[Rendering] Updated most default shaders to Slang standards;

Author: LittleCodingFox

BuiltinResources/Hidden/Shaders/Debug/NormalDebug.shader

@@ -1,44 +1,49 @@
 Begin Parameters
 
-varying vec3 a_position : POSITION
-varying vec3 a_normal : NORMAL
-varying vec3 v_normal : NORMAL
-
 End Parameters
 
 Begin Instancing
 End Instancing
 
-Begin Vertex
+Begin Common
+
+struct VertexOutput
+{
+    float4 position : SV_Position;
+    float3 normal;
+};
 
-$input a_position, a_normal
-$output v_normal
+End Common
 
-void main()
+Begin Vertex
+
+struct Input
 {
-	mat4 model = StapleModelMatrix;
+    float3 position : POSITION;
+	float3 normal : NORMAL;
+};
 
-	#ifdef SKINNING
-	model = StapleGetSkinningMatrix(model, a_indices, a_weight);
-	#endif
+[shader("vertex")]
+VertexOutput VertexMain(Input input)
+{
+    VertexOutput output;
 
-	mat4 projViewWorld = mul(mul(u_proj, u_view), model);
-	vec4 v_pos = mul(projViewWorld, vec4(a_position, 1.0));
+    float3 position = input.position;
 
-	v_normal = a_normal;
+    output.normal = input.normal;
+    output.position = mul(mul(mul(projection, view), world), float4(position, 1.0));
 
-	gl_Position = v_pos;
+    return output;
 }
 
 End Vertex
 
 Begin Fragment
 
-$input v_normal
-
-void main()
+[shader("fragment")]
+float4 FragmentMain(VertexOutput input) : SV_Target
 {
-	gl_FragColor = vec4(v_normal * 0.5 + 0.5, 1);
+    return float4(normalize(input.normal) * 0.5 + 0.5, 1);
 }
 
 End Fragment

BuiltinResources/Hidden/Shaders/Debug/TangentDebug.shader

@@ -12,43 +12,50 @@ End Parameters
 Begin Instancing
 End Instancing
 
-Begin Vertex
+Begin Common
+
+struct VertexOutput
+{
+    float4 position : SV_Position;
+    float3 tangent;
+};
 
-$input a_position, a_tangent, a_bitangent
-$output v_tangent, v_bitangent
+End Common
 
-void main()
+Begin Vertex
+
+struct Input
 {
-	mat4 model = StapleModelMatrix;
+    float3 position : POSITION;
+
+#ifdef BITANGENT
+	float3 tangent : BITANGENT;
+#else
+	float3 tangent : TANGENT;
+#endif
+};
 
-	#ifdef SKINNING
-	model = StapleGetSkinningMatrix(model, a_indices, a_weight);
-	#endif
+[shader("vertex")]
+VertexOutput VertexMain(Input input)
+{
+    VertexOutput output;
 
-	mat4 projViewWorld = mul(mul(u_proj, u_view), model);
-	vec4 v_pos = mul(projViewWorld, vec4(a_position, 1.0));
+    float3 position = input.position;
 
-	v_tangent = a_tangent;
-	v_bitangent = a_bitangent;
+    output.tangent = input.tangent;
+    output.position = mul(mul(mul(projection, view), world), float4(position, 1.0));
 
-	gl_Position = v_pos;
+    return output;
 }
 
 End Vertex
 
 Begin Fragment
 
-$input v_tangent, v_bitangent
-
-void main()
+[shader("fragment")]
+float4 FragmentMain(VertexOutput input) : SV_Target
 {
-#if BITANGENT
-	vec3 color = v_bitangent;
-#else
-	vec3 color = v_tangent;
-#endif
-	
-	gl_FragColor = vec4(color * 0.5 + 0.5, 1);
+    return float4(normalize(input.tangent) * 0.5 + 0.5, 1);
 }
 
 End Fragment

BuiltinResources/Hidden/Shaders/Sprite/Sprite.shader

@@ -4,40 +4,59 @@ Blend SrcAlpha OneMinusSrcAlpha
 
 Begin Parameters
 
-varying vec2 v_texcoord0 : TEXCOORD0 = vec2(0.0, 0.0)
-varying vec3 a_position : POSITION
-varying vec2 a_texcoord0 : TEXCOORD0
-
 uniform color mainColor
 uniform texture mainTexture
 
 End Parameters
 
+Begin Common
+
+cbuffer Uniforms
+{
+	float4 mainColor;
+	Sampler2D mainTexture;
+};
+
+struct VertexOutput
+{
+    float4 position : SV_Position;
+	float2 coord;
+    float4 color;
+};
+
+End Common
+
 Begin Vertex
 
-$input a_position, a_texcoord0
-$output v_texcoord0
+struct Input
+{
+    float3 position : POSITION;
+	float2 coord : TEXCOORD0;
+};
 
-void main()
+[shader("vertex")]
+VertexOutput VertexMain(Input input)
 {
-	mat4 projViewWorld = mul(mul(u_proj, u_view), u_model[0]);
+    VertexOutput output;
 
-	vec4 v_pos = mul(projViewWorld, vec4(a_position, 1.0));
+    float3 position = input.position;
+    float4 color = mainColor;
 
-	gl_Position = v_pos;
+    output.color = color;
+	output.coord = input.coord;
+    output.position = mul(mul(mul(projection, view), world), float4(position, 1.0));
 
-	v_texcoord0 = a_texcoord0;
+    return output;
 }
 
 End Vertex
 
 Begin Fragment
 
-$input v_texcoord0
-
-void main()
+[shader("fragment")]
+float4 FragmentMain(VertexOutput input) : SV_Target
 {
-	gl_FragColor = texture2D(mainTexture, v_texcoord0) * mainColor;
+    return mainTexture.Sample(input.coord) * input.color;
 }
 
 End Fragment

BuiltinResources/Hidden/Shaders/UI/imgui.shader

@@ -0,0 +1,59 @@
+Type VertexFragment
+Blend SrcAlpha OneMinusSrcAlpha
+
+Begin Parameters
+
+uniform texture mainTexture
+
+End Parameters
+
+Begin Common
+
+cbuffer Uniforms
+{
+	Sampler2D mainTexture;
+};
+
+struct VertexOutput
+{
+    float4 position : SV_Position;
+	float2 coord;
+    float4 color;
+};
+
+End Common
+
+Begin Vertex
+
+struct Input
+{
+    float3 position : POSITION;
+	float2 coord : TEXCOORD0;
+	float4 color : COLOR0;
+};
+
+[shader("vertex")]
+VertexOutput VertexMain(Input input)
+{
+    VertexOutput output;
+
+    float3 position = input.position;
+
+    output.color = input.color;
+	output.coord = input.coord;
+    output.position = mul(mul(mul(projection, view), world), float4(position, 1.0));
+
+    return output;
+}
+
+End Vertex
+
+Begin Fragment
+
+[shader("fragment")]
+float4 FragmentMain(VertexOutput input) : SV_Target
+{
+    return mainTexture.Sample(input.coord) * input.color;
+}
+
+End Fragment