public void Setup(int cx, int cy)
{
this._cx = cx;
this._cy = cy;
// Version strings
_version.Retrieve();
// Get OpenGL extensions
_extensions.Retrieve();
// Debug callback
_debug_callback.Init();
// to do mesh buffer creator form multi indices mesh
// use in-source wave font file?
float[] attributes =
{
// left
-1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f,
-1.0f, -1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 0.0f,
-1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
// right
1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 2.0f, 0.0f,
1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 2.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 2.0f, 0.0f,
1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 2.0f, 0.0f,
// front
-1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 3.0f, 0.0f,
1.0f, -1.0f, -1.0f, 0.0f, 1.0f, 3.0f, 0.0f,
1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 3.0f, 0.0f,
-1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 3.0f, 0.0f,
// back
1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 4.0f, 0.0f,
-1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 4.0f, 0.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 4.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 4.0f, 0.0f,
// bottom
-1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 5.0f, 0.0f,
1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 5.0f, 0.0f,
1.0f, -1.0f, -1.0f, 1.0f, 1.0f, 5.0f, 0.0f,
-1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 5.0f, 0.0f,
// top
-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 6.0f, 0.0f,
1.0f, -1.0f, 1.0f, 0.0f, 1.0f, 6.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 6.0f, 0.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 6.0f, 0.0f
};
uint[] indices =
{
0, 1, 2, 0, 2, 3, // front
4, 5, 6, 4, 6, 7, // back
8, 9, 10, 8, 10, 11, // left
12, 13, 14, 12, 14, 15, // right
16, 17, 18, 16, 18, 19, // bottom
20, 21, 22, 20, 22, 23 // top
};
// create Vertex Array Object, Array Buffer Object and Element Array Buffer Object
TVertexFormat[] format =
{
new TVertexFormat(0, 0, 3, 0, false),
new TVertexFormat(0, 1, 4, 3, false),
};
_vao = openGLFactory.NewVertexArrayObject();
_vao.AppendVertexBuffer(0, 7, attributes);
_vao.Create(format, indices);
_vao.Bind();
// Create shader program
string vert_shader = @"
#version 460 core
layout (location = 0) in vec3 inPos;
layout (location = 1) in vec4 inAttr;
out vec3 vertPos;
out vec4 vertTex;
out float highlight;
layout (std430, binding = 1) buffer UB_MVP
{
mat4 u_projection;
mat4 u_view;
mat4 u_model;
};
layout (std430, binding = 2) buffer UB_RUBIKS
{
mat4 u_rubiks_model[27];
int u_cube_hit;
int u_side_hit;
};
void main()
{
vec4 tex = inAttr;
int cube_i = gl_InstanceID;
int color_i = int(tex.z + 0.5);
int x_i = cube_i % 3;
int y_i = (cube_i % 9) / 3;
int z_i = cube_i / 9;
if ( color_i == 1 )
tex.z = x_i == 0 ? tex.z : 0.0;
else if ( color_i == 2 )
tex.z = x_i == 2 ? tex.z : 0.0;
else if ( color_i == 3 )
tex.z = y_i == 0 ? tex.z : 0.0;
else if ( color_i == 4 )
tex.z = y_i == 2 ? tex.z : 0.0;
else if ( color_i == 5 )
tex.z = z_i == 0 ? tex.z : 0.0;
else if ( color_i == 6 )
tex.z = z_i == 2 ? tex.z : 0.0;
mat4 model_view = u_view * u_model * u_rubiks_model[cube_i];
