360°全景视频播放器的实现原理

2020-02-27 58浏览

1.360° HTY360Player
2.pyTracer pySmallPT pySmallPPM ray tracing path tracing Progressive Photon Mapping
3.—OpenGL Shader : Renderman
4.—OpenGL Shader : Renderman
5.HTY360Player Facebook 360 Videos YouTube 360° Videos
6.
7.HTY360Playerhttp://fir.im/8yln
8.—> Shader
9.HTY360Player • • iOS HTY360Player github.com/hanton/HTY360Player) OpenGL (https://Android Web
10.
11.1. 2. OpenGL 3. 4. 5. YCbCr RGB
12.1/5
13.API kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange : YUV (analog encoding) Y’CbCr (digital encoding) : 420
14.OpenGL 2/5
15.OpenGL
16.3/5
17.Vertex Shader The Vertex Shader is the programmable Shader stage in the rendering pipeline that handles the processing of individual vertices. Vertex shaders typically perform transformations to post-projection space, for consumption by the Vertex Post-Processing stage. : WiKi
18.3D int ESUTIL_API esGenSphere(int numSlices, float radius, GLfloat ** vertices, GLfloat ** normals, GLfloat ** texCoords, GLuint ** indices)
19.YCbCr RGB 4/5
20.YCbCr RGB Fragment Shader A Fragment Shader is the Shader stage that will processes a Fragment generated by the Rasterization into a set of colors and a single depth value. The output of a fragment shader is a depth value, a possible stencil value (unmodified by the fragment shader), and zero or more color values to be potentially written to the buffers in the current framebuffers. : WiKi
21.YUV420 -> RBG : YUV (analog encoding) Y’CbCr (digital encoding) : 420
22.5/5
23.glDrawElements GLKViewController - (void)update - (void)glkView:(GLKView*)viewdrawInRect:(CGRect)rect
24.OpenGL Shader (Attributes & Uniform)
25.Google VR Nokia OZO Facebook Surround 360 Gear 360
26.Q&A
27.