materialPBRAdvancedExample

Learning Objectives

This example demonstrates how to use setup a multiple PBR materials and scene with a camera. It demonstrates the use of a cube map with textures and a light with shadows. It also shows dynamic materials via shaders on non-textured meshes. And a material with textures and a clear coat.

You will learn how to..

• setup a cube map and load a HDR image into it.
• configure materials for PBR
• use an ofEasyCam
• use a material and change its properties inside begin()
• use a material load a shader to replace its main function to change output without recompiling.

Pay attention to..

• the define light.beginShadowDepthPass(j)
• renderScene() function and its use with light shadows.
• the reloadShader(); function and how it updates the shader on the material used to render the logo mesh.

Expected Behavior

When launching this app, you should see an OF logo and 2 spheres circling it; one looking like plywood with gloss and another a black metal.

Instructions for use:

• Press d to show debug information, ie light frustum.
• Click and drag to move camera.
• Try launching the app and then editing the main.frag shader in bin/data/shaders/main.frag; Then select the app window and press r to reload the shader and view changes.
• Try commenting out cubeMap.load( "dancing_hall_2k.exr", 512 ); in ofApp::setup();

Other classes used in this file

This Example uses the following classes:

• ofEasyCam
• ofMaterial
• ofCubeMap
• ofMesh