Use a single default shader for all meshes.

* data/shaders/default-fragment.glsl: New file.
* data/shaders/default-vertex.glsl: New file.
* data/shaders/font-fragment.glsl: Delete.
* data/shaders/font-vertex.glsl: Delete.
* data/shaders/sprite-fragment.glsl: Delete.
* data/shaders/sprite-vertex.glsl: Delete.
* examples/common.scm: Remove call to enable-sprites.
* sly/font.scm (font-shader): Delete.
  (enable-fonts): Remove shader loading.
  (make-label): Use default shader.
* sly/shape.scm (make-cube): Make texture and shader optional keyword
  arguments.
* sly/sprite.scm (sprite-shader, enable-sprites): Delete.
  (make-sprite): Make shader an optional keyword argument.

1 files changed, 0 insertions, 8 deletions

diff --git a/data/shaders/sprite-fragment.glsl b/data/shaders/sprite-fragment.glsl
deleted file mode 100644
index 3dd10f1..0000000
--- a/data/shaders/sprite-fragment.glsl
+++ /dev/null
@@ -1,8 +0,0 @@
-#version 120
-
-uniform sampler2D color_texture;
-uniform vec4 color;
-
-void main (void) {
-    gl_FragColor = texture2D(color_texture, gl_TexCoord[0].st) * color;
-}