// We actually use our own Quad Data so ignore the input
public void bindModelData(WorldObject worldObject)
{
GL.BindVertexArray(worldObject.mesh.vertexArrayObject);
// Set the types of buffer data
GL.BindBuffer(BufferTarget.ArrayBuffer, worldObject.mesh.vertexBufferObject);
GL.VertexAttribPointer(positionLocation, 3, VertexAttribPointerType.Float, false, 0, 0);
GL.BindBuffer(BufferTarget.ArrayBuffer, worldObject.mesh.normalBufferObject);
GL.VertexAttribPointer(normalLocation, 3, VertexAttribPointerType.Float, false, 0, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, worldObject.mesh.indexBufferObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, worldObject.mesh.texcoordsBuffer);
GL.VertexAttribPointer(texcoordsLocation, 2, VertexAttribPointerType.Float, true, 0, 0);
GL.BindVertexArray(0);
}
// Render Objects into the ShadowMap
public void render(WorldObject worldObject, Matrix4 viewMatrix)
{
// Activate the states for the buffers etc.
GL.BindVertexArray(worldObject.mesh.vertexArrayObject);
GL.BindTexture(TextureTarget.Texture2D, -1);
// Enable the model data
GL.EnableVertexAttribArray(positionLocation);
GL.EnableVertexAttribArray(normalLocation);
// Upload Parameters
uploadParameters(worldObject.modelMatrix, viewMatrix);
// Render Object
GL.DrawElements(BeginMode.Triangles, worldObject.mesh.indices.Count, DrawElementsType.UnsignedInt, 0);
// Clean Up
GL.BindVertexArray(0);
GL.DisableVertexAttribArray(positionLocation);
GL.DisableVertexAttribArray(normalLocation);
}
// We actually use our own Quad Data so ignore the input
public void bindModelData(WorldObject sun)
{
GL.BindVertexArray(vertexArrayObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo_fbo_vertices);
GL.VertexAttribPointer(
positionLocation, // attribute
3, // number of elements per vertex, here (x,y,z)
VertexAttribPointerType.Float, // the type of each element
false, // take our values as-is
0, // no extra data between each position
0 // offset of first element
);
GL.BindBuffer(BufferTarget.ArrayBuffer, tbo_fbo_texcoords);
GL.VertexAttribPointer(
texcoordsLocation, // attribute
2, // number of elements per vertex, here (x,y)
VertexAttribPointerType.Float, // the type of each element
true, // take our values as-is
0, // no extra data between each position
0 // offset of first element
);
GL.BindVertexArray(0);
}
private void uploadParameters(WorldObject worldObject, Matrix4 viewMatrix, Matrix4 projectionMatrix, Matrix4 depthViewProjectionMatrix, Vector3 lightDirection)
{
// Matrices for Shader
Matrix4 mv = worldObject.modelMatrix * viewMatrix;
Matrix4 mvp = mv * projectionMatrix;
Matrix4 mNormal = Utility.getNormalMatrix(mv);
GL.UniformMatrix4(mvpLocation, false, ref mvp);
GL.UniformMatrix4(viewModelLocation, false, ref mv);
GL.UniformMatrix4(normalMatrixLocation, false, ref mNormal);
// Set Light Direction
GL.Uniform3(lightDirectionLocation, Vector3.Transform(lightDirection, viewMatrix.ClearTranslation()));
// Compute the MVP matrix from the light's point of view (and add a bias)
Matrix4 depthMVP = worldObject.modelMatrix * depthViewProjectionMatrix * biasMatrix;
GL.UniformMatrix4(depthBiasMVPLocation, false, ref depthMVP);
GL.Uniform1(shadowMapLocation, 0);
GL.Uniform1(textureLocation, 1);
GL.Uniform1(useStratifiedPoissonSamplingLocation, useStratifiedPoissonSampling);
if(worldObject.mesh.isTextured == true)
GL.Uniform1(useModelTextureLocation, 1f);
else GL.Uniform1(useModelTextureLocation, 0f);
// Phong
GL.Uniform3(diffuseLocation, worldObject.diffuse);
GL.Uniform3(ambientLocation, worldObject. ambient);
GL.Uniform3(specularLocation, worldObject.specular);
GL.Uniform1(shininessLocation, worldObject.shininess);
}
public void render(WorldObject worldObject, Matrix4 viewMatrix, Matrix4 projectionMatrix, Matrix4 depthViewProjectionMatrix, Vector3 lightDirection, int shadowMapTexture)
{
// Activate the states for the buffers etc.
