Trivial shaders for Minetest

opengl_fragment.glsl

uniform sampler2D baseTexture;

void main(void)
{
        vec2 uv = gl_TexCoord[0].st;
        vec4 base = texture2D(baseTexture, uv);
        gl_FragColor = vec4(base.rgb * gl_Color.rgb, base.a);
}

opengl_vertex.glsl

uniform mat4 mWorldViewProj;

varying vec3 vPosition;
varying vec3 worldPosition;

void main(void)
{
        gl_TexCoord[0] = gl_MultiTexCoord0;
        gl_Position = mWorldViewProj * gl_Vertex;

        vec4 color;
        color.rgb = clamp(2.0 * gl_Color.rgb, 0.0, 1.0);
        color.a = 1;

        gl_FrontColor = gl_BackColor = color;
}