metaleap / go-opengl

[stale since 2013] lib for creating OpenGL apps of the cross-platform and modern sort (ie. Core profile 3.3+, shader-based, no display lists etc)

go-opengl

Go packages for working with OpenGL. While more or less adequate for general use, they're being developed in conjunction with go:ngine and thus tend to be slightly tweaked, optimized or designed around go:ngine's needs and usage patterns.

core:

A (very) GoGL-like OpenGL binding used by go:ngine.

• includes strictly only GL core profile functionality from version 3.3 onwards (up until 4.3) -- note, this does not mean that a core profile context is required, although it is probably advisable on any current-gen GPU with recent drivers
• no compatibility-profile-only functionality or any that was deprecated or removed at some (any) point
• Init() and "stolen-from-GoGL" utility functions moved to a Util struct: so every exported (non-method) function is a direct CGO binding function. (Just minor cosmetics really.)
• added to Util: ErrorFlags() method
• embeds the following GL extensions right inside the same binding package:
  • EXT_texture_filter_anisotropic
  • EXT_texture_compression_s3tc
  • EXT_texture_sRGB

util:

Based on the above core GL binding package, provides higher-level utility constructs and a few sane lean minimalist wrappers (without going full-on "OO"-overboard).

cmd:

• opengl-minimal-app: a "minimal" program using OpenGL core profile to draw a triangle and a quad, to test the above core GL binding package with GLFW
• gogl-minimal-app: same but with the GoGL (gl43) binding
• gen-opengl-bindings: used to generate the above core GL binding package

go-opengl's Issues

Broken import paths for github.com/metaleap/go-util

During go get github.com/go3d/go-opengl/... got this:

package github.com/go3d/go-opengl/...
        imports github.com/go3d/go-opengl/cmd/gen-opengl-bindings
        imports github.com/go-forks/xmlx
        imports github.com/metaleap/go-util
        imports github.com/metaleap/go-util
        imports github.com/metaleap/go-util: no buildable Go source files in .../gocode/src/github.com/metaleap/go-util
package github.com/go3d/go-opengl/...
        imports github.com/go3d/go-opengl/cmd/gen-opengl-bindings
        imports github.com/go-forks/xmlx
        imports github.com/metaleap/go-util
        imports github.com/metaleap/go-util/io
        imports github.com/metaleap/go-util/io
        imports github.com/metaleap/go-util/io: cannot find package "github.com/metaleap/go-util/io" in any of:
        .../go/src/pkg/github.com/metaleap/go-util/io (from $GOROOT)
        .../gocode/src/github.com/metaleap/go-util/io (from $GOPATH)
package github.com/go3d/go-opengl/...
        imports github.com/go3d/go-opengl/cmd/gen-opengl-bindings
        imports github.com/go-forks/xmlx
        imports github.com/metaleap/go-util
        imports github.com/metaleap/go-util/io
        imports github.com/metaleap/go-util/slice
        imports github.com/metaleap/go-util/slice
        imports github.com/metaleap/go-util/slice: cannot find package "github.com/metaleap/go-util/slice" in any of:
        .../go/src/pkg/github.com/metaleap/go-util/slice (from $GOROOT)
        .../gocode/src/github.com/metaleap/go-util/slice (from $GOPATH)
package github.com/go3d/go-opengl/...
        imports github.com/go3d/go-opengl/cmd/gen-opengl-bindings
        imports github.com/go-forks/xmlx
        imports github.com/metaleap/go-util
        imports github.com/metaleap/go-util/io
        imports github.com/metaleap/go-util/slice
        imports github.com/metaleap/go-util/str
        imports github.com/metaleap/go-util/str
        imports github.com/metaleap/go-util/str: cannot find package "github.com/metaleap/go-util/str" in any of:
        .../go/src/pkg/github.com/metaleap/go-util/str (from $GOROOT)
        .../gocode/src/github.com/metaleap/go-util/str (from $GOPATH)

The packages have been migrated to github.com/go-utils.