vec4 vertex_pos = model_view * vec4(inPos, 1.0);
vertPos = vertex_pos.xyz;
vertTex = tex;
//highlight = tex.z > 0.5 && cube_i == u_cube_hit ? 1.0 : 0.0;
//highlight = tex.z > 0.5 && color_i == u_side_hit ? 1.0 : 0.0;
highlight = tex.z > 0.5 && cube_i == u_cube_hit && color_i == u_side_hit ? 1.0 : 0.0;
gl_Position = u_projection * vertex_pos;
}";
string frag_shader = @"
#version 460 core
in vec3 vertPos;
in vec4 vertTex;
in float highlight;
out vec4 fragColor;
vec4 color_table[7] = vec4[7](
vec4(0.5, 0.5, 0.5, 1.0),
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0),
vec4(0.0, 0.0, 1.0, 1.0),
vec4(1.0, 0.5, 0.0, 1.0),
vec4(1.0, 1.0, 0.0, 1.0),
vec4(1.0, 0.0, 1.0, 1.0)
);
void main()
{
int color_i = int(vertTex.z + 0.5);
vec4 color = color_table[color_i];
color.rgb *= max(0.5, highlight);
fragColor = color;
}";
this._prog = openGLFactory.VertexAndFragmentShaderProgram(vert_shader, frag_shader);
this._prog.Generate();
// matrices
this._view = Matrix4.LookAt(0.0f, -4.0f, 0.0f, 0, 0, 0, 0, 0, 1);
float angle = 70.0f * (float)Math.PI / 180.0f;
float aspect = (float)this._cx / (float)this._cy;
this._projection = Matrix4.CreatePerspectiveFieldOfView(angle, aspect, 0.1f, 100.0f);
// Model view projection shader storage block objects and buffers
this._mvp_data = new TMVP(Matrix4.Identity, this._view, this._projection);
this._mvp_ssbo = openGLFactory.NewStorageBuffer();
this._mvp_ssbo.Create(ref this._mvp_data);
this._mvp_ssbo.Bind(1);
T_RUBIKS_DATA rubiks_data = rubiks_data = new T_RUBIKS_DATA();
this._rubiks_ssbo = openGLFactory.NewStorageBuffer();
this._rubiks_ssbo.Create(ref rubiks_data);
this._rubiks_ssbo.Bind(2);
TLightSource light_source = new TLightSource(new Vector4(-1.0f, -0.5f, -2.0f, 0.0f), 0.2f, 0.8f, 0.8f, 10.0f);
this._light_ssbo = openGLFactory.NewStorageBuffer();
this._light_ssbo.Create(ref light_source);
this._light_ssbo.Bind(3);
this._depth_pack_buffer = openGLFactory.NewPixelPackBuffer();
this._depth_pack_buffer.Create <float>();
// states
GL.Viewport(0, 0, this._cx, this._cy);
//GL.ClearColor(System.Drawing.Color.Beige);
GL.ClearColor(0.2f, 0.3f, 0.3f, 1.0f);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.FrontFace(FrontFaceDirection.Ccw);
GL.CullFace(CullFaceMode.Back);
// controller
var spin = new ModelSpinningControls(
() => { return(this._period); },
() => { return(new float[] { 0, 0, (float)this._cx, (float)this._cy }); },
() => { return(this._view); }
);
spin.SetAttenuation(1.0f, 0.05f, 0.0f);
_controls = new RubiksMouseControlsProxy(spin);
float offset = 2.0f * 1.1f;
float scale = 1.0f / 3.0f;
this._rubiks_cube = new RubiksControls(
() => { return(this._period); },
offset, scale
);
int shuffles = 11;
this._rubiks_cube.Shuffle(shuffles);
double time_s = 1.0;
_rubiks_cube.AnimationTime = time_s;
}
public void Setup(int cx, int cy)
{
this._cx = cx;
this._cy = cy;
// Version strings
_version.Retrieve();
// Get OpenGL extensions
_extensions.Retrieve();
// Debug callback
_debug_callback.Init();
// create Vertex Array Object, Array Buffer Object and Element Array Buffer Object
(float[] attributes, uint[] indices) = new Cube().Create();
TVertexFormat[] format =
{
new TVertexFormat(0, 0, 3, 0, false),
new TVertexFormat(0, 1, 3, 3, false),
//new TVertexFormat(0, ?, 2, 6, false),
new TVertexFormat(0, 2, 4, 8, false),
