tuto9_textures.glsl

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#version 330
 
#ifdef VERTEX_SHADER
layout(location= 0) in vec3 position;
layout(location= 1) in vec2 texcoord;
 
uniform mat4 mvpMatrix;
 
out vec2 vertex_texcoord;
 
void main( )
{
    gl_Position= mvpMatrix * vec4(position, 1);
    vertex_texcoord= texcoord;
}
 
#endif
 
 
#ifdef FRAGMENT_SHADER
out vec4 fragment_color;
 
in vec2 vertex_texcoord;
 
uniform sampler2D texture0;
uniform sampler2D texture1;
 
void main( )
{
    vec4 color0= texture(texture0, vertex_texcoord);
    vec4 color1= texture(texture1, vertex_texcoord);
    
    fragment_color= color0 * color1;
}
 
#endif