Exhibit #3: Getting Info about WebGL 2 Context

Parameters

Name	Value
UNMASKED_VENDOR_WEBGL	Google Inc. (Google)
UNMASKED_RENDERER_WEBGL	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (LLVM 10.0.0) (0x0000C0DE)), SwiftShader driver)
MAX_TEXTURE_SIZE	8192
MAX_CUBE_MAP_TEXTURE_SIZE	16384
MAX_RENDERBUFFER_SIZE	8192
MAX_VERTEX_TEXTURE_IMAGE_UNITS	32
MAX_TEXTURE_IMAGE_UNITS	32
MAX_COMBINED_TEXTURE_IMAGE_UNITS	64
MAX_VERTEX_ATTRIBS	16
MAX_VERTEX_UNIFORM_VECTORS	4096
MAX_FRAGMENT_UNIFORM_VECTORS	4096
MAX_VARYING_VECTORS	31
MAX_3D_TEXTURE_SIZE	2048
MAX_COLOR_ATTACHMENTS	8
MAX_DRAW_BUFFERS	8

Extensions

EXT_clip_control
EXT_color_buffer_float
EXT_color_buffer_half_float
EXT_conservative_depth
EXT_depth_clamp
EXT_float_blend
EXT_polygon_offset_clamp
EXT_texture_compression_bptc
EXT_texture_compression_rgtc
EXT_texture_filter_anisotropic
EXT_texture_mirror_clamp_to_edge
EXT_texture_norm16
NV_shader_noperspective_interpolation
OES_draw_buffers_indexed
OES_sample_variables
OES_shader_multisample_interpolation
OES_texture_float_linear
OVR_multiview2
WEBGL_clip_cull_distance
WEBGL_compressed_texture_astc
WEBGL_compressed_texture_etc
WEBGL_compressed_texture_etc1
WEBGL_compressed_texture_s3tc
WEBGL_compressed_texture_s3tc_srgb
WEBGL_debug_renderer_info
WEBGL_debug_shaders
WEBGL_lose_context
WEBGL_multi_draw
WEBGL_polygon_mode
WEBGL_stencil_texturing

What We Did

The same thing as what we did in the last exhibit, but for WebGL 2.
Note that WebGL 2 support all the parameters that WebGL suppport, but it has some extra parameters.
- MAX_3D_TEXTURE_SIZE
- MAX_COLOR_ATTACHEMENTS
- MAX_DRAW_BUFFERS
Of course, we did not list all of it.
We also see that WebGL 2 support fewer extensions than WebGL does. This is because many extensions that WebGL supported became part of WebGL 2 specification.