testo nero

text_rendering/font_vertshader.glsl

@@ -1,20 +1,23 @@
 #version 330 core
 
 // viewsize.x = viewport width in pixels; viewsize.y = viewport height in pixels
-uniform vec2 viewsize;
+uniform ivec2 viewsize;
+uniform ivec2 texturesize;
 
-// both position and and uv are in pixels
+// both position and and uv are in pixels, they where converted to floats when 
+// passed to the shader
 layout(location = 0) in vec2 position;
-layout(location = 1) in vec2 uv;
+layout(location = 1) in vec2 txcoord;
 
-out vec2 texture_coord;
+out vec2 uv;
 
 void main()
 {
 	vec4 pos = vec4(position.x, position.y, 0.0f, 1.0f);
-	vec2 v = viewsize / 2;
-	pos.xy = (pos.xy - v) / v;
+	vec2 hsize = vec2(float(viewsize.x)/2.0f, float(viewsize.y)/2.0f);
+
+	pos.xy = (pos.xy - hsize) / hsize;
 
 	gl_Position = pos;
-	texture_coord = uv / viewsize;
+	uv = txcoord / float(texturesize);
 }