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WebGL programs consist of control code written in JavaScript, and shader code written in OpenGL ES Shading Language (GLSL ES, sometimes referred to as ESSL), a language similar to C or C++. WebGL code is executed on a computer's GPU.
A procedural image made in Shadertoy with distance fields, modeled, shaded, lit and rendered in realtime. Shadertoy is an online community and platform for computer graphics professionals, academics [1] and enthusiasts who share, learn and experiment with rendering techniques and procedural art through GLSL code.
Originally, this functionality was achieved by writing shaders in ARB assembly language – a complex and unintuitive task. The OpenGL ARB created the OpenGL Shading Language to provide a more intuitive method for programming the graphics processing unit while maintaining the open standards advantage that has driven OpenGL throughout its history.
shader-db is a collection of about 20,000 shaders gathered from various computer games and benchmarks as well as some scripts to compile these and collect some statistics. Shader-db is intended to help validate an optimization. It was noticed that an unexpected number of shaders are not hand-written but generated.
This shader works by replacing all light areas of the image with white, and all dark areas with a brightly colored texture. In computer graphics, a shader is a computer program that calculates the appropriate levels of light, darkness, and color during the rendering of a 3D scene—a process known as shading.
It is backwards compatible with OpenGL ES 2.0, and partially compatible with WebGL 2.0, [15] as WebGL 2.0 was designed to have a high degree of interoperability with OpenGL ES 3.0. [16] The current version of the OpenGL ES 3.0 standard is 3.0.6, released in November 2019. [17] New functionality in the OpenGL ES 3.0 specification includes:
Open-source WebGL framework based on OpenSceneGraph concepts. PlayCanvas: JavaScript: No Yes Yes Yes Partially Native (1.0 and 2.0) Yes DAE, DXF, FBX, glTF, OBJ No MIT (engine), proprietary (cloud-hosted editor) Open-source 3D game engine alongside a proprietary cloud-hosted creation platform that allows for editing via a browser-based interface.
OpenGL (Open Graphics Library [4]) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics.The API is typically used to interact with a graphics processing unit (GPU), to achieve hardware-accelerated rendering.