};
_test_vao = openGLFactory.NewVertexArrayObject();
_test_vao.AppendVertexBuffer(0, 12, attributes);
_test_vao.Create(format, indices);
_test_vao.Bind();
// Create shader program
string vert_shader = @"#version 460 core
layout (location = 0) in vec4 a_pos;
layout (location = 1) in vec3 a_nv;
layout (location = 2) in vec4 a_color;
layout (location = 0) out TVertexData
{
vec3 pos;
vec3 nv;
vec4 col;
} outData;
layout(std430, binding = 1) buffer MVP
{
mat4 proj;
mat4 view;
mat4 model;
} mvp;
void main()
{
mat4 mv_mat = mvp.view * mvp.model;
mat3 normal_mat = inverse(transpose(mat3(mv_mat)));
outData.nv = normalize(normal_mat * a_nv);
outData.col = a_color;
vec4 viewPos = mv_mat * a_pos;
outData.pos = viewPos.xyz / viewPos.w;
gl_Position = mvp.proj * viewPos;
}";
string frag_shader = @"#version 460 core
out vec4 frag_color;
layout (location = 0) in TVertexData
{
vec3 pos;
vec3 nv;
vec4 col;
} inData;
layout(std430, binding = 2) buffer TLight
{
vec4 u_lightDir;
float u_ambient;
float u_diffuse;
float u_specular;
float u_shininess;
} light_data;
void main()
{
vec3 color = inData.col.rgb;
// ambient part
vec3 lightCol = light_data.u_ambient * color;
vec3 normalV = normalize( inData.nv );
vec3 eyeV = normalize( -inData.pos );
vec3 lightV = normalize( -light_data.u_lightDir.xyz );
// diffuse part
float NdotL = max( 0.0, dot( normalV, lightV ) );
lightCol += NdotL * light_data.u_diffuse * color;
// specular part
vec3 halfV = normalize( eyeV + lightV );
float NdotH = max( 0.0, dot( normalV, halfV ) );
float kSpecular = ( light_data.u_shininess + 2.0 ) * pow( NdotH, light_data.u_shininess ) / ( 2.0 * 3.14159265 );
lightCol += kSpecular * light_data.u_specular * color;
frag_color = vec4( lightCol.rgb, inData.col.a );
}";
this._test_prog = openGLFactory.VertexAndFragmentShaderProgram(vert_shader, frag_shader);
this._test_prog.Generate();
// Model view projection shader storage block objects and buffers
TMVP mvp = new TMVP(Matrix4.Identity, Matrix4.Identity, Matrix4.Identity);
this._mvp_ssbo = openGLFactory.NewStorageBuffer();
this._mvp_ssbo.Create(ref mvp);
this._mvp_ssbo.Bind(1);
TLightSource light_source = new TLightSource(new Vector4(-1.0f, -0.5f, -2.0f, 0.0f), 0.2f, 0.8f, 0.8f, 10.0f);
this._light_ssbo = openGLFactory.NewStorageBuffer();
this._light_ssbo.Create(ref light_source);
this._light_ssbo.Bind(2);
this._depth_pack_buffer = openGLFactory.NewPixelPackBuffer();
this._depth_pack_buffer.Create <float>();
// states
GL.Viewport(0, 0, this._cx, this._cy);
//GL.ClearColor(System.Drawing.Color.Beige);
GL.ClearColor(0.2f, 0.3f, 0.3f, 1.0f);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.FrontFace(FrontFaceDirection.Ccw);
GL.CullFace(CullFaceMode.Back);
// matrices and controller
this._view = Matrix4.LookAt(0.0f, -4.0f, 0.0f, 0, 0, 0, 0, 0, 1);
float angle = 90.0f * (float)Math.PI / 180.0f;
float aspect = (float)this._cx / (float)this._cy;
this._projection = Matrix4.CreatePerspectiveFieldOfView(angle, aspect, 0.1f, 100.0f);
_controls = new NavigationControls(
() => { return(new float[] { 0, 0, (float)this._cx, (float)this._cy }); },
() => { return(this._view); },
() => { return(this._projection); },
this.GetDepth,
(cursor_pos) => { return(new Vector3(0, 0, 0)); },
(Matrix4 view) => { this._view = view; }
);
}