene.Node object. I know this is bit tuff to understand
For understanding below is the code in python using pycollad which adds photos as textures on the two faces of the cuboids of any length, breadth, and height.
import numpy as np
from collada import *
mesh = Collada()
axis = asset.UP_AXIS.Z_UP
mesh.assetInfo.upaxis = axis
image = material.CImage("material_0_1_0-image", "DSC_5195.jpg")
surface = material.Surface("material_0_1_0-image-surface", image)
sampler2d = material.Sampler2D("material_0_1_0-image-sampler", surface)
map1 = material.Map(sampler2d, "UVSET0")
image2 = material.CImage("material_0_1_1-image", "Untitled.png")
surface2 = material.Surface("material_0_1_1-image-surface", image2)
sampler2d_2 = material.Sampler2D("material_0_1_1-image-sampler", surface2)
map2 = material.Map(sampler2d_2, "UVSET0")
effect1 = material.Effect("material_0_0-effect", [], "lambert", emission=(0.0, 0.0, 0.0, 1),\
ambient=(0.0, 0.0, 0.0, 1), diffuse=(0.890196, 0.882353, 0.870588, 1),\
transparent=(1, 1, 1, 1), transparency=1.0, double_sided=True)
effect2 = material.Effect("material_0_1_0-effect", [surface, sampler2d], "lambert", emission=(0.0, 0.0, 0.0, 1),\
ambient=(0.0, 0.0, 0.0, 1), diffuse=map1, transparent=map1, transparency=0.0, double_sided=True)
effect3 = material.Effect("material_0_1_1-effect", [surface2, sampler2d_2], "lambert", emission=(0.0, 0.0, 0.0, 1),\
ambient=(0.0, 0.0, 0.0, 1), diffuse=map2, transparent=map2, transparency=0.0, double_sided=True)
mat1 = material.Material("material_0_0ID", "material_0_0", effect1)
mat2 = material.Material("material_0_1_0ID", "material_0_1_0", effect2)
mat3 = material.Material("material_0_1_1ID", "material_0_1_1", effect3)
mesh.effects.append(effect1)
mesh.effects.append(effect2)
mesh.effects.append(effect3)
mesh.materials.append(mat1)
mesh.materials.append(mat2)
mesh.materials.append(mat3)
mesh.images.append(image)
mesh.images.append(image2)
#red x-axis
#green z-axis
#blue y-axis
h = 7.0
b = 7.0
w = 10.0
m1position = [0, 0, 0, 0, b, 0, w, b, 0, w, 0, 0, 0, 0, h, 0, b, h, w, b, h, w, 0, h]
m1normal = [1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1]
m1uv = [1, 1, 0, 0, 1, 0, 0, 1]
m1position_src = source.FloatSource("mesh1-geometry-position", np.array(m1position), ('X', 'Y', 'Z'))
m1normal_src = source.FloatSource("mesh1-geometry-normal", np.array(m1normal), ('X', 'Y', 'Z'))
m1uv_src = source.FloatSource("mesh1-geometry-uv", np.array(m1uv), ('S', 'T'))
geom = geometry.Geometry(mesh, "mesh1-geometry", "mesh1-geometry", [m1position_src, m1normal_src, m1uv_src])
geom1 = geometry.Geometry(mesh,"mesh1-geometry1","mesh1-geometry1",[m1position_src, m1normal_src, m1uv_src])
geom2 = geometry.Geometry(mesh,"mesh1-geometry2","mesh1-geometry2",[m1position_src,m1normal_src, m1uv_src])
input_list = source.InputList()
input_list.addInput(0, 'VERTEX', "#mesh1-geometry-position")
input_list1 = source.InputList()
input_list1.addInput(0, 'VERTEX', "#mesh1-geometry-position")
input_list1.addInput(1, 'TEXCOORD', "#mesh1-geometry-uv", set="0")
input_list2 = source.InputList()
input_list2.addInput(0, 'VERTEX', "#mesh1-geometry-position")
input_list2.addInput(1, 'TEXCOORD', "#mesh1-geometry-uv", set="0")
indices1 = np.array([0, 1, 2, 2, 3, 0, 0, 1, 5, 5, 0, 4, 7, 2, 6, 2, 7, 3, 4, 3, 7, 3, 4, 0])
indices2 = np.array([2, 1, 1, 2, 5, 0, 5, 0, 6, 3, 2, 1])
indices3 = np.array([6,1,5,2,4,0,4,0,7,3,6,1])
triset1 = geom.createTriangleSet(indices1, input_list, "material_0_0")
triset2 = geom1.createTriangleSet(indices2, input_list1, "material_0_1_0")
triset3 = geom2.createTriangleSet(indices3, input_list2, "material_0_1_1")
geom.primitives.append(triset1)
geom1.primitives.append(triset2)
geom2.primitives.append(triset3)
mesh.geometries.append(geom)
mesh.geometries.append(geom1)
mesh.geometries.append(geom2)
matnode1 = scene.MaterialNode("material_0_0", mat1, inputs=[])
matnode2 = scene.MaterialNode("material_0_1_0", mat2, inputs=[])
matnode3 = scene.MaterialNode("material_0_1_1", mat3, inputs=[])
geomnode = scene.GeometryNode(geom, [matnode1])
geomnode1 = scene.GeometryNode(geom1, [matnode2])
geomnode2 = scene.GeometryNode(geom2, [matnode3])
node = scene.Node("Model", children=[geomnode, geomnode1, geomnode2])
myscene = scene.Scene("SketchUpScene", [node])
mesh.scenes.append(myscene)
mesh.scene = myscene
mesh.write("untitled.dae")
Any doubts are welcomed..!! :)
