There's one big drawback to the technique presented here. There is no support for shadows yet, so the projected texture will shine right through any objects in the scene and appear on objects that are behind them (with respect to the projector). In later recipes, we will look at some examples of techniques for handling shadows that could help solve this problem.
- Title Page
- Copyright and Credits
- Packt Upsell
- Contributors
- Preface
- Getting Started with GLSL
- Working with GLSL Programs
- Introduction
- Sending data to a shader using vertex attributes and vertex buffer objects
- Getting a list of active vertex input attributes and locations
- Sending data to a shader using uniform variables
- Getting a list of active uniform variables
- Using uniform blocks and uniform buffer objects
- Using program pipelines
- Getting debug messages
- Building a C++ shader program class
- The Basics of GLSL Shaders
- Lighting and Shading
- Using Textures
- Introduction
- Applying a 2D texture
- Applying multiple textures
- Using alpha maps to discard pixels
- Using normal maps
- Parallax mapping
- Steep parallax mapping with self shadowing
- Simulating reflection with cube maps
- Simulating refraction with cube maps
- Applying a projected texture
- Rendering to a texture
- Using sampler objects
- Diffuse image-based lighting
- Image Processing and Screen Space Techniques
- Introduction
- Applying an edge detection filter
- Applying a Gaussian blur filter
- Implementing HDR lighting with tone mapping
- Creating a bloom effect
- Using gamma correction to improve image quality
- Using multisample anti-aliasing
- Using deferred shading
- Screen space ambient occlusion
- Configuring the depth test
- Implementing order-independent transparency
- Using Geometry and Tessellation Shaders
- Shadows
- Using Noise in Shaders
- Particle Systems and Animation
- Using Compute Shaders
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