'Stencil buffer' presentation slideshows

Introduction to OpenGL (Part 4)

Introduction to OpenGL (Part 4). Ref: OpenGL Programming Guide (The Red Book). Part 1 Introduction Geometry Viewing Light & Material Display List. Part 2 Alpha Channel Polygon Offset Part 3 Image Texture Mapping Part 4 Framebuffers Selection & Feedback. Topics. OpenGL.

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Pre-lighting in Resistance 2

Pre-lighting in Resistance 2. Mark Lee mlee@insomniacgames.com. Outline. Our past approach to dynamic lights. Deferred lighting and pre-lighting. Pre-lighting stages. Implementation tips. Pros and cons. The problem (a.k.a. multipass lighting). for each dynamic light

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Advanced OpenGL Technique

Advanced OpenGL Technique. Jian Huang, CS 594, Fall 2002 Redbook: Chapters 6.1, 9.5, 9.6, 10. List of Topics. Blending Multi-texturing Frame buffers Stencil buffer A-buffer (accumulation buffer) Fragment Tests. Alpha: the 4 th Color Component. Measure of Opacity

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CS-378: Game Technology

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Basic Shadow Methods

Basic Shadow Methods. Jim X. Chen George Mason University. Light source. Light. Creator. Receiver. Shadow. Observation: Shadows are places light does not reach. Light source. Creator and receiver. Creator. Receiver. Definitions. Light sources Shadow creator(occluder)s and receivers.

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OPENGL

OPENGL. Return of the Survival Guide. Buffers. Buffers. OpenGL holds the buffers in a coordinate system such that the origin is the lower left corner. (0,0). Color Buffer. The image that you see on screen. . Depth Buffer. The depth values of the image. Stencil & Accumulation Buffers.

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Real-Time Rendering

Real-Time Rendering. SPEACIAL EFFECTS Lecture 03 Marina Gavrilova. Brief Outline. Image based Rendering Lens Effects Billboarding Particle Effects Reflection Shadow mapping Edge Effects Volumetric rendering. The Rendering Spectrum.

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Computer Graphics

Lecture 8 Transparency, Mirroring. Computer Graphics. Today. Environment Mapping Mirroring. Environment Maps. Simple yet powerful method to generate reflections Simulate reflections by using the reflection vector to index a spherical texture map at "infinity".

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526 views • 32 slides

A Hierarchical Shadow Volume Algorithm

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CSL 859: Advanced Computer Graphics

CSL 859: Advanced Computer Graphics. Dept of Computer Sc. & Engg. IIT Delhi. Shadow Volumes. Shadow Volumes. Stencil Buffer. Like color/z buffer; one entry per pixel Traditionally a few bits of Z-buffer Stencil value also masks whether to render Render to Stencil Stencil operation

390 views • 25 slides

Multi-Pass Rendering

Multi-Pass Rendering. The pipeline takes one triangle at a time, so only local information, and pre-computed maps, are available Multi-Pass techniques render the scene, or parts of the scene, multiple times Makes use of auxiliary buffers to hold information

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Multi-Pass Rendering

Multi-Pass Rendering. The pipeline takes one triangle at a time, so only local information, and pre-computed maps, are available Multi-Pass techniques render the scene, or parts of the scene, multiple times Makes use of auxiliary buffers to hold information

213 views • 20 slides

Chapter 2

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Stencil Buffer, Shadow Volumes

Stencil Buffer, Shadow Volumes. Soon Tee Teoh CS 134. Stencil Buffer. The Stencil Buffer is another frame buffer, like the Color Buffer, Depth Buffer and Accumulation Buffer.

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Shadow Volume

Shadow Volume. ???. Introduction. Light Position. Mesh Polygon. Shadow Polygon. Top View. Camera. Screen. Side View. Camera View. Pass 1. Clear color buffer and stencil buffer Render the scene with ambient only. Pass 2. Mask color buffer and depth buffer

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Stencil Shadows

Stencil Shadows. Garrett Weng. What are stencil shadows?. Also known as shadow volumes Relies on use of the stencil buffer Create volumes of the shadows Shadows projected onto surfaces of objects Different from shadow mapping. How do we get the shadow volumes?.

303 views • 6 slides