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Chico APCG 330 - Stained Glass

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By: Cory CofranAPCG 330Instructor: Steinback•Create a good quality color image. (make sure it LOOKS like a stained glass window)•In Photoshop (or Mirage) create a greyscale of the image. This is going to be for the transparency. Label this StainedGlassTrans• Again in Photoshop (or Mirage) invert the greyscaleimage, this will be your bump map and also the leading for the window. Label This StainedGlassLeadBump• In Modeler, create a box. It will help that you keep the appropriate dimensions of your image. The dimensions of this image is 639x578, so try to keep that ratio.• Also make the depth no deeper than 2” or else it won’t be realistic.• Create another box perpendicular to the window, this is going to be the surface the stained glass shines down on.• Hit “q” and label the surface of the object “StainedGlass”, then save the object and send it over to layout.• In Layout• First set up your scene; you are going to want to have a spotlight (more on that later) behind the stained glass and facing toward the ground surface.• Then put a “point” light right near the spotlight (more on that later)• Then set up the camera how you would want it to view your stained glass.• Now comes the fun part.• Go into surface editor (F5) and highlight the “Stained Glass” surface from the list.• Click on the (T) texture button next to the color option which will bring up a window.• Set the projection to planar. And in the image box place your stained glass color image.• Make sure it is on the Z axis and click “automatic sizing.• Hit “Use Texture”• Next move to the “Diffuse” Texture button.• In the next window set the Blending Mode to Alpha, this will be your “alpha channel”• Then set the projection to planar along the Z axis. And then load the StainedGlassLeadBumpimage.• Be sure to hit “automatic sizing.”• Hit use texture.• Next hit the Translucency Texture Button.• In the new window repeat the exact previous steps that was used in the Diffuse texture editor.• Hit use texture• Now finally, on the main surface editor window you want to enter in these settings:– Luminosity 0.0%– Diffuse 20.0%–Specularity0.0%– Glossiness 40.0%– Reflection 0.0%– Transparency 70.0%– Refraction Index 1.0– Translucency 100.0%– Bump 100.0% – Be sure the smoothing is also turned on.• Close all the windows that are open.• This is where we do some tricks and time savers.• Click on the light properties window at the bottom of the screen and make sure the spot light is highlighted.• In the light properties window make sure the light intensity is set to 100%• Be sure to turn on VOLUMETRIC LIGHTING.• At the bottom of the window there should be “projection image” click that and load your stained glass color image. This is going to cause the light to project that image on anything it hits. This is what is called a “Gel” image.• You will now notice that the cone of your spotlight has a circle around it, this represents your projection image.• You want to position it at the appropriate angle and distance so that the circle is shining a little bit past the floor, this will show you where your image is projecting and also how large you want the projection to be. My example has:– Spotlight Cone Angle 15.5 degrees– Spotlight Soft Edge Angle 5.0 degrees– You will want to play around with it to get it to where you want it.• With the light properties window still open click on the objects tab.• There will be a list of all the objects that are in your scene.• The trick here is that you click to the left of everything you want the light source to exclude.• So we want to exclude the stained glass window so it will shine through it with ease and it will just shine down on the floor.• Now go back to the main light properties window and highlight the point light as your current light.• The only difference with this light is that you do not want volumetric lighting on. That is what the spotlight is for.• Then under the objects tab you want to exclude the floor this time. This will have the stained glass window be illuminated from behind to create a nice effect.• You now have a stained glass window!• Be sure to set your camera settings for a nice resolution.• Enable ANTIALIASING• Then in your render options be sure to set your render display to image viewer• Also in your render options enable:– Ray Trace Shadows– Ray Trace Transparency– Ray Trace Reflection– Ray Trace RefractionThis should be your finished stained


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