About PrimitivesExample

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Learning Objectives

This openFrameworks Example is designed to demonstrate how to draw basic 3D shapes.

After studying this example, you'll understand how to draw basic 3D form in various states, change the texture, and adjust how the texture is mapped to the geometry.

In the code, pay attention to:

• drawing primitives as wireframes and solids, with primitive.drawWireframe(); and primitive.draw(); .
• drawing them with their normals and axis, with primitive.drawNormals(); and primitive.drawAxes();.
• drawing them at various resolutions, with primitive.setResolution(); .
• adding a texture to the primitives both from a loaded file and dynamically from a camera, with texture.getTexture().bind(); and primitive.mapTexCoordsFromTexture( texture.getTexture() );.
• altering how the texture is mapped to the geometry, with primitive.mapTexCoords(0, 0, 5, 5); .

Expected Behavior

When launching this app, you should see

• 6 primitive shapes in a grid.
• a text overlay with instructions.

Instructions for use:

• Try various taps to alter the drawing state. Refer to the overlay on the application to know how to tap.