/// <summary>
/// Creates the uniforms for the deferred lighting pass for one light.
/// </summary>
/// <param name="lc">The light component, needed to decide if we have a Shadow Cube Map or a standard shadow map.</param>
/// <param name="isCascaded">If cascaded shadow mapping is used, this should be set to true.</param>
/// <param name="numberOfCascades">If cascaded shadow mapping is used this is the number of cascades.</param>
public static string DeferredLightAndShadowUniforms(Light lc, bool isCascaded, int numberOfCascades)
{
var uniforms = new List <string>
{
"uniform Light light;"
};
if (!isCascaded)
{
if (lc.IsCastingShadows)
{
if (lc.Type != LightType.Point)
{
uniforms.Add(GLSL.CreateUniform(GLSL.Type.Sampler2D, UniformNameDeclarations.ShadowMap));
}
else
{
uniforms.Add(GLSL.CreateUniform(GLSL.Type.SamplerCube, UniformNameDeclarations.ShadowCubeMap));
}
}
uniforms.Add(GLSL.CreateUniform(GLSL.Type.Mat4, UniformNameDeclarations.LightSpaceMatrix));
}
else
{
//No implementation for GLSL.CreateArrayUniform yet...
uniforms.Add($"uniform {GLSL.DecodeType(GLSL.Type.Sampler2D)}[{numberOfCascades}] ShadowMaps;\n");
uniforms.Add($"uniform {GLSL.DecodeType(GLSL.Type.Vec2)}[{numberOfCascades}] ClipPlanes;\n");
uniforms.Add($"uniform {GLSL.DecodeType(GLSL.Type.Mat4)}[{numberOfCascades}] LightSpaceMatrices;\n");
}
uniforms.Add(GLSL.CreateUniform(GLSL.Type.Int, UniformNameDeclarations.RenderPassNo));
uniforms.Add(GLSL.CreateUniform(GLSL.Type.Int, UniformNameDeclarations.SsaoOn));
uniforms.Add(GLSL.CreateUniform(GLSL.Type.Vec4, UniformNameDeclarations.BackgroundColor));
return(string.Join("\n", uniforms));
}
