public void SetActiveShader(ShaderProgram shader)
{
if (shader == null)
{
Logger.LogError(Logger.ErrorState.Critical, "SetActiveShader, no shader given");
return;
}
if (activeProgram != shader)
{
activeProgram = shader;
activeProgram.Use();
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
if (man.DoesShaderUseCamera(activeProgram))
{
RenderCamera();
}
if (man.DoesShaderUseLights(activeProgram))
{
RenderActiveLights();
}
if (man.DoesShaderSupportUniform(activeProgram, ShaderUniformName.CubeMap))
{
MaterialManager matMan = MaterialManager.GetSingleton();
matMan.SetFromMaterialToShader(activeSkybox, ShaderUniformName.CubeMap, activeProgram);
if (man.DoesShaderSupportUniform(activeProgram, ShaderUniformName.SkyboxRotationMatrix))
{
int rotLoc = activeProgram.GetUniformLocation(ShaderUniformName.SkyboxRotationMatrix);
activeProgram.SetMatrix4Uniform(rotLoc, ref activeSkyboxRotation);
}
}
}
}
public static ShaderUniformManager GetSingleton()
{
if (singleton == null)
{
singleton = new ShaderUniformManager();
}
return(singleton);
}
private void PassLightData(IShaderDataOwner light, int lightIndex)
{
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
man.SetArrayData(activeProgram, ShaderUniformName.LightsArray, ShaderUniformName.LightPositionOrDirection, light, lightIndex);
man.SetArrayData(activeProgram, ShaderUniformName.LightsArray, ShaderUniformName.LightColor, light, lightIndex);
man.SetArrayData(activeProgram, ShaderUniformName.LightsArray, ShaderUniformName.LinearAttenuation, light, lightIndex);
man.SetArrayData(activeProgram, ShaderUniformName.LightsArray, ShaderUniformName.QuadraticAttenuation, light, lightIndex);
}
public void SetFromMaterialToShader(Material mat, ShaderUniformName uniform, ShaderProgram program)
{
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
if (man.DoesShaderSupportUniform(program, uniform))
{
int location = man.GetDataLocation(program, uniform);
if (mat.textureMaps.ContainsKey(uniform))
{
SetTextureUniform(program, location, uniform, mat.textureMaps[uniform]);
}
}
}
public static ShaderAttribute getAttribute(ShaderAttributeName name, ShaderProgram shaderProgram)
{
foreach (ShaderAttribute attr in shaderProgram.attributes)
{
if (attr.name == name)
{
return(attr);
}
}
Logger.LogError(Logger.ErrorState.Critical, "Did not get attribute " + ShaderUniformManager.GetSingleton().GetAttributeName(name));
ShaderAttribute invalid = new ShaderAttribute(ShaderAttributeName.InvalidAttributeName, ShaderDataType.InvalidType);
return(invalid);
}
public int GetAttributeLocation(ShaderAttributeName attribName)
{
foreach (ShaderAttribute a in attributes)
{
if (a.name == attribName)
{
return(a.location);
}
}
ShaderUniformManager uniMan = ShaderUniformManager.GetSingleton();
Logger.LogError(Logger.ErrorState.Limited, "Attribute " + uniMan.GetAttributeName(attribName) + " location not found");
return(-1);
}
public int GetUniformLocation(ShaderUniformName uniformName)
{
foreach (ShaderUniform a in uniforms)
{
if (a.name == uniformName)
{
return(a.location);
}
}
ShaderUniformManager uniMan = ShaderUniformManager.GetSingleton();
Logger.LogError(Logger.ErrorState.Limited, "Uniform " + uniMan.GetUniformName(uniformName) + " location not found in shader program " + programName);
return(-1);
}
// Sets all materials that apply
public void SetMaterialToShader(Material meshMaterial, ShaderProgram program)
{
if (program == null)
{
Logger.LogError(Logger.ErrorState.Limited, "MaterialManager> No program given, cannot set material");
return;
}
if (meshMaterial == null)
{
SetMaterialToShader(defaultMaterial, program);
return;
}
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
// Must try each supported texture uniform
foreach (KeyValuePair <ShaderUniformName, TextureMap> entry in defaultMaterial.textureMaps)
{
ShaderUniformName uniform = entry.Key;
if (!man.DoesShaderSupportUniform(program, uniform))
{
continue;
}
int location = man.GetDataLocation(program, uniform);
if (location == ShaderUniformManager.GetInvalidDataLocation())
{
Logger.LogError(Logger.ErrorState.Limited, "MaterialManager: Shader says to support texture map " + man.GetUniformName(uniform) + " but there is no location for it");
continue;
}
// IMPORTANT PART !
