Add bindless texturing sample

update samples to use optimizedClearValue

02-Cubes/cubes.cpp

@@ -39,6 +39,7 @@ struct Cubes : public ExampleFramework {
 			.aspect = {.HasDepth = true},
 			.width = (uint32_t)width,
 			.height = (uint32_t)height,
+			.optimizedClearValue = {1},
 			.format = RGL::TextureFormat::D32SFloat,
 			.debugName = "Depth Texture"
 			}

03-Imgui/imgui.cpp

@@ -42,6 +42,7 @@ struct ImGuiDemo : public ExampleFramework {
 			.aspect = {.HasDepth = true},
 			.width = (uint32_t)width,
 			.height = (uint32_t)height,
+			.optimizedClearValue = {1},
 			.format = RGL::TextureFormat::D32SFloat
 			}
 		);

04-Deferred/deferred.cpp

@@ -58,6 +58,7 @@ struct Deferred : public ExampleFramework {
             .aspect = {.HasDepth = true},
             .width = (uint32_t)width,
             .height = (uint32_t)height,
+            .optimizedClearValue = {1},
             .format = RGL::TextureFormat::D32SFloat,
             .debugName = "Depth Texture"
             }

05-XR/xr.cpp

@@ -544,6 +544,7 @@ struct XR : public ExampleFramework {
 			.aspect = {.HasDepth = true},
 			.width = (uint32_t)width,
 			.height = (uint32_t)height,
+			.optimizedClearValue = {1},
 			.format = RGL::TextureFormat::D32SFloat,
 			.debugName = "Depth Texture"
 			}

06-Asteroids/asteroids.cpp

@@ -69,6 +69,7 @@ struct Asteroids : public ExampleFramework {
             .aspect = {.HasDepth = true},
             .width = (uint32_t)width,
             .height = (uint32_t)height,
+            .optimizedClearValue = {1},
             .format = RGL::TextureFormat::D32SFloat
             }
         );

07-Mipmap/mipmap.cpp

@@ -272,6 +272,7 @@ struct Mipmap : public ExampleFramework {
             .aspect = {.HasDepth = true},
             .width = (uint32_t)width,
             .height = (uint32_t)height,
+            .optimizedClearValue = {1},
             .format = RGL::TextureFormat::D32SFloat,
             .debugName = "Depth Texture"
             }

09-BindlessTexturing/bindlesstexturing.cpp

@@ -20,7 +20,7 @@ struct BindlessTexturing : public ExampleFramework {
 
     RGLCommandBufferPtr commandBuffer;
     RGLBufferPtr vertexBuffer, indexBuffer;
-    RGLTexturePtr depthTexture;
+    RGLTexturePtr depthTexture, tx1, tx2, tx3;
     RGLSamplerPtr sampler;
     RGLRenderPipelinePtr renderPipeline;
     RGLRenderPassPtr renderPass;
@@ -66,6 +66,7 @@ struct BindlessTexturing : public ExampleFramework {
                 },
                 {
                     .binding = 1,
+                    .count = 512,
                     .type = RGL::BindingType::SampledImage,
                     .stageFlags = RGL::BindingVisibility::Fragment,
                 },
@@ -170,6 +171,24 @@ struct BindlessTexturing : public ExampleFramework {
         commandBuffer = commandQueue->CreateCommandBuffer();
         camera.position.z = 10;
         camera.position.y = 0.3;
+
+        auto loadTx = [this](const std::string_view name, RGLTexturePtr& tx) {
+            auto imagedata = LoadImage(name);
+
+            tx = device->CreateTextureWithData(RGL::TextureConfig{
+                .usage = {.TransferDestination = true, .Sampled = true},
+                .aspect = {.HasColor = true},
+                .width = imagedata.width,
+                .height = imagedata.height,
+                .format = RGL::TextureFormat::RGBA8_Unorm
+                },
+                imagedata.bytes
+            );
+        };
+        loadTx("tx29.png",tx1);
+        loadTx("tx34.png",tx2);
+        loadTx("tx39.png",tx3);
+
     }
 
     void tick() final {
@@ -198,10 +217,14 @@ struct BindlessTexturing : public ExampleFramework {
                 .extent = {nextImgSize.width, nextImgSize.height}
             });
 
+        auto heapStart = device->GetGlobalBindlessTextureHeap();
+
         commandBuffer->BindRenderPipeline(renderPipeline);
         commandBuffer->SetVertexBytes(ubo, 0);
         commandBuffer->SetVertexBuffer(vertexBuffer);
         commandBuffer->SetIndexBuffer(indexBuffer);
+        commandBuffer->SetFragmentSampler(sampler,0);
+        commandBuffer->SetFragmentTexture(heapStart, 1);        // expose all the textures
         commandBuffer->DrawIndexed(std::size(BasicObjects::Quad::indices));
 
         commandBuffer->EndRendering();
@@ -217,6 +240,9 @@ struct BindlessTexturing : public ExampleFramework {
     }
 
     void sampleshutdown() final {
+        tx1.reset();
+        tx2.reset();
+        tx3.reset();
         renderPass.reset();
         depthTexture.reset();
         indexBuffer.reset();
@@ -233,6 +259,7 @@ struct BindlessTexturing : public ExampleFramework {
             .aspect = {.HasDepth = true},
             .width = (uint32_t)width,
             .height = (uint32_t)height,
+            .optimizedClearValue = {1},
             .format = RGL::TextureFormat::D32SFloat,
             .debugName = "Depth Texture"
             }

09-BindlessTexturing/btex.frag

@@ -1,8 +1,12 @@
+#extension GL_EXT_nonuniform_qualifier : enable
 
+layout(binding = 0) uniform sampler g_sampler;
+layout(binding = 1) uniform texture2D textures[];
 
 layout(location = 0) in vec2 uv;
+layout(location = 1) in flat uint instance;
 layout(location = 0) out vec4 outcolor;
 void main(){
 
-    outcolor = vec4(1,1,0,1);
+    outcolor = vec4(texture(sampler2D(textures[instance], g_sampler),uv).rgb,1);
 }

09-BindlessTexturing/btex.vert

@@ -7,8 +7,12 @@ layout(location = 0) in vec2 inPosition;
 layout(location = 1) in vec2 inUV;
 
 layout(location = 0) out vec2 outUV;
+layout(location = 1) out flat uint instance;
 
 void main(){
+
+    instance = gl_InstanceID;
+
     gl_Position = ubo.viewProj * vec4(inPosition, 0, 1);
     outUV = inUV;
 }