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 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]);
}
}
}
// 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");
}
}
}
}