public void Bind(GLShaderProgram shaderProgram)
{
shaderProgram.SetUniform("diffuseColor", DiffuseColor);
shaderProgram.SetUniform("ambientColor", AmbientColor);
shaderProgram.SetUniform("specularColor", SpecularColor);
//shaderProgram.SetUniform( "emissionColor", EmissionColor );
shaderProgram.SetUniform("specularPower", Shininess);
int textureIndex = 0;
void ActivateTexture(GLTexture texture, string uniformName, TextureTarget target = TextureTarget.Texture2D)
{
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(target, texture?.Id ?? 0);
shaderProgram.SetUniform($"has{uniformName}", texture != null);
shaderProgram.SetUniform(uniformName, textureIndex++);
}
ActivateTexture(Diffuse, "diffuseTexture");
ActivateTexture(Ambient, "ambientTexture");
ActivateTexture(Normal, "normalTexture");
ActivateTexture(Specular, "specularTexture");
ActivateTexture(Reflection, "reflectionTexture", TextureTarget.TextureCubeMap);
ActivateTexture(SpecularPower, "specularPowerTexture");
}
public void Draw(GLShaderProgram shaderProgram)
{
foreach (var mesh in Meshes)
{
mesh.Draw(shaderProgram);
}
}
public void Draw(GLShaderProgram shaderProgram)
{
Material.Bind(shaderProgram);
ElementBuffer.Bind();
GL.DrawElements(PrimitiveType, ElementBuffer.Length, DrawElementsType.UnsignedShort, 0);
}
public void Draw(GLShaderProgram shaderProgram)
{
foreach (var subMesh in SubMeshes)
{
subMesh.Draw(shaderProgram);
}
}
public void Draw(GLShaderProgram shaderProgram)
{
shaderProgram.SetUniform("hasNormal", NormalBuffer != null);
shaderProgram.SetUniform("hasTexCoord", TexCoordBuffer != null);
shaderProgram.SetUniform("hasTexCoord2", TexCoord2Buffer != null);
shaderProgram.SetUniform("hasColor", ColorBuffer != null);
shaderProgram.SetUniform("hasTangent", TangentBuffer != null);
GL.BindVertexArray(VertexArrayId);
foreach (var indexTable in IndexTables)
{
indexTable.Draw(shaderProgram);
}
}
public static GLShaderProgram Create(string shaderName)
{
if (sShaderPrograms.TryGetValue(shaderName, out GLShaderProgram shaderProgram))
{
return(shaderProgram);
}
var fragmentShaderFilePath = ResourceStore.GetPath(Path.Combine("Shaders", shaderName + ".frag"));
var vertexShaderFilePath = ResourceStore.GetPath(Path.Combine("Shaders", shaderName + ".vert"));
if (!File.Exists(fragmentShaderFilePath) || !File.Exists(vertexShaderFilePath))
{
return(null);
}
int fragmentShader = CreateShader(ShaderType.FragmentShader, File.ReadAllText(fragmentShaderFilePath));
if (fragmentShader == -1)
{
return(null);
}
int vertexShader = CreateShader(ShaderType.VertexShader, File.ReadAllText(vertexShaderFilePath));
if (vertexShader == -1)
{
return(null);
}
var shaderProgramId = GL.CreateProgram();
GL.AttachShader(shaderProgramId, fragmentShader);
GL.AttachShader(shaderProgramId, vertexShader);
GL.LinkProgram(shaderProgramId);
GL.DeleteShader(fragmentShader);
GL.DeleteShader(vertexShader);
shaderProgram = new GLShaderProgram(shaderName, shaderProgramId);
sShaderPrograms.Add(shaderName, shaderProgram);
return(shaderProgram);
}
