From 8add900db43bdd7c38805925524a0aa5bd333df5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Mart=C3=AD?=
 <49535803+damacaa@users.noreply.github.com>
Date: Sat, 5 Oct 2024 16:13:55 +0200
Subject: [PATCH] Renderer refactor

---
 src/weird-renderer/Renderer.cpp        |  4 +++
 src/weird-renderer/Texture.cpp         | 15 ++++------
 src/weird-renderer/Texture.h           |  5 ----
 src/weird-renderer/shaders/output.frag | 41 +++++++-------------------
 4 files changed, 21 insertions(+), 44 deletions(-)

diff --git a/src/weird-renderer/Renderer.cpp b/src/weird-renderer/Renderer.cpp
index e423680..432b7ae 100644
--- a/src/weird-renderer/Renderer.cpp
+++ b/src/weird-renderer/Renderer.cpp
@@ -196,7 +196,11 @@ namespace WeirdRenderer
 		// Tell OpenGL which Shader Program we want to use
 		glUseProgram(m_outputShaderProgram.ID);
 
+		GLuint u_colorTextureLocation = glGetUniformLocation(m_outputShaderProgram.ID, "u_colorTexture");
+		glUniform1i(u_colorTextureLocation, 0);
+
 		m_outputTexture.bind(0);
+
 		m_outputRenderPlane.Draw(m_outputShaderProgram);
 
 
diff --git a/src/weird-renderer/Texture.cpp b/src/weird-renderer/Texture.cpp
index eb3e8a4..e2c6cc4 100644
--- a/src/weird-renderer/Texture.cpp
+++ b/src/weird-renderer/Texture.cpp
@@ -111,8 +111,6 @@ namespace WeirdRenderer
 		glBindTexture(GL_TEXTURE_2D, ID);
 	}
 
-
-
 	void Texture::unbind() const
 	{
 		glBindTexture(GL_TEXTURE_2D, 0);
@@ -211,21 +209,20 @@ namespace WeirdRenderer
 	Texture::Texture(int width, int height, GLuint filterMode)
 	{
 		glGenTextures(1, &ID);
-		bind();
+		glBindTexture(GL_TEXTURE_2D, ID);
 
-		unsigned char* textureData = new unsigned char[width * height * 4];
+		float* textureData = new float[width * height * 4];
 
 		for (size_t i = 0; i < width * height * 4; i++)
 		{
-			textureData[i] = 255;
+			textureData[i] = 1.0f;
 		}
 
-
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, textureData);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filterMode);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filterMode);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); // Prevents edge bleeding
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); // Prevents edge bleeding
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
 
 		delete[] textureData;
diff --git a/src/weird-renderer/Texture.h b/src/weird-renderer/Texture.h
index 849d5e6..e792791 100644
--- a/src/weird-renderer/Texture.h
+++ b/src/weird-renderer/Texture.h
@@ -40,11 +40,6 @@ namespace WeirdRenderer
 		void dispose() const;
 
 		void saveToDisk(const char* fileName);
-
-	private:
-
-		GLenum m_textureSlot;
-
 	};
 }
 
diff --git a/src/weird-renderer/shaders/output.frag b/src/weird-renderer/shaders/output.frag
index 9d6ae43..c285e80 100644
--- a/src/weird-renderer/shaders/output.frag
+++ b/src/weird-renderer/shaders/output.frag
@@ -1,7 +1,7 @@
 #version 330 core
 
 // Outputs colors in RGBA
-out vec4 FragColor;
+out vec3 FragColor;
 
 uniform vec2 u_resolution;
 uniform float u_renderScale;
@@ -9,9 +9,9 @@ uniform float u_renderScale;
 uniform float u_time;
 
 uniform sampler2D u_colorTexture;
-uniform sampler2D u_depthTexture;
 
-float rand(vec2 co){
+float rand(vec2 co)
+{
     return fract(sin(dot(co, vec2(12.9898, 78.233))) * 43758.5453);
 }
 
@@ -24,38 +24,19 @@ void main()
     vec4 color = texture(u_colorTexture, screenUV);
     float distance = color.w;
 
-
-     vec2 texelOffset = vec2(0.005, 0.0025);
-
-    // Sample the texture at the center and neighboring pixels
-    vec4 colorCenter = texture(u_colorTexture, screenUV);
-    vec4 colorRight = texture(u_colorTexture, screenUV + vec2(texelOffset.x, 0.0));
-    vec4 colorLeft = texture(u_colorTexture, screenUV - vec2(texelOffset.x, 0.0));
-    vec4 colorUp = texture(u_colorTexture, screenUV + vec2(0.0, texelOffset.y));
-    vec4 colorDown = texture(u_colorTexture, screenUV - vec2(0.0, texelOffset.y));
-
-    // Simple average of the neighboring pixels for antialiasing
-    vec4 averagedColor = (colorCenter + colorRight + colorLeft + colorUp + colorDown) / 5.0;
-
-    //distance = averagedColor.r;
-
-    //distance = sin(100.0 * distance);
-
-    //vec3 col = vec3(distance);
     vec3 col = distance <= 0.5 ? color.xyz :  vec3(0.9);
 
-    //vec2 TexCoords = fract(gl_FragCoord.xy * u_renderScale);
-
     // Dot effect
-    //vec2 dist = TexCoords - vec2(0.5f, 0.5f);
-    //float mask = ((1-length(dist)) - 0.25) * 2;
-    //col *= mask;
+    // vec2 TexCoords = fract(gl_FragCoord.xy * u_renderScale);
+    // vec2 dist = TexCoords - vec2(0.5f, 0.5f);
+    // float mask = ((1.0 -length(dist)) - 0.25) * 2;
 
     // CRT Line effect
-    //float mask = sin(3.14 * (gl_FragCoord.y * u_renderScale));
-    //mask = mask > 0.25 ? 1.0 : 0.0;
-    //col *= mask;
+    // float mask = sin(3.14 * (gl_FragCoord.y * u_renderScale));
+    // mask = mask > 0.25 ? 1.0 : 0.0;
 
+    //FragColor = color.xyz * mask;
     //FragColor = color.wwww;
-    FragColor = color;
+    
+    FragColor = color.xyz;
 }