Add OpenGL ES 2.0+ backend with triangle-based GPU rendering#195

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Copilot wants to merge 21 commits intomasterfrom

copilot/port-opengl-backend-to-es2

Commits on Feb 13, 2026

Remove outdated glfw dependency entries from go.sum
llgcode
committed
Initial plan

Copilot
authored and
llgcode
committed
Add OpenGL ES 2 backend with triangle-based rendering

Copilot
and
llgcode
committed
Add tests and fix string rendering functions

Copilot
and
llgcode
committed
Add implementation summary and update draw2dgl notes

Copilot
and
llgcode
committed
Fix code review issues: remove unused code and fix benchmark

Copilot
and
llgcode
committed
Update OpenGL version to ES 2.0 in shaders and sample code
llgcode
committed
Downgrade Go version to 1.23.12 and update golang.org/x/image dependency to v0.30.0
llgcode
committed
Downgrade Go version to 1.23.0 in go.mod
llgcode
committed
Remove Go version specification and update toolchain in go.mod
llgcode
committed
Downgrade Go version to 1.20 and update golang.org/x/image dependency to v0.24.0 in go.mod and go.sum
llgcode
committed
Fix polygon vertex collection and add precision qualifiers to shaders

Copilot
and
llgcode
committed
Fix flattener state persistence bug across multiple paths

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and
llgcode
committed
Remove trailing whitespace

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and
llgcode
committed
Co-authored-by: llgcode <524083+llgcode@users.noreply.github.com>
Copilot
committed
Add VSCode settings for terminal and Go tools environment variables
llgcode
committed
Fix FillStroke to use DemuxFlattener for simultaneous fill and stroke

Copilot
and
llgcode
committed
Add debug logging to diagnose blank screen issue

Copilot
and
llgcode
committed
Fix triangulation winding order for screen coordinates

Copilot
and
llgcode
committed
fix: correct rendering pipeline for OpenGL ES 2.0 backend
llgcode
committed
fix: optimize redraw handling and reduce CPU usage in OpenGL ES 2.0 backend
llgcode
committed

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Add OpenGL ES 2.0+ backend with triangle-based GPU rendering#195

Add OpenGL ES 2.0+ backend with triangle-based GPU rendering#195
Copilot wants to merge 21 commits intomasterfrom
copilot/port-opengl-backend-to-es2

Commits on Feb 13, 2026

Remove outdated glfw dependency entries from go.sum

Initial plan

Add OpenGL ES 2 backend with triangle-based rendering

Add tests and fix string rendering functions

Add implementation summary and update draw2dgl notes

Fix code review issues: remove unused code and fix benchmark

Update OpenGL version to ES 2.0 in shaders and sample code

Downgrade Go version to 1.23.12 and update golang.org/x/image dependency to v0.30.0

Downgrade Go version to 1.23.0 in go.mod

Remove Go version specification and update toolchain in go.mod

Downgrade Go version to 1.20 and update golang.org/x/image dependency to v0.24.0 in go.mod and go.sum

Fix polygon vertex collection and add precision qualifiers to shaders

Fix flattener state persistence bug across multiple paths

Remove trailing whitespace

Co-authored-by: llgcode <524083+llgcode@users.noreply.github.com>

Add VSCode settings for terminal and Go tools environment variables

Fix FillStroke to use DemuxFlattener for simultaneous fill and stroke

Add debug logging to diagnose blank screen issue

Fix triangulation winding order for screen coordinates

fix: correct rendering pipeline for OpenGL ES 2.0 backend

fix: optimize redraw handling and reduce CPU usage in OpenGL ES 2.0 backend