Hi Hernan,
I just added two new examples, UFFIOpenGLOffscreenSamples >> #triangle and
UFFIOpenGLOffscreenSamples >> #quad (using your vertices). I tested it on
Linux and on OS X.
triangle
"
self new triangle
"
| context gl fb colorProgram vertexBuffer |
context := UFFIOpenGLContext new.
colorProgram := self colorProgramFor: context.
vertexBuffer := self immutableVertexBufferFor: context
withPackedFloats: {
" x y z r g b a "
{ -0.5 . 0.5 . 0.0 . 1.0 . 0.0 . 0.0 . 1.0 }.
{ 0.5 . 0.5 . 0.0 . 0.0 . 1.0 . 0.0 . 1.0 }.
{ 0.0 . -0.5 . 0.0 . 0.0 . 0.0 . 1.0 . 1.0 }.
}.
gl := context gl.
fb := context offscreenBufferExtent: 640@480.
context asCurrentDo: [
fb activate.
gl
viewport_x: 0 y: 0 width: 640 height: 480;
clearColor_red: 0.0 green: 0.0 blue: 0.0 alpha: 1.0;
clear: GL_COLOR_BUFFER_BIT;
useProgram: colorProgram validHandle;
bindBuffer_target: GL_ARRAY_BUFFER buffer: vertexBuffer
validHandle.
self activateDefaultVertexLayoutOn: context.
gl drawArrays_mode: GL_TRIANGLES first: 0 count: 3
].
fb asForm asMorph openInWindow.
Best regards,
Ronie
El mar., 13 nov. 2018 a las 1:23, Ben Coman (<[email protected]>)
escribió:
>
>
> On Tue, 13 Nov 2018 at 03:37, Hernán Morales Durand <
> [email protected]> wrote:
>
>> Hi.
>>
>> I tried to get an OpenGL MWE from
>> https://github.com/ronsaldo/uffi-opengl in both Windows 8.1 and MacOS
>> without luck. What I tried so far is to render a simple figure in a
>> new window, adding this method to UFFIOpenGLOffscreenSamples:
>>
>
> You may also be interested in "Use Metal instead of OpenGL for the main VM
> Window in OS X" ...
> https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/306
>
> cheers -ben
>