if (meshMaterial.textureMaps.ContainsKey(uniform))
{
SetTextureUniform(program, location, uniform, meshMaterial.textureMaps[uniform]);
}
else
{
if (defaultMaterial.textureMaps.ContainsKey(uniform))
{
SetTextureUniform(program, location, uniform, defaultMaterial.textureMaps[uniform]);
}
else
{
Logger.LogError(Logger.ErrorState.Limited, "MaterialManager: Shader wants a texture map " + man.GetUniformName(uniform) + " that is not in default material");
}
}
}
}
public void RenderCamera()
{
if (activeProgram == null)
{
Logger.LogError(Logger.ErrorState.Critical, "RenderCamera, no active shader");
return;
}
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
man.TrySetData(activeProgram, ShaderUniformName.ViewMatrix, camera);
man.TrySetData(activeProgram, ShaderUniformName.ProjectionMatrix, camera);
man.TrySetData(activeProgram, ShaderUniformName.CameraPosition, camera);
}
public void RenderShaderDataOwnerMesh(DrawableMesh mesh, IShaderDataOwner owner)
{
if (mesh == null)
{
Logger.LogError(Logger.ErrorState.Critical, "RenderMesh, no mesh given");
return;
}
SetActiveShader(mesh.ShaderProgram);
if (activeProgram == null)
{
Logger.LogError(Logger.ErrorState.Critical, "RenderMesh, no active shader");
return;
}
List <ShaderUniformName> ownerUniforms = owner.GetUniforms();
ShaderUniformManager man = ShaderUniformManager.GetSingleton();
foreach (ShaderUniformName name in ownerUniforms)
{
man.SetData(activeProgram, name, owner);
}
if (mesh != owner)
{
List <ShaderUniformName> meshUniforms = mesh.GetUniforms();
foreach (ShaderUniformName name in meshUniforms)
{
man.SetData(activeProgram, name, mesh);
}
}
if (mesh.BoundMaterial != null)
{
MaterialManager matMan = MaterialManager.GetSingleton();
matMan.SetMaterialToShader(mesh.BoundMaterial, activeProgram);
}
mesh.draw();
}
public ShaderProgram(string nameParam, params Shader[] shaders)
{
handle = GL.CreateProgram();
foreach (var shader in shaders)
{
GL.AttachShader(handle, shader.Handle);
}
GL.LinkProgram(handle);
// Check link errors
int successValue = 0;
GL.GetProgram(handle, GetProgramParameterName.LinkStatus, out successValue);
if (successValue == 0)
{
Logger.LogError(Logger.ErrorState.Limited, "Shader link failed: " + GL.GetProgramInfoLog(handle));
}
programName = nameParam;
Logger.LogInfoLinePart("Creating Shader Program: ", ConsoleColor.Gray);
Logger.LogInfoLinePart(programName, ConsoleColor.Cyan);
Logger.LogInfoLineEnd();
// Load Uniforms
///////////////////////////////////
int uniformAmount = -1;
GL.GetProgram(handle, GetProgramParameterName.ActiveUniforms, out uniformAmount);
Error.checkGLError("Shader()");
ShaderUniformManager uniManager = ShaderUniformManager.GetSingleton();
Logger.LogInfo("Program linked.");
uniforms = new List <ShaderUniform>(uniformAmount);
int maxShaderNameSize = 100;
StringBuilder shaderName = new StringBuilder(maxShaderNameSize);
int writtenLength;
int uniformSize;
ActiveUniformType type;
Logger.LogInfo("Uniforms (" + uniformAmount + ") >>>");
for (int i = 0; i < uniformAmount; i++)
{
GL.GetActiveUniform(this.handle, i, maxShaderNameSize, out writtenLength, out uniformSize, out type, shaderName);
string uniformName = shaderName.ToString();
ShaderSizeInfo info = uniManager.GetTypeSizeInfo(type);
ShaderUniform uniform = uniManager.CreateShaderUniform(uniformName, type, GetUniformLocation(this.handle, uniformName));
Logger.LogInfoLinePart(" " + i, ConsoleColor.White);
Logger.LogInfoLinePart("\t" + uniManager.GetDataTypeString(uniManager.UniformTypeToDataType(type)), ConsoleColor.Cyan);
Logger.LogInfoLinePart("\t" + uniformName + " (" + info.sizeElements + ")", ConsoleColor.White);
if (uniform.IsValid())
