![]() ![]() When backFaceCulling is false the back faces are not removed during rendering, so they can be seen through the transparent areas of the front faces. However, you cannot see the images on the back faces as they have been culled (or removed). Looking at the images below, when the material property backFaceCulling is true you can see that the transparent areas around theĭog are still transparent, you can see the background through them. In most cases, this is helpful in maintaining the highest possible performance. In Babylon.js the default setting is, as you might expect, set to true. Usually there is no need to draw the back face of a cube, or other object,Īs it will be hidden by the front face. This is a method for efficiently drawing the 2D rendering of the 3D model. More on creating a texture package Back-Face Culling The advantage of using the texture packer has to be weighed against limitations such as fixed size scaling. Explore the full suite of available lightboxes in the Components section. In this case it can be convenient to package the textures. Lightbox.js is a fully responsive, customizable, all-in-one lightbox solution for React with several built-in presets. Some complex scenes will require a large amount of textures for just one material. hasAlpha = true Transparent Background Exampleįor the back faces of the cube to be visible through the transparent areas of the front faces we have to deal with back-face culling. Transparency is achieved by setting a materials alpha property from 0 (invisible) to 1 (opaque). Use of Ambient Color Transparent Color Example When a scene ambient color component is set to 0, for example red, then whatever the value for red in the material ambient color it will have no effect. The scene ambient color, which must be present, is white. The first sphere has no ambient color, the middle has red ambient color defined on its material and the one on the right has material with green ambient color. In the image below all spheres are lit by the same hemispheric light, with diffuse red and groundColor green. To white, red, green and blue diffuse spot lights can also be seen in the following image. To give an idea on how the material diffuse color reacts to the diffuse light color the following playground example shows how different color materials react to white, red, green and blue diffuse spot lights. ![]() material = myMaterial Diffuse Color Example ![]()
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