scummvm/engines/grim/shaders/grim_dim.vertex
2020-10-07 00:37:20 +02:00

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in vec2 position;
in vec2 texcoord;
uniform vec2 scaleWH;
out vec2 Texcoord;
void main()
{
Texcoord = texcoord;
// Coordinates are [0.0;1.0], transform to [-1.0; 1.0]
vec2 pos = position * scaleWH;
pos.x = pos.x * 2.0 - 1.0;
pos.y = pos.y * 2.0 - 1.0;
gl_Position = vec4(pos, 0.0, 1.0);
}