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shadertree: fix position scatter and prevent warning in shader

This commit is contained in:
Mathieu Virbel 2011-02-22 14:01:57 +01:00
parent 8994a84dcd
commit 6f147c95a0
1 changed files with 3 additions and 2 deletions
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5
examples/shader/shadertree.py
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@ -91,7 +91,7 @@ void main(void)
shader_monochrome = header + '''
void main() {
vec3 rgb = texture2D(texture0, tex_coord0);
vec4 rgb = texture2D(texture0, tex_coord0);
float c = (rgb.x + rgb.y + rgb.z) * 0.3333;
gl_FragColor = vec4(c, c, c, 1.0);
}
@ -185,8 +185,9 @@ class ShaderTreeApp(App):
pos_hint={'center_x': .25, 'center_y': .5})
sw.add_widget(btn)
center = Window.width * 0.75 - 256, Window.height * 0.5 - 256
scatter = ScatterImage(source='tex3.jpg', size_hint=(None, None),
pos_hint={'center_x': .75, 'center_y': .5})
size=(512, 512), pos=center)
sw.add_widget(scatter)
# create a button outside the shader widget, to change the current used