{
Logger.LogInfoLinePart("\t\t [", ConsoleColor.Gray);
Logger.LogInfoLinePart("OK", ConsoleColor.Green);
Logger.LogInfoLinePart("]", ConsoleColor.Gray);
uniforms.Add(uniform);
}
Logger.LogInfoLineEnd();
}
int attributeAmount = -1;
GL.GetProgram(handle, GetProgramParameterName.ActiveAttributes, out attributeAmount);
ActiveAttribType attribType;
int attrSize = -1;
Logger.LogInfo("Attributes (" + attributeAmount + ") >>>");
attributes = new List <ShaderAttribute>(attributeAmount);
for (int i = 0; i < attributeAmount; i++)
{
GL.GetActiveAttrib(this.handle, i, maxShaderNameSize, out writtenLength, out attrSize, out attribType, shaderName);
string attribName = shaderName.ToString();
int location = GetAttributeLocation(handle, attribName);
ShaderSizeInfo info = uniManager.GetTypeSizeInfo(attribType);
ShaderAttribute attribute = uniManager.CreateShaderAttribute(attribName, attribType, GetAttributeLocation(this.handle, attribName), info.sizeElements);
Logger.LogInfoLinePart(" " + i, ConsoleColor.White);
Logger.LogInfoLinePart("\t" + uniManager.GetDataTypeString(uniManager.AttribTypeToDataType(attribType)), ConsoleColor.Cyan);
Logger.LogInfoLinePart("\t" + attribName + " (" + info.sizeElements + ")", ConsoleColor.White);
Logger.LogInfoLinePart("\t " + location, ConsoleColor.Red);
if (attribute.IsValid())
{
Logger.LogInfoLinePart("\t\t [", ConsoleColor.Gray);
Logger.LogInfoLinePart("OK", ConsoleColor.Green);
Logger.LogInfoLinePart("]", ConsoleColor.Gray);
attributes.Add(attribute);
}
Logger.LogInfoLineEnd();
}
foreach (var shader in shaders)
{
GL.DeleteShader(shader.Handle);
}
}
public TextureMap GetMap(ShaderUniformName uniformName)
{
if (textureMaps.ContainsKey(uniformName))
{
return(textureMaps[uniformName]);
}
else
{
Logger.LogError(Logger.ErrorState.Limited, "Material " + materialName + " does not have a map for " + ShaderUniformManager.GetSingleton().GetUniformName(uniformName) + "");
return(MaterialManager.GetSingleton().GetDefaultMap(uniformName));
}
}
public TextureMap GetDefaultMap(ShaderUniformName uniformName)
{
if (defaultMaterial.textureMaps.ContainsKey(uniformName))
{
return(defaultMaterial.textureMaps[uniformName]);
}
else
{
Logger.LogError(Logger.ErrorState.Critical, "MaterialManager's default material does not have map for " + ShaderUniformManager.GetSingleton().GetUniformName(uniformName));
return(null);
}
}
public void SetTextureUniform(ShaderProgram shaderProgram, int location, ShaderUniformName uniform, TextureMap map)
{
int textureUnit = GetTextureUnitForMap(uniform);
if (uniform == ShaderUniformName.DiffuseMap)
{
GL.ActiveTexture(TextureUnit.Texture0);
}
else if (uniform == ShaderUniformName.IlluminationMap)
{
GL.ActiveTexture(TextureUnit.Texture1);
}
else if (uniform == ShaderUniformName.NormalMap)
{
GL.ActiveTexture(TextureUnit.Texture2);
}
else if (uniform == ShaderUniformName.RoughnessMap)
{
GL.ActiveTexture(TextureUnit.Texture3);
}
else if (uniform == ShaderUniformName.MetallicMap)
{
GL.ActiveTexture(TextureUnit.Texture4);
}
else if (uniform == ShaderUniformName.HeightMap)
{
GL.ActiveTexture(TextureUnit.Texture5);
}
else if (uniform == ShaderUniformName.CubeMap)
{
GL.ActiveTexture(TextureUnit.Texture6);
}
if (textureUnit == -1)
{
Logger.LogError(Logger.ErrorState.Limited, "No defined texture unit for uniform " + ShaderUniformManager.GetSingleton().GetUniformName(uniform) + ", cannot bind");
}
if (uniform == ShaderUniformName.CubeMap)
{
GL.BindTexture(TextureTarget.TextureCubeMap, map.textureGLIndex);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, map.textureGLIndex);
}
shaderProgram.SetSamplerUniform(location, textureUnit);
}