GL.BindVertexArray(worldObject.mesh.vertexArrayObject);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, shadowMapTexture);
GL.ActiveTexture(TextureUnit.Texture1);
GL.BindTexture(TextureTarget.Texture2D, worldObject.mesh.textureID);
// Enable the model data
GL.EnableVertexAttribArray(positionLocation);
GL.EnableVertexAttribArray(normalLocation);
GL.EnableVertexAttribArray(texcoordsLocation);
// Upload Parameters
uploadParameters(worldObject, viewMatrix, projectionMatrix, depthViewProjectionMatrix, lightDirection);
// Render Object
GL.DrawElements(BeginMode.Triangles, worldObject.mesh.indices.Count, DrawElementsType.UnsignedInt, 0);
// Clean Up
GL.BindVertexArray(0);
GL.BindTexture(TextureTarget.Texture2D, -1);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, -1);
GL.DisableVertexAttribArray(positionLocation);
GL.DisableVertexAttribArray(normalLocation);
GL.DisableVertexAttribArray(texcoordsLocation);
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
inputManager = new InputManager(this, camera);
phongShader = new PhongShader(FileManager.getMediaFile("phongVS.glsl"), FileManager.getMediaFile("phongFS.glsl"));
postProcessShader = new PostProcessShader(FileManager.getMediaFile("postProcessVS.glsl"), FileManager.getMediaFile("postProcessFS.glsl"));
volumetricLightingShader = new VolumetricLightingShader(FileManager.getMediaFile("volumetricLightingVS.glsl"), FileManager.getMediaFile("volumetricLightingFS.glsl"));
blurShader = new PostProcessShader(FileManager.getMediaFile("gaussianBlurVS.glsl"), FileManager.getMediaFile("gaussianBlurFS.glsl"));
blurShader2 = new PostProcessShader(FileManager.getMediaFile("gaussianBlurVS.glsl"), FileManager.getMediaFile("gaussianBlurFS.glsl"));
shadowMapShader = new DepthMapShader(FileManager.getMediaFile("depthMapVS.glsl"), FileManager.getMediaFile("depthMapFS.glsl"));
depthMapShader = new DepthMapShader(FileManager.getMediaFile("depthMapVS.glsl"), FileManager.getMediaFile("depthMapFS.glsl"), screenWidth, screenHeight);
shadowMappingShader = new ShadowMappingShader(FileManager.getMediaFile("shadowMappingVS.glsl"), FileManager.getMediaFile("shadowMappingFS.glsl"));
blackShader = new PhongShader(FileManager.getMediaFile("blackVS.glsl"), FileManager.getMediaFile("blackFS.glsl"));
whiteShader = new PhongShader(FileManager.getMediaFile("whiteVS.glsl"), FileManager.getMediaFile("whiteFS.glsl"));
// Load Models
sun.loadModelFromFile("sun.3ds");
sun.position = new Vector3(20f, 30f, -70f);
sun.scale = new Vector3(2f);
sun.update();
monkey.loadModelFromFile("monkey.3ds");
monkey.position = new Vector3(20f, 4f, 2f);
monkey.update();
monkey.diffuse = new Vector3(0.1f, 0.1f, 0.8f);
monkey.ambient = new Vector3(0.05f, 0.05f, 0.4f);
magicBox.loadModelFromFile("magicBox.3ds");
magicBox.position = new Vector3(20f, 6f, 0f);
magicBox.scale = new Vector3(5f);
magicBox.update();
magicBox.diffuse = new Vector3(0.2f, 0.2f, 0f);
magicBox.ambient = new Vector3(0.1f, 0.1f, 0f);
// No Specular for the magicBox
magicBox.specular = new Vector3(0f);
magicBox.shininess = 1f;
//Load floor
floor.loadModelFromFile("floor.3ds");
floor.position = new Vector3(0f, 0f, -10f);
// Scale the Floor (and the texCoords)
floor.scale = new Vector3(1000f, 1f, 1000f);
//floor.scale = new Vector3(0.05f, 0.05f, 0.05f);
// floor.rotation = new Vector3(45, 0, 0);
for (int i = 0; i < floor.mesh.textureCoordinates.Count; i++)
floor.mesh.textureCoordinates[i] *= 200f;
floor.mesh.updateTextureCoordinates();
floor.update();
// No Specular for floor
floor.specular = new Vector3(0f);
floor.shininess = 1f;
//Load trees
Random random = new Random();
for (int x = 0; x < 2; x++)
{
for (int z = 0; z < 10; z++)
{
WorldObject tree = new WorldObject();
tree.loadModelFromFile("tree.3ds");
tree.position = new Vector3((x * 10f) - 5f, 0f, -z * 6f);
tree.scale = new Vector3(2f);
tree.rotation = new Vector3(0f, (float)(random.NextDouble() * Math.PI * 2.0), 0f);
tree.update();
tree.diffuse = new Vector3(0.6f, 0.3f, 0f);
tree.ambient = new Vector3(0.3f, 0.15f, 0f);
trees.Add(tree);
}
}
// Move initial Position of the Camera away from origin
camera.Position += new Vector3(10f, 10f, 10f);
// Hide Mouse Cursor
CursorVisible = false;
}