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Sohu Tech Products
Sohu Tech Products
Apr 26, 2023 · Mobile Development

OpenGL ES Live Whiteboard Demo: Multi‑Channel Rendering vs Multi‑Texture Techniques

This article introduces a live‑whiteboard demo built with OpenGL ES for iOS and Android, explains the implementation of multi‑channel rendering and multi‑texture approaches, compares their performance and flexibility, and provides complete GLSL and OpenGL code snippets for developers.

AndroidLive WhiteboardMulti-Channel Rendering
0 likes · 9 min read
OpenGL ES Live Whiteboard Demo: Multi‑Channel Rendering vs Multi‑Texture Techniques
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Oct 17, 2022 · Game Development

Practical Guide to Texture Mapping in OpenGL ES on Android: Passing Bitmap to Native Layer and Rendering

This tutorial explains how to transfer a Bitmap from Java to the native layer using the NDK, retrieve its pixel data with jnigraphics, create and configure an OpenGL texture, set up vertex and fragment shaders with proper texture coordinates, handle Y‑axis flipping on Android, and finally blend multiple textures for advanced rendering effects.

Android NDKGraphics ProgrammingMulti-Texture
0 likes · 20 min read
Practical Guide to Texture Mapping in OpenGL ES on Android: Passing Bitmap to Native Layer and Rendering