(glctx gl.Context, sz size.Event)
| 126 | } |
| 127 | |
| 128 | func onPaint(glctx gl.Context, sz size.Event) { |
| 129 | glctx.ClearColor(1, 0, 0, 1) |
| 130 | glctx.Clear(gl.COLOR_BUFFER_BIT) |
| 131 | |
| 132 | glctx.UseProgram(program) |
| 133 | |
| 134 | green += 0.01 |
| 135 | if green > 1 { |
| 136 | green = 0 |
| 137 | } |
| 138 | glctx.Uniform4f(color, 0, green, 0, 1) |
| 139 | |
| 140 | glctx.Uniform2f(offset, touchX/float32(sz.WidthPx), touchY/float32(sz.HeightPx)) |
| 141 | |
| 142 | glctx.BindBuffer(gl.ARRAY_BUFFER, buf) |
| 143 | glctx.EnableVertexAttribArray(position) |
| 144 | glctx.VertexAttribPointer(position, coordsPerVertex, gl.FLOAT, false, 0, 0) |
| 145 | glctx.DrawArrays(gl.TRIANGLES, 0, vertexCount) |
| 146 | glctx.DisableVertexAttribArray(position) |
| 147 | |
| 148 | fps.Draw(sz) |
| 149 | } |
| 150 | |
| 151 | var triangleData = f32.Bytes(binary.LittleEndian, |
| 152 | 0.0, 0.4, 0.0, // top left |
no test coverage detected