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C-/C++-Quelltext

void render(){
    mat4 modelview, projection;

    glEnable(GL_DEPTH_TEST);
    glEnable(GL_CULL_FACE);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    glClearColor(0.0, 0.0, 0.0, 0.0);
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glViewport(viewport[0].x, viewport[0].y, viewport[1].x, viewport[1].y);
    
    projection.setIdentity();
    projection.ortho(int(viewport[0].x), int(viewport[1].x), int(viewport[0].y), int(viewport[1].y), -1, 1);

    // Shader
    shader[0]->bindShader();
    shader[0]->sendUniform4x4("projection_matrix", projection.getArray());
    shader[0]->sendUniform("texture0", 0);

    // Karte rendern
    modelview = tilemap->getModelview();
    shader[0]->sendUniform4x4("modelview_matrix", modelview.getArray());
    tilemap->renderBuffer();

    // Spieler rendern
    modelview = character->getModelview();
    shader[0]->sendUniform4x4("modelview_matrix", modelview.getArray());
    character->renderBuffer();
        
    glutSwapBuffers();
}

C-/C++-Quelltext

void Tilemap::renderBuffer(){       
    glBindTexture(GL_TEXTURE_2D, m_texture->getTextureID());
    
    glEnableVertexAttribArray(0);
    glEnableVertexAttribArray(1);
    
    glBindBuffer(GL_ARRAY_BUFFER, m_vertexBuffer);
    glVertexAttribPointer((GLint)0, 3, GL_FLOAT, GL_FALSE, 0, 0);               
    glBindBuffer(GL_ARRAY_BUFFER, m_texCoordBuffer);
    glVertexAttribPointer((GLint)1, 2, GL_FLOAT, GL_FALSE, 0, 0);
        
    glDrawArrays(GL_TRIANGLES, 0, m_vertices.size()/3);
    
    glDisableVertexAttribArray(0);
    glDisableVertexAttribArray(1);
}

C-/C++-Quelltext

#version 150

uniform mat4 modelview_matrix;
uniform mat4 projection_matrix;

in vec3 a_Vertex;
in vec2 a_TexCoord;
out vec2 texCoord0;

void main(void){
    texCoord0 = a_TexCoord;
    gl_Position = projection_matrix*modelview_matrix*vec4(a_Vertex, 1.0);
    gl_Position.z = a_Vertex.z; // depth test
}

C-/C++-Quelltext

projection.setIdentity();
projection.ortho(int(viewport[0].x), int(viewport[1].x), int(viewport[0].y), int(viewport[1].y), -1, 1);