47 lines
1.4 KiB
Diff
47 lines
1.4 KiB
Diff
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From 6b675d1fbb130480725ae5ed3f3bdd995e9b336a Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
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Date: Fri, 17 Jul 2020 05:00:04 +0200
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Subject: [PATCH 1/2] GL_POINT_SPRITE is only available for Compatibility
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Profiles and GLES 1.0
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---
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Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx b/Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx
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index 6cd90e0306..7b834fa6e5 100644
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--- a/Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx
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+++ b/Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx
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@@ -1126,22 +1126,28 @@ void vtkOpenGLContextDevice2D::DrawPointSprites(
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}
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// We can actually use point sprites here
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+#ifdef GL_POINT_SPRITE
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if (this->RenderWindow->IsPointSpriteBugPresent())
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{
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glEnable(GL_POINT_SPRITE);
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glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
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}
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+#endif
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+#ifdef GL_POINT_SPRITE_COORD_ORIGIN
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glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT);
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+#endif
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glDrawArrays(GL_POINTS, 0, n);
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// free everything
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cbo->ReleaseGraphicsResources(this->RenderWindow);
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+#ifdef GL_POINT_SPRITE
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if (this->RenderWindow->IsPointSpriteBugPresent())
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{
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glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_FALSE);
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glDisable(GL_POINT_SPRITE);
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}
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+#endif
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if (sprite)
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{
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--
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2.27.0
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